首页 > 最新文献

Surveys in Geophysics最新文献

英文 中文
Integrated Geophysical and Geomorphological Studies of Caves in Calcarenite Limestones (Jaskinia pod Świecami Cave, Poland) 钙钛矿灰岩洞穴的综合地球物理和地貌研究(波兰 Jaskinia pod Świecami 洞穴)
IF 4.9 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2024-01-31 DOI: 10.1007/s10712-023-09821-9
Bernadetta Pasierb, Grzegorz Gajek, Jan Urban, Wiesław Nawrocki

The occurrence of subsurface karst caves can cause the development of superficial depressions which, in turn, may pose a construction hazard. Identifying such a substratum requires integrated non-invasive measurement methods. The main objective of the study was to demonstrate the effectiveness of the non-invasive ERT, TLS, and GPR survey techniques in identifying the karst floor and determining the direction of discontinuities around the cave. The paper analyzes the limitations of the methods used in the study of heterogeneous media. These limitations are related to the methodology and measurement conditions, data processing, and interpretation in the context of the resolution and depth range. The study was conducted using the example of the Jaskinia pod Świecami cave, formed in the Sarmatianal calcarenites in Poland. The research confirmed its complex karst-anthropogenic genesis. The cave was formed as a result of the infiltration of rainwater and the dissolution of limestone by groundwater, while the paleokarst forms that are characteristic of it and of the surrounding caves and occur in their vicinity, i.e., narrow ridges called "karst candles", were formed as a result of water circulation during the local permafrost degradation in the middle Pleistocene. However, these forms were modified in the Upper Pleistocene and Holocene, as indicated by ERT images.

地下岩溶洞穴的出现会导致表层洼地的形成,而表层洼地又会对施工造成危害。识别这样的底层需要综合的非侵入式测量方法。这项研究的主要目的是证明非侵入式 ERT、TLS 和 GPR 测量技术在识别岩溶底层和确定洞穴周围不连续面方向方面的有效性。本文分析了用于研究异质介质的方法的局限性。这些局限性与方法和测量条件、数据处理以及分辨率和深度范围的解释有关。研究以形成于波兰萨尔马特钙钛矿的 Jaskinia pod Świecami 洞穴为例进行。研究证实了其复杂的岩溶-人类成因。该洞穴的形成是雨水渗透和地下水溶解石灰岩的结果,而该洞穴及其周边洞穴特有的古岩溶形态,即被称为 "岩溶烛光 "的狭窄山脊,则是中更新世当地永冻土退化时水循环的结果。然而,正如地球资源卫星图像所显示的那样,这些形态在上更新世和全新世发生了变化。
{"title":"Integrated Geophysical and Geomorphological Studies of Caves in Calcarenite Limestones (Jaskinia pod Świecami Cave, Poland)","authors":"Bernadetta Pasierb,&nbsp;Grzegorz Gajek,&nbsp;Jan Urban,&nbsp;Wiesław Nawrocki","doi":"10.1007/s10712-023-09821-9","DOIUrl":"10.1007/s10712-023-09821-9","url":null,"abstract":"<div><p>The occurrence of subsurface karst caves can cause the development of superficial depressions which, in turn, may pose a construction hazard. Identifying such a substratum requires integrated non-invasive measurement methods. The main objective of the study was to demonstrate the effectiveness of the non-invasive ERT, TLS, and GPR survey techniques in identifying the karst floor and determining the direction of discontinuities around the cave. The paper analyzes the limitations of the methods used in the study of heterogeneous media. These limitations are related to the methodology and measurement conditions, data processing, and interpretation in the context of the resolution and depth range. The study was conducted using the example of the Jaskinia pod Świecami cave, formed in the Sarmatianal calcarenites in Poland. The research confirmed its complex karst-anthropogenic genesis. The cave was formed as a result of the infiltration of rainwater and the dissolution of limestone by groundwater, while the paleokarst forms that are characteristic of it and of the surrounding caves and occur in their vicinity, i.e., narrow ridges called \"karst candles\", were formed as a result of water circulation during the local permafrost degradation in the middle Pleistocene. However, these forms were modified in the Upper Pleistocene and Holocene, as indicated by ERT images.</p></div>","PeriodicalId":49458,"journal":{"name":"Surveys in Geophysics","volume":"45 3","pages":"663 - 694"},"PeriodicalIF":4.9,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139644171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simultaneous Estimation of P- and S-Wave Velocities by Integrated Inversion of Guided-P and Surface Wave Dispersion Curves 通过综合反演导波和面波频散曲线同时估算 P 波和 S 波速度
IF 4.9 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2024-01-10 DOI: 10.1007/s10712-023-09814-8
Zhinong Wang, Chengyu Sun, Dunshi Wu

Compared with surface wave corresponding to the normal mode, which is widely studied, there is less research on guided-P wave corresponding to the leaking mode. Guided-P wave carries the dispersion information that can be used to construct the subsurface velocity structures. In this paper, to simultaneously estimate P-wave velocity (({{v}}_{{P}})) and S-wave velocity (({{v}}_{{S}})) structures, an integrated inversion method of guided-P and surface wave dispersion curves is proposed. Through the calculation of Jacobian matrix, the sensitivity of dispersion curves is quantitatively analyzed. It shows that the dispersion curves of guided-P and surface waves are, respectively, sensitive to the ({{v}}_{{P}}) and ({{v}}_{{S}}). Synthetic model tests demonstrate the proposed integrated inversion method can estimate the ({{v}}_{{P}}) and ({{v}}_{{S}}) models accurately and effectively identify low-velocity interlayers. The integrated inversion method is also applied to the field seismic data acquired for oil and gas prospecting. The pseudo-2D ({{v}}_{{P}}), ({{v}}_{{S}}) and Poisson’s ratio inversion results are of significance for near-surface geological interpretation. The comparison with the result of first-arrival traveltime tomography further demonstrates the accuracy and practicality of the proposed integrated inversion method. Not only in the field of exploration seismic, the guided-P wave dispersion information can also be extracted from the earthquake seismic, engineering seismic and ambient noise. The proposed inversion method can exploit previously neglected guided-P wave to characterize the subsurface ({{v}}_{{P}}) structures, showing broad and promising application prospects. This compensates for the inherent defect that the surface wave dispersion curve is mainly sensitive to the ({{v}}_{{S}}) structure.

与被广泛研究的法向模式面波相比,对泄漏模式导波的研究较少。导P波携带的频散信息可用于构建地下速度结构。为了同时估算 P 波速度(({{v}}_{P}}))和 S 波速度(({{v}}_{S}}))结构,本文提出了导波-P 波和面波频散曲线的综合反演方法。通过计算雅各布矩阵,定量分析了频散曲线的敏感性。结果表明,导波和面波的频散曲线分别对({{v}}_{P}})和({{v}}_{S}})敏感。合成模型试验表明,所提出的综合反演方法能够准确地估计({{v}}_{P}})和({{v}}_{S}})模型,并有效地识别低速夹层。综合反演方法还被应用于油气勘探采集的野外地震数据。伪二维 ({{v}}_{P}})、({{v}}_{S}})和泊松比反演结果对近地表地质解释具有重要意义。与第一到达旅行时间层析成像结果的对比进一步证明了所提出的综合反演方法的准确性和实用性。不仅在勘探地震领域,导波频散信息还可以从地震、工程地震和环境噪声中提取。所提出的反演方法可以利用以往被忽视的导P波来表征地下({{v}}_{{P}})结构,显示出广阔而有前景的应用前景。该方法弥补了地表波频散曲线主要对({{v}}_{P}})结构敏感的固有缺陷。
{"title":"Simultaneous Estimation of P- and S-Wave Velocities by Integrated Inversion of Guided-P and Surface Wave Dispersion Curves","authors":"Zhinong Wang,&nbsp;Chengyu Sun,&nbsp;Dunshi Wu","doi":"10.1007/s10712-023-09814-8","DOIUrl":"10.1007/s10712-023-09814-8","url":null,"abstract":"<div><p>Compared with surface wave corresponding to the normal mode, which is widely studied, there is less research on guided-P wave corresponding to the leaking mode. Guided-P wave carries the dispersion information that can be used to construct the subsurface velocity structures. In this paper, to simultaneously estimate P-wave velocity (<span>({{v}}_{{P}})</span>) and S-wave velocity (<span>({{v}}_{{S}})</span>) structures, an integrated inversion method of guided-P and surface wave dispersion curves is proposed. Through the calculation of Jacobian matrix, the sensitivity of dispersion curves is quantitatively analyzed. It shows that the dispersion curves of guided-P and surface waves are, respectively, sensitive to the <span>({{v}}_{{P}})</span> and <span>({{v}}_{{S}})</span>. Synthetic model tests demonstrate the proposed integrated inversion method can estimate the <span>({{v}}_{{P}})</span> and <span>({{v}}_{{S}})</span> models accurately and effectively identify low-velocity interlayers. The integrated inversion method is also applied to the field seismic data acquired for oil and gas prospecting. The pseudo-2D <span>({{v}}_{{P}})</span>, <span>({{v}}_{{S}})</span> and Poisson’s ratio inversion results are of significance for near-surface geological interpretation. The comparison with the result of first-arrival traveltime tomography further demonstrates the accuracy and practicality of the proposed integrated inversion method. Not only in the field of exploration seismic, the guided-P wave dispersion information can also be extracted from the earthquake seismic, engineering seismic and ambient noise. The proposed inversion method can exploit previously neglected guided-P wave to characterize the subsurface <span>({{v}}_{{P}})</span> structures, showing broad and promising application prospects. This compensates for the inherent defect that the surface wave dispersion curve is mainly sensitive to the <span>({{v}}_{{S}})</span> structure.</p></div>","PeriodicalId":49458,"journal":{"name":"Surveys in Geophysics","volume":"45 2","pages":"429 - 458"},"PeriodicalIF":4.9,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139407428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unravelling the Electrical Conductivity of Earth and Planets 揭开地球和行星导电性的神秘面纱
IF 4.9 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2024-01-06 DOI: 10.1007/s10712-023-09813-9
Alexander Grayver

This review presents the progress made in the last decade in the field of large-scale electromagnetic (EM) induction with natural sources, which fluctuate at periods from seconds to years and originate in oceans, ionosphere and magnetosphere. These mechanisms produce field variations that can be used to image subsurface electrical structure of Earth and planets across scales and depths from the shallow crust to the lower mantle. In the last decade, we have seen a substantial progress made in different areas related to methods, observations and 3-D numerical modelling of EM phenomena at crustal and mantle scales. Specifically, new methods for handling complex ionospheric and magnetospheric sources were proposed, accompanied by more efficient forward and inverse modelling tools that allowed us to combine several broadband sources and constrain electrical conductivity on multiple scales simultaneously. Magnetic signals due to oceanic tides were established as a new source to probe conductivity of the sub-oceanic upper mantle. Further, the launch of ESA Swarm satellites in 2013 and their successful ongoing operation have marked a new era in the field of large-scale EM induction, unlocking a set of new opportunities, but also posing new challenges. These developments were backed by new lab measurements of electrical conductivity for mantle minerals at temperatures and pressures that are getting closer to the relevant pressure and temperature conditions in the mantle, alleviating the need for inaccurate extrapolations. The latter enabled more plausible quantitative estimates of water content, melt fractions and temperature in the mantle. In parallel, crust and mantle conductivity models along with developed modelling techniques have become an integral part of geomagnetic field and geomagnetically induced currents (GICs) modelling workflows, establishing new inter-disciplinary knowledge domains.

本综述介绍了过去十年中在大尺度电磁感应领域取得的进展,这些电磁感应源来自海洋、电离层和磁层,波动周期从几秒到几年不等。这些机制产生的场变化可用于成像地球和行星从浅地壳到下地幔的不同尺度和深度的地下电结构。在过去十年中,我们看到在地壳和地幔尺度电磁现象的方法、观测和三维数值建模等不同领域取得了重大进展。具体地说,提出了处理复杂电离层和磁层源的新方法,同时还提出了更有效的正演和反演建模工具,使我们能够将多个宽带源结合起来,同时在多个尺度上对电导率进行约束。海洋潮汐产生的磁信号被确定为探测洋底上地幔电导率的新来源。此外,2013 年发射的欧空局 Swarm 卫星及其成功的持续运行标志着大规模电磁感应领域进入了一个新时代,开启了一系列新机遇,但也提出了新挑战。支持这些发展的是实验室对地幔矿物在温度和压力下的电导率进行的新测量,测量结果越来越接近地幔中的相关压力和温度条件,从而减少了不准确推断的必要性。后者能够对地幔中的含水量、熔体比例和温度进行更合理的定量估算。与此同时,地壳和地幔传导性模型以及开发的建模技术已成为地磁场和地磁诱导流(GICs)建模工作流程的组成部分,建立了新的跨学科知识领域。
{"title":"Unravelling the Electrical Conductivity of Earth and Planets","authors":"Alexander Grayver","doi":"10.1007/s10712-023-09813-9","DOIUrl":"10.1007/s10712-023-09813-9","url":null,"abstract":"<div><p>This review presents the progress made in the last decade in the field of large-scale electromagnetic (EM) induction with natural sources, which fluctuate at periods from seconds to years and originate in oceans, ionosphere and magnetosphere. These mechanisms produce field variations that can be used to image subsurface electrical structure of Earth and planets across scales and depths from the shallow crust to the lower mantle. In the last decade, we have seen a substantial progress made in different areas related to methods, observations and 3-D numerical modelling of EM phenomena at crustal and mantle scales. Specifically, new methods for handling complex ionospheric and magnetospheric sources were proposed, accompanied by more efficient forward and inverse modelling tools that allowed us to combine several broadband sources and constrain electrical conductivity on multiple scales simultaneously. Magnetic signals due to oceanic tides were established as a new source to probe conductivity of the sub-oceanic upper mantle. Further, the launch of ESA Swarm satellites in 2013 and their successful ongoing operation have marked a new era in the field of large-scale EM induction, unlocking a set of new opportunities, but also posing new challenges. These developments were backed by new lab measurements of electrical conductivity for mantle minerals at temperatures and pressures that are getting closer to the relevant pressure and temperature conditions in the mantle, alleviating the need for inaccurate extrapolations. The latter enabled more plausible quantitative estimates of water content, melt fractions and temperature in the mantle. In parallel, crust and mantle conductivity models along with developed modelling techniques have become an integral part of geomagnetic field and geomagnetically induced currents (GICs) modelling workflows, establishing new inter-disciplinary knowledge domains.</p></div>","PeriodicalId":49458,"journal":{"name":"Surveys in Geophysics","volume":"45 1","pages":"187 - 238"},"PeriodicalIF":4.9,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10712-023-09813-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139112122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Three-Dimensional Urban Subsurface Space Tomography with Dense Ambient Noise Seismic Array 利用密集环境噪声地震阵列进行三维城市地下空间断层扫描
IF 4.9 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2024-01-06 DOI: 10.1007/s10712-023-09819-3
Ruizhe Sun, Jing Li, Yingwei Yan, Hui Liu, Lige Bai, Yuqing Chen

Two-dimensional dense seismic ambient noise array techniques have been widely used to image and monitor subsurface structure characterization in complex urban environments. It does not have limitations in the layout under the limitation of urban space, which is more suitable for 3D S-velocity imaging. In traditional ambient seismic noise tomography, the narrowband filtering (NBF) method has many possible dispersion branches. Aliases would appear in the dispersive image, and the dispersion curve inversion also depends on the initial model. To obtain high-accuracy 3D S-velocity imaging in urban seismology, we developed a robust workflow of data processing and S-velocity tomography for 2D dense ambient noise arrays. Firstly, differing from the NBF method, we adopt the continuous wavelet transform (CWT) as an alternative method to measure the phase velocity from the interstation noise cross-correlation function (NCF) without 2π ambiguity. Then, we proposed the sequential dispersion curve inversion (DCI) strategy, which combines the Dix linear inversion and preconditioned fast descent (PFD) method to invert the S-velocity structure without prior information. Finally, the 3D S-velocity model is generated by the 3D spatial interpolation. The proposed workflow is applied to the 2D dense ambient seismic array dataset in Changchun City. The quality evaluation methods include residual iteration error, horizontal-to-vertical spectral ratio (HVSR) map, and electrical resistivity tomography (ERT). All tests indicate that the developed workflow provides a reliable 3D S-velocity model, which offers a reference for urban subsurface space exploration.

二维密集地震环境噪声阵列技术已被广泛应用于复杂城市环境下的地下结构特征成像和监测。二维密集地震环境噪声阵列技术在复杂的城市环境中被广泛应用,它不受城市空间布局的限制,更适用于三维 S-速度成像。在传统的环境地震噪声层析成像中,窄带滤波(NBF)方法有许多可能的频散分支。在频散图像中会出现别名,频散曲线反演也取决于初始模型。为了在城市地震学中获得高精度的三维 S-速度成像,我们为二维密集环境噪声阵列开发了一套强大的数据处理和 S-速度层析成像工作流程。首先,有别于 NBF 方法,我们采用连续小波变换(CWT)作为替代方法,从站间噪声交叉相关函数(NCF)中测量相位速度,且无 2π 模糊性。然后,我们提出了序列频散曲线反演(DCI)策略,该策略结合了 Dix 线性反演和预处理快速下降(PFD)方法,在没有先验信息的情况下反演 S-速度结构。最后,通过三维空间插值生成三维 S-速度模型。提出的工作流程应用于长春市的二维密集环境地震阵列数据集。质量评估方法包括残余迭代误差、水平垂直谱比(HVSR)图和电阻率层析(ERT)。所有测试表明,开发的工作流程提供了可靠的三维 S-速度模型,为城市地下空间探测提供了参考。
{"title":"Three-Dimensional Urban Subsurface Space Tomography with Dense Ambient Noise Seismic Array","authors":"Ruizhe Sun,&nbsp;Jing Li,&nbsp;Yingwei Yan,&nbsp;Hui Liu,&nbsp;Lige Bai,&nbsp;Yuqing Chen","doi":"10.1007/s10712-023-09819-3","DOIUrl":"10.1007/s10712-023-09819-3","url":null,"abstract":"<div><p>Two-dimensional dense seismic ambient noise array techniques have been widely used to image and monitor subsurface structure characterization in complex urban environments. It does not have limitations in the layout under the limitation of urban space, which is more suitable for 3D <i>S</i>-velocity imaging. In traditional ambient seismic noise tomography, the narrowband filtering (NBF) method has many possible dispersion branches. Aliases would appear in the dispersive image, and the dispersion curve inversion also depends on the initial model. To obtain high-accuracy 3D <i>S</i>-velocity imaging in urban seismology, we developed a robust workflow of data processing and <i>S</i>-velocity tomography for 2D dense ambient noise arrays. Firstly, differing from the NBF method, we adopt the continuous wavelet transform (CWT) as an alternative method to measure the phase velocity from the interstation noise cross-correlation function (NCF) without 2<i>π</i> ambiguity. Then, we proposed the sequential dispersion curve inversion (DCI) strategy, which combines the Dix linear inversion and preconditioned fast descent (PFD) method to invert the <i>S</i>-velocity structure without prior information. Finally, the 3D <i>S</i>-velocity model is generated by the 3D spatial interpolation. The proposed workflow is applied to the 2D dense ambient seismic array dataset in Changchun City. The quality evaluation methods include residual iteration error, horizontal-to-vertical spectral ratio (HVSR) map, and electrical resistivity tomography (ERT). All tests indicate that the developed workflow provides a reliable 3D <i>S</i>-velocity model, which offers a reference for urban subsurface space exploration.</p></div>","PeriodicalId":49458,"journal":{"name":"Surveys in Geophysics","volume":"45 3","pages":"819 - 843"},"PeriodicalIF":4.9,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10712-023-09819-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139112057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-Resolution Sonic Slowness Estimation Based on the Reconstruction of Neighboring Virtual Traces 基于邻近虚拟轨迹重构的高分辨率声速估计
IF 4.9 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2024-01-02 DOI: 10.1007/s10712-023-09820-w
Song Xu, Shun Li, Zhihui Zou

The estimation of elastic properties of thin-bed formations from sonic logging is challenging. Standard slowness processing of sonic logging waveforms typically yields an average slowness log profile over the span of the receiver array, obscuring thin-layer features smaller than the array aperture. In order to enhance vertical resolution of the slowness logs, the subarray processing techniques have been developed. However, for the subarrays with smaller aperture, the semblance from subarray waveforms becomes susceptible to noise, which results in a low signal-to-noise (S/N) ratio for the processing slowness logs. To overcome the above drawbacks, we propose a slowness estimation method with the enhanced resolution ranging from the conventional array aperture resolution to the inter-receiver spacing based on the reconstruction of neighboring virtual traces (RNVTs). The method utilizes super-virtual interferometry to reconstruct a large number of waveforms for slowness extraction using redundant information from overlapping receiver subarrays. We validate the feasibility and effectiveness of the proposed method using synthetic numerical experiments. By adding different levels of noise to synthetic data, we conclude that the new method has better noise robustness. Finally, we apply this method to field data, and the estimated high-resolution slowness logs show good agreement in interbedded sand-shale sequences. Both numerical tests and examples of field data show that, the slowness logs estimated by the new method can be obtained with a high resolution as well as with a high S/N ratio, providing an effective method for assessing slowness properties from a borehole.

摘要 从声波测井中估算薄层地层的弹性特性是一项挑战。声波测井波形的标准慢度处理通常会得到接收器阵列跨度上的平均慢度测井剖面,从而掩盖了小于阵列孔径的薄层特征。为了提高慢度记录的垂直分辨率,开发了子阵列处理技术。然而,对于孔径较小的子阵列,子阵列波形的形貌容易受到噪声的影响,从而导致处理慢度记录的信噪比(S/N)较低。为了克服上述缺点,我们提出了一种基于邻近虚拟轨迹(RNVT)重建的慢度估计方法,其分辨率从传统的阵列孔径分辨率到接收器间距都有所提高。该方法利用超虚拟干涉测量法,利用重叠接收机子阵列的冗余信息重建大量波形,以提取慢度。我们利用合成数值实验验证了所提方法的可行性和有效性。通过在合成数据中添加不同程度的噪声,我们得出结论,新方法具有更好的噪声鲁棒性。最后,我们将该方法应用于野外数据,估算出的高分辨率慢度测井在砂页岩互层序列中显示出良好的一致性。数值测试和现场数据实例都表明,用新方法估算的慢度测井可以获得高分辨率和高信噪比,为评估井眼慢度特性提供了一种有效的方法。
{"title":"High-Resolution Sonic Slowness Estimation Based on the Reconstruction of Neighboring Virtual Traces","authors":"Song Xu,&nbsp;Shun Li,&nbsp;Zhihui Zou","doi":"10.1007/s10712-023-09820-w","DOIUrl":"10.1007/s10712-023-09820-w","url":null,"abstract":"<div><p>The estimation of elastic properties of thin-bed formations from sonic logging is challenging. Standard slowness processing of sonic logging waveforms typically yields an average slowness log profile over the span of the receiver array, obscuring thin-layer features smaller than the array aperture. In order to enhance vertical resolution of the slowness logs, the subarray processing techniques have been developed. However, for the subarrays with smaller aperture, the semblance from subarray waveforms becomes susceptible to noise, which results in a low signal-to-noise (S/N) ratio for the processing slowness logs. To overcome the above drawbacks, we propose a slowness estimation method with the enhanced resolution ranging from the conventional array aperture resolution to the inter-receiver spacing based on the reconstruction of neighboring virtual traces (RNVTs). The method utilizes super-virtual interferometry to reconstruct a large number of waveforms for slowness extraction using redundant information from overlapping receiver subarrays. We validate the feasibility and effectiveness of the proposed method using synthetic numerical experiments. By adding different levels of noise to synthetic data, we conclude that the new method has better noise robustness. Finally, we apply this method to field data, and the estimated high-resolution slowness logs show good agreement in interbedded sand-shale sequences. Both numerical tests and examples of field data show that, the slowness logs estimated by the new method can be obtained with a high resolution as well as with a high S/N ratio, providing an effective method for assessing slowness properties from a borehole.</p></div>","PeriodicalId":49458,"journal":{"name":"Surveys in Geophysics","volume":"45 3","pages":"721 - 743"},"PeriodicalIF":4.9,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139076616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of Source Modelling and Poroelastic Models on Numerical Modelling of Unconsolidated Granular Media: Application at the Laboratory Scale 源建模和挤塑模型对非固结颗粒介质数值建模的影响:实验室规模的应用
IF 4.9 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-12-19 DOI: 10.1007/s10712-023-09812-w
K. Asfour, R. Martin, D. El Baz, L. Bodet, B. Plazolles

The near surface is characterized by using different numerical techniques, among them seismic techniques that are non-destructive. More particularly, for a better understanding of acoustic and seismic measurements in unconsolidated granular media that can constitute the near surface, many studies have been conducted in situ and also at the laboratory scale where theoretical models have been developed. In this article, we want to model such granular media that are difficult to characterize. At the laboratory scale, dry granular media can be modelled with a homogenized power-law elastic model that depends on depth. In this context, we validate numerically a similar power-law elastic model for such media by applying it to a homogenized elastic medium or to the solid frame of a poroelastic medium that consists of solid and air components. By comparing the response of both rheologies, we want to highlight what poroelastic media can bring to better reproduce the experimental data in the time and frequency domains. To achieve this objective, we revisit studies carried out on unconsolidated granular media at the laboratory scale and we compare different models with different rheologies (elastic or poroelastic), dimensions (2D or 3D), boundary conditions (perfectly matched layer/PML, or Dirichlet) and locations of the source (modelled as a vibratory stick or a point force) in order to reproduce the experimental data. We show here that a poroelastic model describes better the amplitudes of the seismograms. Furthermore, we study the sensitivity of the seismic data to the source location, which is crucial to improve the amplitude of the signals and the detection of the different seismic modes.

近地表的特征是利用不同的数值技术,其中包括非破坏性的地震技术。特别是,为了更好地理解构成近地表的未固结颗粒介质中的声学和地震测量,已经在现场和实验室尺度上进行了许多研究,并建立了理论模型。在本文中,我们希望对这种难以表征的颗粒介质进行建模。在实验室尺度上,干颗粒介质可以用一个取决于深度的均质幂律弹性模型来建模。在这种情况下,我们通过将类似的幂律弹性模型应用于均质化弹性介质或由固体和空气组成的孔弹性介质的固体框架,对此类介质的幂律弹性模型进行数值验证。通过比较这两种流变学的响应,我们希望强调孔弹性介质能在时域和频域更好地再现实验数据。为了实现这一目标,我们重温了在实验室尺度上对未固结颗粒介质进行的研究,并比较了不同流变(弹性或孔弹性)、尺寸(二维或三维)、边界条件(完全匹配层/PML 或 Dirichlet)和源位置(模拟为振动棒或点力)的不同模型,以重现实验数据。我们在此表明,孔弹性模型能更好地描述地震图的振幅。此外,我们还研究了地震数据对震源位置的敏感性,这对改善信号振幅和检测不同地震模式至关重要。
{"title":"Impact of Source Modelling and Poroelastic Models on Numerical Modelling of Unconsolidated Granular Media: Application at the Laboratory Scale","authors":"K. Asfour,&nbsp;R. Martin,&nbsp;D. El Baz,&nbsp;L. Bodet,&nbsp;B. Plazolles","doi":"10.1007/s10712-023-09812-w","DOIUrl":"10.1007/s10712-023-09812-w","url":null,"abstract":"<div><p>The near surface is characterized by using different numerical techniques, among them seismic techniques that are non-destructive. More particularly, for a better understanding of acoustic and seismic measurements in unconsolidated granular media that can constitute the near surface, many studies have been conducted in situ and also at the laboratory scale where theoretical models have been developed. In this article, we want to model such granular media that are difficult to characterize. At the laboratory scale, dry granular media can be modelled with a homogenized power-law elastic model that depends on depth. In this context, we validate numerically a similar power-law elastic model for such media by applying it to a homogenized elastic medium or to the solid frame of a poroelastic medium that consists of solid and air components. By comparing the response of both rheologies, we want to highlight what poroelastic media can bring to better reproduce the experimental data in the time and frequency domains. To achieve this objective, we revisit studies carried out on unconsolidated granular media at the laboratory scale and we compare different models with different rheologies (elastic or poroelastic), dimensions (2D or 3D), boundary conditions (perfectly matched layer/PML, or Dirichlet) and locations of the source (modelled as a vibratory stick or a point force) in order to reproduce the experimental data. We show here that a poroelastic model describes better the amplitudes of the seismograms. Furthermore, we study the sensitivity of the seismic data to the source location, which is crucial to improve the amplitude of the signals and the detection of the different seismic modes.</p></div>","PeriodicalId":49458,"journal":{"name":"Surveys in Geophysics","volume":"45 2","pages":"489 - 524"},"PeriodicalIF":4.9,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138740590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving the Retrieval of High-Frequency Surface Waves Using Convolution-Based Three-Station Interferometry for Dense Linear Arrays 利用基于卷积的密集线性阵列三站干涉测量改进高频表面波的检索
IF 4.9 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-12-09 DOI: 10.1007/s10712-023-09816-6
Bo Guan, Jianghai Xia, Ya Liu, Chaoqiang Xi, Binbin Mi, Hao Zhang, Jingyin Pang, Baiyang You

The retrieval of surface waves from ambient noise is important for delineating the solid earth’s near-surface structures, especially in urban environments. Seismic interferometry (SI) with linear arrays is becoming popular in urban areas with abundant anthropogenic noise. However, retrieving the noise correlation functions (NCFs) is usually challenging for a dense linear array under the demand of short-time recordings and the limited number of stations in urban environments. We comprehensively compare the SI and three-station interferometry, and the results show that the convolution-based three-station interferometry can accurately retrieve the NCFs using short-time recordings for dense linear arrays from traffic-induced noise. A synthetic example demonstrates the superiority of the convolution-based three-station interferometry over the traditional SI and the correlation-based three-station interferometry. Results from two field examples validate the convolution-based three-station interferometry for linear arrays deployed synchronously and asynchronously and confirm its advantage for multi-component data. We conclude that the convolution-based three-station interferometry performs better because it makes better use of linear arrays with short-time recordings and retrieves higher-quality NCFs.

从环境噪声中获取面波对于确定地球近地表结构非常重要,尤其是在城市环境中。采用线性阵列的地震干涉测量法(SI)在人为噪声较多的城市地区越来越受欢迎。然而,在城市环境中,由于短时间记录的要求和站点数量有限,检索噪声相关函数(NCF)对于密集线性阵列来说通常具有挑战性。我们对 SI 和三站干涉测量法进行了全面比较,结果表明基于卷积的三站干涉测量法可以利用短时记录从交通诱导噪声中准确检索密集线性阵列的 NCF。一个合成实例证明了基于卷积的三站干涉测量法优于传统的 SI 和基于相关的三站干涉测量法。两个现场示例的结果验证了基于卷积的三站干涉测量法适用于同步和异步部署的线性阵列,并证实了它在多分量数据方面的优势。我们的结论是,基于卷积的三站干涉测量法性能更好,因为它能更好地利用短时间记录的线性阵列,并检索到更高质量的 NCF。
{"title":"Improving the Retrieval of High-Frequency Surface Waves Using Convolution-Based Three-Station Interferometry for Dense Linear Arrays","authors":"Bo Guan,&nbsp;Jianghai Xia,&nbsp;Ya Liu,&nbsp;Chaoqiang Xi,&nbsp;Binbin Mi,&nbsp;Hao Zhang,&nbsp;Jingyin Pang,&nbsp;Baiyang You","doi":"10.1007/s10712-023-09816-6","DOIUrl":"10.1007/s10712-023-09816-6","url":null,"abstract":"<div><p>The retrieval of surface waves from ambient noise is important for delineating the solid earth’s near-surface structures, especially in urban environments. Seismic interferometry (SI) with linear arrays is becoming popular in urban areas with abundant anthropogenic noise. However, retrieving the noise correlation functions (NCFs) is usually challenging for a dense linear array under the demand of short-time recordings and the limited number of stations in urban environments. We comprehensively compare the SI and three-station interferometry, and the results show that the convolution-based three-station interferometry can accurately retrieve the NCFs using short-time recordings for dense linear arrays from traffic-induced noise. A synthetic example demonstrates the superiority of the convolution-based three-station interferometry over the traditional SI and the correlation-based three-station interferometry. Results from two field examples validate the convolution-based three-station interferometry for linear arrays deployed synchronously and asynchronously and confirm its advantage for multi-component data. We conclude that the convolution-based three-station interferometry performs better because it makes better use of linear arrays with short-time recordings and retrieves higher-quality NCFs.</p></div>","PeriodicalId":49458,"journal":{"name":"Surveys in Geophysics","volume":"45 2","pages":"459 - 487"},"PeriodicalIF":4.9,"publicationDate":"2023-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138559340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Guest Editorial: Special Issue on the 25th Electromagnetic Induction Workshop, Çeşme, Turkey 嘉宾评论:第25届电磁感应研讨会特刊,Çeşme,土耳其
IF 4.9 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-11-30 DOI: 10.1007/s10712-023-09817-5
Ahmet T. Başokur, Anne Neska
{"title":"Guest Editorial: Special Issue on the 25th Electromagnetic Induction Workshop, Çeşme, Turkey","authors":"Ahmet T. Başokur,&nbsp;Anne Neska","doi":"10.1007/s10712-023-09817-5","DOIUrl":"10.1007/s10712-023-09817-5","url":null,"abstract":"","PeriodicalId":49458,"journal":{"name":"Surveys in Geophysics","volume":"45 1","pages":"183 - 185"},"PeriodicalIF":4.9,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138468764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advancements in Controlled Source Electromagnetic Methods for Prospecting Unconventional Hydrocarbon Resources in China 中国非常规油气资源可控源电磁法勘探进展
IF 4.9 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-11-22 DOI: 10.1007/s10712-023-09808-6
Liangjun Yan

Globally, unconventional hydrocarbons, known for the symbiosis of their hydrocarbon source and reservoir, pose significant seismic exploration challenges due to their confined target regions, extensive burial depth, minimal acoustic impedance variation, marked heterogeneity, and strong anisotropy. Over the past decade, electromagnetic (EM) exploration has evolved markedly, improving resolution and reliability, thus becoming indispensable in unconventional hydrocarbon exploration. Focusing on China's application of the controlled source electromagnetic method (CSEM), this review examines the geological and electrical attributes of these reservoirs, notably the low resistivity, high polarization and strong electrical anisotropy of shale gas reservoirs. Despite the demonstrated positive correlation between induced polarization (IP) parameters and reservoir parameters, current methodologies emphasize the IP effect, inadvertently neglecting electrical anisotropy, which affects data precision. Moreover, single-source CSEM methodologies limit the observational components, acquisition density, and exploration area, impacting the accuracy and efficacy of data interpretation. Recently developed CSEM techniques in China, namely wide-frequency electromagnetic method (WFEM), time–frequency electromagnetic method (TFEM), long offset transient electromagnetic method (LOTEM), and wireless electromagnetic method (WEM), harness high-power pseudo-random binary sequence (PRBS) waveforms, reference observation and processing technology, hybrid inversion, and enhancing operational efficiency and adaptability despite the pressing need for multi-functional software for data acquisition. Case studies detail these methods' applications in shale gas sweet spot detection and continuous hydraulic fracturing monitoring, highlighting the immense potential of EM methods in unconventional hydrocarbon sweet spot detection and total organic content (TOC) predication. However, challenges persist in suppressing EM noise, streamlining 3D inversion processes, and improving the detection and evaluation of sweet spots.

在全球范围内,非常规油气以其烃源和储层共生而闻名,由于其目标区域有限、埋藏深度广、声阻抗变化小、非均质性明显、各向异性强等特点,给地震勘探带来了巨大挑战。在过去的十年中,电磁(EM)勘探有了显著的发展,提高了分辨率和可靠性,因此在非常规油气勘探中不可或缺。本文以可控源电磁法(CSEM)在中国的应用为重点,分析了页岩气储层的地质和电性属性,特别是页岩气储层的低电阻率、高极化和强电性各向异性特征。尽管诱导极化(IP)参数与储层参数之间存在正相关关系,但目前的方法强调的是IP效应,而忽略了影响数据精度的电性各向异性。此外,单源CSEM方法限制了观测成分、采集密度和勘探面积,影响了数据解释的准确性和有效性。国内近年来发展起来的CSEM技术,即宽频电磁法(WFEM)、时频电磁法(TFEM)、长偏移瞬变电磁法(LOTEM)和无线电磁法(WEM),利用大功率伪随机二值序列(PRBS)波形、参考观测和处理技术、混合反演、提高操作效率和适应性,尽管迫切需要多功能的数据采集软件。案例研究详细介绍了这些方法在页岩气甜点检测和连续水力压裂监测中的应用,强调了EM方法在非常规油气甜点检测和总有机含量(TOC)预测方面的巨大潜力。然而,在抑制电磁噪声、简化三维反演过程以及改进甜点的检测和评估方面仍然存在挑战。
{"title":"Advancements in Controlled Source Electromagnetic Methods for Prospecting Unconventional Hydrocarbon Resources in China","authors":"Liangjun Yan","doi":"10.1007/s10712-023-09808-6","DOIUrl":"10.1007/s10712-023-09808-6","url":null,"abstract":"<div><p>Globally, unconventional hydrocarbons, known for the symbiosis of their hydrocarbon source and reservoir, pose significant seismic exploration challenges due to their confined target regions, extensive burial depth, minimal acoustic impedance variation, marked heterogeneity, and strong anisotropy. Over the past decade, electromagnetic (EM) exploration has evolved markedly, improving resolution and reliability, thus becoming indispensable in unconventional hydrocarbon exploration. Focusing on China's application of the controlled source electromagnetic method (CSEM), this review examines the geological and electrical attributes of these reservoirs, notably the low resistivity, high polarization and strong electrical anisotropy of shale gas reservoirs. Despite the demonstrated positive correlation between induced polarization (IP) parameters and reservoir parameters, current methodologies emphasize the IP effect, inadvertently neglecting electrical anisotropy, which affects data precision. Moreover, single-source CSEM methodologies limit the observational components, acquisition density, and exploration area, impacting the accuracy and efficacy of data interpretation. Recently developed CSEM techniques in China, namely wide-frequency electromagnetic method (WFEM), time–frequency electromagnetic method (TFEM), long offset transient electromagnetic method (LOTEM), and wireless electromagnetic method (WEM), harness high-power pseudo-random binary sequence (PRBS) waveforms, reference observation and processing technology, hybrid inversion, and enhancing operational efficiency and adaptability despite the pressing need for multi-functional software for data acquisition. Case studies detail these methods' applications in shale gas sweet spot detection and continuous hydraulic fracturing monitoring, highlighting the immense potential of EM methods in unconventional hydrocarbon sweet spot detection and total organic content (TOC) predication. However, challenges persist in suppressing EM noise, streamlining 3D inversion processes, and improving the detection and evaluation of sweet spots.</p></div>","PeriodicalId":49458,"journal":{"name":"Surveys in Geophysics","volume":"45 1","pages":"239 - 276"},"PeriodicalIF":4.9,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10712-023-09808-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138293591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction: Ocean Biology Studied from Space 更正:从太空研究海洋生物学
IF 4.9 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Pub Date : 2023-11-21 DOI: 10.1007/s10712-023-09815-7
Shubha Sathyendranath, Robert J. W. Brewin, Stefano Ciavatta, Tom Jackson, Gemma Kulk, Bror Jönsson, Victor Martinez Vicente, Trevor Platt
{"title":"Correction: Ocean Biology Studied from Space","authors":"Shubha Sathyendranath,&nbsp;Robert J. W. Brewin,&nbsp;Stefano Ciavatta,&nbsp;Tom Jackson,&nbsp;Gemma Kulk,&nbsp;Bror Jönsson,&nbsp;Victor Martinez Vicente,&nbsp;Trevor Platt","doi":"10.1007/s10712-023-09815-7","DOIUrl":"10.1007/s10712-023-09815-7","url":null,"abstract":"","PeriodicalId":49458,"journal":{"name":"Surveys in Geophysics","volume":"45 2","pages":"603 - 604"},"PeriodicalIF":4.9,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10712-023-09815-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Surveys in Geophysics
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1