Earth and Planetary Science Letters最新文献

{"title":"Identifying large vulnerable water reservoirs using passive seismic monitoring","authors":"R. Kramer ,&nbsp;Y. Lu ,&nbsp;Q.-Y. Wang ,&nbsp;S. Serafin ,&nbsp;A. Ceppi ,&nbsp;G. Bokelmann","doi":"10.1016/j.epsl.2025.119223","DOIUrl":"10.1016/j.epsl.2025.119223","url":null,"abstract":"<div><div>Seismic waves capture important insights into subsurface behavior. We introduce an adapted coda-wave interferometry approach to monitor the spatial variability of semi-daily periodic seismic velocity changes on a regional scale, applied to data collected across South and Central Europe. Our results reveal a broad spatial correlation between seismic velocity changes and air pressure fluctuations, suggesting that air pressure is the dominant driving force. Specifically, air pressure fluctuations modulate saturation levels within the capillary zone through the dynamic interplay between fluid and gaseous phases, producing significant seismic velocity changes. The mechanism explains the large variations observed in regions with high connectivity between the surface and saturated zone. We associate this enhanced interaction with the high vulnerability of shallow water resources. We propose inspecting semi-daily periodic seismic velocity changes as a new tool for gaining a regional view of water reservoir vulnerability.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"653 ","pages":"Article 119223"},"PeriodicalIF":4.8,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143313715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of mantle inheritance and refertilization during breakup at magma-poor rifted margins: What can we learn from the SW-Australia margin?","authors":"Mélanie Ballay,&nbsp;Marc Ulrich,&nbsp;Gianreto Manatschal","doi":"10.1016/j.epsl.2025.119212","DOIUrl":"10.1016/j.epsl.2025.119212","url":null,"abstract":"<div><div>The study of mantle-melt interactions at magma-poor rifted margins, accounting for about half of the world margins, is so far limited by the access to samples. Present concepts are therefore mainly based on studies of the Western Tethys and southern North Atlantic domain, and it remains unclear if they are applicable to other magma-poor rifted margins. Here, we present a study of well-preserved peridotites dredged along the southwestern Australian margin (Diamantina Zone). Our petrological data show that two types of peridotites occur: spinel lherzolite, which represents the inherited subcontinental mantle (SCLM) before the separation of Australia and Antarctica, and plagioclase peridotite formed by syn-rift melt entrapment at low pressure in the plagioclase stability field during mantle exhumation. The observed mantle types as well as the mantle-melt processes identified in the Diamantina peridotites are very similar to those documented in the Alpine-Apennine and Iberia margins. Hence, the Alpine/Iberia model of magma-poor rifted margins may be globally applicable and does not depend on the SCLM inheritance. Remnants of mantle inheritance may be preserved in the refertilized mantle, suggesting a progressive transition from an inherited to a refertilized mantle during breakup. Finally, this study highlights the role of inheritance and refertilization as the main features controlling final rifting and breakup at magma-poor rifted margins.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"653 ","pages":"Article 119212"},"PeriodicalIF":4.8,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143313718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanism of shallow slow slip events in the Nankai Trough: Insights from laboratory friction experiments and numerical modeling","authors":"Junli Zhang,&nbsp;Matt J. Ikari","doi":"10.1016/j.epsl.2025.119216","DOIUrl":"10.1016/j.epsl.2025.119216","url":null,"abstract":"<div><div>Shallow slow slip events (SSEs) have attracted considerable attention due to their mutual interaction with earthquake processes, and are known to occur in the Nankai Trough, southwest Japan. To examine their underlying mechanisms, we conducted velocity-stepping friction experiments on intact core samples retrieved from IODP Site C0023 at the toe of Nankai accretionary prism and performed numerical modeling based on rate-and-state friction (RSF) laws. Our measurements show that fault zone samples transition from velocity weakening to velocity strengthening as slip velocities increase, and that some RSF parameters show a dependence on sliding velocity. Numerical models using velocity-dependent RSF parameters, constrained by our experimental data, successfully replicate SSEs comparable to those observed in the Nankai Trough, whereas models based on non-transitional frictional behavior (constant RSF parameters) or near-neutral stability (constant RSF parameters with extremely small velocity weakening) cannot. We propose that the transitional frictional behavior with increasing slip velocity is a key mechanism of shallow SSEs in this region. Furthermore, our findings document a weak thrust fault with potentially unstable slip behavior.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"653 ","pages":"Article 119216"},"PeriodicalIF":4.8,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143313716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response to comment by Cisneros et al. (2024)","authors":"Brad S. Singer ,&nbsp;Alec Baudry ,&nbsp;Brenhin Keller ,&nbsp;Brian R. Jicha ,&nbsp;Christie Jilly-Rehak ,&nbsp;Jorge A. Vazquez","doi":"10.1016/j.epsl.2025.119215","DOIUrl":"10.1016/j.epsl.2025.119215","url":null,"abstract":"","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"653 ","pages":"Article 119215"},"PeriodicalIF":4.8,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143313933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Global comparative basin hypsometric analysis of Earth and Mars: Implications for early Mars climate","authors":"J. Fang ,&nbsp;W. Luo ,&nbsp;A.D. Howard ,&nbsp;R.A. Craddock ,&nbsp;E.A. Oliveira ,&nbsp;R.S. Pires","doi":"10.1016/j.epsl.2025.119226","DOIUrl":"10.1016/j.epsl.2025.119226","url":null,"abstract":"<div><div>While there is a consensus that water played at least some role in the formation of various Martian landforms, including valley networks (VNs), the specific mechanisms and climate conditions are still debated. Basin hypsometric curves, reflecting elevation distributions, offer insights into past processes and climates. Our study presents a global-scale comparison of basin hypsometry on Mars, Earth, the Moon, artificial fractal surfaces, and computer simulated landforms. Results indicate Martian VN formation likely occurred under a climate more arid than hyper-arid Earth, or under more humid periods that were short-lived. Differences in hypsometric attributes between Mars and the Moon suggest VN formation on Mars involved precipitation-driven water flow. Additionally, impact cratering significantly influenced Martian surface conditions, potentially disrupting fluvial erosion processes. This comparative analysis sheds light on the complex interplay of climatic factors and geological processes in Martian landscape evolution.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"653 ","pages":"Article 119226"},"PeriodicalIF":4.8,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143313717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uncovering the xenon isotope composition of continental rift magmas: Insight from analysis of geothermal gases at Homa Hills, Kenya","authors":"B. Marty ,&nbsp;D. Contamine ,&nbsp;D.V. Bekaert ,&nbsp;A. Lastes ,&nbsp;R. Pik ,&nbsp;J. Labidi ,&nbsp;E.D. Young ,&nbsp;M.W. Broadley ,&nbsp;P.H. Barry ,&nbsp;D.J. Byrne ,&nbsp;A.M. Seltzer","doi":"10.1016/j.epsl.2025.119224","DOIUrl":"10.1016/j.epsl.2025.119224","url":null,"abstract":"<div><div>We investigated geothermal gases from Homa Hills, a carbonatitic complex situated along an adjacent branch of the Kenyan rift system, using neon, argon, krypton, xenon and nitrogen isotopes. Large quantities of gas were sampled in Giggenbach-type bottles (Giggenbach, 1975) and analyzed by dynamic mass spectrometry to resolve isotopic variations at high precision (0.01-0.1‰; Seltzer and Bekaert, 2022; Bekaert et al., 2023; 2024). Neon and nitrogen isotope compositions are consistent with parental magmas being derived from the convecting mantle. Xenon isotopic data present ubiquitous enrichments (relative to air) of ¹²⁹Xe from the decay of extinct ¹²⁹I (T_1/2 = 15.7 Myr) and ^131-136Xe_f from fissions of ²³⁸U (T_1/2 = 4.468 Myr) and/or ²⁴⁴Pu (T_1/2 = 82 Myr). We also find slight excesses of ¹²⁸Xe (relative to ¹³⁰Xe and air), which could be due to subsurface isotopic fractionation during e.g., diffusive transport fractionation (DTF) and gravitational settling. However, the ¹²⁸Xe excesses are not accompanied by correlated Kr isotope excesses and plot off the empirical fractionation line defined from several other locations worldwide (Bekaert et al., 2023). Instead, a detailed isotope deconvolution suggests the occurrence of either chondritic Xe (with mantle ¹³⁰Xe consisting of up to 22 % of chondritic ¹³⁰Xe) or recycled Xe from the Archean atmosphere could explain the observed Xe isotope signatures. The latter possibility would have profound implications for models of mantle-surface exchange throughout Earth history.</div><div>The fission spectra indicate a predominantly ²³⁸U origin for fissiogenic Xe, with contribution of ²⁴⁴Pu-derived Xe being negligible within uncertainties, implying extensive mantle degassing during the Hadean and Archean eons. The ¹²⁹Xe*/¹³⁶Xe* ratio (where * indicates non-atmospheric excesses of Xe isotopes) of Homa Hills samples correlates with other tracers of mantle/crust contributions such as He, Ar and N isotopes. Variations in ¹²⁹Xe*/¹³⁶Xe* among the different gases sampled at Homa Hills is mainly the result of contribution from fissiogenic Xe produced in uranium-rich crustal material. Therefore, this ratio may constitute a robust tracer of mantle-crust interactions. Given available high precision data (Bekaert et al., 2023; 2024; this work) together with mantle-derived rock data, ¹²⁹Xe*/¹³⁶Xe* appears homogenous in the convecting mantle, and comparable to values observed at mantle plumes. Such homogeneity is in sharp contrast with light noble gas systematics and may call for whole mantle convection and a core origin for He and Ne..</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"653 ","pages":"Article 119224"},"PeriodicalIF":4.8,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143313719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Terrestrial ecosystem response to Early Cretaceous global environmental change: A calibrated, high-resolution Aptian record from Northeast China","authors":"Ming-Dao Sun ,&nbsp;Qin Lin ,&nbsp;Jahandar Ramezani ,&nbsp;Jiang-Si Liu ,&nbsp;Zheng-An Lu ,&nbsp;Han-Qing Yang ,&nbsp;Jiang-Hao Bai ,&nbsp;Shi-Xi Cai ,&nbsp;Jun-Cai Chen ,&nbsp;Xuan-Yu Chen ,&nbsp;Hao Cui ,&nbsp;Guang-Chao Deng ,&nbsp;Hai-Feng Gai ,&nbsp;Hai-Tao Gao ,&nbsp;Jun Guo ,&nbsp;Hao Guo ,&nbsp;Lu-Bing Hong ,&nbsp;Yong-Sheng Hou ,&nbsp;Yuan-Yuan Hua ,&nbsp;Long Huang ,&nbsp;Yi-Gang Xu","doi":"10.1016/j.epsl.2025.119206","DOIUrl":"10.1016/j.epsl.2025.119206","url":null,"abstract":"<div><div>Extensive studies of Aptian oceanic anoxic events and carbon cycle perturbations have significantly advanced our understanding of marine responses to global climate change. However, further exploration of possible volcanism–climate–environment linkages is hindered by the scarcity of continuous, well-documented terrestrial records. In an attempt to address this gap, the Yanshan Scientific Drilling Project extracted a 1497.5 m core from the shale-dominated, lacustrine, Jiufotang Formation in the Kazuo Basin of Northeast China. High-precision U-Pb geochronology of two interlayered tuffs yielded depositional ages of 121.05 ± 0.32 Ma and 117.359 ± 0.031 Ma, and a Bayesian age-depth model for the lower half of the formation. An astrochronological model based on δ¹³C_org and major element chemostratigraphy has suggested a duration of 9.03–9.14 Ma for the entire core, from 121.05 to 121.30 to 111.91–112.20 Ma. A 75.2 m core interval with unequivocal correlation to the oceanic anoxic event (OAE) 1a was identified by carbon isotope stratigraphy, which has a calibrated onset at 120.2 Ma and a total duration of ca. 450 kyr. Our results highlight the potential of lacustrine strata in recording at high-resolution the marine-correlated carbon cycle changes and in deciphering the drivers and mechanisms of climate change across the marine and terrestrial realms.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"653 ","pages":"Article 119206"},"PeriodicalIF":4.8,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143355411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Record of de-serpentinization and re-serpentinization of an exhumed slab sliver: Implications for fluid circulation in subduction zones","authors":"Damián Donoso-Tapia ,&nbsp;Kennet E. Flores ,&nbsp;Celine Martin ,&nbsp;Sarah Hull ,&nbsp;David Hernández-Uribe ,&nbsp;Esteban Gazel","doi":"10.1016/j.epsl.2025.119213","DOIUrl":"10.1016/j.epsl.2025.119213","url":null,"abstract":"<div><div>Fluid release associated with serpentinite dehydration (de-serpentinization) during subduction plays a key role in fundamental geological processes such as element transport and recycling, seismicity, and arc magmatism. Although the importance of these fluids is well-known, evidence of de-serpentinization remains scarce in the rock record. Here, we investigated the effects of de-serpentinization and fluid circulation in exhumed metaperidotites from the Raspas Complex (Ecuador). This Early Cretaceous complex records warm subduction (∼13.5 °C/km) and has been hypothesized to represent a coherent slab sliver that preserves the mantle-crust contact (moho) between eclogite-facies metaperidotites and the corresponding crustal section. Petrological observations reveal that titanian-clinohumite-bearing metadunites and banded metaperidotites underwent de-serpentinization after reaching peak pressure–temperatures (<em>P–T</em>) of ∼1.3–1.6 GPa and 620–650 °C. The peak paragenesis is partially obscured by a strong retrograde overprint, driven by crust-derived metamorphic fluids (δ¹¹B ∼ -6 to +8 ‰) that infiltrated at varying fluid/rock ratios, triggering the re-serpentinization of metaperidotites during exhumation (<em>P</em> &lt; 1.3 GPa and 320–400 °C). Thermodynamic forward modeling reveals that fluid release in the Raspas paleo-subduction zone is controlled by brucite breakdown and de-serpentinization, which occur at depths of 25–30 km and ∼50 km, respectively, accounting for a total of up to 10 wt. % H₂O of water stored in the rock. Comparatively, dehydration of the crustal section, albeit a minor component, promotes enhanced fluid circulation between 25 and 45 km. During exhumation, circulating crust-derived metamorphic fluids heavily metasomatized the ascending slab sliver and effectively modified its geochemical signature. The depth range of the dehydration reactions overlap the depth of non-volcanic tremors and slow-slip events in warm, active subduction zones worldwide (25–65 km). Thus, the Raspas Complex offers an <em>in-situ</em> window into the fluids responsible for triggering these seismic events.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"653 ","pages":"Article 119213"},"PeriodicalIF":4.8,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143314354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comment on “A Bayesian age from dispersed plagioclase and zircon dates in the Los Chocoyos ash, Central America” by Baudry et al. (2024)","authors":"A. Cisneros de León ,&nbsp;A.K. Schmitt ,&nbsp;T. Mittal ,&nbsp;M. Danišík ,&nbsp;S. de Silva ,&nbsp;S. Kutterolf ,&nbsp;J.C. Schindlbeck-Belo ,&nbsp;S. Self","doi":"10.1016/j.epsl.2025.119214","DOIUrl":"10.1016/j.epsl.2025.119214","url":null,"abstract":"","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"653 ","pages":"Article 119214"},"PeriodicalIF":4.8,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143313932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Meteoritic and asteroidal amino acid heterogeneity: Implications for planetesimal alteration conditions and sample return missions","authors":"Christian Potiszil,&nbsp;Tsutomu Ota,&nbsp;Masahiro Yamanaka,&nbsp;Katsura Kobayashi,&nbsp;Ryoji Tanaka,&nbsp;Eizo Nakamura","doi":"10.1016/j.epsl.2025.119205","DOIUrl":"10.1016/j.epsl.2025.119205","url":null,"abstract":"<div><div>Carbonaceous chondrites (CC) and asteroid return samples contain amino acids (AA), which are essential for an origin of life on the early Earth and can provide important information concerning planetesimal alteration processes. While many studies have investigated AA from CC, separate studies have often found differing abundances for the same meteorite. Accordingly, analytical bias, differing terrestrial contamination levels and intrinsic sample heterogeneity have been proposed as potential reasons. However, current analytical techniques allow for the analysis of several mg-sized samples and can thus enable an investigation of AA heterogeneity within single meteorite specimens. Here, such an analytical technique is applied to characterise the AA in triplicate aliquots of three CCs. The results indicate that CCs are heterogenous in terms of their AA at the mm-scale. Furthermore, the results help to further constrain the effects of planetesimal alteration on organic matter and the requirements of future sample return missions that aim to obtain organic-bearing extraterrestrial materials.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"653 ","pages":"Article 119205"},"PeriodicalIF":4.8,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143313285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}