Pub Date : 2024-02-06DOI: 10.1134/s0031030123100039
A. V. Mazaev
Abstract
Three species of the genus Arceodomus (A. praepermica (Fredericks, 1915), A. colvae (Fredericks, 1915), and A. fredericksi sp. nov.) described from the Asselian and Sakmarian carbonates of the Shakhtau reef massif (Southern Cis-Urals). The architecture of complex, at least two-layered shells is discussed in detailed and refined and their functional morphology is analyzed. Muscle scars of Arceodomus are described and their interpretation are proposed. A new family Arceodomidae fam. nov. is proposed in the order Conocardiida for the placement of the genus Arceodomus based on the combination of several morphological characters.
摘要描述了产于Shakhtau珊瑚礁群（南西乌拉尔山脉）的阿塞勒和萨克玛碳酸盐岩中的三个Arceodomus属物种（A. praepermica (Fredericks, 1915), A. colvae (Fredericks, 1915), and A. fredericksi sp. nov.）。详细讨论了复杂的至少两层贝壳的结构，并对其功能形态进行了分析。此外，还描述了笛鲷的肌肉疤痕，并提出了对其的解释。根据几个形态特征的组合，提出了一个新科 Arceodomidae fam.
{"title":"Taxonomical Diversity and Morphology of Rostroconch Shells of the Family Arceodomidae fam. nov. from the Early Permian Shakhtau Reef Massif (Mollusca; Southern Cis-Urals)","authors":"A. V. Mazaev","doi":"10.1134/s0031030123100039","DOIUrl":"https://doi.org/10.1134/s0031030123100039","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Three species of the genus <i>Arceodomus</i> (<i>A. praepermica</i> (Fredericks, 1915), <i>A. colvae</i> (Fredericks, 1915), and <i>A. fredericksi</i> sp. nov.) described from the Asselian and Sakmarian carbonates of the Shakhtau reef massif (Southern Cis-Urals). The architecture of complex, at least two-layered shells is discussed in detailed and refined and their functional morphology is analyzed. Muscle scars of <i>Arceodomus</i> are described and their interpretation are proposed. A new family Arceodomidae fam. nov. is proposed in the order Conocardiida for the placement of the genus <i>Arceodomus</i> based on the combination of several morphological characters.</p>","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-06DOI: 10.1134/s003103012309006x
E. S. Kazantseva
Abstract
This paper presents the results of a study of rugose corals from the Ordovician and Silurian of Estonia and the Carboniferous of the Moscow region, and describes their taxonomy in detail. The sections from which the studied material was collected are also described. Morphogenetic characters of the genera and species studied are analyzed based on the available material. New methods of studying this fossil group are proposed. The issue of corallite mutual growth described on the studied material was determined, the main features of rugosan growth during joint settlement, regeneration and astogeny were identified.
{"title":"Co-Growth in Rugosa: Types, Morphology, Special Features and Origin","authors":"E. S. Kazantseva","doi":"10.1134/s003103012309006x","DOIUrl":"https://doi.org/10.1134/s003103012309006x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This paper presents the results of a study of rugose corals from the Ordovician and Silurian of Estonia and the Carboniferous of the Moscow region, and describes their taxonomy in detail. The sections from which the studied material was collected are also described. Morphogenetic characters of the genera and species studied are analyzed based on the available material. New methods of studying this fossil group are proposed. The issue of corallite mutual growth described on the studied material was determined, the main features of rugosan growth during joint settlement, regeneration and astogeny were identified.</p>","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":"5 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-06DOI: 10.1134/s0031030123080038
A. S. Felker
Abstract
A new classification system for Protozygoptera is proposed. It is based on mass material from the Isady, Chekarda and Soyana localities. The new system is based on a set of wing venation characters. The hypothesis on the division of Protozygoptera based on their body structures is supplemented and confirmed (Nel et al., 2012). A three-segmented tarsal structure has been established for the archizygopteran family Kennedyidae. The infraorder Permagrionomorpha infraordo nov. is established. An additional character has been proposed to separate archizygopterans and permagrionomorphs based on the structure and morphology of the thorax. Lodeviidae is synonymized with Permagrionidae (junior synonym). Two new families, four new genera and 14 new species are described. A new family Progoneuridae fam. nov. is described based on a significant reduction in the wing longitudinal and transverse venation. It includes the genera Progoneura Carpenter, 1931; Azaroneura Nel et al., 2012; Progophlebia Felker, 2021, and Issadoneura gen. nov. (with a new species Issadoneura marilevorum gen. et sp. nov.). Based on re-examination of the type material from Chekarda, the genus Engellestes Nel et al., 2012 is assigned to a new family Engellestidae fam. nov. The following voltzialestids are described from the Upper Permian of the Vologda Region: Prototerskeja dubia gen. et sp. nov., Permostictaelegans gen. et. sp. nov., and Permostictaparva gen. et sp. nov. The diagnosis of the family Voltzialestidae is changed because of the inclusion of new genera. The genus Sushkinia Martynov, 1930 is transferred to Permagrionidae. The following permagrionids are described: Permagrion sharovi sp. nov, Permolestes obscurus sp. nov., P. vjatkensis sp. nov., Salagoulestesmartynovi sp. nov., Solikamptilon aequus sp. nov., Sushkinia angulata sp. nov., Triadolestes sakmarensis gen. et sp. nov., and T. mutovkensis gen. et sp. nov. The new material from Isady and Kargala suggests closer relationships of the Permian Permagrionomorpha and Triassic Triadophlebiomorpha. In the family Kennedyidae, Kennedya sylvensis sp. nov. and K. volatica sp. nov. are described from Chekarda, and K. ivensis Nel et al., 2012 is redescribed from Soyana.
{"title":"New Taxa of Damselflies (Protozygoptera) from the Permian of the East European Platform","authors":"A. S. Felker","doi":"10.1134/s0031030123080038","DOIUrl":"https://doi.org/10.1134/s0031030123080038","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A new classification system for Protozygoptera is proposed. It is based on mass material from the Isady, Chekarda and Soyana localities. The new system is based on a set of wing venation characters. The hypothesis on the division of Protozygoptera based on their body structures is supplemented and confirmed (Nel et al., 2012). A three-segmented tarsal structure has been established for the archizygopteran family Kennedyidae. The infraorder Permagrionomorpha infraordo nov. is established. An additional character has been proposed to separate archizygopterans and permagrionomorphs based on the structure and morphology of the thorax. Lodeviidae is synonymized with Permagrionidae (junior synonym). Two new families, four new genera and 14 new species are described. A new family Progoneuridae fam. nov. is described based on a significant reduction in the wing longitudinal and transverse venation. It includes the genera <i>Progoneura</i> Carpenter, 1931; <i>Azaroneura</i> Nel et al., 2012; <i>Progophlebia</i> Felker, 2021, and <i>Issadoneura</i> gen. nov. (with a new species <i>Issadoneura marilevorum</i> gen. et sp. nov.). Based on re-examination of the type material from Chekarda, the genus <i>Engellestes</i> Nel et al., 2012 is assigned to a new family Engellestidae fam. nov. The following voltzialestids are described from the Upper Permian of the Vologda Region: <i>Prototerskeja dubia</i> gen. et sp. nov., <i>Permosticta</i> <i>elegans</i> gen. et. sp. nov., and <i>Permosticta</i> <i>parva</i> gen. et sp. nov. The diagnosis of the family Voltzialestidae is changed because of the inclusion of new genera. The genus <i>Sushkinia</i> Martynov, 1930 is transferred to Permagrionidae. The following permagrionids are described: <i>Permagrion sharovi</i> sp. nov, <i>Permolestes obscurus</i> sp. nov.<i>, P. vjatkensis</i> sp. nov., <i>Salagoulestes</i> <i>martynovi</i> sp. nov., <i>Solikamptilon aequus</i> sp. nov., <i>Sushkinia angulata</i> sp. nov., <i>Triadolestes sakmarensis</i> gen. et sp. nov., and <i>T. mutovkensis</i> gen. et sp. nov. The new material from Isady and Kargala suggests closer relationships of the Permian Permagrionomorpha and Triassic Triadophlebiomorpha. In the family Kennedyidae, <i>Kennedya sylvensis</i> sp. nov. and <i>K. volatica</i> sp. nov. are described from Chekarda, and <i>K. ivensis</i> Nel et al., 2012 is redescribed from Soyana.</p>","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":"27 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-06DOI: 10.1134/s0031030123090058
E. S. Kazantseva
{"title":"CHAPTER 4. TYPES OF RELATIONSHIPS BETWEEN CORALLITES","authors":"E. S. Kazantseva","doi":"10.1134/s0031030123090058","DOIUrl":"https://doi.org/10.1134/s0031030123090058","url":null,"abstract":"","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":"80 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1134/s0031030124600045
Abstract
In the early Precambrian, microorganisms, bacteria, possibly cyanobacteria, and even unicellular eukaryotes accompanied the formation of weathering crusts, i.e., the crusts were initially formed with the participation of bacteria. Findings of fossil microorganisms in ancient weathering crusts are important because they suggest that the land was already inhabited at such a distant time. Modern bacterial-paleontological research has changed our understanding of the earliest stages of the evolution of life on Earth.
{"title":"Chapter 4. Early Pecambrian Weathering Crusts","authors":"","doi":"10.1134/s0031030124600045","DOIUrl":"https://doi.org/10.1134/s0031030124600045","url":null,"abstract":"<span> <h3>Abstract</h3> <p>In the early Precambrian, microorganisms, bacteria, possibly cyanobacteria, and even unicellular eukaryotes accompanied the formation of weathering crusts, i.e., the crusts were initially formed with the participation of bacteria. Findings of fossil microorganisms in ancient weathering crusts are important because they suggest that the land was already inhabited at such a distant time. Modern bacterial-paleontological research has changed our understanding of the earliest stages of the evolution of life on Earth.</p> </span>","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":"104 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140200098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1134/s0031030123600075
Abstract
The generic name Scaphium Jordan, 1964 (Podocopida; Bythocytheridae) is a junior homonym of the beetle genus name Scaphium Kirby, 1837 (Coleoptera; Staphylinidae) and therefore a replacement name Rudolfestatscaphium nom. nov. is proposed here by the author.
{"title":"Rudolfestatscaphium nom. nov.: Replacement Name for the Preoccupied Genus Name Scaphium Jordan, 1964","authors":"","doi":"10.1134/s0031030123600075","DOIUrl":"https://doi.org/10.1134/s0031030123600075","url":null,"abstract":"<span> <h3>Abstract</h3> <p>The generic name <em>Scaphium</em> Jordan, 1964 (Podocopida; Bythocytheridae) is a junior homonym of the beetle genus name <em>Scaphium</em> Kirby, 1837 (Coleoptera; Staphylinidae) and therefore a replacement name <em>Rudolfestatscaphium</em> nom. nov. is proposed here by the author.</p> </span>","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":"31 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140200059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1134/s0031030124600094
Abstract
A study of the Tomtor rare-earth-niobium deposit showed the presence of massive accumulations of remains of filamentous and coccoid microorganisms in varying degrees of preservation, lithified by rare-earth phosphate. They resemble modern benthic cyanobacteria.
{"title":"Chapter 9. Rare-Earth-Niobium Ores of Tomtor","authors":"","doi":"10.1134/s0031030124600094","DOIUrl":"https://doi.org/10.1134/s0031030124600094","url":null,"abstract":"<span> <h3>Abstract</h3> <p>A study of the Tomtor rare-earth-niobium deposit showed the presence of massive accumulations of remains of filamentous and coccoid microorganisms in varying degrees of preservation, lithified by rare-earth phosphate. They resemble modern benthic cyanobacteria.</p> </span>","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":"8 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140199992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1134/s0031030123080026
Abstract
One junior homonym was detected within fossil Branchiopoda and the following name is therefore proposed to replace it: Jurapingquania Ceccolini and Cianferoni nom. nov. = Pingquania Wang in Wang and Li, 2008 nec Guo and Duan, 1978.
摘要 在化石Branchiopoda中发现了一个小同名，因此建议用以下名称来代替它：Jurapingquania Ceccolini and Cianferoni nom.
{"title":"A New Replacement Name for an Upper Jurassic Genus of Clam Shrimp (Branchiopoda: Diplostraca)","authors":"","doi":"10.1134/s0031030123080026","DOIUrl":"https://doi.org/10.1134/s0031030123080026","url":null,"abstract":"<span> <h3>Abstract</h3> <p>One junior homonym was detected within fossil Branchiopoda and the following name is therefore proposed to replace it: <em>Jurapingquania</em> Ceccolini and Cianferoni nom. nov. = <em>Pingquania</em> Wang in Wang and Li, 2008 nec Guo and Duan, 1978.</p> </span>","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":"93 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-30DOI: 10.1134/s0031030123070018
M. S. Afanasieva
Abstract
Kungurian radiolarians from the Lower Permian sections Alegazovo on the Ai River and Mechetlino on the Yuryuzan River on the western slope of the South Urals were studied. The distribution of 23 radiolarian species in the studied sections was analyzed, enabling the recognition of two new radiolarian ecozones: Astroentactinia mirifica of the Saraninian Regional Substage in the Neostreptognathodus pnevi conodont Zone and Alexialeks uralicus–Octatormentum permicum of the Irenian Regional Substage, corresponding to the Neostreptognathodus imperfectus conodont Zone. The ecozones are based on the quantitative ratio of high-ranking taxa (classes). The use of the method of correlation of taxa of higher rank at the class level as an indicator of changes in paleoenvironments shows the inversion of the taxonomic composition of radiolarian associations of new ecozones of the Saraninian and Irenian regional substages indicating a change in the radiolarian habitats due to the shallowing of the basin. The taxonomic compositions of the radiolarian associations of the basinal and shelf environment are shown to be different. Three new radiolarian species from the Kungurian Stage of the South Urals are described: Astroentactinia mirifica Afanasieva, sp. nov., Helioentactinia parvispina Afanasieva, sp. nov., and H. venusta Afanasieva, sp. nov.
{"title":"Radiolarians of the Kungurian Stage of the Lower Permian in the South Urals of Russia","authors":"M. S. Afanasieva","doi":"10.1134/s0031030123070018","DOIUrl":"https://doi.org/10.1134/s0031030123070018","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Kungurian radiolarians from the Lower Permian sections Alegazovo on the Ai River and Mechetlino on the Yuryuzan River on the western slope of the South Urals were studied. The distribution of 23 radiolarian species in the studied sections was analyzed, enabling the recognition of two new radiolarian ecozones: <i>Astroentactinia mirifica</i> of the Saraninian Regional Substage in the <i>Neostreptognathodus pnevi</i> conodont Zone and <i>Alexialeks uralicus–Octatormentum permicum</i> of the Irenian Regional Substage, corresponding to the <i>Neostreptognathodus imperfectus</i> conodont Zone. The ecozones are based on the quantitative ratio of high-ranking taxa (classes). The use of the method of correlation of taxa of higher rank at the class level as an indicator of changes in paleoenvironments shows the inversion of the taxonomic composition of radiolarian associations of new ecozones of the Saraninian and Irenian regional substages indicating a change in the radiolarian habitats due to the shallowing of the basin. The taxonomic compositions of the radiolarian associations of the basinal and shelf environment are shown to be different. Three new radiolarian species from the Kungurian Stage of the South Urals are described: <i>Astroentactinia mirifica</i> Afanasieva, sp. nov., <i>Helioentactinia parvispina</i> Afanasieva, sp. nov., and <i>H. venusta</i> Afanasieva, sp. nov.</p>","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":"87 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138538724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-30DOI: 10.1134/s0031030123070109
Jan Kresten Nielsen
Abstract
Mikulinian (Eemian) marine deposits are widespread in the northern Arkhangelsk Region, Russia. Shoreface deposits have been found in exposures along the Pyoza and Vaskha rivers; however, deposits of undoubtedly tidal origin have not hitherto been recognized there. By contrast, here we show that shells of Macoma balthica (Linnaeus, 1758) (Tellinidae, Bivalvia) unearthed from the shoreface deposits show growth patterns indicating that the bivalves lived in an environment affected by tidal periodicity. The periodicity was a mixed tide with significantly diurnal inequality in the height of the low waters. In the Arkhangelsk Region, the Mikulinian hydrodynamical conditions of the tidally influenced regime are still poorly known. Because the spatial and temporal distribution of M. balthica is broad in the fossil record, its shells have a large potential for tidal interpretations, as contribution to hydrological reconstructions.
{"title":"Shell Growth Increments as Indicator of Tide in the Arkhangelsk Region (Russia) during the Mikulinian Interglacial","authors":"Jan Kresten Nielsen","doi":"10.1134/s0031030123070109","DOIUrl":"https://doi.org/10.1134/s0031030123070109","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Mikulinian (Eemian) marine deposits are widespread in the northern Arkhangelsk Region, Russia. Shoreface deposits have been found in exposures along the Pyoza and Vaskha rivers; however, deposits of undoubtedly tidal origin have not hitherto been recognized there. By contrast, here we show that shells of <i>Macoma balthica</i> (Linnaeus, 1758) (Tellinidae, Bivalvia) unearthed from the shoreface deposits show growth patterns indicating that the bivalves lived in an environment affected by tidal periodicity. The periodicity was a mixed tide with significantly diurnal inequality in the height of the low waters. In the Arkhangelsk Region, the Mikulinian hydrodynamical conditions of the tidally influenced regime are still poorly known. Because the spatial and temporal distribution of <i>M. balthica</i> is broad in the fossil record, its shells have a large potential for tidal interpretations, as contribution to hydrological reconstructions.</p>","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":"41 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138538737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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