Earth and Environmental Science Transactions of the Royal Society of Edinburgh最新文献_第7页

Origin of chert in the Upper Ordovician–Lower Silurian: implications for the sedimentary environment of North Qilian Orogen 上奥陶统-下志留系燧石的成因——对北祁连造山带沉积环境的启示

IF 1.2 4区地球科学

Earth and Environmental Science Transactions of the Royal Society of Edinburgh Pub Date : 2021-03-01 DOI: 10.1017/S1755691021000025

Q. Hou, Chuanlong Mou, Zuozhen Han, Xiangying Ge, Qiyu Wang

{"title":"Origin of chert in the Upper Ordovician–Lower Silurian: implications for the sedimentary environment of North Qilian Orogen","authors":"Q. Hou, Chuanlong Mou, Zuozhen Han, Xiangying Ge, Qiyu Wang","doi":"10.1017/S1755691021000025","DOIUrl":"https://doi.org/10.1017/S1755691021000025","url":null,"abstract":"ABSTRACT During the Upper Ordovician–Lower Silurian, chert was widely distributed in the Zhongbao Formation in the eastern part of the North Qilian Orogen. The origin and the tectonic setting of these chert were largely unknown. In order to analyse the material provenance, sedimentary environment, their formation and the tectonic setting, we present petrology and geochemical research on chert samples collected from Shihuigou Section. The evidence provided by radiolarite occurrences, Aluminium (Al)–iron (Fe)–manganese diagram and the silicon(Si)/Si + Al + Fe + calcium ratios suggesting a non-hydrothermal input and the biogenic origin chert. The geochemical features and the petrographic signatures have shown that the chert was also influenced by a terrigenous origin. It is considered that the deposition of the Late Ordovician chert is mainly affected by tectonic collision and volcanic ash events. During the Late Ordovician–Early Silurian transition, huge amounts of volcanic ash were released by massive volcanic activity that fell into the ocean, triggering the proliferation of radiolarians. Finally, in the Late Ordovician–Lower Silurian the tectonic setting of the North Qilian Orogen was not a typical deep-water basin, nor a typical continental margin, but a multi-island deep-water basin, which is closed to the mainland.","PeriodicalId":55171,"journal":{"name":"Earth and Environmental Science Transactions of the Royal Society of Edinburgh","volume":"112 1","pages":"13 - 28"},"PeriodicalIF":1.2,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/S1755691021000025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43808443","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}

引用次数: 3

TRE volume 112 issue 1 Cover and Back matter TRE第112卷第1期封面和封底

IF 1.2 4区地球科学

Earth and Environmental Science Transactions of the Royal Society of Edinburgh Pub Date : 2021-03-01 DOI: 10.1017/s1755691021000220

Sara Lifshits, Q. Hou, Chuanlong Mou, Zuozhen Han, Qiyu Wang, Chunli Zheng, Hongkai Liao

引用次数: 0

TRE volume 112 issue 1 Cover and Front matter TRE第112卷第1期封面和封面问题

IF 1.2 4区地球科学

Earth and Environmental Science Transactions of the Royal Society of Edinburgh Pub Date : 2021-03-01 DOI: 10.1017/s1755691021000219

引用次数: 0

Deep fluids and their role in hydrocarbon migration and oil deposit formation exemplified by supercritical СO2 深层流体及其在油气运移和油藏形成中的作用——以超临界СO2为例

IF 1.2 4区地球科学

Earth and Environmental Science Transactions of the Royal Society of Edinburgh Pub Date : 2021-03-01 DOI: 10.1017/S1755691021000013

S. Lifshits

{"title":"Deep fluids and their role in hydrocarbon migration and oil deposit formation exemplified by supercritical СO2","authors":"S. Lifshits","doi":"10.1017/S1755691021000013","DOIUrl":"https://doi.org/10.1017/S1755691021000013","url":null,"abstract":"ABSTRACT Hydrocarbon migration mechanism into a reservoir is one of the most controversial in oil and gas geology. The research aimed to study the effect of supercritical carbon dioxide (СО2) on the permeability of sedimentary rocks (carbonates, argillite, oil shale), which was assessed by the yield of chloroform extracts and gas permeability (carbonate, argillite) before and after the treatment of rocks with supercritical СО2. An increase in the permeability of dense potentially oil-source rocks has been noted, which is explained by the dissolution of carbonates to bicarbonates due to the high chemical activity of supercritical СО2 and water dissolved in it. Similarly, in geological processes, the introduction of deep supercritical fluid into sedimentary rocks can increase the permeability and, possibly, the porosity of rocks, which will facilitate the primary migration of hydrocarbons and improve the reservoir properties of the rocks. The considered mechanism of hydrocarbon migration in the flow of deep supercritical fluid makes it possible to revise the time and duration of the formation of gas–oil deposits decreasingly, as well as to explain features in the formation of various sources of hydrocarbons and observed inflow of oil into operating and exhausted wells.","PeriodicalId":55171,"journal":{"name":"Earth and Environmental Science Transactions of the Royal Society of Edinburgh","volume":"112 1","pages":"1 - 11"},"PeriodicalIF":1.2,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/S1755691021000013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49363922","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}

引用次数: 0

Cranial morphology of the middle Permian pareiasaur Nochelesaurus alexanderi from the Karoo Basin of South Africa 南非卡鲁盆地中二叠世亚力山德氏异长龙Nochelesaurus alexanderi的颅骨形态

IF 1.2 4区地球科学

Earth and Environmental Science Transactions of the Royal Society of Edinburgh Pub Date : 2021-03-01 DOI: 10.1017/S1755691021000049

M. J. Van den Brandt, B. Rubidge, J. Benoit, F. Abdala

{"title":"Cranial morphology of the middle Permian pareiasaur Nochelesaurus alexanderi from the Karoo Basin of South Africa","authors":"M. J. Van den Brandt, B. Rubidge, J. Benoit, F. Abdala","doi":"10.1017/S1755691021000049","DOIUrl":"https://doi.org/10.1017/S1755691021000049","url":null,"abstract":"ABSTRACT Pareiasaurs were globally distributed, abundant, herbivorous parareptiles with the basal-most members found only in the mid-Permian of South Africa. These basal forms form a monophyletic group and were locally abundant and became extinct at the top of the Tapinocephalus Assemblage Zone at the end of the Guadalupian. Four species of basal pareiasaurs are currently recognised: Bradysaurus baini, B. seeleyi, Embrithosaurus schwarzi and Nochelesaurus alexanderi, but they are all poorly understood and there remains historic uncertainty as to their validity. In this paper, our second contribution designed to improve understanding of the basal group, we present the first detailed cranial description and updated diagnosis for Nochelesaurus alexanderi and demonstrate that it is a distinct taxon based on one cranial autapomorphy, a large transversely wide postparietal, and a combination of cranial characters. Within the local group of mid-Permian pareiasaurs, we recognise new dental features of Nochelesaurus alexanderi: non-symmetrical marginal cusp arrangements on upper and lower teeth resulting from an extra basal mesial cusp; an incipient horizontal cingulum on lower jaw teeth, sometimes with one or two tiny medial cingular cusps; and up to ten marginal cusps. Our study demonstrates that tooth morphology and orientation, cranial ornamentation, morphology of the cheek bosses, shape of the postfrontal and postparietal, and morphology of the distal paroccipital process of the opisthotic are the most useful to identify South African mid-Permian pareiasaurs.","PeriodicalId":55171,"journal":{"name":"Earth and Environmental Science Transactions of the Royal Society of Edinburgh","volume":"112 1","pages":"29 - 49"},"PeriodicalIF":1.2,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/S1755691021000049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43480380","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}

引用次数: 3

TRE volume 111 issue 4 Cover and Back matter TRE卷111期4封面和封底

IF 1.2 4区地球科学

Earth and Environmental Science Transactions of the Royal Society of Edinburgh Pub Date : 2020-12-01 DOI: 10.1017/s175569102100013x

D. Foffa, R. Butler, S. Nesbitt, S. Walsh, P. Barrett, S. Brusatte, N. Fraser, Yao Chen, Hui Qian, Zixiang Wang

引用次数: 0

TRE volume 111 issue 4 Cover and Front matter TRE第111卷第4期封面和封面

IF 1.2 4区地球科学

Earth and Environmental Science Transactions of the Royal Society of Edinburgh Pub Date : 2020-12-01 DOI: 10.1017/s1755691021000128

引用次数: 0

Relationship between biomarkers and iron speciation and their environmental significance in plateau subsidence lacus: an example of Luguhu Lake, southeastern Tibetan Plateau 高原沉降区生物标志物与铁形态的关系及其环境意义——以青藏高原东南部泸沽湖为例

IF 1.2 4区地球科学

Earth and Environmental Science Transactions of the Royal Society of Edinburgh Pub Date : 2020-12-01 DOI: 10.1017/S1755691020000158

Zixiang Wang, Lina Sun

{"title":"Relationship between biomarkers and iron speciation and their environmental significance in plateau subsidence lacus: an example of Luguhu Lake, southeastern Tibetan Plateau","authors":"Zixiang Wang, Lina Sun","doi":"10.1017/S1755691020000158","DOIUrl":"https://doi.org/10.1017/S1755691020000158","url":null,"abstract":"ABSTRACT Herein, we present a synthetic study combining iron (Fe) speciation and biomarkers in sediment samples from Luguhu Lake to investigate their relationship and the environmental significance thereof. Mössbauer spectroscopy and gas chromatography–mass spectrometry were used for these measurements. The results suggest that (a) there is a strong negative correlation between Fe2+/Fe3+ and the ratio of pristane to phytane (Pr/Ph), indicating that both Fe2+/Fe3+ and Pr/Ph effectively present the inorganic and organic aspects, respectively, of the oxidation–deoxidation environment in Luguhu Lake; (b) palaeotemperature may be a factor, in addition to the redox conditions, that affects the Fe2+/Fe3+ ratio, and it might play a favourable role in studies of palaeotemperature; and (c) the relative abundance of Fe in Luguhu Lake is affected by the palaeoclimate and the environment in which the palaeosediment was deposited. The mechanism of change in the total area (the total absorption area of Mössbauer spectrum) with the palaeoenvironment seems to be explained by the loss of Fe, which occurs as the water drains out of the lake, and the increase in Fe loss from the sediment as rainfall levels increase.","PeriodicalId":55171,"journal":{"name":"Earth and Environmental Science Transactions of the Royal Society of Edinburgh","volume":"111 1","pages":"259 - 266"},"PeriodicalIF":1.2,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/S1755691020000158","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45747488","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}

引用次数: 0

A relict tropical forest bat assemblage from the early Miocene of the Ribesalbes-Alcora Basin (Castelló, Spain) Ribesalbes-Alcora盆地中新世早期热带森林蝙蝠遗存群落(Castelló，西班牙)

IF 1.2 4区地球科学

Earth and Environmental Science Transactions of the Royal Society of Edinburgh Pub Date : 2020-11-10 DOI: 10.1017/S1755691020000122

V. Crespo, P. Sevilla, P. Montoya, F. Ruiz-Sánchez

{"title":"A relict tropical forest bat assemblage from the early Miocene of the Ribesalbes-Alcora Basin (Castelló, Spain)","authors":"V. Crespo, P. Sevilla, P. Montoya, F. Ruiz-Sánchez","doi":"10.1017/S1755691020000122","DOIUrl":"https://doi.org/10.1017/S1755691020000122","url":null,"abstract":"ABSTRACT We present the bat assemblage from the early Miocene (MN4, 16.9–15.95 MY) basin of Ribesalbes-Alcora, which has yielded the remains of ten chiropteran taxa. Bat assemblages are rarely recovered in the fluvio-lacustrine fossil record. A bat species described in this work, Cuvierimops penalveri sp. nov., is a new form of a typically Oligocene free-tailed bat. In addition, the other molossids Hydromops helveticus, Rhizomops cf. brasiliensis, Chaerephon sp., Tadarida sp., and the vespertilionids Myotis cf. intermedius and Miostrellus aff. petersbuchensis, as well as undetermined fossils ascribed to the genera Submyotodon, Plecotus, and Rhinolophus are described. This is the first record of the genus Rhizomops in the early Miocene; the genus Cuvierimops is the first recording from the Neogene, while the ‘Lazarus taxon’ Chaerephon is the first fossil record of this genus, registered previously only in Holocene deposits. This bat assemblage with a high abundance of molossids is typical from the early Oligocene of western Europe, while in the early Miocene from Europe the molossids are scarce. The abundance of these bats is consistent with the presence of a tropical forest surrounding a paleolake. The fossils from the Ribesalbes-Alcora Basin represent the most complete bat assemblage of the Iberian Peninsula during this age, and significantly increase our knowledge about the early Miocene bats of Europe.","PeriodicalId":55171,"journal":{"name":"Earth and Environmental Science Transactions of the Royal Society of Edinburgh","volume":"111 1","pages":"247 - 258"},"PeriodicalIF":1.2,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/S1755691020000122","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44955657","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}

引用次数: 8

Revision of Erpetosuchus (Archosauria: Pseudosuchia) and new erpetosuchid material from the Late Triassic ‘Elgin Reptile’ fauna based on μCT scanning techniques 基于微ct扫描技术的晚三叠世Elgin爬行动物区系Erpetosuchus(始祖亚目:Pseudosuchia)和新材料的修正

IF 1.2 4区地球科学

Earth and Environmental Science Transactions of the Royal Society of Edinburgh Pub Date : 2020-11-06 DOI: 10.1017/S1755691020000109

D. Foffa, R. Butler, S. Nesbitt, S. Walsh, P. Barrett, S. Brusatte, N. Fraser

{"title":"Revision of Erpetosuchus (Archosauria: Pseudosuchia) and new erpetosuchid material from the Late Triassic ‘Elgin Reptile’ fauna based on μCT scanning techniques","authors":"D. Foffa, R. Butler, S. Nesbitt, S. Walsh, P. Barrett, S. Brusatte, N. Fraser","doi":"10.1017/S1755691020000109","DOIUrl":"https://doi.org/10.1017/S1755691020000109","url":null,"abstract":"ABSTRACT The Late Triassic fauna of the Lossiemouth Sandstone Formation (LSF) from the Elgin area, Scotland, has been pivotal in expanding our understanding of Triassic terrestrial tetrapods. Frustratingly, due to their odd preservation, interpretations of the Elgin Triassic specimens have relied on destructive moulding techniques, which only provide incomplete, and potentially distorted, information. Here, we show that micro-computed tomography (μCT) could revitalise the study of this important assemblage. We describe a long-neglected specimen that was originally identified as a pseudosuchian archosaur, Ornithosuchus woodwardi. μCT scans revealed dozens of bones belonging to at least two taxa: a small-bodied pseudosuchian and a specimen of the procolophonid Leptopleuron lacertinum. The pseudosuchian skeleton possesses a combination of characters that are unique to the clade Erpetosuchidae. As a basis for investigating the phylogenetic relationships of this new specimen, we reviewed the anatomy, taxonomy and systematics of other erpetosuchid specimens from the LSF (all previously referred to Erpetosuchus). Unfortunately, due to the differing representation of the skeleton in the available Erpetosuchus specimens, we cannot determine whether the erpetosuchid specimen we describe here belongs to Erpetosuchus granti (to which we show it is closely related) or if it represents a distinct new taxon. Nevertheless, our results shed light on rarely preserved details of erpetosuchid anatomy. Finally, the unanticipated new information extracted from both previously studied and neglected specimens suggests that fossil remains may be much more widely distributed in the Elgin quarries than previously recognised, and that the richness of the LSF might have been underestimated.","PeriodicalId":55171,"journal":{"name":"Earth and Environmental Science Transactions of the Royal Society of Edinburgh","volume":"111 1","pages":"209 - 233"},"PeriodicalIF":1.2,"publicationDate":"2020-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/S1755691020000109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43347397","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}

引用次数: 6