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Estonian Journal of Earth Sciences最新文献

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Nitrogen and organic carbon isotope record in Tremadocian highly metalliferous black shales from Baltica 波罗的海Tremadocian高含金属黑色页岩氮、有机碳同位素记录
IF 1.1 4区 地球科学
Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI: 10.3176/earth.2023.25
M. Ndiaye, M. Liiv, T. Kallaste, S. Graul, R. Hints
{"title":"Nitrogen and organic carbon isotope record in Tremadocian highly metalliferous black shales from Baltica","authors":"M. Ndiaye, M. Liiv, T. Kallaste, S. Graul, R. Hints","doi":"10.3176/earth.2023.25","DOIUrl":"https://doi.org/10.3176/earth.2023.25","url":null,"abstract":"Tremadocian highly metalliferous black shales and associated grey shales from the Aseri PH012B drill core (NE Estonia) in the innermost part of the Baltic Palaeobasin were targeted to record their nitrogen and organic carbon isotope variance combined with the total organic carbon and total nitrogen record. The obtained molar C/N ratios of black shales from 26 to 52 indicate a considerable loss of N compared to primary biomass. The recorded δ15N values from –2.5 to 0.2‰ likely evolved due to isotopic fractionation related to N2 fixation by primary producers, superimposed by later anoxic ammonium oxidation processes within the uppermost sediments. The high net primary productivity, which controlled the accumulation of organic-rich shallowwater complexes, was fuelled by the internal cycling of P in the sea basin and combined with intensive N exchange between marine and atmospheric pools.","PeriodicalId":50498,"journal":{"name":"Estonian Journal of Earth Sciences","volume":"11 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76434310","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: 2
Ordovician geology and stratigraphy of China: A synthesis 中国奥陶系地质与地层学综述
IF 1.1 4区 地球科学
Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI: 10.3176/earth.2023.72
Yuandong Zhanga, Renbin Zhana, Yongyi Zhenb, Wenhui Wangd, Lianga Yan, Xiang Fanga, Rongchang Wua, Kui Yana, Junpeng Zhanga, Wenjie Lia
{"title":"Ordovician geology and stratigraphy of China: A synthesis","authors":"Yuandong Zhanga, Renbin Zhana, Yongyi Zhenb, Wenhui Wangd, Lianga Yan, Xiang Fanga, Rongchang Wua, Kui Yana, Junpeng Zhanga, Wenjie Lia","doi":"10.3176/earth.2023.72","DOIUrl":"https://doi.org/10.3176/earth.2023.72","url":null,"abstract":"Received 30 March 2023 Accepted 4 April, 2023 Available online 16 June 2023","PeriodicalId":50498,"journal":{"name":"Estonian Journal of Earth Sciences","volume":"98 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79479273","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
New contributions to the Ordovician biostratigraphy of the Western Precordillera, Argentina 对阿根廷西部Precordillera地区奥陶系生物地层学的新贡献
IF 1.1 4区 地球科学
Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI: 10.3176/earth.2023.61
F. E. López, G. Ortega, G. Albanesi, A. Banchig
{"title":"New contributions to the Ordovician biostratigraphy of the Western Precordillera, Argentina","authors":"F. E. López, G. Ortega, G. Albanesi, A. Banchig","doi":"10.3176/earth.2023.61","DOIUrl":"https://doi.org/10.3176/earth.2023.61","url":null,"abstract":"","PeriodicalId":50498,"journal":{"name":"Estonian Journal of Earth Sciences","volume":"45 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85914591","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
Subway into the Ordovician (Prague Basin, Czech Republic) 奥陶纪地铁(布拉格盆地，捷克共和国)
IF 1.1 4区 地球科学
Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI: 10.3176/earth.2023.09
J. Bruthansová, P. Kraft, J. Bruthans
{"title":"Subway into the Ordovician (Prague Basin, Czech Republic)","authors":"J. Bruthansová, P. Kraft, J. Bruthans","doi":"10.3176/earth.2023.09","DOIUrl":"https://doi.org/10.3176/earth.2023.09","url":null,"abstract":"","PeriodicalId":50498,"journal":{"name":"Estonian Journal of Earth Sciences","volume":"33 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86568823","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
Solutan echinoderms from the Lower Ordovician of the Montagne Noire (France): new data and palaeobiogeographic implications 法国黑山下奥陶统溶洞棘皮动物:新资料及其古地理意义
IF 1.1 4区 地球科学
Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI: 10.3176/earth.2023.80
C. Dupichaud, B. Lefebvre, M. Nohejlová
{"title":"Solutan echinoderms from the Lower Ordovician of the Montagne Noire (France): new data and palaeobiogeographic implications","authors":"C. Dupichaud, B. Lefebvre, M. Nohejlová","doi":"10.3176/earth.2023.80","DOIUrl":"https://doi.org/10.3176/earth.2023.80","url":null,"abstract":"","PeriodicalId":50498,"journal":{"name":"Estonian Journal of Earth Sciences","volume":"16 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87290545","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: 1
Upper Ordovician chronostratigraphic correlation between the Appalachian and Midcontinent basins 阿巴拉契亚盆地与中大陆盆地上奥陶统年代地层对比
IF 1.1 4区 地球科学
Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI: 10.3176/earth.2023.22
C. Esteves, P. McLaughlin, A. Bancroft, T. Hearing, M. Williams, J. Ramezani, P. Emsbo, T. Vandenbroucke
{"title":"Upper Ordovician chronostratigraphic correlation between the Appalachian and Midcontinent basins","authors":"C. Esteves, P. McLaughlin, A. Bancroft, T. Hearing, M. Williams, J. Ramezani, P. Emsbo, T. Vandenbroucke","doi":"10.3176/earth.2023.22","DOIUrl":"https://doi.org/10.3176/earth.2023.22","url":null,"abstract":"","PeriodicalId":50498,"journal":{"name":"Estonian Journal of Earth Sciences","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90852536","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
Three-dimensionally preserved siphuncle in an actinoceratid cephalopod from the late Katian of Bohemia 波西米亚卡提亚晚期放线鱼纲头足类动物的三维保存虹吸管
IF 1.1 4区 地球科学
Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI: 10.3176/earth.2023.37
M. Aubrechtová, V. Turek
{"title":"Three-dimensionally preserved siphuncle in an actinoceratid cephalopod from the late Katian of Bohemia","authors":"M. Aubrechtová, V. Turek","doi":"10.3176/earth.2023.37","DOIUrl":"https://doi.org/10.3176/earth.2023.37","url":null,"abstract":"","PeriodicalId":50498,"journal":{"name":"Estonian Journal of Earth Sciences","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91344199","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
Ordovician climate changes in the northern subtropics: The δ18O record from the Tunguska Basin, Siberia 北亚热带奥陶纪气候变化:西伯利亚通古斯盆地的δ18O记录
IF 1.1 4区 地球科学
Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI: 10.3176/earth.2023.06
P. Männik, O. Lehnert, M. Joachimski
{"title":"Ordovician climate changes in the northern subtropics: The δ18O record from the Tunguska Basin, Siberia","authors":"P. Männik, O. Lehnert, M. Joachimski","doi":"10.3176/earth.2023.06","DOIUrl":"https://doi.org/10.3176/earth.2023.06","url":null,"abstract":"","PeriodicalId":50498,"journal":{"name":"Estonian Journal of Earth Sciences","volume":"52 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91357506","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
Geochemistry of the early Cambrian succession in the western Anti-Atlas, Morocco: implications on provenance and paleoredox conditions 摩洛哥Anti-Atlas西部早寒武世演替地球化学:物源和古氧化还原条件的意义
4区 地球科学
Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI: 10.3176/earth.2023.83
A Azizi, A El Albani, K El Hariri, A El Bakhouch, O Vinn, A Hafid, K Kirsimäe
{"title":"Geochemistry of the early Cambrian succession in the western Anti-Atlas, Morocco: implications on provenance and paleoredox conditions","authors":"A Azizi, A El Albani, K El Hariri, A El Bakhouch, O Vinn, A Hafid, K Kirsimäe","doi":"10.3176/earth.2023.83","DOIUrl":"https://doi.org/10.3176/earth.2023.83","url":null,"abstract":"","PeriodicalId":50498,"journal":{"name":"Estonian Journal of Earth Sciences","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135600103","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
Towards a revised Sandbian conodont biozonation of Baltica 对波罗的海沙边牙形刺生物分带的修正
IF 1.1 4区 地球科学
Estonian Journal of Earth Sciences Pub Date : 2023-01-01 DOI: 10.3176/earth.2023.07
T. Paiste, P. Männik, S. Stouge, T. Meidla
{"title":"Towards a revised Sandbian conodont biozonation of Baltica","authors":"T. Paiste, P. Männik, S. Stouge, T. Meidla","doi":"10.3176/earth.2023.07","DOIUrl":"https://doi.org/10.3176/earth.2023.07","url":null,"abstract":"","PeriodicalId":50498,"journal":{"name":"Estonian Journal of Earth Sciences","volume":"1021 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86468347","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
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