G. Geyer, E. Landing, S. Höhn, U. Linnemann, Stefan Meier, T. Servais, Thomas Wotte, H. Herbig
{"title":"Revised Cambrian stratigraphy in the Franconian Forest (Frankenwald), Germany, reveals typical West Gondwanan succession in the Saxothuringian Belt","authors":"G. Geyer, E. Landing, S. Höhn, U. Linnemann, Stefan Meier, T. Servais, Thomas Wotte, H. Herbig","doi":"10.1127/NOS/2019/0495","DOIUrl":"https://doi.org/10.1127/NOS/2019/0495","url":null,"abstract":"","PeriodicalId":49750,"journal":{"name":"Newsletters on Stratigraphy","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NOS/2019/0495","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47630325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cretaceous radiolarian biostratigraphy in the Yezo Group, Hokkaido, Northeast Japan","authors":"H. Koyasu, H. Nishi, R. Takashima, N. Suzuki","doi":"10.1127/NOS/2018/0357","DOIUrl":"https://doi.org/10.1127/NOS/2018/0357","url":null,"abstract":"","PeriodicalId":49750,"journal":{"name":"Newsletters on Stratigraphy","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48889927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Schootbrugge, S. Richoz, J. Pross, F. Luppold, S. Hunze, T. Wonik, J. Blau, C. Meister, C. V. D. Weijst, G. Suan, Ángela Fraguas, J. Fiebig, J. Herrle, J. Guex, C. Little, P. Wignall, W. Püttmann, W. Oschmann
With the aim to understand prolonged and repeated marine anoxia after the Triassic-Jurassic mass- extinction event, a continuously cored, 338 metre thick succession of Rhaetian to Toarcian sediments was retrieved close to the village of Schandelah near Braunschweig (Lower Saxony, northern Germany). Here, preliminary biostratigraphical, lithological, sedimentological, geochemical, and geophysical borehole data are presented and discussed. Based on the presence of ammonites, ostracods, benthic foraminifers, calcareous nannofossils, and palynomorphs, all major Late Triassic and Early Jurassic stage boundaries and many of the standard Lower Jurassic ammonite zones could be defined. The deltaic Rhaetian sand- and siltstone succession (Exter Fm) contains evidence for seismic activity probably related to large-scale geodynamic processes. The Hettangian (Lias Alpha) is represented by a thick heterolithic succession composed of shallow marine sandy and silty beds with intercalated organic-rich shale, representing deposition on a shoreface with frequent storm activity. Progressive deepening during the Sinemurian to Toarcian resulted in repeated deposition of laminated organic-rich facies. Periods of relative sea-level fall likely occurred during the Late Hettangian, the Late Sinemurian, and Early Pliensbachian, where a series of hardgrounds occur indicating erosion on the sea floor followed by sea level rise leading to omission, and increased reworking. One of the most conspicuous features of the Lower Jurassic in the Schandelah-1 core is the presence of abundant authigenic carbonates (glendonites,concretions, beef-calcite) within the Upper Pliensbachian with partly very negative C-isotope values (down to –37‰ V-PDB) suggesting the anaerobic oxidation of methane. A high-resolution organic carbon isotope record based on 485 analyses shows two major negative carbon isotope excursions (CIEs) within the lowermost Hettangian and Lower Toarcian, respectively. Both excursions coincide with the onset of black shale deposition and are well-known features of these time-intervals in other regions. Despite the fact that black shale deposition also characterizes parts of the Sinemurian and Pliensbachian in similar facies, no large negative CIEs are apparent. The Schandelah-1 core thus provides an unique archive of sedimentary, biotic and geochemical records of long-term Triassic-Jurassic palaeo-environmental change in the European Epicontinental Seaway.
{"title":"The Schandelah Scientific Drilling Project: A 25-million year record of Early Jurassic palaeo-environmental change from northern Germany","authors":"B. Schootbrugge, S. Richoz, J. Pross, F. Luppold, S. Hunze, T. Wonik, J. Blau, C. Meister, C. V. D. Weijst, G. Suan, Ángela Fraguas, J. Fiebig, J. Herrle, J. Guex, C. Little, P. Wignall, W. Püttmann, W. Oschmann","doi":"10.1127/NOS/2018/0259","DOIUrl":"https://doi.org/10.1127/NOS/2018/0259","url":null,"abstract":"With the aim to understand prolonged and repeated marine anoxia after the Triassic-Jurassic mass- extinction event, a continuously cored, 338 metre thick succession of Rhaetian to Toarcian sediments was retrieved close to the village of Schandelah near Braunschweig (Lower Saxony, northern Germany). Here, preliminary biostratigraphical, lithological, sedimentological, geochemical, and geophysical borehole data are presented and discussed. Based on the presence of ammonites, ostracods, benthic foraminifers, calcareous nannofossils, and palynomorphs, all major Late Triassic and Early Jurassic stage boundaries and many of the standard Lower Jurassic ammonite zones could be defined. The deltaic Rhaetian sand- and siltstone succession (Exter Fm) contains evidence for seismic activity probably related to large-scale geodynamic processes. The Hettangian (Lias Alpha) is represented by a thick heterolithic succession composed of shallow marine sandy and silty beds with intercalated organic-rich shale, representing deposition on a shoreface with frequent storm activity. Progressive deepening during the Sinemurian to Toarcian resulted in repeated deposition of laminated organic-rich facies. Periods of relative sea-level fall likely occurred during the Late Hettangian, the Late Sinemurian, and Early Pliensbachian, where a series of hardgrounds occur indicating erosion on the sea floor followed by sea level rise leading to omission, and increased reworking. One of the most conspicuous features of the Lower Jurassic in the Schandelah-1 core is the presence of abundant authigenic carbonates (glendonites,concretions, beef-calcite) within the Upper Pliensbachian with partly very negative C-isotope values (down to –37‰ V-PDB) suggesting the anaerobic oxidation of methane. A high-resolution organic carbon isotope record based on 485 analyses shows two major negative carbon isotope excursions (CIEs) within the lowermost Hettangian and Lower Toarcian, respectively. Both excursions coincide with the onset of black shale deposition and are well-known features of these time-intervals in other regions. Despite the fact that black shale deposition also characterizes parts of the Sinemurian and Pliensbachian in similar facies, no large negative CIEs are apparent. The Schandelah-1 core thus provides an unique archive of sedimentary, biotic and geochemical records of long-term Triassic-Jurassic palaeo-environmental change in the European Epicontinental Seaway.","PeriodicalId":49750,"journal":{"name":"Newsletters on Stratigraphy","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NOS/2018/0259","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41795290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Takashima, H. Nishi, T. Yamanaka, Y. Orihashi, Yasuyuki Tsujino, X. Quidelleur, K. Hayashi, K. Sawada, Hideto Nakamura, T. Ando
The Yezo Group, exposed in Hokkaido, northern Japan, is one of the few strata that recorded Cretaceous paleo-oceanographic changes in the Pacific Ocean. Although the group yields abundant marine macro- and microfossils, sporadic occurrences of age-diagnostic species in several stratigraphic intervals has prevented high-resolution international biostratigraphic correlation. The proposed integrated bio- and carbon isotope stratigraphy of the Yezo Group, which is exposed in northwest Hokkaido, enables high-resolution international stratigraphic correlation spanning from Upper Albian to Lower Campanian. The correlation of the present study identifies the detailed stratigraphic horizons of the Albian/Cenomanian, Cenomanian/Turonian, Turonian/Coniacian, Coniacian/Santonian, and Santonian/Campanian boundaries, as well as the Late Cretaceous paleo-environmental events in the Yezo Group. The Yezo Group is also important in order to complement the chronometric age of the Cretaceous geologic time scale because the group includes numerous felsic tuffs. The U-Pb zircon ages of some of these tuffs, which are interbedded near the Albian/Cenomanian, Coniacian/Santonian and the Santonian/Campanian boundaries in the Yezo Group, are dated at 99.7±0.3 Ma (Quidelleur et al. 2011), 86.87±0.60/0.67 (internal/total error) Ma and 84.7±0.7/1.8 (internal/total error) Ma, respectively. These radiometric ages are consistent with the latest age model of the Cretaceous time scale.
{"title":"Establishment of Upper Cretaceous bio- and carbon isotope stratigraphy in the northwest Pacific Ocean and radiometric ages around the Albian/Cenomanian, Coniacian/Santonian and Santonian/Campanian boundaries","authors":"R. Takashima, H. Nishi, T. Yamanaka, Y. Orihashi, Yasuyuki Tsujino, X. Quidelleur, K. Hayashi, K. Sawada, Hideto Nakamura, T. Ando","doi":"10.1127/NOS/2019/0472","DOIUrl":"https://doi.org/10.1127/NOS/2019/0472","url":null,"abstract":"The Yezo Group, exposed in Hokkaido, northern Japan, is one of the few strata that recorded Cretaceous paleo-oceanographic changes in the Pacific Ocean. Although the group yields abundant marine macro- and microfossils, sporadic occurrences of age-diagnostic species in several stratigraphic intervals has prevented high-resolution international biostratigraphic correlation. The proposed integrated bio- and carbon isotope stratigraphy of the Yezo Group, which is exposed in northwest Hokkaido, enables high-resolution international stratigraphic correlation spanning from Upper Albian to Lower Campanian. The correlation of the present study identifies the detailed stratigraphic horizons of the Albian/Cenomanian, Cenomanian/Turonian, Turonian/Coniacian, Coniacian/Santonian, and Santonian/Campanian boundaries, as well as the Late Cretaceous paleo-environmental events in the Yezo Group. The Yezo Group is also important in order to complement the chronometric age of the Cretaceous geologic time scale because the group includes numerous felsic tuffs. The U-Pb zircon ages of some of these tuffs, which are interbedded near the Albian/Cenomanian, Coniacian/Santonian and the Santonian/Campanian boundaries in the Yezo Group, are dated at 99.7±0.3 Ma (Quidelleur et al. 2011), 86.87±0.60/0.67 (internal/total error) Ma and 84.7±0.7/1.8 (internal/total error) Ma, respectively. These radiometric ages are consistent with the latest age model of the Cretaceous time scale.","PeriodicalId":49750,"journal":{"name":"Newsletters on Stratigraphy","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NOS/2019/0472","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47060113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Aljahdali, S. Wise, D. Bord, J. Pospichal, Tuğba Çevik
{"title":"A review of tropical calcareous nannofossil biostratigraphy across the early/late oligocene: a new taxon-range zone","authors":"M. Aljahdali, S. Wise, D. Bord, J. Pospichal, Tuğba Çevik","doi":"10.1127/NOS/2019/0493","DOIUrl":"https://doi.org/10.1127/NOS/2019/0493","url":null,"abstract":"","PeriodicalId":49750,"journal":{"name":"Newsletters on Stratigraphy","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NOS/2019/0493","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49257483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Manuel Casas-Gallego, I. Pérez-Rodríguez, J. Fenton, D. Gold, A. Mârza, Eugen P. Tudor
{"title":"Integrated biostratigraphic, palaeoenvironmental and wireline log characterisation of upper Miocene to lower Pliocene successions of the eastern Dacian Basin (SE Romania)","authors":"Manuel Casas-Gallego, I. Pérez-Rodríguez, J. Fenton, D. Gold, A. Mârza, Eugen P. Tudor","doi":"10.1127/NOS/2019/0531","DOIUrl":"https://doi.org/10.1127/NOS/2019/0531","url":null,"abstract":"","PeriodicalId":49750,"journal":{"name":"Newsletters on Stratigraphy","volume":"1 1","pages":"71-92"},"PeriodicalIF":2.2,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NOS/2019/0531","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41683587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wiesława Radmacher, I. Niezgodzki, J. Tyszka, Gunn Mangerud, M. Pearce
{"title":"Palynology vs. model simulation: oceanographic reconstruction of incomplete data from the Cretaceous Greenland–Norwegian Seaway","authors":"Wiesława Radmacher, I. Niezgodzki, J. Tyszka, Gunn Mangerud, M. Pearce","doi":"10.1127/NOS/2019/0527","DOIUrl":"https://doi.org/10.1127/NOS/2019/0527","url":null,"abstract":"","PeriodicalId":49750,"journal":{"name":"Newsletters on Stratigraphy","volume":"1 1","pages":"93-120"},"PeriodicalIF":2.2,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48254711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Orbital forcing of carbonate versus siliceous productivity in the late Albian–late Cenomanian (Umbria-Marche Basin, central Italy)","authors":"G. Gambacorta, A. Malinverno, E. Erba","doi":"10.1127/NOS/2018/0456","DOIUrl":"https://doi.org/10.1127/NOS/2018/0456","url":null,"abstract":"","PeriodicalId":49750,"journal":{"name":"Newsletters on Stratigraphy","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NOS/2018/0456","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42947585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Harzhauser, Dörte Theobalt, P. Strauss, O. Mandic, W. Piller
{"title":"Seismic-based lower and middle Miocene stratigraphy in the northwestern Vienna Basin (Austria)","authors":"M. Harzhauser, Dörte Theobalt, P. Strauss, O. Mandic, W. Piller","doi":"10.1127/NOS/2018/0490","DOIUrl":"https://doi.org/10.1127/NOS/2018/0490","url":null,"abstract":"","PeriodicalId":49750,"journal":{"name":"Newsletters on Stratigraphy","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42987613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alessandro Menini, E. Mattioli, J. Spangenberg, B. Pittet, G. Suan
{"title":"New calcareous nannofossil and carbon isotope data for the Pliensbachian/Toarcian boundary (Early Jurassic) in the western Tethys and their paleoenvironmental implications","authors":"Alessandro Menini, E. Mattioli, J. Spangenberg, B. Pittet, G. Suan","doi":"10.1127/NOS/2018/0476","DOIUrl":"https://doi.org/10.1127/NOS/2018/0476","url":null,"abstract":"","PeriodicalId":49750,"journal":{"name":"Newsletters on Stratigraphy","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1127/NOS/2018/0476","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47166812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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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