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Upper Kimmeridgian to Lower Tithonian foraminifers and ostracods of the Boulonnais region, Northern France. Stratigraphic and palaeoenvironmental implications and inter-regional correlations with the Siberian arctic
Colpaert, C. P. A-M1,2; Nikitenko, B.1,3; Danelian, T.4; Elena, Fursenko1; Igor, Kosenko1,2,3
2021-04-01
Source PublicationMARINE MICROPALEONTOLOGY
ISSN0377-8398
Volume164Pages:20
Abstract

The well-exposed Upper Kimmeridgian to Lower Tithonian sequences of the Boulonnais Region (Northern France) are revisited with an integrated litho-, bio- and chemostratigraphic study of the Cran du Noirda (CDN) and Pointe de la Cr`eche (PDC) sections. Three foraminiferal and two ostracods zones are identified and tied to the ammonite zones previously established in the Boulonnais. The Upper Kimmeridgian Pseudolamarckina pseudorjasanensis foraminifera Zone is of particular interest, as we establish that it may be recognized in very distant regions throughout the Subboreal, Boreal, and Arctic provinces. The comprehensive analysis of the TOC content and Rock Eval pyrolysis allows to underline the deposition of a Lower Tithonian Organic-Rich Interval (ORI) associated with the wheatleyensis - scitulus (p.p.) ammonite zones. Furthermore, the palaeoecological analysis of the identified foraminiferal assemblages suggests the occurrence of four dysoxic events during the Late Kimmeridgian to Early Tithonian. Foraminiferal assemblages with genera adapted to low-oxygen conditions are present in intervals with high values of d13CTOC. During the Late Kimmeridgian to Early Tithonian, organic-rich deposits are widespread across the Western European Archipelago and the Laurasian Seaway. The establishment of hypoxic conditions above the sea-floor was favoured by high marine productivity and stratification of the water column. Conversely, periods of low relative sea-level resulted in the redeposition of sediments from the margins into the basin, while water depth was insufficient to allow the development of reduced conditions.

KeywordBenthic Foraminifera. Ostracods. Biostratigraphy. Biofacies. Organic-Rich Intervals. Late Jurassic. Boulonnais Region. France
DOI10.1016/j.marmicro.2021.101976
Indexed BySCI
Language英语
WOS KeywordWESSEX-WEALD BASIN ; SEQUENCE STRATIGRAPHY ; BENTHIC FORAMINIFERA ; CLAY FORMATION ; DEPOSITS ; MORPHOGROUPS ; EVOLUTION ; AREA
Funding ProjectUniversity of Lille ; Russian Science Foundation[18-17-00038] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41572006] ; National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41972007]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000640185400005
Funding OrganizationUniversity of Lille ; Russian Science Foundation ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
PublisherELSEVIER
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/38157
Collection中国科学院南京地质古生物研究所
Corresponding AuthorColpaert, C. P. A-M
Affiliation1.Russian Acad Sci, Siberian Branch, Trofimuk Inst Petr Geol & Geophys, Pr Akad Koptyuga 3, Novosibirsk 630090, Russia
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Paleobiol & Stratig, Nanjing, Peoples R China
3.Novosibirsk State Univ, Ul Pirogova 2, Novosibirsk 630090, Russia
4.Univ Lille, CNRS, UMR 8198, Evo Ecopaleo, F-59000 Lille, France
Recommended Citation
GB/T 7714
Colpaert, C. P. A-M,Nikitenko, B.,Danelian, T.,et al. Upper Kimmeridgian to Lower Tithonian foraminifers and ostracods of the Boulonnais region, Northern France. Stratigraphic and palaeoenvironmental implications and inter-regional correlations with the Siberian arctic[J]. MARINE MICROPALEONTOLOGY,2021,164:20.
APA Colpaert, C. P. A-M,Nikitenko, B.,Danelian, T.,Elena, Fursenko,&Igor, Kosenko.(2021).Upper Kimmeridgian to Lower Tithonian foraminifers and ostracods of the Boulonnais region, Northern France. Stratigraphic and palaeoenvironmental implications and inter-regional correlations with the Siberian arctic.MARINE MICROPALEONTOLOGY,164,20.
MLA Colpaert, C. P. A-M,et al."Upper Kimmeridgian to Lower Tithonian foraminifers and ostracods of the Boulonnais region, Northern France. Stratigraphic and palaeoenvironmental implications and inter-regional correlations with the Siberian arctic".MARINE MICROPALEONTOLOGY 164(2021):20.
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