Lower Cretaceous nannofossils of ODP Holes 113-682B and 113-693A, supplement to: Mutterlose, Jörg; Wise, Sherwood W (1990): Lower Cretaceous nannofossil biostratigraphy of ODP Leg 113 Holes 692B and 693A, continental slope off East Antarctica, Weddell Sea. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 325-351
Organic-rich, moderately to sparsely nannofossiliferous Lower Cretaceous claystones ("black shales") were cored at two Ocean Drilling Program Leg 113 sites on the continental slope of East Antarctica off Dronning Maud Land. A 39 m section at Site 692 yielded a Neocomian assemblage of limit...
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1990
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ftdatacite:10.1594/pangaea.746421 2023-05-15T13:47:34+02:00 Lower Cretaceous nannofossils of ODP Holes 113-682B and 113-693A, supplement to: Mutterlose, Jörg; Wise, Sherwood W (1990): Lower Cretaceous nannofossil biostratigraphy of ODP Leg 113 Holes 692B and 693A, continental slope off East Antarctica, Weddell Sea. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 325-351 Mutterlose, Jörg Wise, Sherwood W 1990 application/zip https://dx.doi.org/10.1594/pangaea.746421 https://doi.pangaea.de/10.1594/PANGAEA.746421 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.2973/odp.proc.sr.113.143.1990 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 1990 ftdatacite https://doi.org/10.1594/pangaea.746421 https://doi.org/10.2973/odp.proc.sr.113.143.1990 2022-02-08T16:24:46Z Organic-rich, moderately to sparsely nannofossiliferous Lower Cretaceous claystones ("black shales") were cored at two Ocean Drilling Program Leg 113 sites on the continental slope of East Antarctica off Dronning Maud Land. A 39 m section at Site 692 yielded a Neocomian assemblage of limited diversity with rare Cyclagelosphaera deflandrei, Diadorhombus rectus, and Cruciellipsis cuvillieri, and is probably Valanginian in age. A 70-m section at Site 693 is assigned to the Rhagodiscus angustus Zone (late Aptian-early Albian in age). The latter zone is represented at DSDP sites on the Falkland Plateau, but equivalents to the Neocomian section are absent there, probably due to a disconformity. Watznaueria barnesae is the dominant species at both ODP sites, but it shares dominance with Repagulum parvidentatum at Site 693, where they total 70%-90% of the assemblage; their dominance is attributed to a paleogeographic setting within a restricted basin rather than to postdepositional dissolution of other species. The evolutionary development of this restricted basin and its eventual ventilation in early Albian times is discussed in terms of the regional stratigraphy and the breakup and dispersal of southwestern Gondwanaland. One new species, Corollithion covingtonii, is described. Article in Journal/Newspaper Antarc* Antarctica Dronning Maud Land East Antarctica Weddell Sea DataCite Metadata Store (German National Library of Science and Technology) Dronning Maud Land East Antarctica Falkland Plateau ENVELOPE(-50.000,-50.000,-51.000,-51.000) Kennett ENVELOPE(-65.167,-65.167,-67.117,-67.117) Weddell Weddell Sea |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP Mutterlose, Jörg Wise, Sherwood W Lower Cretaceous nannofossils of ODP Holes 113-682B and 113-693A, supplement to: Mutterlose, Jörg; Wise, Sherwood W (1990): Lower Cretaceous nannofossil biostratigraphy of ODP Leg 113 Holes 692B and 693A, continental slope off East Antarctica, Weddell Sea. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 325-351 |
topic_facet |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP |
description |
Organic-rich, moderately to sparsely nannofossiliferous Lower Cretaceous claystones ("black shales") were cored at two Ocean Drilling Program Leg 113 sites on the continental slope of East Antarctica off Dronning Maud Land. A 39 m section at Site 692 yielded a Neocomian assemblage of limited diversity with rare Cyclagelosphaera deflandrei, Diadorhombus rectus, and Cruciellipsis cuvillieri, and is probably Valanginian in age. A 70-m section at Site 693 is assigned to the Rhagodiscus angustus Zone (late Aptian-early Albian in age). The latter zone is represented at DSDP sites on the Falkland Plateau, but equivalents to the Neocomian section are absent there, probably due to a disconformity. Watznaueria barnesae is the dominant species at both ODP sites, but it shares dominance with Repagulum parvidentatum at Site 693, where they total 70%-90% of the assemblage; their dominance is attributed to a paleogeographic setting within a restricted basin rather than to postdepositional dissolution of other species. The evolutionary development of this restricted basin and its eventual ventilation in early Albian times is discussed in terms of the regional stratigraphy and the breakup and dispersal of southwestern Gondwanaland. One new species, Corollithion covingtonii, is described. |
format |
Article in Journal/Newspaper |
author |
Mutterlose, Jörg Wise, Sherwood W |
author_facet |
Mutterlose, Jörg Wise, Sherwood W |
author_sort |
Mutterlose, Jörg |
title |
Lower Cretaceous nannofossils of ODP Holes 113-682B and 113-693A, supplement to: Mutterlose, Jörg; Wise, Sherwood W (1990): Lower Cretaceous nannofossil biostratigraphy of ODP Leg 113 Holes 692B and 693A, continental slope off East Antarctica, Weddell Sea. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 325-351 |
title_short |
Lower Cretaceous nannofossils of ODP Holes 113-682B and 113-693A, supplement to: Mutterlose, Jörg; Wise, Sherwood W (1990): Lower Cretaceous nannofossil biostratigraphy of ODP Leg 113 Holes 692B and 693A, continental slope off East Antarctica, Weddell Sea. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 325-351 |
title_full |
Lower Cretaceous nannofossils of ODP Holes 113-682B and 113-693A, supplement to: Mutterlose, Jörg; Wise, Sherwood W (1990): Lower Cretaceous nannofossil biostratigraphy of ODP Leg 113 Holes 692B and 693A, continental slope off East Antarctica, Weddell Sea. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 325-351 |
title_fullStr |
Lower Cretaceous nannofossils of ODP Holes 113-682B and 113-693A, supplement to: Mutterlose, Jörg; Wise, Sherwood W (1990): Lower Cretaceous nannofossil biostratigraphy of ODP Leg 113 Holes 692B and 693A, continental slope off East Antarctica, Weddell Sea. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 325-351 |
title_full_unstemmed |
Lower Cretaceous nannofossils of ODP Holes 113-682B and 113-693A, supplement to: Mutterlose, Jörg; Wise, Sherwood W (1990): Lower Cretaceous nannofossil biostratigraphy of ODP Leg 113 Holes 692B and 693A, continental slope off East Antarctica, Weddell Sea. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 325-351 |
title_sort |
lower cretaceous nannofossils of odp holes 113-682b and 113-693a, supplement to: mutterlose, jörg; wise, sherwood w (1990): lower cretaceous nannofossil biostratigraphy of odp leg 113 holes 692b and 693a, continental slope off east antarctica, weddell sea. in: barker, pf, kennett, jp; et al. (eds.), proceedings of the ocean drilling program, scientific results, college station, tx (ocean drilling program), 113, 325-351 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1990 |
url |
https://dx.doi.org/10.1594/pangaea.746421 https://doi.pangaea.de/10.1594/PANGAEA.746421 |
long_lat |
ENVELOPE(-50.000,-50.000,-51.000,-51.000) ENVELOPE(-65.167,-65.167,-67.117,-67.117) |
geographic |
Dronning Maud Land East Antarctica Falkland Plateau Kennett Weddell Weddell Sea |
geographic_facet |
Dronning Maud Land East Antarctica Falkland Plateau Kennett Weddell Weddell Sea |
genre |
Antarc* Antarctica Dronning Maud Land East Antarctica Weddell Sea |
genre_facet |
Antarc* Antarctica Dronning Maud Land East Antarctica Weddell Sea |
op_relation |
https://dx.doi.org/10.2973/odp.proc.sr.113.143.1990 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.746421 https://doi.org/10.2973/odp.proc.sr.113.143.1990 |
_version_ |
1766247319096786944 |