Neogene planktonic foraminifera of DSDP Leg 41 holes
During Leg 41 Neogene sediments were recovered from five sites off northwest Africa. On the Sierra Leone Rise (Site 366), Neogene sediments consist of nanno oozes, nanno chalk, and calcareous clays 230 meters thick, resting conformably on the late Oligocene sediments. The common succession of zones...
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1978
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.758432 https://doi.org/10.1594/PANGAEA.758432 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.758432 2023-05-15T17:32:34+02:00 Neogene planktonic foraminifera of DSDP Leg 41 holes Krasheninnikov, Valery A Pflaumann, Uwe MEDIAN LATITUDE: 12.649500 * MEDIAN LONGITUDE: -18.233767 * SOUTH-BOUND LATITUDE: 5.678000 * WEST-BOUND LONGITUDE: -19.851300 * NORTH-BOUND LATITUDE: 26.592500 * EAST-BOUND LONGITUDE: -14.998700 * DATE/TIME START: 1975-02-22T00:00:00 * DATE/TIME END: 1975-03-23T00:00:00 1978-03-21 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.758432 https://doi.org/10.1594/PANGAEA.758432 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.758432 https://doi.org/10.1594/PANGAEA.758432 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Krasheninnikov, Valery A; Pflaumann, Uwe (1978): Zonal stratigraphy of Neogene deposits of the eastern part of the Atlantic Ocean by means of planktonic foraminifers, Leg 41 Deep Sea Drilling Project. In: Lancelot, Y; Seibold, E; Gardner, JV; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Government Print Office), 41, 613-657, https://doi.org/10.2973/dsdp.proc.41.112.1978 41-366A 41-369A Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg41 North Atlantic/CONT RISE North Atlantic/CONT SLOPE Dataset 1978 ftpangaea https://doi.org/10.1594/PANGAEA.758432 https://doi.org/10.2973/dsdp.proc.41.112.1978 2023-01-20T07:32:06Z During Leg 41 Neogene sediments were recovered from five sites off northwest Africa. On the Sierra Leone Rise (Site 366), Neogene sediments consist of nanno oozes, nanno chalk, and calcareous clays 230 meters thick, resting conformably on the late Oligocene sediments. The common succession of zones occurs with two hiatuses. The lower gap corresponds to an interval around the lower/middle Miocene boundary (the Praeorbulina glomerosa and Orbulina suturalis-Globorotalia peri-pheroronda zones are absent) and the upper gap coincides with an interval around the middle/upper Miocene boundary (the Sphaeroidinellopsis sub-dehiscens-GIobigerina druryi, Globigerina nepenthes-Globorotalia siakensis and Globorotalia conlinuosa zones are missing). In the Cape Verde Basin (Site 367) deep-water Neogene turbidites (about 200-250 m thick) contain poor fauna of redeposited and sorted Cretaceous, Eocene, Oligocene, and Neogene species. On the Cape Verde Rise (Site 368) the Neogene section starts with slightly calcareous and non-calcareous clays with poor planktonic foraminifers of the lower Miocene. Later on this area was uplifted and clayey sediments have been replaced upsection in order by more shallow-water clayey nanno and nanno-foraminifer oozes and marls and pure calcareous oozes. In the middle Miocene, planktonic foraminifers are still not diverse, but since the level of the Globigerina nepenthes-Globorotalia siakensis Zone, almost all Neogene zones have been traced. The minimum thickness of the Neogene sediments is about 230 meters. On the continental slope off Spanish Sahara (Site 369) monotonous calcareous pelagic sediments of Neogene age (164 m thick) overlie the late Oligocene comformably, or with a small time gap. A set of zones beginning from the Globigerinoides primordis-Globorotaiia kugleri Zone up to the Globorotalia fohsi fohsi Zone has been revealed with a gap corresponding to the Globigerinita stainforthi and the Globigerinatella insueta-Globigerinoides irilobus zones. Above that follow sediments with ... Dataset North Atlantic Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-19.851300,-14.998700,26.592500,5.678000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
41-366A 41-369A Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg41 North Atlantic/CONT RISE North Atlantic/CONT SLOPE |
spellingShingle |
41-366A 41-369A Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg41 North Atlantic/CONT RISE North Atlantic/CONT SLOPE Krasheninnikov, Valery A Pflaumann, Uwe Neogene planktonic foraminifera of DSDP Leg 41 holes |
topic_facet |
41-366A 41-369A Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg41 North Atlantic/CONT RISE North Atlantic/CONT SLOPE |
description |
During Leg 41 Neogene sediments were recovered from five sites off northwest Africa. On the Sierra Leone Rise (Site 366), Neogene sediments consist of nanno oozes, nanno chalk, and calcareous clays 230 meters thick, resting conformably on the late Oligocene sediments. The common succession of zones occurs with two hiatuses. The lower gap corresponds to an interval around the lower/middle Miocene boundary (the Praeorbulina glomerosa and Orbulina suturalis-Globorotalia peri-pheroronda zones are absent) and the upper gap coincides with an interval around the middle/upper Miocene boundary (the Sphaeroidinellopsis sub-dehiscens-GIobigerina druryi, Globigerina nepenthes-Globorotalia siakensis and Globorotalia conlinuosa zones are missing). In the Cape Verde Basin (Site 367) deep-water Neogene turbidites (about 200-250 m thick) contain poor fauna of redeposited and sorted Cretaceous, Eocene, Oligocene, and Neogene species. On the Cape Verde Rise (Site 368) the Neogene section starts with slightly calcareous and non-calcareous clays with poor planktonic foraminifers of the lower Miocene. Later on this area was uplifted and clayey sediments have been replaced upsection in order by more shallow-water clayey nanno and nanno-foraminifer oozes and marls and pure calcareous oozes. In the middle Miocene, planktonic foraminifers are still not diverse, but since the level of the Globigerina nepenthes-Globorotalia siakensis Zone, almost all Neogene zones have been traced. The minimum thickness of the Neogene sediments is about 230 meters. On the continental slope off Spanish Sahara (Site 369) monotonous calcareous pelagic sediments of Neogene age (164 m thick) overlie the late Oligocene comformably, or with a small time gap. A set of zones beginning from the Globigerinoides primordis-Globorotaiia kugleri Zone up to the Globorotalia fohsi fohsi Zone has been revealed with a gap corresponding to the Globigerinita stainforthi and the Globigerinatella insueta-Globigerinoides irilobus zones. Above that follow sediments with ... |
format |
Dataset |
author |
Krasheninnikov, Valery A Pflaumann, Uwe |
author_facet |
Krasheninnikov, Valery A Pflaumann, Uwe |
author_sort |
Krasheninnikov, Valery A |
title |
Neogene planktonic foraminifera of DSDP Leg 41 holes |
title_short |
Neogene planktonic foraminifera of DSDP Leg 41 holes |
title_full |
Neogene planktonic foraminifera of DSDP Leg 41 holes |
title_fullStr |
Neogene planktonic foraminifera of DSDP Leg 41 holes |
title_full_unstemmed |
Neogene planktonic foraminifera of DSDP Leg 41 holes |
title_sort |
neogene planktonic foraminifera of dsdp leg 41 holes |
publisher |
PANGAEA |
publishDate |
1978 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.758432 https://doi.org/10.1594/PANGAEA.758432 |
op_coverage |
MEDIAN LATITUDE: 12.649500 * MEDIAN LONGITUDE: -18.233767 * SOUTH-BOUND LATITUDE: 5.678000 * WEST-BOUND LONGITUDE: -19.851300 * NORTH-BOUND LATITUDE: 26.592500 * EAST-BOUND LONGITUDE: -14.998700 * DATE/TIME START: 1975-02-22T00:00:00 * DATE/TIME END: 1975-03-23T00:00:00 |
long_lat |
ENVELOPE(-19.851300,-14.998700,26.592500,5.678000) |
genre |
North Atlantic Planktonic foraminifera |
genre_facet |
North Atlantic Planktonic foraminifera |
op_source |
Supplement to: Krasheninnikov, Valery A; Pflaumann, Uwe (1978): Zonal stratigraphy of Neogene deposits of the eastern part of the Atlantic Ocean by means of planktonic foraminifers, Leg 41 Deep Sea Drilling Project. In: Lancelot, Y; Seibold, E; Gardner, JV; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Government Print Office), 41, 613-657, https://doi.org/10.2973/dsdp.proc.41.112.1978 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.758432 https://doi.org/10.1594/PANGAEA.758432 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.758432 https://doi.org/10.2973/dsdp.proc.41.112.1978 |
_version_ |
1766130748499165184 |