Magnetostratigraphy and biostratigraphy of ODP Leg 105 sites and DSDP Hole 12-112
During Ocean Drilling Program (ODP) Leg 105, three sites (Sites 645 through 647) were drilled in Baffin Bay and the Labrador Sea to examine the tectonic evolution and the climatic and oceanic histories of this region. Biostratigraphic and magnetostratigraphic results vary at each site, while stratig...
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Format: | Dataset |
Language: | English |
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PANGAEA
1989
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.745399 https://doi.org/10.1594/PANGAEA.745399 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.745399 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
105-646 105-647 12-112 COMPCORE Composite Core Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Joides Resolution Labrador Sea Leg105 Leg12 North Atlantic North Atlantic Ocean Ocean Drilling Program ODP |
spellingShingle |
105-646 105-647 12-112 COMPCORE Composite Core Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Joides Resolution Labrador Sea Leg105 Leg12 North Atlantic North Atlantic Ocean Ocean Drilling Program ODP Baldauf, Jack G Clement, Bradford M Aksu, Ali E de Vernal, Anne Firth, John V Hall, Frank R Head, Martin J Jarrard, Richard D Kaminski, Michael Anthony Lazarus, David B Monjanel, Anne-Lise Berggren, William A Gradstein, Felix M Knüttel, Stephen Mudie, Peta J Russell, Merlin D Jr Magnetostratigraphy and biostratigraphy of ODP Leg 105 sites and DSDP Hole 12-112 |
topic_facet |
105-646 105-647 12-112 COMPCORE Composite Core Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Joides Resolution Labrador Sea Leg105 Leg12 North Atlantic North Atlantic Ocean Ocean Drilling Program ODP |
description |
During Ocean Drilling Program (ODP) Leg 105, three sites (Sites 645 through 647) were drilled in Baffin Bay and the Labrador Sea to examine the tectonic evolution and the climatic and oceanic histories of this region. Biostratigraphic and magnetostratigraphic results vary at each site, while stratigraphic resolution depends on the limited abundance of marker species and the completeness of the paleomagnetic record. Because of the paucity of planktonic microfossils and the poor paleomagnetic record signatures, stratigraphic determinations at Site 645 often rely on defining minimum temporal constraints on specific samples or stratigraphic intervals. The completed stratigraphy indicates that the sedimentary sequence recovered at Site 645 is early Miocene to Holocene in age. The magnetostratigraphy and biostratigraphies are better defined at Sites 646 and 647 in the Labrador Sea. Site 646 generally contains a well-developed magnetostratigraphy and calcareous microfossil biostratigraphy. This biostratigraphy is based on calcareous nannofossils and planktonic foraminifers typical of the North Atlantic Ocean. Siliceous microfossils are also present at Site 646, but they are restricted to upper Pliocene through Holocene sediments. The stratigraphic sequence recovered at Site 646 is late Miocene to Holocene in age. Based primarily on the calcareous nannofossil stratigraphy, the sequence recovered at Site 647 consists of lower Eocene to lower Oligocene, lower Miocene, upper Miocene, and upper Pliocene through Holocene sediments. Three hiatuses are present in this sequence: the older hiatus separates lower Oligocene sediments from lower Miocene sediments, another hiatus separates lower Miocene sediments from upper Miocene sediments, and the youngest one separates upper Miocene from upper Pliocene sediments. A magnetostratigraphy is defined for the interval from the Gauss/Matuyama boundary through the Brunhes (Clement et al., this volume). Both planktonic foraminifers and siliceous microfossils have restricted occurrences. ... |
format |
Dataset |
author |
Baldauf, Jack G Clement, Bradford M Aksu, Ali E de Vernal, Anne Firth, John V Hall, Frank R Head, Martin J Jarrard, Richard D Kaminski, Michael Anthony Lazarus, David B Monjanel, Anne-Lise Berggren, William A Gradstein, Felix M Knüttel, Stephen Mudie, Peta J Russell, Merlin D Jr |
author_facet |
Baldauf, Jack G Clement, Bradford M Aksu, Ali E de Vernal, Anne Firth, John V Hall, Frank R Head, Martin J Jarrard, Richard D Kaminski, Michael Anthony Lazarus, David B Monjanel, Anne-Lise Berggren, William A Gradstein, Felix M Knüttel, Stephen Mudie, Peta J Russell, Merlin D Jr |
author_sort |
Baldauf, Jack G |
title |
Magnetostratigraphy and biostratigraphy of ODP Leg 105 sites and DSDP Hole 12-112 |
title_short |
Magnetostratigraphy and biostratigraphy of ODP Leg 105 sites and DSDP Hole 12-112 |
title_full |
Magnetostratigraphy and biostratigraphy of ODP Leg 105 sites and DSDP Hole 12-112 |
title_fullStr |
Magnetostratigraphy and biostratigraphy of ODP Leg 105 sites and DSDP Hole 12-112 |
title_full_unstemmed |
Magnetostratigraphy and biostratigraphy of ODP Leg 105 sites and DSDP Hole 12-112 |
title_sort |
magnetostratigraphy and biostratigraphy of odp leg 105 sites and dsdp hole 12-112 |
publisher |
PANGAEA |
publishDate |
1989 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.745399 https://doi.org/10.1594/PANGAEA.745399 |
op_coverage |
MEDIAN LATITUDE: 55.185767 * MEDIAN LONGITUDE: -46.745033 * SOUTH-BOUND LATITUDE: 53.331300 * WEST-BOUND LONGITUDE: -48.369100 * NORTH-BOUND LATITUDE: 58.209300 * EAST-BOUND LONGITUDE: -45.262000 * DATE/TIME START: 1970-06-29T00:00:00 * DATE/TIME END: 1985-10-25T00:00:00 |
long_lat |
ENVELOPE(-48.369100,-45.262000,58.209300,53.331300) |
geographic |
Baffin Bay |
geographic_facet |
Baffin Bay |
genre |
Baffin Bay Baffin Bay Baffin Labrador Sea North Atlantic |
genre_facet |
Baffin Bay Baffin Bay Baffin Labrador Sea North Atlantic |
op_source |
Supplement to: Baldauf, Jack G; Clement, Bradford M; Aksu, Ali E; de Vernal, Anne; Firth, John V; Hall, Frank R; Head, Martin J; Jarrard, Richard D; Kaminski, Michael Anthony; Lazarus, David B; Monjanel, Anne-Lise; Berggren, William A; Gradstein, Felix M; Knüttel, Stephen; Mudie, Peta J; Russell, Merlin D Jr (1989): Magnetostratigraphic and biostratigraphic synthesis of Ocean Drilling Program Leg 105: Labrador Sea and Baffin Bay. In: Srivastava, SP; Arthur, M; Clement, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 105, 935-956, https://doi.org/10.2973/odp.proc.sr.105.165.1989 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.745399 https://doi.org/10.1594/PANGAEA.745399 |
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.745399 https://doi.org/10.2973/odp.proc.sr.105.165.1989 |
_version_ |
1766365421377683456 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.745399 2023-05-15T15:35:07+02:00 Magnetostratigraphy and biostratigraphy of ODP Leg 105 sites and DSDP Hole 12-112 Baldauf, Jack G Clement, Bradford M Aksu, Ali E de Vernal, Anne Firth, John V Hall, Frank R Head, Martin J Jarrard, Richard D Kaminski, Michael Anthony Lazarus, David B Monjanel, Anne-Lise Berggren, William A Gradstein, Felix M Knüttel, Stephen Mudie, Peta J Russell, Merlin D Jr MEDIAN LATITUDE: 55.185767 * MEDIAN LONGITUDE: -46.745033 * SOUTH-BOUND LATITUDE: 53.331300 * WEST-BOUND LONGITUDE: -48.369100 * NORTH-BOUND LATITUDE: 58.209300 * EAST-BOUND LONGITUDE: -45.262000 * DATE/TIME START: 1970-06-29T00:00:00 * DATE/TIME END: 1985-10-25T00:00:00 1989-09-21 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.745399 https://doi.org/10.1594/PANGAEA.745399 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.745399 https://doi.org/10.1594/PANGAEA.745399 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Baldauf, Jack G; Clement, Bradford M; Aksu, Ali E; de Vernal, Anne; Firth, John V; Hall, Frank R; Head, Martin J; Jarrard, Richard D; Kaminski, Michael Anthony; Lazarus, David B; Monjanel, Anne-Lise; Berggren, William A; Gradstein, Felix M; Knüttel, Stephen; Mudie, Peta J; Russell, Merlin D Jr (1989): Magnetostratigraphic and biostratigraphic synthesis of Ocean Drilling Program Leg 105: Labrador Sea and Baffin Bay. In: Srivastava, SP; Arthur, M; Clement, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 105, 935-956, https://doi.org/10.2973/odp.proc.sr.105.165.1989 105-646 105-647 12-112 COMPCORE Composite Core Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Joides Resolution Labrador Sea Leg105 Leg12 North Atlantic North Atlantic Ocean Ocean Drilling Program ODP Dataset 1989 ftpangaea https://doi.org/10.1594/PANGAEA.745399 https://doi.org/10.2973/odp.proc.sr.105.165.1989 2023-01-20T07:31:54Z During Ocean Drilling Program (ODP) Leg 105, three sites (Sites 645 through 647) were drilled in Baffin Bay and the Labrador Sea to examine the tectonic evolution and the climatic and oceanic histories of this region. Biostratigraphic and magnetostratigraphic results vary at each site, while stratigraphic resolution depends on the limited abundance of marker species and the completeness of the paleomagnetic record. Because of the paucity of planktonic microfossils and the poor paleomagnetic record signatures, stratigraphic determinations at Site 645 often rely on defining minimum temporal constraints on specific samples or stratigraphic intervals. The completed stratigraphy indicates that the sedimentary sequence recovered at Site 645 is early Miocene to Holocene in age. The magnetostratigraphy and biostratigraphies are better defined at Sites 646 and 647 in the Labrador Sea. Site 646 generally contains a well-developed magnetostratigraphy and calcareous microfossil biostratigraphy. This biostratigraphy is based on calcareous nannofossils and planktonic foraminifers typical of the North Atlantic Ocean. Siliceous microfossils are also present at Site 646, but they are restricted to upper Pliocene through Holocene sediments. The stratigraphic sequence recovered at Site 646 is late Miocene to Holocene in age. Based primarily on the calcareous nannofossil stratigraphy, the sequence recovered at Site 647 consists of lower Eocene to lower Oligocene, lower Miocene, upper Miocene, and upper Pliocene through Holocene sediments. Three hiatuses are present in this sequence: the older hiatus separates lower Oligocene sediments from lower Miocene sediments, another hiatus separates lower Miocene sediments from upper Miocene sediments, and the youngest one separates upper Miocene from upper Pliocene sediments. A magnetostratigraphy is defined for the interval from the Gauss/Matuyama boundary through the Brunhes (Clement et al., this volume). Both planktonic foraminifers and siliceous microfossils have restricted occurrences. ... Dataset Baffin Bay Baffin Bay Baffin Labrador Sea North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Baffin Bay ENVELOPE(-48.369100,-45.262000,58.209300,53.331300) |