Sedimentary facies and clay mineralogy of ODP Site 105-646
The grain-size study and analyses of bulk sediment and clay mineral composition of samples collected from the dominant lithologies recovered at ODP Site 646, located on the northern flank of the Eirik Ridge (Labrador Sea), show variations indicating that contour-following currents, linked to Norwegi...
Main Authors: | , , |
---|---|
Format: | Other/Unknown Material |
Language: | English |
Published: |
PANGAEA
1989
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.745581 https://doi.org/10.1594/PANGAEA.745581 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.745581 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.745581 2024-09-15T18:17:14+00:00 Sedimentary facies and clay mineralogy of ODP Site 105-646 Cremer, Michel Maillet, Noelle Latouche, Claude LATITUDE: 58.209300 * LONGITUDE: -48.369100 * DATE/TIME START: 1985-10-03T05:45:00 * DATE/TIME END: 1985-10-13T21:01:00 1989 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.745581 https://doi.org/10.1594/PANGAEA.745581 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.745581 https://doi.org/10.1594/PANGAEA.745581 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Cremer, Michel; Maillet, Noelle; Latouche, Claude (1989): Analysis of sedimentary facies and clay mineralogy of the Neogene-Quaternary sediments in ODP Site 646, Labrador Sea. 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, 71-81, https://doi.org/10.2973/odp.proc.sr.105.114.1989 105-646A 105-646B DRILL Drilling/drill rig Joides Resolution Labrador Sea Leg105 Ocean Drilling Program ODP dataset publication series 1989 ftpangaea https://doi.org/10.1594/PANGAEA.74558110.2973/odp.proc.sr.105.114.1989 2024-07-24T02:31:20Z The grain-size study and analyses of bulk sediment and clay mineral composition of samples collected from the dominant lithologies recovered at ODP Site 646, located on the northern flank of the Eirik Ridge (Labrador Sea), show variations indicating that contour-following currents, linked to Norwegian Sea Overflow Water (NSOW), have controlled sedimentation since the early Pliocene. These currents were influential until the early Pleistocene, despite the onset of major ice-rafting at about 2.5 Ma. A major mineralogical change occurred during the late Miocene: a decrease in the smectite to illite and chlorite ratio and a decrease of the crystallinity of smectites. This change indicates a renewing of the source rocks, which could result from an important hydrological change at this time. This change also is depicted by grain-size data that suggest the bottom current influence should be set earlier than the Pliocene. Other/Unknown Material Labrador Sea Norwegian Sea PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-48.369100,-48.369100,58.209300,58.209300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
105-646A 105-646B DRILL Drilling/drill rig Joides Resolution Labrador Sea Leg105 Ocean Drilling Program ODP |
spellingShingle |
105-646A 105-646B DRILL Drilling/drill rig Joides Resolution Labrador Sea Leg105 Ocean Drilling Program ODP Cremer, Michel Maillet, Noelle Latouche, Claude Sedimentary facies and clay mineralogy of ODP Site 105-646 |
topic_facet |
105-646A 105-646B DRILL Drilling/drill rig Joides Resolution Labrador Sea Leg105 Ocean Drilling Program ODP |
description |
The grain-size study and analyses of bulk sediment and clay mineral composition of samples collected from the dominant lithologies recovered at ODP Site 646, located on the northern flank of the Eirik Ridge (Labrador Sea), show variations indicating that contour-following currents, linked to Norwegian Sea Overflow Water (NSOW), have controlled sedimentation since the early Pliocene. These currents were influential until the early Pleistocene, despite the onset of major ice-rafting at about 2.5 Ma. A major mineralogical change occurred during the late Miocene: a decrease in the smectite to illite and chlorite ratio and a decrease of the crystallinity of smectites. This change indicates a renewing of the source rocks, which could result from an important hydrological change at this time. This change also is depicted by grain-size data that suggest the bottom current influence should be set earlier than the Pliocene. |
format |
Other/Unknown Material |
author |
Cremer, Michel Maillet, Noelle Latouche, Claude |
author_facet |
Cremer, Michel Maillet, Noelle Latouche, Claude |
author_sort |
Cremer, Michel |
title |
Sedimentary facies and clay mineralogy of ODP Site 105-646 |
title_short |
Sedimentary facies and clay mineralogy of ODP Site 105-646 |
title_full |
Sedimentary facies and clay mineralogy of ODP Site 105-646 |
title_fullStr |
Sedimentary facies and clay mineralogy of ODP Site 105-646 |
title_full_unstemmed |
Sedimentary facies and clay mineralogy of ODP Site 105-646 |
title_sort |
sedimentary facies and clay mineralogy of odp site 105-646 |
publisher |
PANGAEA |
publishDate |
1989 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.745581 https://doi.org/10.1594/PANGAEA.745581 |
op_coverage |
LATITUDE: 58.209300 * LONGITUDE: -48.369100 * DATE/TIME START: 1985-10-03T05:45:00 * DATE/TIME END: 1985-10-13T21:01:00 |
long_lat |
ENVELOPE(-48.369100,-48.369100,58.209300,58.209300) |
genre |
Labrador Sea Norwegian Sea |
genre_facet |
Labrador Sea Norwegian Sea |
op_source |
Supplement to: Cremer, Michel; Maillet, Noelle; Latouche, Claude (1989): Analysis of sedimentary facies and clay mineralogy of the Neogene-Quaternary sediments in ODP Site 646, Labrador Sea. 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, 71-81, https://doi.org/10.2973/odp.proc.sr.105.114.1989 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.745581 https://doi.org/10.1594/PANGAEA.745581 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.74558110.2973/odp.proc.sr.105.114.1989 |
_version_ |
1810455238357811200 |