(Table 1) Age and sedimentation rates of Pleistocene/Holocene sequences at DSDP Sites 86-580 and 94-611
The recovery from the North Atlantic (Site 611) of a continuous Pleistocene sedimentary record with a siliceous microfaunal component made it possible to compare the high-latitude abundance pattern of the radiolarian species Cycladophora davisiana in the Atlantic with that produced from analyses of...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.788586 2023-05-15T17:27:50+02:00 (Table 1) Age and sedimentation rates of Pleistocene/Holocene sequences at DSDP Sites 86-580 and 94-611 Morley, Joseph J MEDIAN LATITUDE: 47.231950 * MEDIAN LONGITUDE: -118.168133 * SOUTH-BOUND LATITUDE: 41.624500 * WEST-BOUND LONGITUDE: 153.976300 * NORTH-BOUND LATITUDE: 52.839400 * EAST-BOUND LONGITUDE: -30.312567 * DATE/TIME START: 1982-06-06T00:00:00 * DATE/TIME END: 1983-08-06T00:00:00 * MINIMUM DEPTH, sediment/rock: 20.13 m * MAXIMUM DEPTH, sediment/rock: 82.33 m 1987-09-14 text/tab-separated-values, 24 data points https://doi.pangaea.de/10.1594/PANGAEA.788586 https://doi.org/10.1594/PANGAEA.788586 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.788586 https://doi.org/10.1594/PANGAEA.788586 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Morley, Joseph J (1987): Comparison of the Pleistocene records of the radiolarian Cycladophora davisiana at high-latitude sites of the Deep Sea Drilling Project. In: Ruddiman, WF; Kidd, RB; Thomas, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 94, 889-894, https://doi.org/10.2973/dsdp.proc.94.124.1987 86-580_Site 94-611_Site Age model Boundary description COMPCORE Composite Core Deep Sea Drilling Project DEPTH sediment/rock DSDP Event label Glomar Challenger Leg86 Leg94 North Atlantic/RIDGE North Pacific Sedimentation rate Dataset 1987 ftpangaea https://doi.org/10.1594/PANGAEA.788586 https://doi.org/10.2973/dsdp.proc.94.124.1987 2023-01-20T08:55:15Z The recovery from the North Atlantic (Site 611) of a continuous Pleistocene sedimentary record with a siliceous microfaunal component made it possible to compare the high-latitude abundance pattern of the radiolarian species Cycladophora davisiana in the Atlantic with that produced from analyses of a high-latitude record (Site 580) from the northwest Pacific. Previous studies had shown that the late Pleistocene (0-0.45 Ma) abundance variations of this species in these high-latitude regions were similar. Cycladophora davisiana maxima in the North Atlantic record reach abundance levels three to four times higher than C. davisiana maxima registered in sediments from the northwest Pacific site. This difference in magnitude of abundance peaks is most likely an effect of the more northerly location of Site 611 (53°N) compared with that of Site 580 (42°N), since high-latitude time-slice studies have shown a direct relationship between increasing latitude and C. davisiana abundance. Discontinuous preservation of radiolarians in sediments from North Atlantic Site 611 allows only tentative correlation of the North Atlantic and northwest Pacific C. davisiana abundance curves. These correlations are confined to those portions of the cores where ages are tightly constrained by magnetic boundaries, and to intervals with comparable sedimentation rates. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Pacific ENVELOPE(153.976300,-30.312567,52.839400,41.624500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
86-580_Site 94-611_Site Age model Boundary description COMPCORE Composite Core Deep Sea Drilling Project DEPTH sediment/rock DSDP Event label Glomar Challenger Leg86 Leg94 North Atlantic/RIDGE North Pacific Sedimentation rate |
spellingShingle |
86-580_Site 94-611_Site Age model Boundary description COMPCORE Composite Core Deep Sea Drilling Project DEPTH sediment/rock DSDP Event label Glomar Challenger Leg86 Leg94 North Atlantic/RIDGE North Pacific Sedimentation rate Morley, Joseph J (Table 1) Age and sedimentation rates of Pleistocene/Holocene sequences at DSDP Sites 86-580 and 94-611 |
topic_facet |
86-580_Site 94-611_Site Age model Boundary description COMPCORE Composite Core Deep Sea Drilling Project DEPTH sediment/rock DSDP Event label Glomar Challenger Leg86 Leg94 North Atlantic/RIDGE North Pacific Sedimentation rate |
description |
The recovery from the North Atlantic (Site 611) of a continuous Pleistocene sedimentary record with a siliceous microfaunal component made it possible to compare the high-latitude abundance pattern of the radiolarian species Cycladophora davisiana in the Atlantic with that produced from analyses of a high-latitude record (Site 580) from the northwest Pacific. Previous studies had shown that the late Pleistocene (0-0.45 Ma) abundance variations of this species in these high-latitude regions were similar. Cycladophora davisiana maxima in the North Atlantic record reach abundance levels three to four times higher than C. davisiana maxima registered in sediments from the northwest Pacific site. This difference in magnitude of abundance peaks is most likely an effect of the more northerly location of Site 611 (53°N) compared with that of Site 580 (42°N), since high-latitude time-slice studies have shown a direct relationship between increasing latitude and C. davisiana abundance. Discontinuous preservation of radiolarians in sediments from North Atlantic Site 611 allows only tentative correlation of the North Atlantic and northwest Pacific C. davisiana abundance curves. These correlations are confined to those portions of the cores where ages are tightly constrained by magnetic boundaries, and to intervals with comparable sedimentation rates. |
format |
Dataset |
author |
Morley, Joseph J |
author_facet |
Morley, Joseph J |
author_sort |
Morley, Joseph J |
title |
(Table 1) Age and sedimentation rates of Pleistocene/Holocene sequences at DSDP Sites 86-580 and 94-611 |
title_short |
(Table 1) Age and sedimentation rates of Pleistocene/Holocene sequences at DSDP Sites 86-580 and 94-611 |
title_full |
(Table 1) Age and sedimentation rates of Pleistocene/Holocene sequences at DSDP Sites 86-580 and 94-611 |
title_fullStr |
(Table 1) Age and sedimentation rates of Pleistocene/Holocene sequences at DSDP Sites 86-580 and 94-611 |
title_full_unstemmed |
(Table 1) Age and sedimentation rates of Pleistocene/Holocene sequences at DSDP Sites 86-580 and 94-611 |
title_sort |
(table 1) age and sedimentation rates of pleistocene/holocene sequences at dsdp sites 86-580 and 94-611 |
publisher |
PANGAEA |
publishDate |
1987 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.788586 https://doi.org/10.1594/PANGAEA.788586 |
op_coverage |
MEDIAN LATITUDE: 47.231950 * MEDIAN LONGITUDE: -118.168133 * SOUTH-BOUND LATITUDE: 41.624500 * WEST-BOUND LONGITUDE: 153.976300 * NORTH-BOUND LATITUDE: 52.839400 * EAST-BOUND LONGITUDE: -30.312567 * DATE/TIME START: 1982-06-06T00:00:00 * DATE/TIME END: 1983-08-06T00:00:00 * MINIMUM DEPTH, sediment/rock: 20.13 m * MAXIMUM DEPTH, sediment/rock: 82.33 m |
long_lat |
ENVELOPE(153.976300,-30.312567,52.839400,41.624500) |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Morley, Joseph J (1987): Comparison of the Pleistocene records of the radiolarian Cycladophora davisiana at high-latitude sites of the Deep Sea Drilling Project. In: Ruddiman, WF; Kidd, RB; Thomas, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 94, 889-894, https://doi.org/10.2973/dsdp.proc.94.124.1987 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.788586 https://doi.org/10.1594/PANGAEA.788586 |
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.788586 https://doi.org/10.2973/dsdp.proc.94.124.1987 |
_version_ |
1766120147868712960 |