(Table 1) Composition of ice-rafted debris and quartz grain concentration at DSDP Sites 71-513 and 71-514

The surficial few meters of sediment at Sites 511 and 512 on Maurice Ewing Bank consist of a lag deposit of icerafted sands and gravels ranging from lower Pliocene to Quaternary in age. The sediments contain up to 62% angular to subangular gravel of mixed lithology. Significant volumes of sand- and...

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Bibliographic Details
Main Author: Bornhold, Brian D
Format: Dataset
Language:English
Published: PANGAEA 1983
Subjects:
71-513
71-513A
71-514
Counting >250 µm fraction
Deep Sea Drilling Project
DEPTH
sediment/rock
DRILL
Drilling/drill rig
DSDP
DSDP/ODP/IODP sample designation
Elevation of event
Event label
Feldspar
Glomar Challenger
Identification
Latitude of event
Leg71
Longitude of event
Minerals
Quartz
Rock fragments
Sample code/label
South Atlantic
South Atlantic/FLANK
Patagonia
West Antarctica
Argentine
Maurice
Ewing
Maurice Ewing Bank
Antarc*
Antarctica
Ice Sheet
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.813397
https://doi.org/10.1594/PANGAEA.813397
id ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.813397
record_format openpolar
spelling ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.813397 2023-05-15T13:49:51+02:00 (Table 1) Composition of ice-rafted debris and quartz grain concentration at DSDP Sites 71-513 and 71-514 Bornhold, Brian D MEDIAN LATITUDE: -47.070867 * MEDIAN LONGITUDE: -25.378333 * SOUTH-BOUND LATITUDE: -47.583200 * WEST-BOUND LONGITUDE: -26.855000 * NORTH-BOUND LATITUDE: -46.046200 * EAST-BOUND LONGITUDE: -24.640000 * DATE/TIME START: 1980-02-02T00:00:00 * DATE/TIME END: 1980-02-08T00:00:00 * MINIMUM DEPTH, sediment/rock: 1.18 m * MAXIMUM DEPTH, sediment/rock: 138.20 m 1983-05-29 text/tab-separated-values, 91 data points https://doi.pangaea.de/10.1594/PANGAEA.813397 https://doi.org/10.1594/PANGAEA.813397 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.813397 https://doi.org/10.1594/PANGAEA.813397 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Bornhold, Brian D (1983): Ice-rafted debris in sediments from Leg 71, Southwest Atlantic Ocean. In: Ludwig, WJ; Krasheninnikov, VA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 71, 307-316, https://doi.org/10.2973/dsdp.proc.71.110.1983 71-513 71-513A 71-514 Counting >250 µm fraction Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Feldspar Glomar Challenger Identification Latitude of event Leg71 Longitude of event Minerals Quartz Rock fragments Sample code/label South Atlantic South Atlantic/FLANK Dataset 1983 ftpangaea https://doi.org/10.1594/PANGAEA.813397 https://doi.org/10.2973/dsdp.proc.71.110.1983 2023-01-20T09:01:11Z The surficial few meters of sediment at Sites 511 and 512 on Maurice Ewing Bank consist of a lag deposit of icerafted sands and gravels ranging from lower Pliocene to Quaternary in age. The sediments contain up to 62% angular to subangular gravel of mixed lithology. Significant volumes of sand- and gravel-sized ice-rafted detritus (IRD) first reached the Falkland (Malvinas) Plateau and southeasternmost Argentine Basin in the late Miocene (6.9 Ma) in response to the rapid buildup and grounding of the ice sheet in West Antarctica. IRD accumulation rates remained relatively low until 4.15 Ma, after which they increased markedly. Peaks of IRD accumulation at Sites 513 and 514 can, in most instances, be correlated directly with colder climates in Antarctica and southern Patagonia. Dataset Antarc* Antarctica Ice Sheet West Antarctica PANGAEA - Data Publisher for Earth & Environmental Science Patagonia West Antarctica Argentine Maurice ENVELOPE(-55.817,-55.817,-63.133,-63.133) Ewing ENVELOPE(-61.257,-61.257,-69.924,-69.924) Maurice Ewing Bank ENVELOPE(-43.500,-43.500,-50.667,-50.667) ENVELOPE(-26.855000,-24.640000,-46.046200,-47.583200)
institution Open Polar
collection PANGAEA - Data Publisher for Earth & Environmental Science
op_collection_id ftpangaea
language English
topic 71-513
71-513A
71-514
Counting >250 µm fraction
Deep Sea Drilling Project
DEPTH
sediment/rock
DRILL
Drilling/drill rig
DSDP
DSDP/ODP/IODP sample designation
Elevation of event
Event label
Feldspar
Glomar Challenger
Identification
Latitude of event
Leg71
Longitude of event
Minerals
Quartz
Rock fragments
Sample code/label
South Atlantic
South Atlantic/FLANK
spellingShingle 71-513
71-513A
71-514
Counting >250 µm fraction
Deep Sea Drilling Project
DEPTH
sediment/rock
DRILL
Drilling/drill rig
DSDP
DSDP/ODP/IODP sample designation
Elevation of event
Event label
Feldspar
Glomar Challenger
Identification
Latitude of event
Leg71
Longitude of event
Minerals
Quartz
Rock fragments
Sample code/label
South Atlantic
South Atlantic/FLANK
Bornhold, Brian D
(Table 1) Composition of ice-rafted debris and quartz grain concentration at DSDP Sites 71-513 and 71-514
topic_facet 71-513
71-513A
71-514
Counting >250 µm fraction
Deep Sea Drilling Project
DEPTH
sediment/rock
DRILL
Drilling/drill rig
DSDP
DSDP/ODP/IODP sample designation
Elevation of event
Event label
Feldspar
Glomar Challenger
Identification
Latitude of event
Leg71
Longitude of event
Minerals
Quartz
Rock fragments
Sample code/label
South Atlantic
South Atlantic/FLANK
description The surficial few meters of sediment at Sites 511 and 512 on Maurice Ewing Bank consist of a lag deposit of icerafted sands and gravels ranging from lower Pliocene to Quaternary in age. The sediments contain up to 62% angular to subangular gravel of mixed lithology. Significant volumes of sand- and gravel-sized ice-rafted detritus (IRD) first reached the Falkland (Malvinas) Plateau and southeasternmost Argentine Basin in the late Miocene (6.9 Ma) in response to the rapid buildup and grounding of the ice sheet in West Antarctica. IRD accumulation rates remained relatively low until 4.15 Ma, after which they increased markedly. Peaks of IRD accumulation at Sites 513 and 514 can, in most instances, be correlated directly with colder climates in Antarctica and southern Patagonia.
format Dataset
author Bornhold, Brian D
author_facet Bornhold, Brian D
author_sort Bornhold, Brian D
title (Table 1) Composition of ice-rafted debris and quartz grain concentration at DSDP Sites 71-513 and 71-514
title_short (Table 1) Composition of ice-rafted debris and quartz grain concentration at DSDP Sites 71-513 and 71-514
title_full (Table 1) Composition of ice-rafted debris and quartz grain concentration at DSDP Sites 71-513 and 71-514
title_fullStr (Table 1) Composition of ice-rafted debris and quartz grain concentration at DSDP Sites 71-513 and 71-514
title_full_unstemmed (Table 1) Composition of ice-rafted debris and quartz grain concentration at DSDP Sites 71-513 and 71-514
title_sort (table 1) composition of ice-rafted debris and quartz grain concentration at dsdp sites 71-513 and 71-514
publisher PANGAEA
publishDate 1983
url https://doi.pangaea.de/10.1594/PANGAEA.813397
https://doi.org/10.1594/PANGAEA.813397
op_coverage MEDIAN LATITUDE: -47.070867 * MEDIAN LONGITUDE: -25.378333 * SOUTH-BOUND LATITUDE: -47.583200 * WEST-BOUND LONGITUDE: -26.855000 * NORTH-BOUND LATITUDE: -46.046200 * EAST-BOUND LONGITUDE: -24.640000 * DATE/TIME START: 1980-02-02T00:00:00 * DATE/TIME END: 1980-02-08T00:00:00 * MINIMUM DEPTH, sediment/rock: 1.18 m * MAXIMUM DEPTH, sediment/rock: 138.20 m
long_lat ENVELOPE(-55.817,-55.817,-63.133,-63.133)
ENVELOPE(-61.257,-61.257,-69.924,-69.924)
ENVELOPE(-43.500,-43.500,-50.667,-50.667)
ENVELOPE(-26.855000,-24.640000,-46.046200,-47.583200)
geographic Patagonia
West Antarctica
Argentine
Maurice
Ewing
Maurice Ewing Bank
geographic_facet Patagonia
West Antarctica
Argentine
Maurice
Ewing
Maurice Ewing Bank
genre Antarc*
Antarctica
Ice Sheet
West Antarctica
genre_facet Antarc*
Antarctica
Ice Sheet
West Antarctica
op_source Supplement to: Bornhold, Brian D (1983): Ice-rafted debris in sediments from Leg 71, Southwest Atlantic Ocean. In: Ludwig, WJ; Krasheninnikov, VA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 71, 307-316, https://doi.org/10.2973/dsdp.proc.71.110.1983
op_relation https://doi.pangaea.de/10.1594/PANGAEA.813397
https://doi.org/10.1594/PANGAEA.813397
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.813397
https://doi.org/10.2973/dsdp.proc.71.110.1983
_version_ 1766252401369546752

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