Quartz grain microtextures of sediments from ODP Hole 188-1166A (Table 1)
This paper presents the results of the scanning electron microscopic (SEM) analysis of quartz grains from a selection of samples at Site 1166. Ocean Drilling Program Leg 188 drilled Site 1166 on the Prydz Bay continental shelf, Antarctica, to document onset and fluctuations of East-Antarctic glaciat...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.705274 2023-05-15T13:30:54+02:00 Quartz grain microtextures of sediments from ODP Hole 188-1166A (Table 1) Strand, Kari O Passchier, Sandra Näsi, Jari LATITUDE: -67.696160 * LONGITUDE: 74.786930 * DATE/TIME START: 2000-02-16T01:30:00 * DATE/TIME END: 2000-02-21T16:00:00 * MINIMUM DEPTH, sediment/rock: 2.75 m * MAXIMUM DEPTH, sediment/rock: 342.88 m 2003-10-08 text/tab-separated-values, 532 data points https://doi.pangaea.de/10.1594/PANGAEA.705274 https://doi.org/10.1594/PANGAEA.705274 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.705274 https://doi.org/10.1594/PANGAEA.705274 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Strand, Kari O; Passchier, Sandra; Näsi, Jari (2003): Implications of quartz grain microtextures for onset Eocene/Oligocene glaciation in Prydz Bay, ODP Site 1166, Antarctica. Palaeogeography, Palaeoclimatology, Palaeoecology, 198(1-2), 101-111, https://doi.org/10.1016/S0031-0182(03)00396-1 188-1166A DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Joides Resolution Leg188 Ocean Drilling Program ODP Prydz Bay Quartz surface texture Sample code/label Scanning electron microscope (SEM) Dataset 2003 ftpangaea https://doi.org/10.1594/PANGAEA.705274 https://doi.org/10.1016/S0031-0182(03)00396-1 2023-01-20T08:46:45Z This paper presents the results of the scanning electron microscopic (SEM) analysis of quartz grains from a selection of samples at Site 1166. Ocean Drilling Program Leg 188 drilled Site 1166 on the Prydz Bay continental shelf, Antarctica, to document onset and fluctuations of East-Antarctic glaciation. This site recovered Upper Pliocene-Holocene glacial sediments directly above Cretaceous through Lower Oligocene sediments recording the transition from preglacial to early glacial conditions. SEM analysis of quartz grains at Site 1166 was used to characterize the glacial and preglacial sediments by their diagnostic textures. Angular edges, edge abrasion as well as arcuate to straight steps, are the most frequent features in glacial deposits. The highest frequency of grains with round edges is present in Middle-Late Eocene fluvio-deltaic sands. However, angular outlines, fractured plates with subparallel linear fractures and edge abrasion indicating glacier influence are also present. Preglacial carbonaceous mudstone and laminated gray claystone show distinctive high relief quartz grains and some chemical weathering on grain surfaces. The results of the microtextural analysis of quartz grains are used to verify some critical periods of ice sheet evolution, such as the transition from the East Antarctic preglacial to glacial conditions on the continental shelf from Middle/Late Eocene to Late Eocene/Early Oligocene time. Dataset Antarc* Antarctic Antarctica Ice Sheet Prydz Bay PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Prydz Bay ENVELOPE(74.786930,74.786930,-67.696160,-67.696160) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
188-1166A DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Joides Resolution Leg188 Ocean Drilling Program ODP Prydz Bay Quartz surface texture Sample code/label Scanning electron microscope (SEM) |
spellingShingle |
188-1166A DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Joides Resolution Leg188 Ocean Drilling Program ODP Prydz Bay Quartz surface texture Sample code/label Scanning electron microscope (SEM) Strand, Kari O Passchier, Sandra Näsi, Jari Quartz grain microtextures of sediments from ODP Hole 188-1166A (Table 1) |
topic_facet |
188-1166A DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Joides Resolution Leg188 Ocean Drilling Program ODP Prydz Bay Quartz surface texture Sample code/label Scanning electron microscope (SEM) |
description |
This paper presents the results of the scanning electron microscopic (SEM) analysis of quartz grains from a selection of samples at Site 1166. Ocean Drilling Program Leg 188 drilled Site 1166 on the Prydz Bay continental shelf, Antarctica, to document onset and fluctuations of East-Antarctic glaciation. This site recovered Upper Pliocene-Holocene glacial sediments directly above Cretaceous through Lower Oligocene sediments recording the transition from preglacial to early glacial conditions. SEM analysis of quartz grains at Site 1166 was used to characterize the glacial and preglacial sediments by their diagnostic textures. Angular edges, edge abrasion as well as arcuate to straight steps, are the most frequent features in glacial deposits. The highest frequency of grains with round edges is present in Middle-Late Eocene fluvio-deltaic sands. However, angular outlines, fractured plates with subparallel linear fractures and edge abrasion indicating glacier influence are also present. Preglacial carbonaceous mudstone and laminated gray claystone show distinctive high relief quartz grains and some chemical weathering on grain surfaces. The results of the microtextural analysis of quartz grains are used to verify some critical periods of ice sheet evolution, such as the transition from the East Antarctic preglacial to glacial conditions on the continental shelf from Middle/Late Eocene to Late Eocene/Early Oligocene time. |
format |
Dataset |
author |
Strand, Kari O Passchier, Sandra Näsi, Jari |
author_facet |
Strand, Kari O Passchier, Sandra Näsi, Jari |
author_sort |
Strand, Kari O |
title |
Quartz grain microtextures of sediments from ODP Hole 188-1166A (Table 1) |
title_short |
Quartz grain microtextures of sediments from ODP Hole 188-1166A (Table 1) |
title_full |
Quartz grain microtextures of sediments from ODP Hole 188-1166A (Table 1) |
title_fullStr |
Quartz grain microtextures of sediments from ODP Hole 188-1166A (Table 1) |
title_full_unstemmed |
Quartz grain microtextures of sediments from ODP Hole 188-1166A (Table 1) |
title_sort |
quartz grain microtextures of sediments from odp hole 188-1166a (table 1) |
publisher |
PANGAEA |
publishDate |
2003 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.705274 https://doi.org/10.1594/PANGAEA.705274 |
op_coverage |
LATITUDE: -67.696160 * LONGITUDE: 74.786930 * DATE/TIME START: 2000-02-16T01:30:00 * DATE/TIME END: 2000-02-21T16:00:00 * MINIMUM DEPTH, sediment/rock: 2.75 m * MAXIMUM DEPTH, sediment/rock: 342.88 m |
long_lat |
ENVELOPE(74.786930,74.786930,-67.696160,-67.696160) |
geographic |
Antarctic Prydz Bay |
geographic_facet |
Antarctic Prydz Bay |
genre |
Antarc* Antarctic Antarctica Ice Sheet Prydz Bay |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Prydz Bay |
op_source |
Supplement to: Strand, Kari O; Passchier, Sandra; Näsi, Jari (2003): Implications of quartz grain microtextures for onset Eocene/Oligocene glaciation in Prydz Bay, ODP Site 1166, Antarctica. Palaeogeography, Palaeoclimatology, Palaeoecology, 198(1-2), 101-111, https://doi.org/10.1016/S0031-0182(03)00396-1 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.705274 https://doi.org/10.1594/PANGAEA.705274 |
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.705274 https://doi.org/10.1016/S0031-0182(03)00396-1 |
_version_ |
1766014012350267392 |