Smoothed abundance of bulk mineralogy in the Cenozoic sediments of core CRP-3, supplement to: Neumann, M; Ehrmann, Werner (2001): Mineralogy of sediments from CRP-3, Victoria Land Basin, Antarctica, as revealed by x-ray diffraction. Terra Antartica, 8(4), 523-532
The mineralogy of the lower Oligocene (to possibly upper Eocene) sediments of core CRP-3 drilled on the continental shelf of McMurdo Sound in the Ross Sea, Antarctica, has been examined by the X-ray diffraction method. Quartz, plagioclase K- feldspar and pyroxene are the most important non-clay mine...
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2001
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Online Access: | https://dx.doi.org/10.1594/pangaea.57817 https://doi.pangaea.de/10.1594/PANGAEA.57817 |
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ftdatacite:10.1594/pangaea.57817 2023-05-15T13:33:09+02:00 Smoothed abundance of bulk mineralogy in the Cenozoic sediments of core CRP-3, supplement to: Neumann, M; Ehrmann, Werner (2001): Mineralogy of sediments from CRP-3, Victoria Land Basin, Antarctica, as revealed by x-ray diffraction. Terra Antartica, 8(4), 523-532 Neumann, M Ehrmann, Werner 2001 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.57817 https://doi.pangaea.de/10.1594/PANGAEA.57817 en eng PANGAEA - Data Publisher for Earth & Environmental Science Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY DEPTH, sediment/rock Sand Quartz/standard ratio Feldspar/standard ratio Kalifeldspar/standard ratio Plagioclase/standard ratio Kalifeldspar/Plagioclase ratio Quartz/Feldspar ratio Pyroxene/standard ratio Amphibole/standard ratio Zeolite/standard ratio Opal-CT/standard ratio Core wireline system X-ray diffraction, bulk mineralogy CRP-3 Sampling/drilling from ice Cape Roberts Project CRP Supplementary Dataset dataset Dataset 2001 ftdatacite https://doi.org/10.1594/pangaea.57817 2021-11-05T12:55:41Z The mineralogy of the lower Oligocene (to possibly upper Eocene) sediments of core CRP-3 drilled on the continental shelf of McMurdo Sound in the Ross Sea, Antarctica, has been examined by the X-ray diffraction method. Quartz, plagioclase K- feldspar and pyroxene are the most important non-clay minerals. Amphibole occurs in minor amounts. The composition of the sediments points exclusively to an origin in the Transantarctic Mountains for the detrical components. There, the plutonic and metamorphic rocks of the basement, the sediments of the Beacon Supergroup and the volcanic rocks of the Ferrar Supergroup could serve as possible source lithologies. The distribution of the detrital minerals reflects a longterm history of successive erosion and beginning valley incision. During the deposition of the lowest part of the Cenozoic sediments of CRP-3, the majority of detrital minerals was probably derived from the sediments of the upper Beacon Supergroup (Victoria Group) and the Ferrar Supergroup, as indicated by the high quartz and pyroxene concentrations. Only a very minor proportion probably was contributed by basement rocks. From c. 620 to c. 420 mbsf the sandstone-dominated Taylor Group of the Beacon Supergroup probably acted as the main source rock and was responsible for maximum quartz concentrations and the strongly lowered feldspar and pyroxene amounts in the CRP-3 core. Above c. 420 mbsf the erosion in the valleys cutting through the Transantarctic mountains reached the level of the basement rocks and therefore the amount of basement-derived minerals like K-feldspar and amphibole in the CRP-3 sediments became more important. Dataset Antarc* Antarctica antartic* McMurdo Sound Ross Sea Victoria Land DataCite Metadata Store (German National Library of Science and Technology) Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) McMurdo Sound Ross Sea Transantarctic Mountains Victoria Land |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
DEPTH, sediment/rock Sand Quartz/standard ratio Feldspar/standard ratio Kalifeldspar/standard ratio Plagioclase/standard ratio Kalifeldspar/Plagioclase ratio Quartz/Feldspar ratio Pyroxene/standard ratio Amphibole/standard ratio Zeolite/standard ratio Opal-CT/standard ratio Core wireline system X-ray diffraction, bulk mineralogy CRP-3 Sampling/drilling from ice Cape Roberts Project CRP |
spellingShingle |
DEPTH, sediment/rock Sand Quartz/standard ratio Feldspar/standard ratio Kalifeldspar/standard ratio Plagioclase/standard ratio Kalifeldspar/Plagioclase ratio Quartz/Feldspar ratio Pyroxene/standard ratio Amphibole/standard ratio Zeolite/standard ratio Opal-CT/standard ratio Core wireline system X-ray diffraction, bulk mineralogy CRP-3 Sampling/drilling from ice Cape Roberts Project CRP Neumann, M Ehrmann, Werner Smoothed abundance of bulk mineralogy in the Cenozoic sediments of core CRP-3, supplement to: Neumann, M; Ehrmann, Werner (2001): Mineralogy of sediments from CRP-3, Victoria Land Basin, Antarctica, as revealed by x-ray diffraction. Terra Antartica, 8(4), 523-532 |
topic_facet |
DEPTH, sediment/rock Sand Quartz/standard ratio Feldspar/standard ratio Kalifeldspar/standard ratio Plagioclase/standard ratio Kalifeldspar/Plagioclase ratio Quartz/Feldspar ratio Pyroxene/standard ratio Amphibole/standard ratio Zeolite/standard ratio Opal-CT/standard ratio Core wireline system X-ray diffraction, bulk mineralogy CRP-3 Sampling/drilling from ice Cape Roberts Project CRP |
description |
The mineralogy of the lower Oligocene (to possibly upper Eocene) sediments of core CRP-3 drilled on the continental shelf of McMurdo Sound in the Ross Sea, Antarctica, has been examined by the X-ray diffraction method. Quartz, plagioclase K- feldspar and pyroxene are the most important non-clay minerals. Amphibole occurs in minor amounts. The composition of the sediments points exclusively to an origin in the Transantarctic Mountains for the detrical components. There, the plutonic and metamorphic rocks of the basement, the sediments of the Beacon Supergroup and the volcanic rocks of the Ferrar Supergroup could serve as possible source lithologies. The distribution of the detrital minerals reflects a longterm history of successive erosion and beginning valley incision. During the deposition of the lowest part of the Cenozoic sediments of CRP-3, the majority of detrital minerals was probably derived from the sediments of the upper Beacon Supergroup (Victoria Group) and the Ferrar Supergroup, as indicated by the high quartz and pyroxene concentrations. Only a very minor proportion probably was contributed by basement rocks. From c. 620 to c. 420 mbsf the sandstone-dominated Taylor Group of the Beacon Supergroup probably acted as the main source rock and was responsible for maximum quartz concentrations and the strongly lowered feldspar and pyroxene amounts in the CRP-3 core. Above c. 420 mbsf the erosion in the valleys cutting through the Transantarctic mountains reached the level of the basement rocks and therefore the amount of basement-derived minerals like K-feldspar and amphibole in the CRP-3 sediments became more important. |
format |
Dataset |
author |
Neumann, M Ehrmann, Werner |
author_facet |
Neumann, M Ehrmann, Werner |
author_sort |
Neumann, M |
title |
Smoothed abundance of bulk mineralogy in the Cenozoic sediments of core CRP-3, supplement to: Neumann, M; Ehrmann, Werner (2001): Mineralogy of sediments from CRP-3, Victoria Land Basin, Antarctica, as revealed by x-ray diffraction. Terra Antartica, 8(4), 523-532 |
title_short |
Smoothed abundance of bulk mineralogy in the Cenozoic sediments of core CRP-3, supplement to: Neumann, M; Ehrmann, Werner (2001): Mineralogy of sediments from CRP-3, Victoria Land Basin, Antarctica, as revealed by x-ray diffraction. Terra Antartica, 8(4), 523-532 |
title_full |
Smoothed abundance of bulk mineralogy in the Cenozoic sediments of core CRP-3, supplement to: Neumann, M; Ehrmann, Werner (2001): Mineralogy of sediments from CRP-3, Victoria Land Basin, Antarctica, as revealed by x-ray diffraction. Terra Antartica, 8(4), 523-532 |
title_fullStr |
Smoothed abundance of bulk mineralogy in the Cenozoic sediments of core CRP-3, supplement to: Neumann, M; Ehrmann, Werner (2001): Mineralogy of sediments from CRP-3, Victoria Land Basin, Antarctica, as revealed by x-ray diffraction. Terra Antartica, 8(4), 523-532 |
title_full_unstemmed |
Smoothed abundance of bulk mineralogy in the Cenozoic sediments of core CRP-3, supplement to: Neumann, M; Ehrmann, Werner (2001): Mineralogy of sediments from CRP-3, Victoria Land Basin, Antarctica, as revealed by x-ray diffraction. Terra Antartica, 8(4), 523-532 |
title_sort |
smoothed abundance of bulk mineralogy in the cenozoic sediments of core crp-3, supplement to: neumann, m; ehrmann, werner (2001): mineralogy of sediments from crp-3, victoria land basin, antarctica, as revealed by x-ray diffraction. terra antartica, 8(4), 523-532 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2001 |
url |
https://dx.doi.org/10.1594/pangaea.57817 https://doi.pangaea.de/10.1594/PANGAEA.57817 |
long_lat |
ENVELOPE(-70.467,-70.467,-68.950,-68.950) |
geographic |
Cape Roberts McMurdo Sound Ross Sea Transantarctic Mountains Victoria Land |
geographic_facet |
Cape Roberts McMurdo Sound Ross Sea Transantarctic Mountains Victoria Land |
genre |
Antarc* Antarctica antartic* McMurdo Sound Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctica antartic* McMurdo Sound Ross Sea Victoria Land |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.57817 |
_version_ |
1766039043606315008 |