Semiquantitative occurence of various minerals in sediment core CRP-2A, supplement to: Neumann, M; Ehrmann, Werner (2000): Mineralogy of sediments from CRP-2/2A, Victoria Land Basin, Antarctica as revealed by x-ray diffraction. Terra Antartica, 7(4), 575-580
The mineralogy of the lower Oligocene to Quaternary sediments of core CRP-2/2A drilled on the continental shelf of McMurdo Sound in Ross Sea, Antarctica, was examined by the X-ray diffraction method. Quartz, plagioclase feldspar and K-feldspar are the most important non-clay minerals. Pyroxene and a...
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1999
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ftdatacite:10.1594/pangaea.55616 2023-05-15T13:47:06+02:00 Semiquantitative occurence of various minerals in sediment core CRP-2A, supplement to: Neumann, M; Ehrmann, Werner (2000): Mineralogy of sediments from CRP-2/2A, Victoria Land Basin, Antarctica as revealed by x-ray diffraction. Terra Antartica, 7(4), 575-580 Neumann, M Ehrmann, Werner 1999 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.55616 https://doi.pangaea.de/10.1594/PANGAEA.55616 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 Feldspar 3.24 Å Kalifeldspar/standard ratio Feldspar 3.18 Å 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 Grain size, sieving/settling tube X-ray diffraction XRD CRP-2 Sampling/drilling from ice Cape Roberts Project CRP Supplementary Dataset dataset Dataset 1999 ftdatacite https://doi.org/10.1594/pangaea.55616 2021-11-05T12:55:41Z The mineralogy of the lower Oligocene to Quaternary sediments of core CRP-2/2A drilled on the continental shelf of McMurdo Sound in Ross Sea, Antarctica, was examined by the X-ray diffraction method. Quartz, plagioclase feldspar and K-feldspar are the most important non-clay minerals. Pyroxene and amphibole occur in minor amounts throughout the core. The composition of the sediments points to an origin in the Transantarctic Mountains for the majority of the detrital components. There, the plutonic and metamorphic rocks of the basement, the sediments of the Beacon Supergroup and the volcanic rocks of the Ferrar Group could serve as possible source lithologies. The distribution of the detrital minerals reflects a long-term history of successive erosion and valley incision. During the deposition of the lower part of the core, the detrital minerals were probably mainly derived from the sediments of the Beacon Supergroup, as indicated by the high quartz but relatively low feldspar abundances. In the upper c. 350 m of the core, the influence of a source in the basement became stronger and results in lower quartz contents but increasing abundance of feldspar. Some diagenetic alteration of the sediments is indicated by the occurrence of zeolites below c. 320 mbsf and of opal-CT above c. 320 mbsf. 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 Feldspar 3.24 Å Kalifeldspar/standard ratio Feldspar 3.18 Å 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 Grain size, sieving/settling tube X-ray diffraction XRD CRP-2 Sampling/drilling from ice Cape Roberts Project CRP |
spellingShingle |
DEPTH, sediment/rock Sand Quartz/standard ratio Feldspar/standard ratio Feldspar 3.24 Å Kalifeldspar/standard ratio Feldspar 3.18 Å 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 Grain size, sieving/settling tube X-ray diffraction XRD CRP-2 Sampling/drilling from ice Cape Roberts Project CRP Neumann, M Ehrmann, Werner Semiquantitative occurence of various minerals in sediment core CRP-2A, supplement to: Neumann, M; Ehrmann, Werner (2000): Mineralogy of sediments from CRP-2/2A, Victoria Land Basin, Antarctica as revealed by x-ray diffraction. Terra Antartica, 7(4), 575-580 |
topic_facet |
DEPTH, sediment/rock Sand Quartz/standard ratio Feldspar/standard ratio Feldspar 3.24 Å Kalifeldspar/standard ratio Feldspar 3.18 Å 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 Grain size, sieving/settling tube X-ray diffraction XRD CRP-2 Sampling/drilling from ice Cape Roberts Project CRP |
description |
The mineralogy of the lower Oligocene to Quaternary sediments of core CRP-2/2A drilled on the continental shelf of McMurdo Sound in Ross Sea, Antarctica, was examined by the X-ray diffraction method. Quartz, plagioclase feldspar and K-feldspar are the most important non-clay minerals. Pyroxene and amphibole occur in minor amounts throughout the core. The composition of the sediments points to an origin in the Transantarctic Mountains for the majority of the detrital components. There, the plutonic and metamorphic rocks of the basement, the sediments of the Beacon Supergroup and the volcanic rocks of the Ferrar Group could serve as possible source lithologies. The distribution of the detrital minerals reflects a long-term history of successive erosion and valley incision. During the deposition of the lower part of the core, the detrital minerals were probably mainly derived from the sediments of the Beacon Supergroup, as indicated by the high quartz but relatively low feldspar abundances. In the upper c. 350 m of the core, the influence of a source in the basement became stronger and results in lower quartz contents but increasing abundance of feldspar. Some diagenetic alteration of the sediments is indicated by the occurrence of zeolites below c. 320 mbsf and of opal-CT above c. 320 mbsf. |
format |
Dataset |
author |
Neumann, M Ehrmann, Werner |
author_facet |
Neumann, M Ehrmann, Werner |
author_sort |
Neumann, M |
title |
Semiquantitative occurence of various minerals in sediment core CRP-2A, supplement to: Neumann, M; Ehrmann, Werner (2000): Mineralogy of sediments from CRP-2/2A, Victoria Land Basin, Antarctica as revealed by x-ray diffraction. Terra Antartica, 7(4), 575-580 |
title_short |
Semiquantitative occurence of various minerals in sediment core CRP-2A, supplement to: Neumann, M; Ehrmann, Werner (2000): Mineralogy of sediments from CRP-2/2A, Victoria Land Basin, Antarctica as revealed by x-ray diffraction. Terra Antartica, 7(4), 575-580 |
title_full |
Semiquantitative occurence of various minerals in sediment core CRP-2A, supplement to: Neumann, M; Ehrmann, Werner (2000): Mineralogy of sediments from CRP-2/2A, Victoria Land Basin, Antarctica as revealed by x-ray diffraction. Terra Antartica, 7(4), 575-580 |
title_fullStr |
Semiquantitative occurence of various minerals in sediment core CRP-2A, supplement to: Neumann, M; Ehrmann, Werner (2000): Mineralogy of sediments from CRP-2/2A, Victoria Land Basin, Antarctica as revealed by x-ray diffraction. Terra Antartica, 7(4), 575-580 |
title_full_unstemmed |
Semiquantitative occurence of various minerals in sediment core CRP-2A, supplement to: Neumann, M; Ehrmann, Werner (2000): Mineralogy of sediments from CRP-2/2A, Victoria Land Basin, Antarctica as revealed by x-ray diffraction. Terra Antartica, 7(4), 575-580 |
title_sort |
semiquantitative occurence of various minerals in sediment core crp-2a, supplement to: neumann, m; ehrmann, werner (2000): mineralogy of sediments from crp-2/2a, victoria land basin, antarctica as revealed by x-ray diffraction. terra antartica, 7(4), 575-580 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1999 |
url |
https://dx.doi.org/10.1594/pangaea.55616 https://doi.pangaea.de/10.1594/PANGAEA.55616 |
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.55616 |
_version_ |
1766246354991972352 |