(Table 1) Average composition of smectites of sediment core CRP-3
The aim of this work is to evaluate the origin of smectites in sediments of CRP-3 core (Victoria Land Basin, Antarctica), through TEM observations and microanalyses on smectite microparticles and XRD analyses of clay fractions. Smectites in the lower sedimentary section (between 602.05 and 815.86 mb...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.484702 2023-05-15T13:50:46+02:00 (Table 1) Average composition of smectites of sediment core CRP-3 Setti, Massimo Marinoni, L Lopez-Galindo, A LATITUDE: -77.006000 * LONGITUDE: 163.719000 * DATE/TIME START: 1999-10-09T00:00:00 * DATE/TIME END: 1999-11-19T00:00:00 * MINIMUM DEPTH, sediment/rock: 6.60 m * MAXIMUM DEPTH, sediment/rock: 919.06 m 2001-04-22 text/tab-separated-values, 180 data points https://doi.pangaea.de/10.1594/PANGAEA.484702 https://doi.org/10.1594/PANGAEA.484702 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.484702 https://doi.org/10.1594/PANGAEA.484702 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Setti, Massimo; Marinoni, L; Lopez-Galindo, A (2001): Crystal-chemistry of smectites in sediments of CRP-3 drillcore (Victoria Land Basin, Antarctica): preliminary results. Terra Antartica, 8(4), 543-550, hdl:10013/epic.28222.d001 Aluminium (IV) Aluminium (VI) Calcium Cape Roberts Project Core wireline system CRP CRP-3 CWS DEPTH sediment/rock Iron 3+ Magnesium Magnesium (VI) Potassium Ross Sea Sampling/drilling from ice Silicon Titanium Dataset 2001 ftpangaea https://doi.org/10.1594/PANGAEA.484702 2023-01-20T08:21:48Z The aim of this work is to evaluate the origin of smectites in sediments of CRP-3 core (Victoria Land Basin, Antarctica), through TEM observations and microanalyses on smectite microparticles and XRD analyses of clay fractions. Smectites in the lower sedimentary section (between 602.05 and 815.86 mbsf), and in some levels of the central section of the core, are intermediate members of the beidellite-saponite series, with lower K and higher Mg contents in interlayer and higher cristallinity values. The clay fraction largely consists of smectite, that is regarded as authigenic. Smectites in the upper (between 6.60 and 101.69 mbsf) and in some other levels of the central section of the core are Al-Fe beidellites, with higher K and lower Mg contents in interlayer sites and lower values of crystallinity. In the clay fraction illite and chlorite also occur. These characteristics suggest that smectites in these sediments are detrital. Smectites in an igneous body (between 901.20 and 919.06 mbsf) have a homogeneous composition and are Al-rich beidellite-montmorillonites; the clay fraction is mostly composed by kaolinite with mixed-layer smectite-illite or kaolinite-smectite. Authigenic smectites probably formed from the alteration of volcanic material (pyroxenes, glasses) and/or through precipitation from fluids of possible hydrothermal origin. Dataset Antarc* Antarctica Ross Sea Victoria Land PANGAEA - Data Publisher for Earth & Environmental Science Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) Ross Sea Victoria Land ENVELOPE(163.719000,163.719000,-77.006000,-77.006000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Aluminium (IV) Aluminium (VI) Calcium Cape Roberts Project Core wireline system CRP CRP-3 CWS DEPTH sediment/rock Iron 3+ Magnesium Magnesium (VI) Potassium Ross Sea Sampling/drilling from ice Silicon Titanium |
spellingShingle |
Aluminium (IV) Aluminium (VI) Calcium Cape Roberts Project Core wireline system CRP CRP-3 CWS DEPTH sediment/rock Iron 3+ Magnesium Magnesium (VI) Potassium Ross Sea Sampling/drilling from ice Silicon Titanium Setti, Massimo Marinoni, L Lopez-Galindo, A (Table 1) Average composition of smectites of sediment core CRP-3 |
topic_facet |
Aluminium (IV) Aluminium (VI) Calcium Cape Roberts Project Core wireline system CRP CRP-3 CWS DEPTH sediment/rock Iron 3+ Magnesium Magnesium (VI) Potassium Ross Sea Sampling/drilling from ice Silicon Titanium |
description |
The aim of this work is to evaluate the origin of smectites in sediments of CRP-3 core (Victoria Land Basin, Antarctica), through TEM observations and microanalyses on smectite microparticles and XRD analyses of clay fractions. Smectites in the lower sedimentary section (between 602.05 and 815.86 mbsf), and in some levels of the central section of the core, are intermediate members of the beidellite-saponite series, with lower K and higher Mg contents in interlayer and higher cristallinity values. The clay fraction largely consists of smectite, that is regarded as authigenic. Smectites in the upper (between 6.60 and 101.69 mbsf) and in some other levels of the central section of the core are Al-Fe beidellites, with higher K and lower Mg contents in interlayer sites and lower values of crystallinity. In the clay fraction illite and chlorite also occur. These characteristics suggest that smectites in these sediments are detrital. Smectites in an igneous body (between 901.20 and 919.06 mbsf) have a homogeneous composition and are Al-rich beidellite-montmorillonites; the clay fraction is mostly composed by kaolinite with mixed-layer smectite-illite or kaolinite-smectite. Authigenic smectites probably formed from the alteration of volcanic material (pyroxenes, glasses) and/or through precipitation from fluids of possible hydrothermal origin. |
format |
Dataset |
author |
Setti, Massimo Marinoni, L Lopez-Galindo, A |
author_facet |
Setti, Massimo Marinoni, L Lopez-Galindo, A |
author_sort |
Setti, Massimo |
title |
(Table 1) Average composition of smectites of sediment core CRP-3 |
title_short |
(Table 1) Average composition of smectites of sediment core CRP-3 |
title_full |
(Table 1) Average composition of smectites of sediment core CRP-3 |
title_fullStr |
(Table 1) Average composition of smectites of sediment core CRP-3 |
title_full_unstemmed |
(Table 1) Average composition of smectites of sediment core CRP-3 |
title_sort |
(table 1) average composition of smectites of sediment core crp-3 |
publisher |
PANGAEA |
publishDate |
2001 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.484702 https://doi.org/10.1594/PANGAEA.484702 |
op_coverage |
LATITUDE: -77.006000 * LONGITUDE: 163.719000 * DATE/TIME START: 1999-10-09T00:00:00 * DATE/TIME END: 1999-11-19T00:00:00 * MINIMUM DEPTH, sediment/rock: 6.60 m * MAXIMUM DEPTH, sediment/rock: 919.06 m |
long_lat |
ENVELOPE(-70.467,-70.467,-68.950,-68.950) ENVELOPE(163.719000,163.719000,-77.006000,-77.006000) |
geographic |
Cape Roberts Ross Sea Victoria Land |
geographic_facet |
Cape Roberts Ross Sea Victoria Land |
genre |
Antarc* Antarctica Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctica Ross Sea Victoria Land |
op_source |
Supplement to: Setti, Massimo; Marinoni, L; Lopez-Galindo, A (2001): Crystal-chemistry of smectites in sediments of CRP-3 drillcore (Victoria Land Basin, Antarctica): preliminary results. Terra Antartica, 8(4), 543-550, hdl:10013/epic.28222.d001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.484702 https://doi.org/10.1594/PANGAEA.484702 |
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.484702 |
_version_ |
1766253991337918464 |