(Table 1) Average composition of smectites of sediment core CRP-3, 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
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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ftdatacite:10.1594/pangaea.484702 2023-05-15T13:47:06+02:00 (Table 1) Average composition of smectites of sediment core CRP-3, 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 Setti, Massimo Marinoni, L Lopez-Galindo, A 2001 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.484702 https://doi.pangaea.de/10.1594/PANGAEA.484702 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 Silicon Aluminium IV Aluminium VI Magnesium VI Iron 3+ Titanium Potassium Calcium Magnesium Core wireline system CRP-3 Sampling/drilling from ice Cape Roberts Project CRP Supplementary Dataset dataset Dataset 2001 ftdatacite https://doi.org/10.1594/pangaea.484702 2021-11-05T12:55:41Z 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. : Atomic formula calculated on the basis of O = 10 and OH = 2. Dataset Antarc* Antarctica antartic* Victoria Land DataCite Metadata Store (German National Library of Science and Technology) Victoria Land Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) Lopez ENVELOPE(-63.567,-63.567,-64.850,-64.850) Galindo ENVELOPE(-58.500,-58.500,-61.950,-61.950) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
DEPTH, sediment/rock Silicon Aluminium IV Aluminium VI Magnesium VI Iron 3+ Titanium Potassium Calcium Magnesium Core wireline system CRP-3 Sampling/drilling from ice Cape Roberts Project CRP |
spellingShingle |
DEPTH, sediment/rock Silicon Aluminium IV Aluminium VI Magnesium VI Iron 3+ Titanium Potassium Calcium Magnesium Core wireline system CRP-3 Sampling/drilling from ice Cape Roberts Project CRP Setti, Massimo Marinoni, L Lopez-Galindo, A (Table 1) Average composition of smectites of sediment core CRP-3, 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 |
topic_facet |
DEPTH, sediment/rock Silicon Aluminium IV Aluminium VI Magnesium VI Iron 3+ Titanium Potassium Calcium Magnesium Core wireline system CRP-3 Sampling/drilling from ice Cape Roberts Project CRP |
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. : Atomic formula calculated on the basis of O = 10 and OH = 2. |
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, 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 |
title_short |
(Table 1) Average composition of smectites of sediment core CRP-3, 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 |
title_full |
(Table 1) Average composition of smectites of sediment core CRP-3, 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 |
title_fullStr |
(Table 1) Average composition of smectites of sediment core CRP-3, 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 |
title_full_unstemmed |
(Table 1) Average composition of smectites of sediment core CRP-3, 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 |
title_sort |
(table 1) average composition of smectites of sediment core crp-3, 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 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2001 |
url |
https://dx.doi.org/10.1594/pangaea.484702 https://doi.pangaea.de/10.1594/PANGAEA.484702 |
long_lat |
ENVELOPE(-70.467,-70.467,-68.950,-68.950) ENVELOPE(-63.567,-63.567,-64.850,-64.850) ENVELOPE(-58.500,-58.500,-61.950,-61.950) |
geographic |
Victoria Land Cape Roberts Lopez Galindo |
geographic_facet |
Victoria Land Cape Roberts Lopez Galindo |
genre |
Antarc* Antarctica antartic* Victoria Land |
genre_facet |
Antarc* Antarctica antartic* 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.484702 |
_version_ |
1766246324981727232 |