Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering
Geochemical and magnetic data from glacigenic sediments can be useful indicators of past environments and climate. In this paper, the results of X-ray fluorescence (XRF) and rock magnetic analyses are presented for samples from the Pagodroma Group, an assemblage of pre-Quaternary glacimarine sedimen...
Published in: | Antarctic Science |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2003
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s095410200300138x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410200300138X |
id |
crcambridgeupr:10.1017/s095410200300138x |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s095410200300138x 2024-04-28T07:58:48+00:00 Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering BLOEMENDAL, J. EHRMANN, W. HAMBREY, M.J. MCKELVEY, B.C. MATTHEWS, R. WHITEHEAD, J.M. 2003 http://dx.doi.org/10.1017/s095410200300138x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410200300138X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 15, issue 3, page 365-378 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2003 crcambridgeupr https://doi.org/10.1017/s095410200300138x 2024-04-09T06:54:46Z Geochemical and magnetic data from glacigenic sediments can be useful indicators of past environments and climate. In this paper, the results of X-ray fluorescence (XRF) and rock magnetic analyses are presented for samples from the Pagodroma Group, an assemblage of pre-Quaternary glacimarine sediments preserved as remnants along the raised flanks of the Lambert Graben, Prince Charles Mountains, East Antarctica. Samples were obtained from four formations: Mount Johnston, Battye Glacier, Fisher Bench and Bardin Bluffs, which range in age from late Oligocene or early Miocene through to Pliocene or early Pleistocene. Principal component analysis of the XRF data indicates the occurrence of two main element assemblages, which we infer are determined by the presence in the Bardin Bluffs formation of a significant component derived from Permo–Triassic sedimentary rocks of the Amery Group. Calculation of chemical indices of alteration suggests that the values reflect provenance differences rather than the syndepositional weathering environment. Multidomain ferrimagnetic grains mainly dominate the magnetic mineral assemblages of the samples, probably magnetite, with varying concentrations of high coercivity material, probably hematite. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica Battye Glacier East Antarctica Prince Charles Mountains Cambridge University Press Antarctic Science 15 3 365 378 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography BLOEMENDAL, J. EHRMANN, W. HAMBREY, M.J. MCKELVEY, B.C. MATTHEWS, R. WHITEHEAD, J.M. Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Geochemical and magnetic data from glacigenic sediments can be useful indicators of past environments and climate. In this paper, the results of X-ray fluorescence (XRF) and rock magnetic analyses are presented for samples from the Pagodroma Group, an assemblage of pre-Quaternary glacimarine sediments preserved as remnants along the raised flanks of the Lambert Graben, Prince Charles Mountains, East Antarctica. Samples were obtained from four formations: Mount Johnston, Battye Glacier, Fisher Bench and Bardin Bluffs, which range in age from late Oligocene or early Miocene through to Pliocene or early Pleistocene. Principal component analysis of the XRF data indicates the occurrence of two main element assemblages, which we infer are determined by the presence in the Bardin Bluffs formation of a significant component derived from Permo–Triassic sedimentary rocks of the Amery Group. Calculation of chemical indices of alteration suggests that the values reflect provenance differences rather than the syndepositional weathering environment. Multidomain ferrimagnetic grains mainly dominate the magnetic mineral assemblages of the samples, probably magnetite, with varying concentrations of high coercivity material, probably hematite. |
format |
Article in Journal/Newspaper |
author |
BLOEMENDAL, J. EHRMANN, W. HAMBREY, M.J. MCKELVEY, B.C. MATTHEWS, R. WHITEHEAD, J.M. |
author_facet |
BLOEMENDAL, J. EHRMANN, W. HAMBREY, M.J. MCKELVEY, B.C. MATTHEWS, R. WHITEHEAD, J.M. |
author_sort |
BLOEMENDAL, J. |
title |
Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering |
title_short |
Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering |
title_full |
Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering |
title_fullStr |
Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering |
title_full_unstemmed |
Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering |
title_sort |
geochemical and rock magnetic records from sediments of the cenozoic pagodroma group, prince charles mountains, east antarctica: implications for provenance and weathering |
publisher |
Cambridge University Press (CUP) |
publishDate |
2003 |
url |
http://dx.doi.org/10.1017/s095410200300138x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410200300138X |
genre |
Antarc* Antarctic Science Antarctica Battye Glacier East Antarctica Prince Charles Mountains |
genre_facet |
Antarc* Antarctic Science Antarctica Battye Glacier East Antarctica Prince Charles Mountains |
op_source |
Antarctic Science volume 15, issue 3, page 365-378 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s095410200300138x |
container_title |
Antarctic Science |
container_volume |
15 |
container_issue |
3 |
container_start_page |
365 |
op_container_end_page |
378 |
_version_ |
1797571861128675328 |