Geochemistry of selected Ferrar samples from Northern Victoria Land and George V Land during GANOVEX VIII
Newly sampled basaltic andesites and andesites from the tholeiitic Ferrar Supergroup of northern Victoria Land and George V Land, Antarctica, are attributed to the known low-Ti and high-Ti series. Aside from known sparsely distributed high-Ti extrusives, a high-Ti sill was found in the Alamein Range...
Main Authors: | , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2004
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.848056 https://doi.org/10.1594/PANGAEA.848056 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.848056 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.848056 2023-05-15T13:44:47+02:00 Geochemistry of selected Ferrar samples from Northern Victoria Land and George V Land during GANOVEX VIII Hanemann, Ricarda Viereck-Götte, Lothar MEDIAN LATITUDE: -71.005497 * MEDIAN LONGITUDE: 159.509945 * SOUTH-BOUND LATITUDE: -72.700000 * WEST-BOUND LONGITUDE: 149.751670 * NORTH-BOUND LATITUDE: -68.351670 * EAST-BOUND LONGITUDE: 164.810000 * DATE/TIME START: 1999-12-11T00:00:00 * DATE/TIME END: 2000-02-26T00:00:00 2004-07-13 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.848056 https://doi.org/10.1594/PANGAEA.848056 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.848056 https://doi.org/10.1594/PANGAEA.848056 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Hanemann, Ricarda; Viereck-Götte, Lothar (2004): Geochemistry of jurassic Ferrar lava flows, sills and dikes sampled during the Joint German-Italian Antarctic Expedition 1999/2000. Terra Antartica, 11(1), 39-54 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Dataset 2004 ftpangaea https://doi.org/10.1594/PANGAEA.848056 2023-01-20T07:33:29Z Newly sampled basaltic andesites and andesites from the tholeiitic Ferrar Supergroup of northern Victoria Land and George V Land, Antarctica, are attributed to the known low-Ti and high-Ti series. Aside from known sparsely distributed high-Ti extrusives, a high-Ti sill was found in the Alamein Range outside the Rennick Graben. Low-Ti lavas, sills and dikes display wide petrographical, mineral and geochemical variations, reflecting extensive in-situ differentiation. High-Ti rocks from Litell Rocks are homogeneous with respect to mineralogy and geochemistry, minor deviations are shown by the sampled sill. Chilled margins of low-Ti sills, dikes and lava flows exhibit nearly constant bulk-rock chemistry (mg# ~60) within the studied area. Compared to chilled margins from Tasmanian sills, the striking uniformity of the pre-emplacement chemistry of Ferrar magmas over large distances supports the magma transport model of Elliot et al. (1999, doi:10.1016/S0012-821X(99)00023-0). In the area investigated, compositional variations within the low-Ti series, caused by in-situ differentiation, increase towards the Wilson-Bowers Terrane boundary, possibly displaying the asymmetrical distribution of outcrops over this area. Absence of Ferrar occurrences east of the Bowers Terrane remains a matter of palaeo-geodynamic discussion. Besides, the secondary mineralogy of extrusives from Litell Rocks and Monument Nunataks exhibits noticeable differences, which indicates an elevated thermal gradient in the vicinity of Litell Rocks compared to Monument Nunataks during the Cretaceous. Dataset Antarc* Antarctic Antarctica Arctic George V Land Sea ice Victoria Land PANGAEA - Data Publisher for Earth & Environmental Science Arctic Antarctic Victoria Land Bowers ENVELOPE(164.083,164.083,-85.000,-85.000) Elliot ENVELOPE(166.533,166.533,-70.883,-70.883) George V Land ENVELOPE(148.000,148.000,-68.500,-68.500) Rennick ENVELOPE(161.500,161.500,-72.000,-72.000) Litell Rocks ENVELOPE(162.000,162.000,-71.400,-71.400) Alamein Range ENVELOPE(163.500,163.500,-72.083,-72.083) Monument Nunataks ENVELOPE(162.250,162.250,-72.583,-72.583) ENVELOPE(149.751670,164.810000,-68.351670,-72.700000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
spellingShingle |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Hanemann, Ricarda Viereck-Götte, Lothar Geochemistry of selected Ferrar samples from Northern Victoria Land and George V Land during GANOVEX VIII |
topic_facet |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
description |
Newly sampled basaltic andesites and andesites from the tholeiitic Ferrar Supergroup of northern Victoria Land and George V Land, Antarctica, are attributed to the known low-Ti and high-Ti series. Aside from known sparsely distributed high-Ti extrusives, a high-Ti sill was found in the Alamein Range outside the Rennick Graben. Low-Ti lavas, sills and dikes display wide petrographical, mineral and geochemical variations, reflecting extensive in-situ differentiation. High-Ti rocks from Litell Rocks are homogeneous with respect to mineralogy and geochemistry, minor deviations are shown by the sampled sill. Chilled margins of low-Ti sills, dikes and lava flows exhibit nearly constant bulk-rock chemistry (mg# ~60) within the studied area. Compared to chilled margins from Tasmanian sills, the striking uniformity of the pre-emplacement chemistry of Ferrar magmas over large distances supports the magma transport model of Elliot et al. (1999, doi:10.1016/S0012-821X(99)00023-0). In the area investigated, compositional variations within the low-Ti series, caused by in-situ differentiation, increase towards the Wilson-Bowers Terrane boundary, possibly displaying the asymmetrical distribution of outcrops over this area. Absence of Ferrar occurrences east of the Bowers Terrane remains a matter of palaeo-geodynamic discussion. Besides, the secondary mineralogy of extrusives from Litell Rocks and Monument Nunataks exhibits noticeable differences, which indicates an elevated thermal gradient in the vicinity of Litell Rocks compared to Monument Nunataks during the Cretaceous. |
format |
Dataset |
author |
Hanemann, Ricarda Viereck-Götte, Lothar |
author_facet |
Hanemann, Ricarda Viereck-Götte, Lothar |
author_sort |
Hanemann, Ricarda |
title |
Geochemistry of selected Ferrar samples from Northern Victoria Land and George V Land during GANOVEX VIII |
title_short |
Geochemistry of selected Ferrar samples from Northern Victoria Land and George V Land during GANOVEX VIII |
title_full |
Geochemistry of selected Ferrar samples from Northern Victoria Land and George V Land during GANOVEX VIII |
title_fullStr |
Geochemistry of selected Ferrar samples from Northern Victoria Land and George V Land during GANOVEX VIII |
title_full_unstemmed |
Geochemistry of selected Ferrar samples from Northern Victoria Land and George V Land during GANOVEX VIII |
title_sort |
geochemistry of selected ferrar samples from northern victoria land and george v land during ganovex viii |
publisher |
PANGAEA |
publishDate |
2004 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.848056 https://doi.org/10.1594/PANGAEA.848056 |
op_coverage |
MEDIAN LATITUDE: -71.005497 * MEDIAN LONGITUDE: 159.509945 * SOUTH-BOUND LATITUDE: -72.700000 * WEST-BOUND LONGITUDE: 149.751670 * NORTH-BOUND LATITUDE: -68.351670 * EAST-BOUND LONGITUDE: 164.810000 * DATE/TIME START: 1999-12-11T00:00:00 * DATE/TIME END: 2000-02-26T00:00:00 |
long_lat |
ENVELOPE(164.083,164.083,-85.000,-85.000) ENVELOPE(166.533,166.533,-70.883,-70.883) ENVELOPE(148.000,148.000,-68.500,-68.500) ENVELOPE(161.500,161.500,-72.000,-72.000) ENVELOPE(162.000,162.000,-71.400,-71.400) ENVELOPE(163.500,163.500,-72.083,-72.083) ENVELOPE(162.250,162.250,-72.583,-72.583) ENVELOPE(149.751670,164.810000,-68.351670,-72.700000) |
geographic |
Arctic Antarctic Victoria Land Bowers Elliot George V Land Rennick Litell Rocks Alamein Range Monument Nunataks |
geographic_facet |
Arctic Antarctic Victoria Land Bowers Elliot George V Land Rennick Litell Rocks Alamein Range Monument Nunataks |
genre |
Antarc* Antarctic Antarctica Arctic George V Land Sea ice Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Arctic George V Land Sea ice Victoria Land |
op_source |
Supplement to: Hanemann, Ricarda; Viereck-Götte, Lothar (2004): Geochemistry of jurassic Ferrar lava flows, sills and dikes sampled during the Joint German-Italian Antarctic Expedition 1999/2000. Terra Antartica, 11(1), 39-54 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.848056 https://doi.org/10.1594/PANGAEA.848056 |
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.848056 |
_version_ |
1766206295803691008 |