Petrology of ultramafic lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup of Gondwanaland
Mesozoic melilite-bearing ultramafic lamprophyres are developed as sill, dyke and plug-like intrusive bodies in the East Antarctic Beaver Lake area. They consist of varying amounts of olivine, melilite, phlogopite, nepheline, titanomagnetite and perovskite as major phases, accompanied by minor amoun...
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ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/42462 2023-08-20T04:02:07+02:00 Petrology of ultramafic lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup of Gondwanaland Melzer, S. Andronikov, A. V. Foley, S. F. Department of Geological Sciences, University of Michigan, Ann Arbor, Mi, U.S.A., US Projektbereich 4.1, Geoforschungszentrum Potsdam, Potsdam, Germany, DE Institut für Geologische Wissenschaften, Universität Greifswald, Greifswald, Germany, DE Ann Arbor 2002-03 295859 bytes 3115 bytes application/pdf text/plain http://hdl.handle.net/2027.42/42462 https://doi.org/10.1007/s007100200011 en_US eng Springer-Verlag; Springer-Verlag Wien Foley, S. F.; Andronikov, A. V.; Melzer, S.; (2002). "Petrology of ultramafic lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup of Gondwanaland." Mineralogy and Petrology 74 (2-4): 361-384. <http://hdl.handle.net/2027.42/42462> 0930-0708 http://hdl.handle.net/2027.42/42462 http://dx.doi.org/10.1007/s007100200011 Mineralogy and Petrology Legacy Geology and Earth Sciences Chemistry Science Article 2002 ftumdeepblue https://doi.org/10.1007/s007100200011 2023-07-31T20:58:21Z Mesozoic melilite-bearing ultramafic lamprophyres are developed as sill, dyke and plug-like intrusive bodies in the East Antarctic Beaver Lake area. They consist of varying amounts of olivine, melilite, phlogopite, nepheline, titanomagnetite and perovskite as major phases, accompanied by minor amounts of apatite, carbonate, spinel, glass and, rarely, monticellite. The rocks are mineralogically and geochemically broadly similar to olivine melilitites, differing in higher CO 2 and modal phlogopite and carbonate contents. The ultramafic lamprophyres are MgO-rich (13.4–20.5 wt%) and SiO 2 -poor (32.8–37.2 wt%), indicative of a near-primary nature. Major and trace element features are consistent with minor fractionation of olivine and Cr-spinel from melts originating at depths of 130–140 km. Peer Reviewed http://deepblue.lib.umich.edu/bitstream/2027.42/42462/1/710-74-2-4-361_20740361.pdf Article in Journal/Newspaper Antarc* Antarctic Antarctica University of Michigan: Deep Blue Antarctic Beaver Lake ENVELOPE(68.295,68.295,-70.793,-70.793) Mineralogy and Petrology 74 2-4 361 384 |
institution |
Open Polar |
collection |
University of Michigan: Deep Blue |
op_collection_id |
ftumdeepblue |
language |
English |
topic |
Legacy Geology and Earth Sciences Chemistry Science |
spellingShingle |
Legacy Geology and Earth Sciences Chemistry Science Melzer, S. Andronikov, A. V. Foley, S. F. Petrology of ultramafic lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup of Gondwanaland |
topic_facet |
Legacy Geology and Earth Sciences Chemistry Science |
description |
Mesozoic melilite-bearing ultramafic lamprophyres are developed as sill, dyke and plug-like intrusive bodies in the East Antarctic Beaver Lake area. They consist of varying amounts of olivine, melilite, phlogopite, nepheline, titanomagnetite and perovskite as major phases, accompanied by minor amounts of apatite, carbonate, spinel, glass and, rarely, monticellite. The rocks are mineralogically and geochemically broadly similar to olivine melilitites, differing in higher CO 2 and modal phlogopite and carbonate contents. The ultramafic lamprophyres are MgO-rich (13.4–20.5 wt%) and SiO 2 -poor (32.8–37.2 wt%), indicative of a near-primary nature. Major and trace element features are consistent with minor fractionation of olivine and Cr-spinel from melts originating at depths of 130–140 km. Peer Reviewed http://deepblue.lib.umich.edu/bitstream/2027.42/42462/1/710-74-2-4-361_20740361.pdf |
author2 |
Department of Geological Sciences, University of Michigan, Ann Arbor, Mi, U.S.A., US Projektbereich 4.1, Geoforschungszentrum Potsdam, Potsdam, Germany, DE Institut für Geologische Wissenschaften, Universität Greifswald, Greifswald, Germany, DE Ann Arbor |
format |
Article in Journal/Newspaper |
author |
Melzer, S. Andronikov, A. V. Foley, S. F. |
author_facet |
Melzer, S. Andronikov, A. V. Foley, S. F. |
author_sort |
Melzer, S. |
title |
Petrology of ultramafic lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup of Gondwanaland |
title_short |
Petrology of ultramafic lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup of Gondwanaland |
title_full |
Petrology of ultramafic lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup of Gondwanaland |
title_fullStr |
Petrology of ultramafic lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup of Gondwanaland |
title_full_unstemmed |
Petrology of ultramafic lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup of Gondwanaland |
title_sort |
petrology of ultramafic lamprophyres from the beaver lake area of eastern antarctica and their relation to the breakup of gondwanaland |
publisher |
Springer-Verlag; Springer-Verlag Wien |
publishDate |
2002 |
url |
http://hdl.handle.net/2027.42/42462 https://doi.org/10.1007/s007100200011 |
long_lat |
ENVELOPE(68.295,68.295,-70.793,-70.793) |
geographic |
Antarctic Beaver Lake |
geographic_facet |
Antarctic Beaver Lake |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
Foley, S. F.; Andronikov, A. V.; Melzer, S.; (2002). "Petrology of ultramafic lamprophyres from the Beaver Lake area of Eastern Antarctica and their relation to the breakup of Gondwanaland." Mineralogy and Petrology 74 (2-4): 361-384. <http://hdl.handle.net/2027.42/42462> 0930-0708 http://hdl.handle.net/2027.42/42462 http://dx.doi.org/10.1007/s007100200011 Mineralogy and Petrology |
op_doi |
https://doi.org/10.1007/s007100200011 |
container_title |
Mineralogy and Petrology |
container_volume |
74 |
container_issue |
2-4 |
container_start_page |
361 |
op_container_end_page |
384 |
_version_ |
1774712497552490496 |