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Record #96404:

The nature of the lithosphere beneath north-western Spitsbergen: xenolith evidence / Hans Erik Foss Amundsen, W.L. Griffin, Suzanne Y. O'Reilly.

Title: The nature of the lithosphere beneath north-western Spitsbergen: xenolith evidence / Hans Erik Foss Amundsen, W.L. Griffin, Suzanne Y. O'Reilly.
Author(s): Amundsen, Hans Erik Foss.
Griffin, W. L.
O'Reilly, Suzanne Y.
Date: 1988.
In: Norges Geologiske Undersøkelse. Special Publication. (1988.), Vol. 3 (1988)
Abstract: Quaternary volcanic centres of Bockfjord area are probably world's largest and richest occurrence of xenoliths from uppermost mantle and lower crust. Basaltic magmas erupted at these centres have transported samples of underlying continental lithosphere from depths ranging from 45 km to upper crustal levels. Upper mantle is dominated by Cr-diopside lherzolites. Lower crust is dominated by mafic, meta-igneous, two-pyroxene granulites. Xenolith data suggest that elevated geotherm, upper mantle and lower crustal lithologies extend further south along western Spitsbergen.
Notes:

Norges Geologiske Undersøkelse. Special Publication. Vol. 3 :58-65 (1988).

Keywords: 551.1/.4 -- Geology.
551.14 -- Lithosphere.
551.21 -- Volcanoes.
551.79 -- Quaternary.
B -- Geology and soil sciences.
(*3) -- Arctic regions.
(*32) -- Svalbard.
SPRI record no.: 96404

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100 1# ‡aAmundsen, Hans Erik Foss.
245 14 ‡aThe nature of the lithosphere beneath north-western Spitsbergen :‡bxenolith evidence /‡cHans Erik Foss Amundsen, W.L. Griffin, Suzanne Y. O'Reilly.
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300 ## ‡ap. 58-65 :‡bdiags., maps.
500 ## ‡aNorges Geologiske Undersøkelse. Special Publication. Vol. 3 :58-65 (1988).
520 3# ‡aQuaternary volcanic centres of Bockfjord area are probably world's largest and richest occurrence of xenoliths from uppermost mantle and lower crust. Basaltic magmas erupted at these centres have transported samples of underlying continental lithosphere from depths ranging from 45 km to upper crustal levels. Upper mantle is dominated by Cr-diopside lherzolites. Lower crust is dominated by mafic, meta-igneous, two-pyroxene granulites. Xenolith data suggest that elevated geotherm, upper mantle and lower crustal lithologies extend further south along western Spitsbergen.
650 07 ‡a551.1/.4 -- Geology.‡2udc
650 07 ‡a551.14 -- Lithosphere.‡2udc
650 07 ‡a551.21 -- Volcanoes.‡2udc
650 07 ‡a551.79 -- Quaternary.‡2udc
650 07 ‡aB -- Geology and soil sciences.‡2local
651 #7 ‡a(*3) -- Arctic regions.‡2udc
651 #7 ‡a(*32) -- Svalbard.‡2udc
700 1# ‡aGriffin, W. L.
700 1# ‡aO'Reilly, Suzanne Y.
773 0# ‡7nnas ‡tNorges Geologiske Undersøkelse. Special Publication. ‡gVol. 3 (1988) ‡wSPRI-84344
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