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Record #135653:

Geology of the Poritash volcanic centre: new results / Peter K. Skuf'in.

Title: Geology of the Poritash volcanic centre: new results / Peter K. Skuf'in.
Author(s): Skuf'in, Peter K.
Date: 1995.
Publisher: Trondheim, Norway: Geological Survey of Norway
In: Geology of the Eastern Finnmark - Western Kola Peninsula Region. (1995.),
Abstract: Sub-volcanic dacites of centre form échelon of lenticular bodies with disconformable contacts to host. Petrochemical features are similar to those of other andesitic volcanic centres of Southern Pechenga Zone. REE spectra are also similar. Rb-Sr isochron from dacites has yielded age of 1720 Ma., whilst Porojarvi andesites are 1880 Ma. We may be dealing with rejuvenation of Poritash rocks during intrusion period.
Notes:

In: Geology of the Eastern Finnmark - Western Kola Peninsula Region / David Roberts, Øystein Nordgulen, eds.

Keywords: 061.3 -- Conferences: 1993 1st. International Barents Symposium.
550.93 -- Geochronology.
551.1/.4 -- Geology.
B -- Geology and soil sciences.
(*3) -- Arctic regions.
(*531.9) -- Murmanskaya Oblast'.
(*582) -- Finnmark.
SPRI record no.: 135653

MARCXML

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035 ## ‡aSPRI-135653
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100 1# ‡aSkuf'in, Peter K.
245 10 ‡aGeology of the Poritash volcanic centre :‡bnew results /‡cPeter K. Skuf'in.
260 ## ‡aTrondheim, Norway :‡bGeological Survey of Norway,‡c1995.
300 ## ‡ap. 111-116 :‡bill., diags., table.
500 ## ‡aIn: Geology of the Eastern Finnmark - Western Kola Peninsula Region / David Roberts, Øystein Nordgulen, eds.
520 3# ‡aSub-volcanic dacites of centre form échelon of lenticular bodies with disconformable contacts to host. Petrochemical features are similar to those of other andesitic volcanic centres of Southern Pechenga Zone. REE spectra are also similar. Rb-Sr isochron from dacites has yielded age of 1720 Ma., whilst Porojarvi andesites are 1880 Ma. We may be dealing with rejuvenation of Poritash rocks during intrusion period.
650 07 ‡a061.3 -- Conferences: 1993 1st. International Barents Symposium.‡2udc
650 07 ‡a550.93 -- Geochronology.‡2udc
650 07 ‡a551.1/.4 -- Geology.‡2udc
650 07 ‡aB -- Geology and soil sciences.‡2local
651 #7 ‡a(*3) -- Arctic regions.‡2udc
651 #7 ‡a(*531.9) -- Murmanskaya Oblast'.‡2udc
651 #7 ‡a(*582) -- Finnmark.‡2udc
773 0# ‡7nnam ‡aDavid Roberts, Øystein Nordgulen, eds. ‡tGeology of the Eastern Finnmark - Western Kola Peninsula Region. ‡dTrondheim, Norway : Geological Survey of Norway, 1995. ‡wSPRI-134536
917 ## ‡aUnenhanced record from Muscat, imported 2019
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