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Record #125191:

Hydrothermal alteration in some volcano-sedimentary associations in Central Finnish Lapland / Pasi Eilu.

Title: Hydrothermal alteration in some volcano-sedimentary associations in Central Finnish Lapland / Pasi Eilu.
Author(s): Eilu, Pasi.
Date: 1993.
In: Geological Survey of Finland. Special Paper. (1993.), Vol. 18 (1993)
Abstract: Volcanic sequence of Central Lapland greenstones has locally undergone multi-stage synvolcanic hydrothermal alteration followed by regional metamorphic recrystallisation and replacement. Main hydrothermal event had three alteration phases: chloritisation, albitisation and carbonation. Later sericitisation ± chloritisation event was less pervasive. Talc was formed before regional metamorphism. Only evidence of post-metamorphic events at study sites today is tiny carbonate and haematite-filled fractures.
Notes:

Geological Survey of Finland. Special Paper. Vol. 18 :5-13 (1993).

Keywords: 551.1/.4 -- Geology.
551.251 -- Metamorphism.
552.3 -- Igneous rocks.
552.4 -- Metamorphic rocks.
A -- Geophysical sciences (general).
(*56) -- Finland.
(*561) -- Finnish Lapland.
SPRI record no.: 125191

MARCXML

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008 221003s1993####xx#ab#|##|###|0||#0|eng#d
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100 1# ‡aEilu, Pasi.
245 10 ‡aHydrothermal alteration in some volcano-sedimentary associations in Central Finnish Lapland /‡cPasi Eilu.
260 ## ‡a[S.l.] :‡b[s.n.],‡c1993.
300 ## ‡ap. 5-13 :‡bdiags., tables, map.
500 ## ‡aGeological Survey of Finland. Special Paper. Vol. 18 :5-13 (1993).
520 3# ‡aVolcanic sequence of Central Lapland greenstones has locally undergone multi-stage synvolcanic hydrothermal alteration followed by regional metamorphic recrystallisation and replacement. Main hydrothermal event had three alteration phases: chloritisation, albitisation and carbonation. Later sericitisation ± chloritisation event was less pervasive. Talc was formed before regional metamorphism. Only evidence of post-metamorphic events at study sites today is tiny carbonate and haematite-filled fractures.
650 07 ‡a551.1/.4 -- Geology.‡2udc
650 07 ‡a551.251 -- Metamorphism.‡2udc
650 07 ‡a552.3 -- Igneous rocks.‡2udc
650 07 ‡a552.4 -- Metamorphic rocks.‡2udc
650 07 ‡aA -- Geophysical sciences (general).‡2local
651 #7 ‡a(*56) -- Finland.‡2udc
651 #7 ‡a(*561) -- Finnish Lapland.‡2udc
773 0# ‡7nnas ‡tGeological Survey of Finland. Special Paper. ‡gVol. 18 (1993) ‡wSPRI-90002
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20221003