Petrology of the Kaipola layered intrusion, southern Finland

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Authors:Peltonen, Petri; Elo, Seppo
Author Affiliations:Primary:
Geological Survey of Finland, Espoo, Finland
Volume Title:Geological Survey of Finland, current research 1997-1998
Volume Authors:Autio, Sini, editor
Source:Geological Survey of Finland, current research 1997-1998, edited by Sini Autio. Special Paper - Geological Survey of Finland, Vol.27, p.21-24. Publisher: Geological Survey of Finland, Espoo, Finland. ISSN: 0782-8535. ISBN: 951-690-743-1
Publication Date:1999
Note:In English
Summary:The Kaipola layered gabbro-diorite intrusion occurs near the E tip of the Tampere schist belt. It has well preserved primary igneous layering and cumulus textures showing distinctive large-scale repetitive layering, with at least seven megacyclic units. A striking feature is the extensive growth of large oikocrysts of green and brown amphibole (pargasite) indicative of the circulation of volatile-rich magma or fluid at the post-cumulus stage. Some of the poikilitic amphibole formed by interstitial crystallization, but most of it was produced by peritectic replacement of cumulus pyroxenes and plagioclase. [R.A.H.]
Sections:Petrology
Subsections:Igneous petrology
Subjects:Diorites; Gabbros; Gravity anomalies; Igneous rocks; Intrusions; Layered intrusions; Petrography; Plutonic rocks; Precambrian; Proterozoic; Upper Precambrian; Europe; Finland; Scandinavia; Western Europe; Central Finland; Jamsa Finland; Kaipola Intrusion; Southern Finland Province; Western Finland Province
Abstract Numbers:00M/4334
Record ID:2000039277
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from FINGEO, Geological Survey of Finland
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