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Prehnite and Pumpellyite in the Archaean Sitagota Volcanics Near Deori, Bhandara District, Maharashtra

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Title Prehnite and Pumpellyite in the Archaean Sitagota Volcanics Near Deori, Bhandara District, Maharashtra
 
Creator PATEL, SC
ASTHANA, D
ACHARYA, CS
 
Subject central india
metamorphism
prehnite
pumpellyite
amygdule
metabasalt
maharashtra
 
Description In this communication we report for the first time the occurrence and microprobe analyses of prehnite and pumpellyite in amygdules of metabasalt from Karu Pahar near Deori, Bhandara district, Maharashtra. The metabasalt belongs to the Sitagota Volcanics of the Late Archaean Khairagarh Group of the Dongargarh Supergroup. Pumpellyite occurs as fibrous aggregates, lining or filling amygdules, whereas prehnite occurs sporadically in amygdules as clusters of tiny prismatic crystals. Pumpellyite is iron-rich, between 10.3 and 13.1 wt% Fe2O3. Chlorite is found in close association with pumpellyite in a few of the amygdules. The absence of zeolite, and the presence of prehnite and pumpellyite in the Sitagota metabasalt indicate prehnite-pumpellyite facies metamorphism.
 
Publisher GEOLOGICAL SOC INDIA
 
Date 2011-07-30T06:11:25Z
2011-12-26T12:52:41Z
2011-12-27T05:39:29Z
2011-07-30T06:11:25Z
2011-12-26T12:52:41Z
2011-12-27T05:39:29Z
2008
 
Type Article
 
Identifier JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA, 72(2), 208-212
0016-7622
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7869
http://hdl.handle.net/10054/7869
 
Language en