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Substrate control on formation and maturation of glauconites in the Middle Eocene Harudi Formation, western Kutch, India

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Title Substrate control on formation and maturation of glauconites in the Middle Eocene Harudi Formation, western Kutch, India
 
Creator BANERJEE, S
CHATTORAJ, SL
SARASWATI, PK
DASGUPTA, S
SARKAR, U
 
Subject Authigenic glauconite
Pellets
Infillings
Foraminifera
Maturity
Cerium anomaly
Sub-oxic micro-environments
RARE-EARTH-ELEMENTS
CONTINENTAL-SHELF
GEOCHEMISTRY
SEDIMENTS
ENVIRONMENT
MINERALS
ORIGIN
TRACE
CONSTRAINTS
FRAMEWORK
 
Description Formation and maturation of glauconites within the early Middle Eocene Harudi Formation, built up in a lagoon to shelf transition in western Kutch. India is addressed taking recourse to a combined sedimentological, micropalaeontological and mineralogical investigation. The glauconite is authigenic and its occurrence coincides with maximum flooding. The glauconite is more matured within the fecal pellets and is less matured within the intra-particle pores of bioclasts namely, foraminifera, ostracoda, gastropoda and bryozoa. SEM-EDS, XRD and geochemical studies clearly document that the infilling within the intra-particle pores of bioclasts belong to nascent to slightly evolved glauconite (
 
Publisher ELSEVIER SCI LTD
 
Date 2014-10-17T05:09:25Z
2014-10-17T05:09:25Z
2012
 
Type Article
 
Identifier MARINE AND PETROLEUM GEOLOGY, 30(1)144-160
0264-8172
1873-4073
http://dx.doi.org/10.1016/j.marpetgeo.2011.10.008
http://dspace.library.iitb.ac.in/jspui/handle/100/16030
 
Language en