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The transition from an Archean granite-greenstone terrain into a charnockite terrain in southern IndiaIn southern India, it is possible to study the transition from an Archean granite-greenstone terrain (the Karnataka province) into high grade charnockites. The transition occurs over an outcrop width of 20-35 km and appears to represent burial depths ranging from 15 to 20 km. Field and geochemical studies indicate that the charnockites developed at the expense of tonalites, granites, and greenstones. South of the transition zone, geobarometer studies indicate burial depths of 7-9 kb.
Document ID
19840012884
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Condie, K. C. (New Mexico Inst. of Mining and Technology Socorro, NM, United States)
Allen, P. (New Mexico Inst. of Mining and Technology Socorro, NM, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1983
Publication Information
Publication: Lunar and Planetary Inst. Workshop on a Cross Section of Archean Crust
Subject Category
Geophysics
Accession Number
84N20952
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19840012879Collected WorksWorkshop on a Cross Section of Archean Crust
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