metamorphic overprint

[¦med·ə¦mȯr·fik ′ō·vər‚print]

(geochemistry)

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overprint

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The presence of sillimanite is important as it reflects a high grade metamorphic overprint has occurred.

Archer Exploration Limited (ASX:AXE) Drilling Completed on Eyre Peninsula Graphite Deposits

Romer & Wright (1992) investigated one columbite sample in the contact aureole of a Paleoproterozoic granite that was subjected to a Caledonian upper greenschist to lower amphibolite facies regional metamorphic overprint and this columbite displayed only partial resetting during Caledonian metamorphism.

U-Pb tantalite, Re-Os molybdenite, and [sup.40]Ar/[sup.39]Ar muscovite dating of the Brazil Lake pegmatite, Nova Scotia: a possible shear-zone related origin for an LCT-type pegmatite

The two groups show mutual transitions with different intensities of HP-LP metamorphic overprint (Fiala et al.

Geochemical constraints of origin and evolution of migmatites in the central part of the Moldanubian Zone (Temelin area), Bohemian Massif

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