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Partial melting of metabasic rocks and the generation of tonalitic–trondhjemitic–granodioritic (TTG) crust in the Archaean: Constraints from phase equilibrium modelling

Abstract:

Rocks of tonalitic–trondhjemitic–granodioritic (TTG) composition preserved in Archaean terranes represent fragments of the Earth's earliest-formed continental crust, and are thought to have formed via partial melting of hydrated metabasalt. The geodynamic environments in which such high-grade metamorphism and anatexis may have occurred in the early Earth is strongly debated. Constraining the pressure (P) and temperature (T) conditions at which melts of appropriate composition can be derived f...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Earth Sciences
Oxford college:
St Cross College
Role:
Author
ORCID:
0000-0002-6959-0462
Publisher:
Elsevier
Journal:
Precambrian Research More from this journal
Volume:
287
Pages:
73-90
Publication date:
2016-11-03
Acceptance date:
2016-11-01
DOI:
EISSN:
0301-9268
Keywords:
Pubs id:
pubs:1081650
UUID:
uuid:6a74240a-7ff0-4458-95d7-bc5b1ba4eeaf
Local pid:
pubs:1081650
Source identifiers:
1081650
Deposit date:
2020-01-10

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