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New constraints on granulite facies metamorphism and melt production in the Lewisian Complex, northwest Scotland

Abstract:

In this study, we investigate the metamorphic history of the Assynt and Gruinard blocks of the Archean Lewisian Complex, northwest Scotland, which are considered by some to represent discrete crustal terranes. For samples of mafic and intermediate rocks, phase diagrams were constructed in the Na2O–CaO–K2O–FeO–MgO–Al2O3–SiO2–H2O–TiO2–O2 (NCKFMASHTO) system using whole-rock compositions. Our results indicate that all samples equilibrated at similar peak metamorphic conditions of ~8–10 kbar and ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1111/jmg.12311

Authors


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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:
Wiley Publisher's website
Journal:
Journal of Metamorphic Geology
Volume:
36
Issue:
6
Pages:
799-819
Publication date:
2018-04-22
Acceptance date:
2018-03-13
DOI:
EISSN:
1525-1314
ISSN:
0263-4929
Source identifiers:
1081648
Keywords:
Pubs id:
pubs:1081648
UUID:
uuid:600a64d9-c9ef-406c-9aa6-88b2d0a7bde4
Local pid:
pubs:1081648
Deposit date:
2020-01-10

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