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Melt-rich segregations in the Skaergaard Marginal Border Series: Tearing of a vertical silicate mush

Abstract:

The Marginal Border Series (MBS) of the Skaergaard Intrusion crystallised on the steeply dipping sidewalls of the magma chamber. Melt-rich segregations, previously described as the 'wavy pyroxene rock' are a key feature of the otherwise homogeneous outermost parts of the MBS. The lens-shaped segregations consistently strike parallel to the chamber wall and have a moderate dip towards it. The shape, size, grain size and mineralogy of the segregations evolve systematically away from the chamber...

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Publication status:
Published

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Authors


Humphreys, MCS More by this author
Holness, MB More by this author
Journal:
LITHOS
Volume:
119
Issue:
3-4
Pages:
181-192
Publication date:
2010-10-05
DOI:
ISSN:
0024-4937
URN:
uuid:dc2032fc-fa13-44d7-ae02-fc780f445019
Source identifiers:
184901
Local pid:
pubs:184901

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