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Small-scale convection at the interface between stratified layers of mafic and silicic magma, Campbell Ridges, NW Palmer Land, Antarctic Peninsula: Syn-magmatic way-up criteria

Vaughan, A.P.M.; Thistlewood, L.; Millar, I.L.. 1995 Small-scale convection at the interface between stratified layers of mafic and silicic magma, Campbell Ridges, NW Palmer Land, Antarctic Peninsula: Syn-magmatic way-up criteria. Journal of Structural Geology, 17 (7). 1071-1075. 10.1016/0191-8141(95)00010-B

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Abstract/Summary

Experimental data suggest that some igneous mafic inclusions are formed at the interface between underlying mafic magma and more silicic magma in a reservoir by a process of gas exsolution and vesiculation. We report cm-scale plume-like structures exposed over several m2 at a candidate interface in a large composite pluton from NW Palmer Land, Antarctic Peninsula and suggest that, as well as representing ‘frozen’ mafic inclusion formation, plume-like structures of this type can be used as way-up criteria and may be of particular value in the interpretation of palaeomagnetic data.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/0191-8141(95)00010-B
Programmes: BAS Programmes > Pre 2000 programme
ISSN: 01918141
Date made live: 17 Jan 2017 08:35 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/515879

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