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Did diamond-bearing orangeites originate from MARID-veined peridotites in the lithospheric mantle?

Giuliani, Andrea; Phillips, David; Woodhead, Jon D; Kamenetsky, Vadim S; Fiorentini, Marco; Maas, Roland; Soltys, Ashton; Armstrong, Richard

Description

Kimberlites and orangeites (previously named Group-II kimberlites) are small-volume igneous rocks occurring in diatremes, sills and dykes. They are the main hosts for diamonds and are of scientific importance because they contain fragments of entrained mantle and crustal rocks, thus providing key information about the subcontinental lithosphere. Orangeites are ultrapotassic, H<inf>2</inf>O and CO<inf>2</inf>-rich rocks hosting minerals such as phlogopite, olivine, calcite and apatite. The...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/67479
Source: Nature Communications
DOI: 10.1038/ncomms7837

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