Mineralogical evidence for the origin of mafic microgranular enclaves in S-type granites and volcanics

Marlina A. Elburg; I. A. Nicholls; S. H. Sie

doi:10.1016/0168-583X(95)00460-2

Mineralogical evidence for the origin of mafic microgranular enclaves in S-type granites and volcanics

Marlina A. Elburg, I. A. Nicholls, S. H. Sie

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Mafic microgranular enclaves in felsic igneous rocks from two localities in the Lachlan Fold Belt were investigated by proton microprobe to determine their origin. Pronounced differences in trace element content of orthopyroxene and plagioclase between enclaves and a host ignimbrite preclude a cogenetic origin. The trace element content of minerals in an enclave and its host granitoid show more subtle distinctions. In both cases, an origin for the enclaves by magma mingling seems most likely.

Original language	English
Pages (from-to)	464-469
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	104
Issue number	1-4
DOIs	https://doi.org/10.1016/0168-583X(95)00460-2
Publication status	Published - 2 Sept 1995
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/0168-583X(95)00460-2

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abstract = "Mafic microgranular enclaves in felsic igneous rocks from two localities in the Lachlan Fold Belt were investigated by proton microprobe to determine their origin. Pronounced differences in trace element content of orthopyroxene and plagioclase between enclaves and a host ignimbrite preclude a cogenetic origin. The trace element content of minerals in an enclave and its host granitoid show more subtle distinctions. In both cases, an origin for the enclaves by magma mingling seems most likely.",

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Mineralogical evidence for the origin of mafic microgranular enclaves in S-type granites and volcanics. / Elburg, Marlina A.; Nicholls, I. A.; Sie, S. H.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 104, No. 1-4, 02.09.1995, p. 464-469.

Research output: Contribution to journal › Article › peer-review

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AB - Mafic microgranular enclaves in felsic igneous rocks from two localities in the Lachlan Fold Belt were investigated by proton microprobe to determine their origin. Pronounced differences in trace element content of orthopyroxene and plagioclase between enclaves and a host ignimbrite preclude a cogenetic origin. The trace element content of minerals in an enclave and its host granitoid show more subtle distinctions. In both cases, an origin for the enclaves by magma mingling seems most likely.

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Mineralogical evidence for the origin of mafic microgranular enclaves in S-type granites and volcanics

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