The megacryst and inclusion assemblage from the Black Rock vent, Ayrshire.

R. W.S. Alexander; J. B. Dawson; E. M. Patterson; R. L. Hervig

doi:10.1144/sjg22020203

The megacryst and inclusion assemblage from the Black Rock vent, Ayrshire.

R. W.S. Alexander, J. B. Dawson, E. M. Patterson, R. L. Hervig

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

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Abstract

This Carboniferous basanitic vent on the NW Ayrshire coast, 2 km SSW of Fairlie, outcrops on a flat, tidal beach and contains an inclusion assemblage of single-phase megacrysts and altered ultramafic xenoliths. Megacrysts of clinopyroxene, kaersutite, phlogopite and anorthoclase belong to the Al-augite group; the ultramafic xenoliths are identified as amphibole-lherzolites of the Cr-diopside group. Probe analyses of minerals from each group show them to be very similar to other Scottish and world-wide examples of inclusions in undersaturated alkaline volcanic rocks. -R.A.H.

Original language	English (US)
Pages (from-to)	203-212
Number of pages	10
Journal	Scottish Journal of Geology
Volume	22
Issue number	2
DOIs	https://doi.org/10.1144/sjg22020203
State	Published - Jan 1 1986
Externally published	Yes

ASJC Scopus subject areas

Geology

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title = "The megacryst and inclusion assemblage from the Black Rock vent, Ayrshire.",

abstract = "This Carboniferous basanitic vent on the NW Ayrshire coast, 2 km SSW of Fairlie, outcrops on a flat, tidal beach and contains an inclusion assemblage of single-phase megacrysts and altered ultramafic xenoliths. Megacrysts of clinopyroxene, kaersutite, phlogopite and anorthoclase belong to the Al-augite group; the ultramafic xenoliths are identified as amphibole-lherzolites of the Cr-diopside group. Probe analyses of minerals from each group show them to be very similar to other Scottish and world-wide examples of inclusions in undersaturated alkaline volcanic rocks. -R.A.H.",

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AU - Alexander, R. W.S.

AU - Dawson, J. B.

AU - Patterson, E. M.

AU - Hervig, R. L.

PY - 1986/1/1

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N2 - This Carboniferous basanitic vent on the NW Ayrshire coast, 2 km SSW of Fairlie, outcrops on a flat, tidal beach and contains an inclusion assemblage of single-phase megacrysts and altered ultramafic xenoliths. Megacrysts of clinopyroxene, kaersutite, phlogopite and anorthoclase belong to the Al-augite group; the ultramafic xenoliths are identified as amphibole-lherzolites of the Cr-diopside group. Probe analyses of minerals from each group show them to be very similar to other Scottish and world-wide examples of inclusions in undersaturated alkaline volcanic rocks. -R.A.H.

AB - This Carboniferous basanitic vent on the NW Ayrshire coast, 2 km SSW of Fairlie, outcrops on a flat, tidal beach and contains an inclusion assemblage of single-phase megacrysts and altered ultramafic xenoliths. Megacrysts of clinopyroxene, kaersutite, phlogopite and anorthoclase belong to the Al-augite group; the ultramafic xenoliths are identified as amphibole-lherzolites of the Cr-diopside group. Probe analyses of minerals from each group show them to be very similar to other Scottish and world-wide examples of inclusions in undersaturated alkaline volcanic rocks. -R.A.H.

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The megacryst and inclusion assemblage from the Black Rock vent, Ayrshire.

Abstract

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