Heavy minerals as a guide to turbidite provenance in the lower Palaeozoic southern Welsh Basin; a pilot study

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Authors:Morton, A. C.; Davies, J. R.; Waters, R. A.
Author Affiliations:Primary:
British Geological Survey, Keyworth, United Kingdom
British Geological Survey, United Kingdom
Volume Title:Special issue on the Palaeozoic Welsh Basin
Volume Authors:Woodcock, N. H., editor; Fletcher, C. J. N.
Source:Geological Magazine, 129(5), p.573-580; Review meeting on the Welsh Basin, Aberystwyth, United Kingdom, Nov. 15-18, 1991, edited by N. H. Woodcock and C. J. N. Fletcher. Publisher: Cambridge University Press, London, United Kingdom. ISSN: 0016-7568
Publication Date:1992
Note:In English. 35 refs.; illus., incl. sect., 1 table, geol. sketch maps
Summary:The results of a heavy mineral analysis confirm the sedimentological evidence for two distinct source areas of coarse clastic detritus, one lying to the south and the other to the east of the basin. They also provide mineralogical criteria by which the two source areas may be distinguished. The S area provided material with relatively low mineral diversity, and is characterised by low rutile/zircon ratios, whereas the E source provided more diverse assemblages, generally with high rutile/zircon ratios. There is evidence for polycyclic material and volcanic detritus in both sources. [C.H.D.]
Subjects:Basins; Clastic rocks; Heavy minerals; Llandovery; Lower Paleozoic; Lower Silurian; Mineral composition; Paleocurrents; Paleozoic; Provenance; Sandstone; Sedimentary basins; Sedimentary rocks; Silurian; Turbidite; Europe; Great Britain; United Kingdom; Wales; Welsh Basin; Western Europe
Coordinates:N513000 N533000 W0024000 W0051500
Abstract Numbers:93M/3639
Record ID:1996005471
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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