New determinations of tin and tungsten in granites from South-west England

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Authors:Alderton, D. H. M.; Moore, F.
Author Affiliations:Primary:
Imperial Coll., London SW7 2BP, United Kingdom
Volume Title:Mineralogical Magazine
Source:Mineralogical Magazine, 44(335), p.354-356. Publisher: Mineralogical Society, London, United Kingdom. ISSN: 0026-461X
Publication Date:1981
Note:In English. 28 refs.; illus. incl. table
Summary:The Sn contents of granites of Devon and Cornwall determined by NAA are 12-54 p.p.m., i.e. much higher than the world average for granites (2-3 p.p.m.). Protolithionite and muscovite contained respectively 232 and 301 p.p.m. Sn (Cligga Head), and 36 and 66 p.p.m. (St. Michael's Mount). NAA determinations of W in the granites gave 9-28 p.p.m. (world average 1-2 p.p.m.), with W in protolithionite and muscovite 64 and 102 p.p.m. (Cligga Head), and 73 and 92 (St. Michael's Mount). Sn may also be present in other phases (biotite, cassiterite, epidote), the exact nature of the Sn-bearing mineral being controlled by the early, metasomatic recrystallization in the granites. [R.A.H.]
Subjects:Geochemistry; Granites; Igneous rocks; Metals; Petrology; Plutonic rocks; Tin; Trace elements; Tungsten; England; Europe; Great Britain; United Kingdom; Western Europe; Southwestern England
Abstract Numbers:82M/0419
Record ID:1982063548
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique
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