Crustal melting and the genesis of isotopically and chemically zoned plutons in the Southern Uplands of Scotland

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Authors:Halliday, A. N.
Author Affiliations:Primary:
Scott. Univ. Res. React. Cent., Glasgow G75 0QU, United Kingdom
Other:
Univ. Glasgow, United Kingdom
Volume Title:Migmatites, melting and metamorphism; Proceedings/Meeting High grade metamorphism, migmatites and melting of the Geochemical Group of the Mineralogical Society of the University of Glasgow
Volume Authors:Atherton, M. P., editor; Gribble, C. D.
Source:p.54-61; Geochemical Group of the Mineralogical Society; meeting, Glasgow, United Kingdom, Apr. 1982, edited by M. P. Atherton and C. D. Gribble. Publisher: Shiva Publ., Nantwich, United Kingdom
Publication Date:1983
Note:In English; illus.
Summary:A model for the origin of zoned granitic plutons in S Scotland is proposed to explain their isotopic variability and their intra- and inter-plutonic progressions from I-type to S-type characteristics. It is suggested that magmas of intermediate composition from the mantle and/or lower crust are emplaced into the middle crust and crystallize from the margin inwards. These magmas would partially melt country-rock sediments which would then mix with felsic differentiates to form a buoyant mass which could intrude the hot plastic core of the pluton. [R.A.H.]
Subjects:Alkaline earth metals; Chemical composition; Continental crust; Crust; Geochemistry; Granites; Igneous rocks; Intrusions; Isotopes; Melting; Metals; Models; O-18/O-16; Oxygen; Petrology; Plutonic rocks; Plutons; Sr-87/Sr-86; Stable isotopes; Strontium; Zoning; Europe; Great Britain; Midland Valley; Scotland; United Kingdom; Western Europe
Abstract Numbers:84M/1717
Record ID:1987023040
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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