The petrogenesis and geochemistry of the dioritic complexes south of Balmoral forest, Angus

Jarvis, Kym E. (1987) The petrogenesis and geochemistry of the dioritic complexes south of Balmoral forest, Angus. Doctoral thesis, City of London Polytechnic.

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Abstract / Description

The Glen Doll and Juan Jorge Complexes are two contrasting late Caledonian calc-alkaline plutons intruded into Middle Dalradian metasediments at the northern end of Glen Clova, in the Angus district of Tayside, Scotland. The Glen Doll Complex (12 km squared) constitutes a wide range of rock types from olivine gabbro, through diorite to adamellite. The bulk (> 80%) of the succession consists of heterogeneous hornblende- and pyroxene-bearing diorites. Partially assimilated rafted metasedimentary xenoliths, are common in the intermediate rock types. The basic rocks are cumulates which display wall-parallel layering. Mineralogical variation displays a transition from pyroxene-dominated anhydrous assemblages to amphibole-dominated assemblages. The diorites by contrast display floor-parallel layering and typically contain cumulate magnetite and ilmenite. Petrographic and mineralogical data suggests that fractionation played an important role in the evolution of the cumulate rocks.

Item Type:	Thesis (Doctoral)
Additional Information:	uk.bl.ethos.376676
Uncontrolled Keywords:	Geology; Tayside (Scotland); Angus (Scotland)
Subjects:	500 Natural Sciences and Mathematics > 550 - Earth Sciences
Department:	School of Human Sciences
Depositing User:	Mary Burslem
Date Deposited:	18 Sep 2018 13:52
Last Modified:	18 Sep 2018 13:52
URI:	https://repository.londonmet.ac.uk/id/eprint/3134

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