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Showing 1 to 7 of 7 for “"Petrological studies"”.
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The controls of radioelement distribution in the Etive and Cairngorm granites: Implications for heat production
Radiometric, whole rock trace element and petrological studies are reported for two late Caledonian granite complexes from the Grampian Highlands, Scotland. These studies throw light on the magmatic history of the intrusions and. more particularly. on their radioelement geochemistry and heat …
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Origin of the Kleva Ni-Cu sulphide mineralisation in Småland, southeast Sweden
… rocks through geochemical, geochronological and petrological studies. U-Pb age determination of zircon dates igneous crystallisation to 1.79 Ga, which is the age of the Kleva intrusive complex and confirms its temporal association with the voluminous TIB magmatism. Major- and trace element …
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Studies of volatile evolution in magmatic systems using melt inclusions
… respect to the classical whole rock approach to petrological studies. One of the most important advantages is that MI often represent sample of a deep and non-degassed melt (glass) available at Earth's surface. In fact, with the exception of deep ocean basalts, igneous whole rocks found at the …
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ADVANCED MINERALOGICAL AND CRYSTALLOGRAPHICAL TECHNIQUES FOR UNDERSTANDING TRANSFORMATION PROCESSES IN NATURAL MATERIALS AND THEIR SYNTHETIC ANALOGOUS
… HT process, representing an uncommon field for petrological studies and metamorphosed rocks: there is a lack of geological and petrological information in the field of extremely HT and LP metamorphism especially for marls and limestone, increasing the difficulties to better explain CP process. …
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Application of platinum-group element (PGE) geochemistry to select geological problems
… economic porphyry-style mineralisation. Further petrological studies on samples from Mount Hagen confirmed that the system underwent various magma mixing events, possibly remelting and assimilation. Multiple lines of evidence demonstrate that Mount Hagen is a good example of a mush zone - …
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Application of platinum-group element (PGE) geochemistry to select geological problems
… economic porphyry-style mineralisation. Further petrological studies on samples from Mount Hagen confirmed that the system underwent various magma mixing events, possibly remelting and assimilation. Multiple lines of evidence demonstrate that Mount Hagen is a good example of a mush zone - …
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Petrological and geochemical study of spilites and associated dike rocks from the Virgin Island core (Caribbean Island arc)
<p>A continuous section of extrusive and intrusive rocks have been recovered through a drill core of about 2h30 feet that was taken at St. John, U. S. Virgin Islands. The present study is confined to the upper 1180 feet and comprises a cummulative total of 950 feet of albitized mafic extrusive …