Correlations Among Mineralogical and Specific Gravity Data from a Granodiorite Pluton
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Mineralogical and Geochemical characteristics of "Khezr-Abad pluton" NW of Taft, Iran.
Khezr-Abad pluton is cropped out in North-West of Taft. This granitoid seems to be younger than the surrounding metamorphosed rocks, particularly the lower cretaceous limestones and probably is implaced during Oligo-Miocene. The most volumetric abundances of the igneous rocks are: granodiorite, granite, quartzmonzo-diorite, quartz-diorite, and in a lesser amount tonalite, quartz-syenite and ...
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A megacrystal granodiorite, occurring in a pluton in the Monterey peninsula of California, is gradational south to quartz monzonite and then to tonalite and trondhjemite and southeast to granodiorite and then to tonalite. A primary magmatic origin for the pluton is indicated by normally zoned plagioclase crystals and by dikes that extend into biotite-hornblende quartz diorite southeast of Point...
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The major, trace element, and Li isotopic compositions of granodiorite and metapelites from the Onawa pluton and surrounding contact aureole have beenmeasured to document the behavior of Li and its isotopes during progressive metamorphic dehydration. Major and trace element concentrations inmetapelites of the contact aureole change little, while loss on ignition (LOI) decreases with increasing ...
متن کاملEarth's youngest exposed granite and its tectonic implications: the 10–0.8 Ma Kurobegawa Granite
Although the quest for Earth's oldest rock is of great importance, identifying the youngest exposed pluton on Earth is also of interest. A pluton is a body of intrusive igneous rock that crystallized from slowly cooling magma at depths of several kilometers beneath the surface of the Earth. Therefore, the youngest exposed pluton represents the most recent tectonic uplift and highest exhumation....
متن کاملتعیین سن مجموعهی نفوذی لخشک به روش اورانیوم-سرب روی کانیهای زیرکن و تیتانیت، شرق ایران
The Lakhshak intrusive assemblage consisting of a granodiorite pluton and monzodiorite and dacite dykes are parts of Zahedan-Saravan granitoid belt which cover about 90.5 km2.. Dykes are parallel with NE-SW trends and comprise about 20-30 percent of the pluton. The granodiorite plutonis granular in texture and comprises mainly consists of plagioclase, K-feldspar, quartz, green hornblende, and...
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تاریخ انتشار 2017