منابع مشابه
Mesonorms of granitic rock analyses
SINCE Cross, Iddings, Pirsson, and Washington 09o3) first published their system of deriving normative minerals from chemical analyses, the CIPW norm has been successfully used to identify, compare, and classify trends in igneous rocks with similar or differing mineral compositions. The norm has been used for metamorphic rocks and rocks of somewhat uncertain mode of origin (Bowes, ~967). Variou...
متن کاملTemperature effect on compression and collapsibility of residual granitic soil
This research aims to investigate the effect of temperature changes on the compression index and collapse potential of the residual granitic soil that is widely encountered in Malaysia. An experimental study was conducted on the compacted soil using a modified temperaturecontrolled oedometer. Temperatures of 27, 40, and 60 oC were applied on two series of soil specimens with different values of...
متن کاملMineral Chemistry of Chlorite Replacing Biotite from Granitic Rocks of the Canadian Appalachians
Chlorite flakes, as a product of alteration of biotite, the dominant ferromagnesian mineral in the Paleozoic granitic rocks of the Canadian Appalachians, have been analyzed by electron microprobe for major elements and by 57Fe M?ssbauer spectroscopy for the coordination and oxidation state of Fe. Comparison of M?ssbauer Fe3+/Fe ratios obtained from chlorite and its host biotite indicates that c...
متن کاملSubsurface microbial diversity in deep-granitic-fracture water in Colorado.
A microbial community analysis using 16S rRNA gene sequencing was performed on borehole water and a granite rock core from Henderson Mine, a >1,000-meter-deep molybdenum mine near Empire, CO. Chemical analysis of borehole water at two separate depths (1,044 m and 1,004 m below the mine entrance) suggests that a sharp chemical gradient exists, likely from the mixing of two distinct subsurface fl...
متن کاملThe origin of the granitic sheets and veins in the Loch Coire migmatites, Scotland
IN a previous account (Brown, ~967) of the granitic sheets and veins in the Loch Coire migmatite complex, a metasomatic origin was postulated. This has now been confirmed by new analyses. Read (I93I) described the Loch Coire complex as made of three zones; one of unmigmatized meta-sediments, one of granitic veins and one of 'injection' or migmatite. The sheets and veins of granite (sensu lato),...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1961
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1961.tb00428.x