Characterization of Microtextures formed by Chemical Weathering in Crystalline Rocks and Implications for Rock Mechanics
نویسندگان
چکیده
منابع مشابه
Geochemistry of the Paleocene Sediments from SW Ahar: Implications for Provenance, Tectonics and Source Rock Weathering
The mineralogy and geochemistry of Paleocene shales and interbedded siltstones in the southwestern of Ahar town (NW Iran) were studied by optical microscopy, XRD, SEM, XRF, and ICP-MS techniques. The mineralogical composition, mainly characterized by calcite, quartz, feldspar, dolomite, muscovite, magnesiohornblende, chlorite, illite, montmorionite, palygorskite, and koninckite, suggests relati...
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Chemical weathering indices applied to weathering profiles developed on heterogeneous felsic metamorphic parent rocks
Chemical weathering indices are commonly used for characterizing weathering profiles by incorporating bulk major element oxide chemishy inlo a single metric for each sample. Generally, on homogeneous parent rocks, weathering indices change systematically with depth. However, the weathering of heterogeneous metamorphic rocks confounds the relationship between weathering index and depth. In this ...
متن کاملThe effect of rock composition on cyanobacterial weathering of crystalline basalt and rhyolite.
The weathering of volcanic rocks contributes significantly to the global silicate weathering budget, effecting carbon dioxide drawdown and long-term climate control. The rate of chemical weathering is influenced by the composition of the rock. Rock-dwelling micro-organisms are known to play a role in changing the rate of weathering reactions; however, the influence of rock composition on bio-we...
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ژورنال
عنوان ژورنال: The Journal of Engineering Geology
سال: 2011
ISSN: 1226-5268
DOI: 10.9720/kseg.2011.21.4.381