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Gurmeet Singh posted an Question
December 18, 2020 • 15:50 pm
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30 points
30 points
- IIT JAM
- Geology (GG)
189. which of the following rock is least effected by chemical weathering processes? a. shale b. granite c. basalt d. limestone
189. Which of the following rock is least effected by chemical weathering processes? A. Shale B. Granite C. Basalt D. Limestone /SAGAP LINI/EPCITV 201s
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Owishi Sarkar Best Answer
Shale may comprise of many minerals including those of feldspar, iron rich minerals, sulphide minerals and even carbonate rich minerals, all of which are not very stable at surface conditions. Like illite, one of the clay minerals itself is not much stable and may form a more stable kaolinite. So, in general it can be said that shale will be more prone to chemical weathering than granite but obviously the exact composition of both the rocks may be required to be studied to comment on this accuratey.