CoachAn I-type granite is a granite whose source was dominantly an older igneous rock, an S-type granite one whose source was dominantly a sedimentary (metasedimentary) rock, and an M-type granite one derived from the mantle. An A-type granite is defined by its chemistry and setting rather than its source: ferroan and potassic, strongly enriched in incompatible elements, and emplaced in stable intra-plate, back-arc or post-collisional settings.
বইগুলো এখনো বাংলা ভাষায় পাওয়া যায় না — ইংরেজি সংস্করণ দেখানো হচ্ছে।
Earth and Space Sciences · পরিভাষা
Granite typology কী?
অন্য নাম: I-type granite · S-type granite · A-type granite