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The deposits occurring close to the roofs of magmatic masses _____________

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The deposits occurring close to the roofs of magmatic masses _____________

(a) Magmatic deposits

(b) Pegmatite deposits

(c) Hydrothermal deposits

(d) Metasomatic

The question was asked in examination.

Query is from Origin of Ore Deposits in chapter Economic Mineral Deposits of Engineering Geology

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Right option is (b) Pegmatite deposits

To explain: Pegmatite deposits are sometimes classified as a distinct group of magmatic deposits formed towards the end of crystallization process and such necessarily occurring close to the roofs of magmatic masses.

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