Q. What is the approximate percentage of silica present in the igneous rocks?

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Q. Pick the option which does not determine the texture of igneous rocks.

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Q. The texture which the characteristics in between granitic and felsitic are ______________

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Q. What is the texture called when large-sized crystals are embedded in fine grained matrix?

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Q. The cause which is not influencing the porphyritic texture is ______________

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Q. What is the absolute reverse of porphyritic texture?

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Q. What is the term when augite has inclusions of plagioclase felspar?

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Q. The development of ophitic texture is completely understood.

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Q. Which texture indicates the flow of magma during its formation?

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Q. Example of directive texture is ______________

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Q. The texture which involves polygonal or trigonal spaces in rocks is ______________

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Q. What is it called when two or more minerals crystallize simultaneously in a limited space?

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Q. Form of igneous rock where magma is injected and cooled along planes of host rocks is ______________

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Q. Pick the type of concordant body among the following.

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Q. The type of concordant body whose thickness is much smaller than its length and width is ______________

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Q. The upper and lower margins of sills are relatively ______________

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Q. Sills in length are restricted to hundreds of metres.

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Q. Most common rocks composing the sills are ______________

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Q. The small sized intrusives that occupy bends in the folds are called ______________

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Q. The concordant bodies associated with structural basins are ______________

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