GENERAL GEOLOGY

Detailed explanation-1: -Detailed Solution. The correct answer is Dolomite . Dolomite is a sedimentary carbonate rock. Metamorphic rocks are rocks that have been changed from their original form by immense heat or pressure.

Detailed explanation-2: -Phyllite is a foliated metamorphic rock rich in tiny sheets of sericite mica. It presents gradation in degree of metamorphism ranging between slate and mica schist. The color varies between black and gray to greenish-gray (Fig. 7.11).

Detailed explanation-3: -Non-foliated metamorphic rocks do not have a layered or banded appearance. Examples of nonfoliated rocks include: hornfels, marble, novaculite, quartzite, and skarn.

Detailed explanation-4: -Nonfoliated metamorphic rocks lack foliated texture because they often lack platy minerals such as micas. They commonly result from contact or regional metamorphism. Examples include marble, quartzite, greenstone, hornfel, and anthracite.

Detailed explanation-5: -Foliated Textures Mineral grains from pre-existing rocks are oriented parallel to each other or organized into distinctive bands during metamorphosis. Examples of foliated textures include slaty, phyllitic, schistose, and gneissic. Rocks with a slaty texture are fine-grained.