Definitions b

Definitions B
Batholith A batholith is an irregular mass of coarse-grained, intrusive igneous rock that has an exposed surface of more than a hundred square kilometres. Batholiths form deep within the Earth's crust, many kilometres beneath the surface. With time, the overlying rocks erode, exposing the rock of the batholith.
Biological or Organic sedimentary rock A sedimentary rock in which the sourse of material to make the rock comes mainly from living organisms.

Definitions C

Chemical Sedimentary rock
A sedimentary rock includes the evaporites(from evaporated sea water),

Limestone, calcite, halite and jasper (chert) are all examples of chemical sedimentary rocks

Clast are bits and pieces of other rock. Clast is always from nonliving (inorganic) sources.

Clastic sedimentary rock
A rock composed of broken pieces of older rocks

This conglomerate is a good example of a rock made from bits and pieces of other rock

Cleavage it the tendency of a rock or mineral to break along flat or plane surfaces.

Biotite Mica is an example of a mineral with perfect cleavage.

Contact metamorphism occurs locally, at and near the contacts between intruding magma and the surrounding " host" rock. The heat introduced by the intrusion controls the metamorphism. The effects of increased temperature are most obvious where intrusions occur at shallow levels. There, the difference in temperature between the host rock and intrusion are at a maximum. Contact metamorphism commonly produces fine-grained rocks called hornfels.

Crystal

Definitions D

Deposition

The dumping or deposit of sedimentaery materials anywhere that water or wind is forced to slow down. (The place where this dumping occurs is called an area of deposition)

Definitions F
Foliation Layering in some rocks caused by parallel alignment of minerals; textural feature of some metamorphic rocks. this layering produces rock cleavage. The picture shows well defined foliation in gneiss. The parent rock (Rock this was formed from) was granite.