21 Terms
Home > Industry/Domain > Earth science > Geology
Geology
The science that comprises the study of the solid Earth and the processes by which it is shaped and changed.
Industry: Earth science
Add a new termContributors in Geology
Geology
magnetite
Earth science; Geology
Iron oxide mineral (Fe3O4). Usually tiny black, metallic crystals. Magnetite will attract a magnet and sometimes, in a rock, a hiker's compass needle.
carbonic acid
Earth science; Geology
A mild acid formed when water and carbon dioxide chemically combine in the atmosphere and soil.This acid is a very important component in the development of cave decorations (speleothems).
calcareous
Earth science; Geology
A descriptive term used for rocks and other earth materials that have an abundance of calcium carbonate (CaCO3). For example, a calcareous sandstone has up to 50% calcium carbonate.
lichenometry
Earth science; Geology
A dating method that uses the growth rate of certain lichen species as an indicator of the age of the surface the lichen is growing on.
Gondwana
Earth science; Geology
A continent formed in the Southern Hemisphere during the Late Paleozoic. It included most of South America, Africa, India, Austrailia, and Antarctica.
shale
Earth science; Geology
A sedimentary rock that is made of hardened clay, silt, or mud. Shale has many layers and splits easily into slabs.
spreading ridge
Earth science; Geology
An area where two of the Earth's plates are moving away from each other is called as spreading ridge.
