Wayground Terms for Research

Front

The relatively old and geologically stable interior of a continent.

Back

craton

Front

Used to describe a smoothly curved surface on a rock or mineral; characteristic of quartz and obsidian.

Back

conchoidal

Front

An underground excavation formed by the extraction of ore.

Back

strope

Front

A sediment-filled continental rift that trends at a high angle to the adjacent continental margin or orogeny.

Back

aulacogen

Front

Describes materials formed, eroded, or deposited by or related to the action of wind.

Back

aeolian

Front

All processes by which snow and ice are lost from a glacier, including melting, evaporation, wind erosion, and calving.

Back

ablation

Front

Describes a structure in a rock, such as bending, breaking, or crushing of minerals, that results from extreme stress during metamorphism.

Back

cataclastic

Front

A fine-grained metamorphic rock composed of a mosaic of grains without preferred orientation that have the same or nearly the same diameter in all directions.

Back

Hornfels

Front

Describes the texture of an igneous rock in which small grains of one mineral are irregularly scattered within a typically anhedral larger crystal of another mineral.

Back

Poikiltic

Front

The formal lithostratigraphic unit next in rank above formation.

Back

Group