PEnum_Weathering

Natural language names

Constants

Name	Description
FRESH	No visible sign of weathering/alteration of the rock.
DISCOLOURED	The colour of the original fresh rock is changed and is evidence of weathering/alteration. The degree of change from the original colour should be indicated. If the change is confined to particular mineral constituents, this should be mentioned.
DISINTEGRATED	The rock is broken up by physical weathering, so that bonding between grains is lost and the rock is weathered/altered towards the condition of a soil in which the original material fabric is still intact. The rock material is friable but the mineral grains are not decomposed.
DECOMPOSED	The rock is weathered by the chemical alteration of the mineral grains to the condition of a soil in which the original material fabric is still intact; some or all of the mineral grains are decomposed.