Classification type name

Description

Bedding

In geology a bed is the smallest division of a geologic formation or stratigraphic rock series marked by well-defined divisional planes (bedding planes) separating it from layers above and below. A bed is the smallest lithostratigraphic unit, usually ranging in thickness from a centimetre to several metres and distinguishable from beds above and below it. Beds can be differentiated in various ways, including rock or mineral type and particle size. The term is generally applied to sedimentary strata, but may also be used for volcanic flows or ash layers.

Bedding thickness

Classification for the thickness of beds

Carbonate content

Classification of carbonate content of rock

Cataclasit type

Classification of cataclasit. There are many varieties of cataclasite, classified by the percentage of the volume formed from the matrix.

Compaction

In sedimentology compaction refers to the process by which a sediment progressively loses its porosity due to the effects of loading. This forms part of the process of lithification. When a layer of sediment is originally deposited, it contains an open framework of particles with the pore space being usually filled with water. As more sediment is deposited above the layer, the effect of the increased loading is to increase the particle-to-particle stresses resulting in porosity reduction primarily through a more efficient packing of the particles and to a lesser extent through elastic compression and pressure solution.

Consistency

Classification of cohesive (fine grained) soil according to is quality as a functin water content.

Construction geol. unit

UCS

Classification for description of the uniaxial compressive strength of rock.

Foliation

Classification of rock accordin to the planar structures that develop in metamorphic rocks as a result of directed pressure.

Foliation distance

Formation

Formation strength

Klassification of cohesiveness of rock that is totally divided by discontinuities. Cohesiveness is evaluated based on strengh (shear strenght, compressive strength, tensile strength)

Fragment composition

Fragment form

Classification of the form of rock fragments

Fragment size

Klassifizierung der Größe von Kluftkörpern

Fragmentation

Classification of rock according to the weathering processes as a result of chemical reactions.

Geological unit

Grain cementation

Classification for description of the cementation of mineral.

Grain shape

Classification of rocks according to the shape of the grain, which is defined as ratio of the 3 diameters and the radius of curvature.

Grain size

Classification of sediments and soil according to the size of its grains.

Granular binding

Intercalation

Karstification

Classification of calcareous rock according to its karstification

Minor rock

Plasticity

Klassification of soil according to its possibility for permanent deformation, befor fracturing

Rock

Classification of aggregates of one or more minerals or mineraloids.

Rock strength

Klassification of rock according to its strength (pressure, tensile strength, shearing strength, and other factors)

Shistosity

Stratigraphic unit

A stratigraphic unit is a volume of rock of identifiable origin and relative age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it.

Tectonical unit

Large scale classification of rock according to its tectonic origin and characteristics

Texture

Classification for desription of the texture. Texture (or rock microstructure) in geology refers to the relationship between the materials of which a rock is composed.

Tropie

Viscousness

Classification for describing the ciscousness of soil.

Water content

Classification to describe the water content of soil or loose sedimentary rock.

Water sensitivity

Classificatin of influence of water on the chemical and physical characteristics of the rock.

Weathering

Classification of reactions of the rock to exegenous factors.