Geoscience Ontology, Geologic Features

Cavity filled with secondary minerals, denotes that cavities are filled vesicles, thus restricted to volcanic rock. Have to model as a cavity/with material. Rock hosts cavity

based on Neuendorf et al 2005

Lithosome in lithostratigraphic unit that occurs as individual beds interleaved with other constituents on the outcrop (m) scale or larger.

CGI rockbodypart vocabulary 2016-11-21

A sub-map scale sequence of strata, e.g. bouma sequence, fining-upward sequence, interbedded sandstone and mudstone... Repeated multiple times in a stratigraphic unit.

A stratigraphic section that contains a designated point in a stratigraphic sequence of essentially continuous deposition, preferably marine, chosen for its correlation potential. http://www.stratigraphy.org/upload/bak/chron.htm

Lithosome characterized by an internal sequence of units, which is repeated in a stacked sequence, e.g. fining-upward sequence, thickening upward sequence, bouma sequence.

CGI rockbodypart vocabulary 2016-11-21

Drill hole.

Primary or penecontemporaneous gap or cavity in the framework of a sedimentary rock, larger than grain-supported intersticies. May be open space or have partial to complete fill with secondary cement or introduced sediment.

based on Neuendorf et al 2005

Lithosome in a mixed/heterogeneous lithodemic unit that occurs in irregular bodies within unit

CGI rockbodypart vocabulary 2016-11-21

Lithosome in igneous or metamorphic geologic unit that occurs as layers alternating with other constituents.

CGI rockbodypart vocabulary 2016-11-21

Lithosome occurs as discrete lense-shaped bodies, not connected with other bodies.

CGI rockbodypart vocabulary 2016-11-21

Bubble-like cavity with concentric shells of finely crystalline minerals, open space remains in core of structure. Radiating fibrous structure may be present in secondary mineral fill. Typically in silicic volcanic rock.

Neuendorf et al 2005

• A kind of rock body that has multiple occurrences in a single geologic unit. A mass of rock of uniform character, characterized by geometry, composition, and internal structure. (http://inspire.ec.europa.eu/codelist/CompositionPartRoleValue/lithosome)

• Generally denotes rock mass that is the product of a particular rock forming process or related sequence of processes in the containing unit. Example--bouma sequence, point bar sequence. A particular lithosome may be characterized by the presence of blocks, but blocks are not treated as kinds of lithosome because the internal character of the blocks is determined by a separate genetic sequence from the described unit.

• In the AGI glossary (Neuendorf et al 2005) and usage found on the World Wide Web, lithosome typically denotes relatively uniform and distinctive bodies of sediment that intertongue with one another. (e.g. https://geoinfo.nmt.edu/resources/water/amp/brochures/Koning_lithS_lithA_PP_presentation.pdf; http://www.kgs.ku.edu/Publications/Bulletins/169/Dott/). This vocabulary generalizes the concept defined in Neuendorf et al 2005 to include bodies of igneous or metamorphic rock as well as sedimentary rock. NADM SLTTs (2004) used the term 'lithotope' with similar meaning for sedimentary rocks.

• Lithosome is considered a kind of Integral feature, where the host is a geologic unit, and the focal is the defining lithologic characteristics of the lithosome.

CGI rockbodypart vocabulary 2016-11-21

• gsoc:hostedByonly
  
• gsoc:hasEssentialPartsome
  
• gsoc:hostedBysome
  

• gsgf:Bed_Lithosome ^c
• gsgf:Bedding_Package ^c
• gsgf:Irregular_Lithosome ^c
• gsgf:Layer_Lithosome ^c
• gsgf:Lenticular_Lithosome ^c
• gsgf:Vein_Dike_Lithosome ^c

An irregular cavity in a phaneritic igneous rock into which small crystals of the rock-forming minerals protrude.

Neuendorf et al 2005

A boundary between a rock body and the Earth's atmosphere or a water body.

Open space between particles in a granular aggregate.

Neuendorf et al 2005, CGI GTWG vocabulary

Constraint: rock body must be a stratigraphic unit for which 'top' and 'bottom' are meaningful.

A rock object that represents a continuous strip of rock material that includes (has parts) a sequence of stratified layers.

Constraint: rock body must be a stratigraphic unit for which 'top' and 'bottom' are meaningful.

A rock object that represents a continuous strip of rock material that includes (samples) a sequence of stratified layers.

a specific interval or point in a specific sequence of rock stata that constitues the reference standard defining a stratigrphic unit or boundary

based on Salvador 1994 (International Stratigraphic Guide: Int. Union Geo. Sciences and Geol. Soc. Am.), p.26, as repored in Neuendorf et al., 2005.

• gsoc:hasRolePlayeronly
  
• gsoc:isExampleOfsome
  

Lithosome occurs as intrusive, sheet-like bodies within the unit as an essential part of the unit.

CGI rockbodypart vocabulary 2016-11-21

Cavity in volcanic rock formed by trapped gas. Use amygdule if filled with secondary mineral.

Neuendorf et al 2005

Irregular cavity in rock, generic term with no connotation of origin of cavity. May be lined with crystals of different mineral compostion to the host rock

Neuendorf et al 2005

• gsgf:Fenestra ^c
• gsgf:Miarolitic_Cavity ^c