12.20.10 LithostratigraphicUnit

Topic Version1Published11/11/2016
For StandardWITSML v2.0
Type:ClassStereotype:«XSDcomplexType»

The name of a lithostratigraphy, with the "kind" attribute specifying the lithostratigraphic unit-hierarchy (group, formation, member or bed). The entry at each level is free text for the local lithostratigraphy at that level in the hierarchy. If a single hierarchy is defined, it is assumed this is at the formation level in the hierarchy and kind=formation should be used for the entry.

Used to hold information about the stratigraphic units that an interpreted lithology may belong to. These are based primarily on the differences between rock types rather than their specific age. For example, in the Grand Canyon, some of the major lithostratigraphic units are the “Navajo”, “Kayenta”, “Wingate”, “Chinle” and “Moenkopi” formations, each of which is represented by a particular set of rock properties or characteristics.

Table 12.20.10-1 Attributes

Name

Type

Notes

authority

String64

Person or collective body responsible for authorizing the information.

kind

LithostratigraphicRank

Specifies the lithostratigraphic unit-hierarchy (group, formation, member or bed).

Table 12.20.10-2 Associations

Association

Notes

From: LithostratigraphicUnit.

To: LithostratigraphicRank

Dependency

 

From: LithostratigraphicUnit.

To: String64

Generalization

 

From: WellboreMarker.

To: LithostratigraphicUnit

Dependency