| Name | R_Lithology |
|---|---|
| Entity Type | Table |
| Description | A reference table that stores valid lithology types. Lithology types describe the classification of rocks on the basis of key characteristics, generally including mineralogical composition and grain size. |
| Submodel | Reference |
| Entity Scope | Reference |
| Primary Key | Code |
| Natural Key | Code |
| Generalizations | Reference_Entity , Reference_Entity_Parent |
| Specializations |
| Name | Value Domain | Property / Storage Unit | Description | Required / Default | Type |
|---|---|---|---|---|---|
| Active_Flag | boolean | NA |
1 = use without restriction. 0 = avoid use - the value has been deprecated and may be removed in a later release. | Yes 1 |
NUMBER(1) |
| Classification | ROCK_CLASS | NA |
The basis or organizing principle for the rock classification scheme. Some examples include, Chemical, Volcaniclastic, and Siliciclastic. | No |
VARCHAR2(32) |
| Code | CODE | NA |
A standard abbreviation, mnemonic, or short code that represents the reference value. | Yes |
VARCHAR2(64) |
| Description | STRING2000 | NA |
A textual definition of the reference value. | No |
VARCHAR2(2000) |
| Display_Pattern | R_Lithology_Pattern |
|
The pattern used to represent this type of lithology. | No |
NUMBER(38) |
| Genesis | ROCK_GENESIS | NA |
The origin or rock formation process for this lithology. Examples are; Sedimentary, Igneous or Metamorphic. | No |
VARCHAR2(32) |
| Insert_Date | DATE | NA |
Date the entity was created in the repository | No |
DATE |
| Insert_User | STRING64 | NA |
The name of the user responsible for the creation of this entity in the repository. | No |
VARCHAR2(64) |
| Name | STRING255 | NA |
The spelled-out name of the reference value. | No |
VARCHAR2(255) |
| Remarks | REMARKS_STR | NA |
Remarks | No |
VARCHAR2(999) |
| Source | CODE | NA |
The person, company or application that defined or specified the data (content) for this instance and is considered to be responsible for it. For example, POSC, EPSG, API, ISO, etc.. | No |
VARCHAR2(64) |
| Subclassification | ROCK_SUBCLASS | NA |
A refinement of the rock classification scheme into a specific area or domain. Some examples include, Carbonate, Evaporite, and Silicate. | No |
VARCHAR2(32) |
| Update_Date | DATE | NA |
Date of the most-recent modification to the entity. | No |
DATE |
| Update_User | STRING64 | NA |
The name of the user responsible for the last modification to this entity. | No |
VARCHAR2(64) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Borehole_Zone | Primary_Lithology | A value that represents the predominant lithology of the borehole zone. Examples include Sandstone, Shale, Limestone. | Restrict | No |
| Geologic_Layer | Primary_Lithology | The primary lithology that defines this Geologic Layer. An example is Chalk for the Austin Chalk Formation. | Restrict | No |
| Lithology | Lithology_Type | A value that represents the predominant lithology of the sample. Examples include Sandstone, Shale, Limestone. | Restrict | Yes |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Display_Pattern | R_Lithology_Pattern | The pattern used to represent this type of lithology. | Restrict | No |