| Name | Stratigraphic_Surface |
|---|---|
| Entity Type | View |
| Description | A surface of contact between rock units in a stratigraphic sequence. They include both nonconformities and conformities. |
| Submodel | Geology |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | Standard_Geologic_Surface , Name , Source , Existence_Kind , Version , GUID |
| Generalizations | Geologic_Surface , Geologic_Feature , Feature , Entity , IT_Object , Tracked_Object |
| Specializations |
| Name | Value Domain | Property / Storage Unit | Description | Required / Default | Type |
|---|---|---|---|---|---|
| Contact_Distinctness | CONTACT_TYPE | NA |
The sharpness of the contact or interface between stratigraphic surfaces. Examples are abrupt, gradual, graded and cyclical. | No |
VARCHAR2(64) |
| Default_Color | COLOR_RGB | NA |
Default color to be used when rendering this geologic feature. | No |
VARCHAR2(64) |
| Existence_Kind | REF_EXISTENCE_KIND | NA |
A reference value that describes the state of existence in the lifecycle of the entity, for example, Planned, Predicted, Required, Simulated, and Actual. | Yes Actual |
VARCHAR2(64) |
| GUID | STRING128 | NA |
Globally Unique IDentifier for an instance of a class. USAGE NOTES: There are two cases: 1) GUID is not populated or used; and 2) it is populated with a value that is globally unique. If the GUID is populated there are two means of doing so for a given project: 2a) Seabed automatically generates and populates the GUID when an instance is created (valid only on Oracle based systems); and 2b) the GUID is generated and populated by an application (other than Seabed) on instance creation. Whether Seabed automatically generates GUIDs for a project is determined by the Auto_GUID flag in SDS_Account. Note that techniques 2a and 2b can coexist in the same project. When GUIDs are automatically generated an application can override the automatically generated GUID with its own GUID by simply supplying the GUID value. Applications that generate their own GUIDs and populate the GUID column will function correctly on projects which have automatic GUID generation turned on. | No |
VARCHAR2(128) |
| Geologic_Age | double | Geologic_Time Ma |
The minimum geologic age of the feature in millions of years. | No |
NUMBER |
| Geologic_Age_Duration | double | Geologic_Time Ma |
The duration of the geologic event. | No |
NUMBER |
| Id | ID | No_Unit |
Unique identifier for this entity. | Yes |
NUMBER(38) |
| 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) |
| Lower_Surface_Relation | LOWER_SURFACE_RELATION | NA |
The type of relationship between a surface and the internal surfaces of the layer below. For example, the internal surfaces in contact with this stratigraphic surface from below may be either Conformable, Erosion or Toplap. | No |
VARCHAR2(64) |
| Name | ENTITY_NAME | NA |
The name given to any object or data item, e.g. name of Well, name of Field, etc. | No |
VARCHAR2(255) |
| Observation_Basis | CODE | NA |
The method for identifying the existence of this surface. Examples are seismic data, log contact, core analysis, and produced fluids. | No |
VARCHAR2(64) |
| Original_Source | STRING64 | NA |
The name of the person, Organization or project source that originally provided this entity, e.g. "IHS-EnergyData" or "FinderUpper Stratton Deeper Pool 15" | No |
VARCHAR2(64) |
| Produced_By | STRING64 | NA |
The name of application role that created the entity, for data created programmatically. | No |
VARCHAR2(64) |
| Remarks | STRING2000 | NA |
Any type of remarks added to an entity instance. | No |
VARCHAR2(2000) |
| SDAT_Label | int | No_Unit |
Label used by the security system for entitlements. SDAT is Secure Data Access Technology. | No |
NUMBER(10) |
| Source | STRING64 | NA |
Name of the person or organization responsible for this entitys E and P content and quality. Not the data technologist or IT expert creating the entity, for which see IT_Object.Insert_User and Update_User. | No |
VARCHAR2(64) |
| Standard_Geologic_Surface | R_Geologic_Surface |
|
A code for the standard or formal geologic surface name. | No |
VARCHAR2(64) |
| Strat_Surface_Type | R_Strat_Surface |
|
The classification system for this stratigraphic surface. For example, Bio, Chrono, Facies and Litho. | No |
VARCHAR2(64) |
| Sub_Type | Meta_Entity |
|
Sub type of Geologic_Surface | No |
VARCHAR2(30) |
| Unconformity_Flag | boolean | NA |
A flag indicating if the surface is an unconformity or a conformable boundary in a continuous geologic sequence. An unconformity has a value: Y = 1 while a normal continuous deposition sequence has a value of N = 0. | No 0 |
NUMBER(1) |
| 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) |
| Upper_Surface_Relation | UPPER_SURFACE_RELATION | NA |
The type of relationship between a surface and the internal surfaces of the layer above. For example, the internal surfaces in contact with this stratigraphic surface from above may be either Conformable, Downlap or Onlap. | No |
VARCHAR2(64) |
| Version | STRING255 | NA |
The form or variant of the entity. | Yes 1 |
VARCHAR2(255) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Geologic_Layer | Base_Strat_Surface | Reference to the unique identifier of the base bounding surface. | Restrict | No |
| Geologic_Layer | Top_Strat_Surface | Reference to the unique identifier of the top bounding surface. | Restrict | No |
| Marker_DOV | Stratigraphic_Surface | READ ONLY: Unique identifier for the Stratigraphic Surface. | Cascade | No |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Standard_Geologic_Surface | R_Geologic_Surface | _ | Restrict | No |
| Strat_Surface_Type | R_Strat_Surface | The classification system for this stratigraphic surface. For example, Bio, Chrono, Facies and Litho. | Restrict | No |