NMBGMR Draft Geologic Data Model - v. 0.951
JOINED & RELATED TABLES: Sample Data

revised: 09-Jun-2008

Table Name: Samples

This table is just an example of a generic sample analysis table that could be linked to Data_point. It is assumed that it will have a user defined structure and will relate to spatial entities via StationID. The following is an example of such a table.

Field Name Field Alias Length Field Type Field Value Default Allow Nulls? Pick List / Examples Notes
StationID " 20 text variable undefined n ID of station location  
LargrFeatr LargerFeature 50 text variable [null] y related faults, ash beds, marker layers, or other features plaintext related larger features/geologic units (could apply to other points, lines, or polygons, so the form of a database relate in unclear)
Strike " 3 Short Integer variable [null] y [null], 256 (right hand rule azimuth of strike)  
DipDir DipDirection 3 Short Integer variable [null] y [null], 166  
Dip " 2 Short Integer variable [null] y [null], 45  
Younging " 16 text pick list [null] y unspecified, upright, overturned  
ThinSect ThinSection 1 text pick list [null] y [null], Y Thin section made ?
Geochron " 1 text pick list [null] y [null], Y Geochron done?
Geochem " 1 text pick list [null] y [null], Y Geochemistry analysis done?
WholeRock " 1 text pick list [null] y [null], Y Whole rock chemsitry done?
Paleontlgy Paleontology 1 text pick list [null] y [null], Y Paleontology done?
Pmag " 1 text pick list [null] y [null], Y Palemagnetic analysis done?
OtherAnlys OtherAnalysis 16 text variable [null] y other analysis type (e.g. air permeametry, etc.)  
DataType " 16 text variable [null] y extensible data type: e.g. grainsize, clast count  
Data " 12 float variable [null] y [null]  
DataSubtyp DataSubtype 16 text variable [null] y [null], sample depth etc.  
SubData " 12 float variable [null] y [null]  
DataAccur DataAccuracy 12 text pick list / var [null] y good, fair, poor accuracy of measurement
DataPrecis DataPrecision 12 text pick list / var [null] y ? precision of measurement
DataConfid DataConfidence 16 text pick list [null] y unspecified, certain, probable, uncertain confidence of measurement
LocAccType LocAccuracyType 16 text pick list / var [null] y precision gps, handheld gps, good topo, poor topo, planimetric, survey accuracy of position
LocAccMeas LocAccuracyMeasure 16 text pick list / var [null] y EPE(m), PDOP, Map and compass, triangulation  
LocAccVal LocAccuracyValue 8 float variable [null] y 15  
SourceID " 50 text variable [null]   unknown; unspecified; Smith, 2006b [variable] feature level metadata (who mapped this); related to bibliographic detail
Comments " (max) text variable [null] y