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2018-03-15T10:18:01Z

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__NOTOC__
{{OR/18/010}}

{|
|- style="vertical-align:top;"
| Envelope
| Defined here as the extent of a geological deposit in plan view (2D): forming a distribution map of the particular unit, a presence — absence map. May include an area of outcrop, subcrop or a combination of both
|-style="vertical-align:top;"
| style="width:120px;" | Grid
| An exported surface or thickness as a gridded object with a specified cell size
|-style="vertical-align:top;"
| GSI3D
| The Geological Surveying and Investigation in 3-D software and methodology
|-style="vertical-align:top;"
| Helper
| A sections used to constrain the calculation in areas of few sections or thin units such as Alluvium or Head
|-style="vertical-align:top;"
| Section
| Defined here as a vertical x, z plane attributed with correlation lines
|-style="vertical-align:top;"
| Surface
| Base or top of a geological unit exported as a grid or TIN
|-style="vertical-align:top;"
| TIN
| Triangular Irregular Network. GSI3D exports TINs in Indexed Triangle Mesh format (VRML97)
|-style="vertical-align:top;"
| Triangulation
| A form of interpolation (Delauney) that uses TINS in GSI3D to form the base and top surfaces of a unit
|-style="vertical-align:top;"
| Unit
| A geological unit is a particular geological deposit that has been identified and mapped out during a GSI3D project. A unit is defined by its basal surface in sections and an envelope of its lateral extent. The top of the unit is back calculated during
|}

[[Category:OR/18/010 Post-calculation checks on GSI3D Models V2| 05]]

OR/18/010 Glossary - Revision history

Dbk: 1 revision imported

Dbk at 16:18, 12 March 2018