View source for OR/14/028 Model datasets

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{{OR/14/028}}
''<u>Digital Terrain Model (DTM)</u>''

Used as a reference dataset. The DTM source was NextMap at a 200 m cell size resolution. A surface was then created from extracted points. Optimisation was performed to produce more triangles in areas of more detail.

''<u>Borehole data</u>''

Boreholes used to construct the modelled surfaces are listed in the Weald Report (Chadwick et al., 1983<ref name="Chadwick">CHADWICK, R A, EVANS, C J, HOLLOWAY, S, KIRBY, G A, LAMB, R C, PENN, I E, and SMITH, N J P. 1983. Hydrocarbon prospectivity of the Weald and Eastern English Channel. ''Institute of Geological Sciences (BGS)'', DP/83/3. </ref>). No extra boreholes were used and the surfaces described in this report are based on structural contour data from the report.

''<u>Map data</u>''

The map data were generated directly from the Weald Report (Chadwick et al., 1983<ref name="Chadwick"></ref>) and cross-referenced with DigMap GB 1:250 000.

''<u>Mine plan data</u>''

No mine plan data were used.

''<u>Seismic data</u>''

Seismic data were interpreted and used in the generation of the contour data in the Weald Report (Chadwick et al., 1983<ref name="Chadwick"></ref>).

''<u>Geophysical data</u>''

Please see Chadwick ''et al ''(1983)<ref name="Chadwick"></ref>

==GOCAD® objects==
The following objects relate to the project specific data types within the GOCAD® project file. Each of the horizon datasets will have a pre-cursor number to identify it using the schema:
: 1 – Base Tertiary
: 2 – Base Lower Greensand 
: 03 – Top Corallian
: 4 – Top Cornbrash
: 5 – Top Penarth Group
: 6 – Top Variscan Basement

===Pointset — GOCAD® project ===
* Contains all of the structural contours, derived from the modelled surfaces, as points (e.g. 01_Weald_Base_Tertiary_Structural_Contour_Points_vs)

===Group — GOCAD® project ===
* EastMidlands_faults – contains all of the fault surfaces generated through the Structural Modelling workflow (e.g. weald_WLDF_001_ts).
* EastMidlands_Raw_faults – contains the 'grouped' fault data used for fault surface creation.
* EastMidlands_Raw_Data – contains the contour and crop data used for surface modelling, borehole data points, and the 'pre-grouped' fault cut data used for fault modelling

===Surface — GOCAD® project ===
* Contains those surface horizons that have been clipped to the combined outcrop and subcrop for that horizon (01_Weald_Base_Tertiary_ts)
* Other datasets include the DTM derived from the CEH DTM at 200 m resolution

==Reference==


[[category: OR/14/028 Metadata report for the Weald Basin 1:250 000 resolution geological model | 05]]