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  • Geology Files for Production of a Fence Diagram

Geology Files for Production of a Fence Diagram

Geology Files for Production of a Fence Diagram

Discussion of Geology Files for Fence Sections

Files used to create fence diagrams contain only those borings that the user wishes to include on an individual cross section of the fence, in the order that they will be connected along the section. The resulting set of files includes one .geo file for each cross section that will be included in a fence diagram. The order of the boring listings determines the connectivity of the fence diagram, and must match the order of the borings in the associated chemistry file when chemistry is to be displayed on the diagram. The data for the boring(s) at which individual sections will be joined to produce the fence diagram are included in each of the cross section files that will intersect. Generally, it is easiest to create the geology file for the complete 3-D dataset, and then cut and paste the individual section files from the complete file. Examples of a 3-D geology file and a typical set of fence diagram files are presented below.

The format of the data in the file is exactly the same as for 3-D geology files. Material colors are not supported for fence diagrams.

An example set of files for producing a fence diagram with two merged cross sections are shown below:

Geology File for Cross Section A-A'











Elevation

feet










7

8










11086.52

12830.67

2500

2496

2484

2479

2420

2417.5

2415

2395

BOR-49

11199.04

12810.16

2501

2492

2482

2473

2420

2414.5

2409

2397

BOR-51

11259.67

12819.29

2502

2492

2479

2467

2425

2419.5

2414

2399

BOR-46

11298

12808.63

2503

2492

2492

2480

2424

2413.5

2403

2392

BOR-52

11414.4

12781.1

2504

2491

2482

2471

2420

2416.3

2412

2396

BOR-34

11427

12780.9

2501

2493

2477

2467

2424

2415.0

2406

2397

BOR-42

11496.34

12753.59

2502

2492

2480

2465

2422

2416.5

2411

2400

BOR-53

          

Geology File for Cross Section B B'











Elevation

feet










5

8










11209.35

12993.94

2502

2492

2481

2462

2423

2415

2410

2400

BOR 57

11251.30

12929.27

2503

2493

2474

2465

2422

2414

2406

2397

BOR 75

11248.75

12870.91

2501

2492

2483

2472

2421

2416

2411

2396

BOR 48

11199.04

12810.16

2501

2492

2482

2473

2420

2414

2409

2397

BOR 51

11211.87

12710.75

2503

2493

2480

2468

2422

2420

2415

2399

BOR 50

This example fence diagram contains two cross sections, with elevations for the surface and the bottoms of seven layers of geology in each. Section A-A' has seven borings that will be used to define it, and Section B-B' has five borings. Neither of the sections contains layers that pinch out, and all of the borings extend to the depth of the fence. Note that the entries for location BOR-51 are identical in each file, and are placed such that the sections will cross at the second location in the A-A' file, and the fourth location in the B-B' file. The user will typically use a basemap to plan the orientations and intersections of the fences. EVS does not impose any restrictions on the number of borings in or placement of sections in fence diagrams, but planning should be done to assure that most sections of the fence can be viewed from a chosen viewpoint.

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