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One of the great benefits of RockWorks is the quick volume calculations available through the RockPlot3D viewer. As the user adjusts the isosurface or filter settings (for example, to isolate material above a contamination threshold), the program returns a volume in cubic meters or cubic feet, depending on the project units. Let’s say that you then want to calculate the mass of contamination within the project? This takes a little bit more thought on the user’s p
Alison Alcott
Creating a Borehole Database
A series of exploration boreholes were drilled. Samples were taken every five feet and sieved in order to determine the relative percentages of sand, gravel and clay (or other non-sand/gravel material). These samples were restricted to the interval below the base of the soil profile and the top of the bedrock. The borehole locations, stratigraphy (see Table 1), and sieve analyses (see Table 2) were then entered into a relational database.
James P. Reed
Abstract
The visualization of earthquake data in conjunction with surface imagery is an ideal application for three dimensional computer software. Downloading earthquake epicenter data, satellite imagery, and surface topography from the Internet is a relatively simple process. To illustrate the downloading process and the visualization techniques, this study provides a step-by-step analysis of the subduction zone along the western coast of Chile. Within the study area, t
James P. Reed
Step 1 – Creating a Borehole Manager Database
Create a RockWorks Borehole Manager Database containing Bore Location information and %Sand Assay data. This data can be entered into the Borehole Manager by hand, or can be imported via Excel or an ASCII file.
Data in the Locations table include Eastings, Northings, Elevations and Total Depths for your holes. Because all of these holes have been drilled in water, the elevation for the top of each hole is 0 (
Introduction
The Bellefontaine Outlier area is a highland region of flat lying Devonian age rocks capped by varying amounts of glacial till. The area is entirely surrounded by a topographically flat and heavily glaciated area of flat lying older Silurian age rocks. The Outlier highlands also contains the highest point in Ohio, Campbell Hill, (1,549ft) which has an elevation 40 feet above it the immediate surroundings and 500 feet above the flat glaciated till plains of t
Michael L. Fidler Jr.
Abstract
Law enforcement officials face the problem of locating suspected burial sites connected to criminal activity. Two case studies describe the collection of soil compaction data and subsequent analysis to locate a test burial at a research site. Forensic scientists use the RockWorks software from RockWare, Inc. to analyze the data and display three-dimensional views of the relative compaction logs at the sampling locations, interpolated compaction for the entire pr
Introduction
This Case Study documents the modeling and visualization of a Multi-Seam Coal Reserve.
The coal layers and surrounding sediments have been broken up into eleven different stratigraphic layers. The top OB unit is Overburden material above the first Coal layer, C1. Units C1 through C5 are coal layers. Units I1 through I5 are interbed units.
The RockWorks Borehole Manager is the best place to store and work with downhole information. Data
Summary
Areas with complex stratigraphy (i.e. pinch-outs, folding, faults, etc) are not easily modeled in the borehole manager. One will often have to take the grids originally created with the borehole manager and manipulate them in the Utilities or in other programs. There are several tools available is the Utilities for manipulating your grids. Once you have edited your grids, you can manually rebuild your model through the Utilities.
Introduction
Abstract
Base and precious metal deposits are typically characterized by a single parameter such as the total weight of mineable gold. Industrial mineral deposits, on the other hand, are characterized by their end-use. For example, the volumetric evaluation of a limestone deposit depends upon who’s buying the product. The concrete industry has a suite of evaluation parameters such as silica content and abrasion coefficients. Conversely, pharmaceutical-grade limesto
James P. Reed
Summary
Creating a geological model with RockWorks can be tricky with certain datasets. When a Stratigraphy Model is created in the Borehole Manager, the program creates a top and base grid for each unit listed in the Stratigraphy Table. After model generation, you can view these grids, stored in the Project Directory, in the RockWorks Project Manager. The following steps demonstrate how you can use Grid Math and the Polygon Filter to modify the grids for the uppermost u