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- <p>Fluorspar -- Kentucky<br />Fluorspar -- Kentucky -- Maps<br />Fluorspar industry -- Kentucky</p> (1)
- Churn drills<br />Drilling and boring machinery<br />Copper mines and mining -- New Mexico -- Grant County<br />Copper mines and mining -- New Mexico -- Burro Mountain Mining District<br />Records -- Management (1)
- Mineral industries -- Accounting<br />Mineral industries -- Management -- Evaluation (1)
Articles 1 - 3 of 3
Full-Text Articles in Mining Engineering
Fluorspar Mining In Kentucky, Walter Coffran Richards
Fluorspar Mining In Kentucky, Walter Coffran Richards
Professional Degree Theses
"The mining of fluorite, or fluorspar in Western Kentucky is one of the chief mineral industries of that State. As the number of mines and prospects is very great, a thorough treatise on the geology, mines, and methods of this district would make a large volume. This thesis will deal, however, with only a small part of the district, in which the mine operated by the author is located. Before going into detail, it might be well to mention a few points relative to the fluorspar industry in general. To the average person, fluorspar seems to be unknown. In fact, …
Underground Records, Robert Hardy Bedford
Underground Records, Robert Hardy Bedford
Professional Degree Theses
"It may save confusion to now state that "Underground Records" is used in sense of information regarding labor, supplies, and output of the underground proper, in distinction from "Costs" - a term here used for results of the sum total of all records after they have passed through the hands of the book keeping-accounting staff. The essentials of underground records are more or less carefully collected by all mining companies of any importance, but are too often, before they have come under the eyes of the mine management in intelligible or suggestive form, obscured by the addition of a "witches …
Method Of Obtaining And Preserving Data On Churn Drill Holes, Ira Lee Wright
Method Of Obtaining And Preserving Data On Churn Drill Holes, Ira Lee Wright
Professional Degree Theses
"In prospecting for copper by means of churn drills it is absolutely essential that accurate methods of sampling be employed if any dependence is to be put upon the results. Of equal importance is the recording and preservation of data regarding each hole after results are obtained. This applies to such information as location and elevation of holes, depth, water level, geology etc as well as to the assays of the samples. Future underground development will be guided by information obtained from the drill holes and any incompleteness in the records will cause uncertainty in the development of the mine. …