Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
Industrial Minerals 1987By L Baumgardner, A. V. Castelli
Barite In 1987, United States mine production of barite increased 15.870, consumption (sold or used by grinding plants) increased by 6.97, and imports are estimated to have fallen by 19.57. World
Jan 6, 1988
-
A Mineralogical Examination of the McArthur Lead-Zinc-Silver DepositThe mineralisation consists principally of layered pyrite, phalerite and galena, situated conformably within a sequence of tuffaceous, bituminous shales and dolomitic sediments that include slump brec
Jan 1, 1968
-
Landslides, Drought, And Brown Trout In The Red River, NMBy D. Conklin
Annual fish monitoring of the Red River, NM from the town of Red River to downstream of Questa, NM has been conducted since 1997. This long-term dataset, sponsored by the Chevron Mining Inc. Questa M
Jan 1, 2011
-
RI 3114 Some Experimental Data on the Influence of Dry and Wet Cleaning on Coke Properties and on Gas and By-Product Yields of Pittsburgh and Mary Lee CoalsBy A. C. Fieldner
"INTRODUCTION In a previous report3 prepared for the American Gas Association, the influence of washing coal on coke properties and on gas and by-product yields was discussed on the basis of answers t
May 1, 1931
-
Pump And Cyclone Design/Optimization To Maximize Grinding Circuit EfficiencyThe design/optimization of the pump and cyclones to maximize grinding circuit efficiency first requires a concise understanding of, and clearly defined specifications for, desired grinding circuit per
Jan 1, 2011
-
Investigations of Shock Tunnel Dynamics and Energy Realization (a197a97d-a574-4dd6-b892-bc2dba4e791b)By Joshua Hoffman, Braden Lusk, Kyle Perry
This study explores how different geometries affect the shock tunnel’s performance and is broken down into three phases. Phase 1: Open arena testing in which theoretical energies produced by the deton
Jan 1, 2009
-
An Overview Of Soil Mixing In The United States ? IntroductionBy Peter J. Nicholson
Since the reintroduction of soil mixing to the United States over 10 years ago, the work installed by soil mixing technology has grown dramatically. From an annual turnover of less than ten million do
Jan 1, 2001
-
OFR-77-82 Fiber Optics Technology For Underground Mine Communication SystemsBy David Bendersky
This report covers the activities of a feasibility study of fiber optics technology fur use in mines. The objective of the study was to evaluate, both technically and cost-wise, the possible use of fi
Jan 1, 1982
-
Application of Gold Fineness to the Search for OreIt has been fairly firmly established (Fisher, N. H., 1945) that the fineness of the gold in any ore deposit varies with the depth from the surface at which the deposit was formed, and, as a corollary
Jan 1, 1950
-
Present Value in Its Relation to Ore Reserves, Plant Capacity, and Grade of OreBy Edwin Berry
THE consideration of the present value of a mine is of great importance when planning for the operation of a property,, and it is particularly so in the case of mines that have large ore reserves. At
Jan 7, 1922
-
Offshore Wind Turbine Foundations - In Denmark And Belgium - IntroductionBy Jørn H. Thomsen
This paper presents the experience gained and the lessons learned over the last decade within the numerous offshore foundation projects undertaken in the offshore waters of Denmark and Belgium by COWI
Jan 1, 2013
-
Auriferous Veins at Charters TowersProbably no other country or coutinent has so many rich deposits of various different minerals as Australia. Long ago in the days of my boyhood in the old land the marvellous discoveries of high perce
-
Core Recovery and Presentation in Coalfield Diamond Drilling û A New Split Inner Tube Core BarrelBy Lees M. G, Vitnell B. W
The post-war need to increase coal production promoted an intensive drilling campaign. Ineffectiveness in core recovery inclined the coal industry towards percussion drilling rather than diamond drill
Jan 1, 1957
-
RI 8712 Alumina Miniplant Operations - Production of Misted Raw Kaolin FeedBy John L. Schaller
The Bureau of Mines, U.S. Department of the Interior, has investigated the extraction of alumina from domestic kaolin clay by leaching with boiling 26 wt-pct hydrochloric acid. Acid leaching of crushe
Jan 1, 1982
-
Regional Two-Seam Stress Analyses At The Deer Creek Mine (58f624e3-fdec-4f72-b0ef-8ec1e65d9bd2)By Hamid Maleki
A geotechnical monitoring program has been implemented at Energy West Mining Company for enhancing site-specific evaluation of longwall stress conditions. This program consists of underground measure
Jan 1, 2009
-
IC 8798 Mine Health And Safety In-House Research, Development, And Demonstration In Fiscal Year 1979This publication summarizes, for all interested parties, the research, development, and demonstration in-house projects programed by the Bureau of Mines for fiscal year 1979 (October 1, 1978--Septembe
Jan 1, 1979
-
Improvement of Valuable Mineral Transport and Gangue Drainage in Froth FlotationBy G. Bartolacci, G. Couture, Levasseur. B., A. Lockhart, D. Nathan
"Pulp and froth zone characterization in a flotation circuit to improve transport of valuable minerals remains a challenge. Even though some significant breakthroughs have been made in the development
Jan 1, 2017
-
Logging and Log Interpretation - The Borehole Televiewer – A New Logging Concept for Fracture Location and Other Types of Borehole InspectionBy R. L. Caldwell, E. E. Glenn, L. J. Norton, A. J. D. Straus, S. V. Holcomb, J. Zemanek
A new and unique logging tool, called the Borehole Televiewer (BHTV), has been developed to inspect boreholes and to evaluate formations. Even though geologists and engineers have had only about 3 yea
Jan 1, 1970
-
Subaqueous Deposition of Acid Generating Tailings into an Acidic Lake Environment: Pilot Column Test ResultsBy Linda C. M. Elliot, Liangxue Liu
"The deposition of tailings under water is considered to be one of the most environmentally promising and potentially cost effective methods to reduce or eliminate acid mine drainage from tailings. On
Jan 1, 1997
-
Carbon ManagementBy Michael L. Jones
Outline ?Background ?Identify and quantify CO2 sources ?Consider options for CO2 separation and capture ?Review options for sequestration/reuse ?Determine best option for managing CO2
Jan 1, 2008