WorldCat Identities

Long, Keith R.

Overview
Works: 31 works in 56 publications in 1 language and 2,613 library holdings
Genres: Bibliographies  Glossaries, vocabularies, etc  Terminology  Academic theses 
Roles: Author
Classifications: QE5, 553.28
Publication Timeline
.
Most widely held works by Keith R Long
U.S. industrial garnet by James George Evans( )

2 editions published in 2006 in English and held by 286 WorldCat member libraries worldwide

Preface, an overview of recent U.S. Geological Survey research in industrial minerals by James D Bliss( )

1 edition published in 2003 in English and held by 269 WorldCat member libraries worldwide

Hydrothermal enrichment of gallium in zones of advanced argillic alteration, examples from the Paradise Peak and McDermitt ore deposits, Nevada by James J Rytuba( )

2 editions published in 2003 in English and held by 268 WorldCat member libraries worldwide

The Principal rare earth elements deposits of the United States : a summary of domestic deposits and a global perspective by Keith R Long( )

2 editions published in 2010 in English and held by 159 WorldCat member libraries worldwide

A simplified economic filter for underground mining of massive sulfide deposits by D. A Singer( Book )

2 editions published in 2000 in English and held by 154 WorldCat member libraries worldwide

Production and disposal of mill tailings in the Coeur d'Alene mining region, Shoshone County, Idaho : preliminary estimates by Keith R Long( Book )

2 editions published in 1998 in English and held by 142 WorldCat member libraries worldwide

Grade and tonnage models for Coeur d'Alene-type polymetallic veins by Keith R Long( Book )

2 editions published in 1998 in English and held by 140 WorldCat member libraries worldwide

A simplified economic filter for open-pit gold-silver mining in the United States by D. A Singer( Book )

2 editions published in 1998 in English and held by 138 WorldCat member libraries worldwide

A partial glossary of Spanish geological terms exclusive of most cognates by Keith R Long( Book )

4 editions published in 1991 in English and held by 136 WorldCat member libraries worldwide

Economic fundamentals of mining law by Keith R Long( Book )

2 editions published in 1993 in English and held by 130 WorldCat member libraries worldwide

Reserves and production data for selected ore deposits in the United States found in the files of the Anaconda Copper Company by Keith R Long( Book )

3 editions published in 1992 in English and held by 124 WorldCat member libraries worldwide

Descriptive model of stratabound sulfur, and contained-sulfur model of stratabound sulfur by Keith R Long( Book )

2 editions published in 1992 in English and held by 123 WorldCat member libraries worldwide

Lacustrine manganese : a supplement to U.S. Geological Survey bulletin 1693( Book )

3 editions published in 1992 in English and held by 123 WorldCat member libraries worldwide

Grade-tonnage data for detachment-fault related polymetallic deposits by Keith R Long( Book )

3 editions published in 1993 in English and held by 121 WorldCat member libraries worldwide

Descriptive model of salt-dome sulfur and contained-sulfur model for salt-dome sulfur by Keith R Long( Book )

2 editions published in 1992 in English and held by 119 WorldCat member libraries worldwide

A bibliography on the economic theory of mineral resources by Keith R Long( Book )

1 edition published in 1989 in English and held by 109 WorldCat member libraries worldwide

Mineral resource bibliography for Bolivia( Book )

3 editions published in 1989 in English and held by 37 WorldCat member libraries worldwide

A bibliography on the economic theory of mineral resources by Keith R Long( Book )

1 edition published in 1989 in English and held by 7 WorldCat member libraries worldwide

Database of significant deposits of gold, silver, copper, lead, and zinc in the United States by Keith R Long( )

1 edition published in 1998 in English and held by 5 WorldCat member libraries worldwide

Estimating the number and sizes of undiscovered oil and gas pools by Keith R Long( )

2 editions published in 1988 in English and held by 5 WorldCat member libraries worldwide

This study introduces a new specification of oil and gas exploration as a sampling process, in order to estimate the number and sizes of undiscovered oil and gas pools by statistical inference from discovered pools as a sample. Oil and gas exploration is quite unlike drawing samples at random in that actual sampling is size-biased, subject to truncation of uneconomic pools, and to censorship of discovered pool sizes. The method of estimating the number and sizes of undiscovered pools proposed in this study specifically accounts for these non-random components of exploration as a sampling process, and can be easily implemented using the Expectation-Maximization algorithm. The method allows for choices between single and multiple point truncation of uneconomic pool sizes, and generalizes quite easily to the bivariate case necessary to analyze plays with pools that contain oil with associated gas. Its usefulness is enhanced by the introduction of powerful tests of fit of the lognormal distribution to the distribution of discovered pool sizes, and of meaningful measures of the uncertainty of estimates of the number and sizes of undiscovered pools. Application of the method to oil and gas plays in the San Juan basin of northwest New Mexico show that it yields quite reasonable and useful results. The method, when applied to data analyzed using other methods of estimating the number and sizes of undiscovered pools, confirms that failure to account for truncation of uneconomic pools will result in an overestimate of the average size of pools in a play. By avoiding this, and other, problems, the proposed estimation procedure should lead to better assessments of a play's potential for future discoveries of economically recoverable oil and gas
 
moreShow More Titles
fewerShow Fewer Titles
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.51 (from 0.44 for Preface, a ... to 0.79 for Database o ...)

Alternative Names
Keith R. Long wetenschapper

Languages
English (42)