Greta J Orris (Former Employee)
Science and Products
Filter Total Items: 31
Rare Earth Element Mines, Deposits, and Occurrences
Data on rare earth (including yttrium) mines, deposits, and occurrences were compiled as part of an effort by the USGS and the University of Arizona Center for Mineral Resources to summarize current knowledge on the supply and demand outlook and related topics for this group of elements. Economic competition and environmental concerns are increasingly constraining the mining and processing of rare
Authors
Greta J. Orris, Richard I. Grauch
Dataset of aggregate producers in New Mexico
This report presents data, including latitude and longitude, for aggregate sites in New Mexico that were believed to be active in the period 1997-1999. The data are presented in paper form in Part A of this report and as Microsoft Excel 97 and Data Interchange Format (DIF) files in Part B. The work was undertaken as part of the effort to update information for the National Atlas. This compilation
Authors
Greta J. Orris
New Mexico aggregate production sites, 1997-1999
This report presents data, including latitude and longitude, for aggregate sites in New Mexico that were believed to be active in the period 1997-1999. The data are presented in paper form in Part A of this report and as Microsoft Excel 97 and Data Interchange Format (DIF) files in Part B. The work was undertaken as part of the effort to update information for the National Atlas. This compilation
Authors
Greta J. Orris
Geochemical data from Colombia; Part A, General discussion
No abstract available.
Authors
Greta J. Orris
Geochemical data from Colombia; Part B, Data printout of analytical data
No abstract available.
Authors
Greta J. Orris
Gold-bearing skarns
In recent years, a significant proportion of the mining industry's interest has been centered on discovery of gold deposits; this includes discovery of additional deposits where gold occurs in skarn, such as at Fortitude, Nevada, and at Red Dome, Australia. Under the classification of Au-bearing skarns, we have modeled these and similar gold-rich deposits that have a gold grade of at least 1 g/t
Authors
Ted G. Theodore, Greta J. Orris, Jane M. Hammerstrom, James D. Bliss
Science and Products
Filter Total Items: 31
Rare Earth Element Mines, Deposits, and Occurrences
Data on rare earth (including yttrium) mines, deposits, and occurrences were compiled as part of an effort by the USGS and the University of Arizona Center for Mineral Resources to summarize current knowledge on the supply and demand outlook and related topics for this group of elements. Economic competition and environmental concerns are increasingly constraining the mining and processing of rare
Authors
Greta J. Orris, Richard I. Grauch
Dataset of aggregate producers in New Mexico
This report presents data, including latitude and longitude, for aggregate sites in New Mexico that were believed to be active in the period 1997-1999. The data are presented in paper form in Part A of this report and as Microsoft Excel 97 and Data Interchange Format (DIF) files in Part B. The work was undertaken as part of the effort to update information for the National Atlas. This compilation
Authors
Greta J. Orris
New Mexico aggregate production sites, 1997-1999
This report presents data, including latitude and longitude, for aggregate sites in New Mexico that were believed to be active in the period 1997-1999. The data are presented in paper form in Part A of this report and as Microsoft Excel 97 and Data Interchange Format (DIF) files in Part B. The work was undertaken as part of the effort to update information for the National Atlas. This compilation
Authors
Greta J. Orris
Geochemical data from Colombia; Part A, General discussion
No abstract available.
Authors
Greta J. Orris
Geochemical data from Colombia; Part B, Data printout of analytical data
No abstract available.
Authors
Greta J. Orris
Gold-bearing skarns
In recent years, a significant proportion of the mining industry's interest has been centered on discovery of gold deposits; this includes discovery of additional deposits where gold occurs in skarn, such as at Fortitude, Nevada, and at Red Dome, Australia. Under the classification of Au-bearing skarns, we have modeled these and similar gold-rich deposits that have a gold grade of at least 1 g/t
Authors
Ted G. Theodore, Greta J. Orris, Jane M. Hammerstrom, James D. Bliss