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Page 6523, results 163051 - 163075

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Tertiary gold-bearing channel gravel in northern Nevada County, California
D. W. Peterson, W. E. Yeend, H. W. Oliver, R.E. Mattick
1968, Circular 566
The remains of a huge Tertiary gravel-filled channel lie in the area between the South and Middle Yuba Rivers in northern Nevada County, Calif. The deposits in this channel were the site of some of the most productive hydraulic gold mines in California between the 1850's and 1884. The gravel...
A study of suitability of Dacca clays for light-weight aggregate production in East Pakistan
M. A. Maroof Khan, Norbert A. Parker
1968, Open-File Report 68-176
The following report covers field work and muffle furnace tests on clays in the immediate vicinity of Dacca, East Pakistan, to determine clay amenability to bloating for the commercial production of light-weight aggregates. It has been established that such clays exist in at least three areas; reserves are sufficient in...