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Page 1339, results 33451 - 33475

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Veins in the northern part of the Boulder batholith, Montana
D. M. Pinckney
1965, Open-File Report 65-123
About 20 miles north of Butte and extending nearly to Helena, is an area of 350 square miles containing hundreds of veins and altered zones. The bedrock of the area is 1) late Cretaceous volcanic rocks, forerunners of the Boulder batholith, 2) the Boulder batholith of late Cretaceous to early...
Ground-water data of selected test holes and wells along the Verdigris River in Wagoner and Rogers Counties, Oklahoma
H.H. Tanaka, D.L. Hart Jr., R.K. Knott
1965, Open-File Report 65-156
The data in this report were collected during the period 1958-64 by the U.S. Geological Survey in cooperation with the U.S. Army, Corps of Engineers, as part of a comprehensive study of the ground-water resources of the alluvium along the Arkansas and Verdigris Rivers between Moffett and Catoosa, Oklahoma (fig....
Study of intake lag in conventional stream gaging stilling wells
Winchell Smith, R.L. Hanson, R.W. Cruff
1965, Open-File Report 65-150
This study investigated the relation between lag, or head loss (hL), in a typical stilling-well intake system of a stream-gaging station and rate of change of stage (ΔH/Δt) of the stream. The purpose of the study was to define such a relation in general terms and thus provide a rational...
Geology and ground-water resources of the Two Medicine unit and adjacent areas, Blackfeet Indian Reservation, Montana, with a section on chemical quality of water
Q.F. Paulson, Tom V. Zimmerman, Russell H. Langford
1965, Open-File Report 65-117
The Two Medicine Irrigation Unit, on the Blackfeet Indian Reservation of northern Montana, is irrigated by water diverted from Two Medicine Creek. Waterlogging because of overapplication of water and locally inadequate subsurface drainage is a serious problem. This study was undertaken by the U.S. Geological Survey in cooperation with the...