Methods of measuring water levels in deep wells
M. S. Garber, F. C. Koopman
1968, Techniques of Water-Resources Investigations 08-A1
Accurate measurement of water levels deeper than 1,000 feet in wells requires specialized equipment. Corrections for stretch and thermal expansion of measuring tapes must be considered, and other measuring devices must be calibrated periodically. Bore-hole deviation corrections also must be made. Devices for recording fluctuation of fluid level usually require...
Gold distribution in surface sediments on the continental shelf off southern Oregon: A preliminary report
H. Edward Clifton
1968, Circular 587
Local concentrations of gold have been identified in surface sediments on the continental shelf off southern Oregon between Cape Arago and Cape Sebastian, a distance of about 40 miles. Concentrations of gold range from the lower limit of detection, 5 parts per billion, to almost 150 parts per billion. The largest...
Geology of the Hot Sulphur Springs quadrangle, Grand County, Colorado
Glen Arthur Izett
1968, Professional Paper 586
The catastrophic late Pleistocene Bonneville flood in the Snake River Plain, Idaho
Harold E. Malde
1968, Professional Paper 596
Geology and coal resources of the Elk Valley area, Tennessee and Kentucky
Kenneth John Englund
1968, Professional Paper 572
Calcium carbonate, organic carbon, and nitrogen in sediments from drill holes on the continental margin off Florida
Jobst Hulsemann
1968, Professional Paper 581-B
Flood surge on the Rubicon River, California -- Hydrology, hydraulics, and boulder transport
Kevin M. Scott, George C. Gravlee Jr.
1968, Professional Paper 422-M
Fluvial monazite deposits in the southeastern United States, with a section on mineral analyses
William C. Overstreet, A. M. White, J. W. Whitlow, P. K. Theobald Jr., D. W. Caldwell, N. P. Cuppels, Jerome Stone
1968, Professional Paper 568
No abstract available....
Mica deposits of the Blue Ridge in North Carolina
Frank Gardner Lesure
1968, Professional Paper 577
Pegmatites in the Blue Ridge of North Carolina are important sources of sheet and scrap mica, feldspar, kaolin, and quartz. Small amounts of beryl, columbite-tantalite, monazite, samarskite, and uranium minerals also have been produced. The mica-bearing pegmatites occur in mica and hornblende gneiss and schist throughout the Blue Ridge province...
Geology of the Great Smoky Mountains National Park, Tennessee and North Carolina
Philip Burke King, Robert B. Neuman, Jarvis B. Hadley
1968, Professional Paper 587
The boundary between Tennessee and North Carolina is delimited for about 50 miles in midlength by the crests of the Great Smoky Mountains, which include some of the highest summits in the southeastern United States, and which culminate in Clingmans Dome (alt 6,642 ft). Ramifying spurs and foothills descend northwestward...
Principal gold-producing districts of the United States
Albert Herbert Koschmann, M.H. Bergendahl
1968, Professional Paper 610
Distribution and genesis of authigenic silicate minerals in tuffs of Pleistocene Lake Tecopa, Inyo County, California
Richard A. Sheppard, Arthur J. Gude
1968, Professional Paper 597
Teiichispira, a new Early Ordovician gastropod genus
Ellis Leon Yochelson, Clive R. Jones
1968, Professional Paper 613-B
The December 1965 eruption of Kilauea Volcano, Hawaii
Richard S. Fiske, Robert Y. Koyanagi
1968, Professional Paper 607
Cambrian trilobites of east-central Alaska
Allison R. Palmer
1968, Professional Paper 559-B
Mineral resources of the Appalachian region
Water Resources Division, U.S. Geological Survey, U.S. Bureau of Mines
1968, Professional Paper 580
No abstract available....
Paleogene biostratigraphy of nonmarine rocks in King County, Washington
Jack A. Wolfe
1968, Professional Paper 571
A descriptive catalog of selected aerial photographs of geologic features in the United States
Charles Storrow Denny, C.R. Warren, D.H. Dow, W.J. Dale
1968, Professional Paper 590
River channel bars and dunes - Theory of kinematic waves
Walter Basil Langbein, Luna Bergere Leopold
1968, Professional Paper 422-L
A kinematic wave is a grouping cf moving objects in zones along a flow path and through which the objects pass. These concentrations may be characterized by a simple relation between the speed of the moving objects and their spacing as a result of interaction between them.Vehicular traffic has long...
Brachiopods of the Bois Blanc Formation in New York
A. J. Boucot, J.G. Johnson
1968, Professional Paper 584-B
River adjustment to altered hydrologic regimen - Murrumbidgee River and paleochannels, Australia
Stanley Alfred Schumm
1968, Professional Paper 598
Geochemistry of niobium and tantalum
Raymond Laurence Parker, Michael Fleischer
1968, Professional Paper 612
Methods for predicting dispersion coefficients in natural streams, with applications to lower reaches of the Green and Duwamish Rivers, Washington
Hugo B. Fischer
1968, Professional Paper 582-A
Airborne measurements of terrestrial radioactivity as an aid to geologic mapping
James A. Pitkin
1968, Professional Paper 516-F
Geology and ore deposits of the Iron River-Crystal Falls district, Iron County, Michigan
Harold Lloyd James, C. E. Dutton, F.J. Pettijohn, K. L. Wier
1968, Professional Paper 570
