Iron ore resources of South America and their utilization
Harry Klemic, Margaret Cooper
1977, Open-File Report 77-745
Summary proposals for investigations of techniques in mineral exploration suited to the special needs of tropical regions
Ralph Leroy Erickson
1977, Open-File Report 77-526
Ground-water levels in the United States, 1972-74, north-central states
Water Resources Division, U.S. Geological Survey
1977, Water Supply Paper 2163
Publication of ground-water level data for the United States in water-supply papers was begun by the Geological Survey in 1935. From 1935 through 1939, a single water-supply paper for each year covering the entire nation was issued (Water-Supply Papers 777, 817, 840, 845, and 886). Since then water-supply papers have...
Land use and land cover and associated maps for Greensboro, North Carolina; Virginia (North Carolina portion only)
Water Resources Division, U.S. Geological Survey
1977, Open-File Report 77-785
United States Geological Survey uranium and thorium resource assessment and exploration research program, fiscal year 1977
Warren Irvin Finch
1977, Open-File Report 77-218
Land use and land cover and associated maps for Canyonville, Oregon
Water Resources Division, U.S. Geological Survey
1977, Open-File Report 77-443
Quantity and quality of drainage from the Argo Tunnel and other sources related to metal mining in Gilpin, Clear Creek and Park Counties, Colorado
Dennis A. Wentz
1977, Open-File Report 77-734
Eighteen metal-mine drainage sources have been located in that part of Gilpin, Clear Creek, and Park Counties, Colo., lying within the Missouri River basin. At least 13 of these sources are known to contain high acidity and (or) trace-element concentrations or to contribute water to adversely affected streams. From January...
Preliminary report on the geology of the Harmon and Hansen lignite beds in the southern half of the Bowman-Gascoyne area, Slope, Bowman, and Adams counties, North Dakota
Robert C. Lewis
1977, Open-File Report 77-377
Simulation studies of flow and sediment transport using a mathematical model, Atchafalaya River Basin, Louisiana
Marshall E. Jennings, Larry F. Land
1977, Water-Resources Investigations Report 77-14
Simulation studies were made of flow and sediment transport for the Atchafalaya River basin, Louisiana using a mathematical model calibrated and supplied by the Hydrologic Engineering Center and the New Orleans District, U.S. Army Corps of Engineers. The study results are based on three, 50-year computer simulations for the following...
Effectiveness of sediment-control techniques used during highway construction in central Pennsylvania
Lloyd A. Reed
1977, Open-File Report 77-498
Geologic map and cross section of the Wallrock quadrangle, Gallatin and Park Counties, Montana
Betty Skipp
1977, Geologic Quadrangle 1402
Geologic map of the Lee 15-minute quadrangle, Elko County, Nevada
J. Fred Smith, Keith A. Howard
1977, Geologic Quadrangle 1393
Relative slope stability of the southern Hood Canal area, Washington
Mackey Smith, R. J. Carson
1977, IMAP 853-F
No abstract available....
Earthquakes in the United States, October-December 1975
J. H. Minsch, C. W. Stover, W. J. Person, R. B. Simon
1977, Circular 749-D
No abstract available....
Floods in the Big Creek basin, Linn County, Iowa
Albert J. Heinitz
1977, Open-File Report 77-209
Flood information for the Big Creek basin in Linn County, Iowa, should be of use to those concerned with the design of bridges and other structures on the flood plains of the streams. Water-surface profiles for the flood of May 1974 are given for Big Creek and its major tributaries,...
The United States Geological Survey in Alaska: Organization and status of programs in 1977
Kathleen M. Blean, editor(s)
1977, Circular 751-A
United States Geological Survey projects in Alaska include a wide range of topics of economic and scientific interest. Studies in 1976 include economic geology, regional geology, stratigraphy, environmental geology, engineering geology, hydrology, and marine geology. Discussions of the findings or, in some instances, narratives of the course of the investigations...
The United States Geological Survey in Alaska: Accomplishments during 1976
Kathleen M. Blean, editor(s)
1977, Circular 751-B
United States Geological Survey projects in Alaska include a wide range of topics of economic and scientific interest. Studies in 1976 include economic geology, regional geology, stratigraphy, environmental geology, engineering geology, hydrology, and marine geology. Discussions of the findings or, in some instances, narratives of the course of the investigations...
Geologic map of the Craig quadrangle, Lewis and Clark and Cascade Counties, Montana
Robert George Schmidt
1977, Geologic Quadrangle 1411
Ground-water resources of Cambodia
William Charles Rasmussen, Gary M. Bradford
1977, Water Supply Paper 1608-P
Cambodia (now the Khmer Republic), in tropical, humid southeast Asia, has an area of 175,630 km and a population of about 5 million. The Mekong River, one of the world's largest rivers, flows through Cambodia. Also, the Tonle Sap (Grand Lac), a highly productive fresh-water lake, functions as a huge...
Principal facts for a gravity survey of Breitenbush Known Geothermal Resource area, Oregon
Jerry H. Hassemer, Donald L. Peterson
1977, Open-File Report 77-67-A
Distribution and character of naleds in northeastern Alaska
Deborah Harden, Peter W. Barnes, Erk Reimnitz
1977, Open-File Report 77-91
An examination of the distribution of river naleds seen in Landsat satellite imagery and high- and low-altitude aerial photography of Alaska's North Slope indicates that these features are widespread east of the Colville River and less abundant to the west. Where naleds occur, stream channels are wide and often form...
Maps showing sample localities and ternary plots and graphs showing modal and chemical data for granitic rocks of the Santa Lucia Range, Salinian block, California Coast Ranges
D. C. Ross
1977, Miscellaneous Field Studies Map 799
Controlled mosaic of the eastern part of the Chryse Planitia region of Mars
Water Resources Division, U.S. Geological Survey
1977, IMAP 1069
An evaluation of the hydrocarbon potential of the proposed Great Bear Wilderness Area, Flathead, Teton, and Pondera counties, Montana
Melville Rhodes Mudge, Robert L. Earhart, George E. Claypool
1977, Open-File Report 77-773
Water resources of the Maunabo Valley, Puerto Rico
D. G. Adolphson, M.A. Seijo, Tully M. Robison
1977, Water-Resources Investigations Report 76-115
The Maunabo Valley, in southestern Puerto Rico, consists of a 3.5-square-mile alluvial plain surrounded by hills of metavolcanic and igneous intrusive rocks. The principal source of ground water in the basin is a shallow unconfined aquifer in the valley alluvium. Continuous pumping of the shallow aquifer has induced the flow...