Silver in veins of hypogene manganese oxides
D. F. Hewett
1968, Circular 553
Geologic map of the Riverside quadrangle, Butler and Warren Counties, Kentucky
Fred R. Shawe
1968, Geologic Quadrangle 736
Geologic map of the Monongahela quadrangle, southwestern Pennsylvania
John B. Roen, Bion H. Kent, Stanley P. Schweinfurth
1968, Geologic Quadrangle 743
Subsurface data on thicknesses and distribution of some Upper Jurassic formations in adjacent parts of Texas, Louisiana, and Arkansas
Kendell A. Dickinson
1968, Open-File Report 68-74
Mineral investigations in the Al Aqiq area, Saudi Arabia
Virgil A. Trent
1968, Open-File Report 68-273
No abstract available. ...
Reconnaissance geologic map of the Preston quadrangle, southeastern Idaho
Steven S. Oriel, Lucian B. Platt
1968, Open-File Report 68-205
Aeromagnetic map of the Mount Tom quadrangle and part of the Woronoco quadrangle, Hampden and Hampshire Counties, Massachusetts
Water Resources Division, U.S. Geological Survey
1968, Geophysical Investigations Map 622
No abstract available....
Aeromagnetic map of the Chester quadrangle and parts of the Beckett and Blandford quadrangles, Berkshire, Hampden, and Hampshire Counties, Massachusetts
Water Resources Division, U.S. Geological Survey
1968, Geophysical Investigations Map 625
No abstract available....
Geographic map of the Asir quadrangle, Kingdom of Saudi Arabia
Glen F. Brown, Roy O. Jackson
1968, IMAP 217-B
Prepared by the U.S. Geological Survey and the Arabian American Oil Company under the joint sponsorship of the Kingdom of Saudi Arabia and the U.S. Department of State. Principally revisions to roads and addition of new place names as of May 1968....
Aeromagnetic map of the Kabetogama Lake-Grassy Lake area, St. Louis County, Minnesota
Water Resources Division, U.S. Geological Survey
1968, Geophysical Investigations Map 616
No abstract available....
Metallic mineral resources map of the Bradfield Canal Quadrangle, Alaska
1968, Open-File Report 68-41
No abstract available. ...
Preliminary structure map of the northern part of the Piceance Creek basin, Colorado, and preliminary isopach map of the interval between the B-groove and orange marker of the Green River Formation, northern part of the Piceance Creek basin, Colorado
John R. Dyni
1968, Open-File Report 68-92
No abstract available....
Preliminary surficial geologic map and materials test data of the Golden quadrangle, Jefferson County, Colorado
Richard Van Horn
1968, Open-File Report 68-308
No abstract available....
Metallic mineral resources map of the Sumdum Quadrangle, Alaska
1968, Open-File Report 68-59
No abstract available. ...
Aeromagnetic map of the Hot Creek Range region, south-central Nevada
Water Resources Division, U.S. Geological Survey
1968, Geophysical Investigations Map 637
No abstract available....
Geologic map of the Ptolemaeus Quadrangle of the moon
K. A. Howard, Harold Masursky
1968, IMAP 566
The Ptolemaeus quadrangle is near the center of the lunar disk, in the northern part of the southern highlands. Smooth...
Geologic map of the Salvisa quadrangle, central Kentucky
Earle Rupert Cressman
1968, Geologic Quadrangle 760
Geologic map of the Bradley Peak quadrangle, Carbon County, Wyoming
Richard W. Bayley
1968, Geologic Quadrangle 773
Geologic map of the Mount Tyndall quadrangle, Custer County, Colorado
M. R. Brock, Q. D. Singewald
1968, Geologic Quadrangle 596
Geologic map of the Lovelaceville quadrangle, western Kentucky
Warren Irvin Finch
1968, Geologic Quadrangle 763
Evaluation of radar and infrared imagery of sedimentary rock terrane, south-central Yellowstone National Park, Wyoming
William Richard Keefer
1968, Open-File Report 68-156
Geologic map of the Aguas Buenas quadrangle, Puerto Rico
M. H. Pease Jr.
1968, IMAP 479
Geology and geochemistry of the Wanamu-Blue Mountains area, Waini SW, Guyana
Bruce E. Kilpatrick
1968, Open-File Report 68-157
The Wanamu-Blue Mountains area is situated in the Northwest District of Guyana, about 110 miles northwest of Georgetown. The Blue Mountains are low, but rugged, hills that have developed on mafic metamorphic rocks that occur in an arcuate "mantle" around a granite batholith, the Aranka-Wanamu Granite. The area lies within...
Geologic map of the Bayaney quadrangle, Puerto Rico
A. E. Nelson, O. T. Tobisch
1968, IMAP 525
Bedrock topography of eastern Morris and western Essex Counties, New Jersey
W. D. Nichols
1968, IMAP 549
No abstract available....