Morphology, sedimentation, and seismic characteristics of an arctic beach, Nome, Alaska - with economic significances
H. Gary Greene
1970, Open-File Report 70-142
Arctic beaches exhibit characteristics that do not occur on beaches in more temperate zones. In the summer of 1967 morphological, sedimentological, and seismic refraction studies were made on an arctic beach near Nome, Alaska, in order to better define these distinguishing characteristics.Several distinct microrelief structures are developed during ice break-up...
Hydraulic tests in hole UA-1 and water inflow into an underground chamber, Amchitka Island, Alaska
Wilbur C. Ballance
1970, Open-File Report 70-16
Hole UA-1 was center punched (a small-diameter exploratory hole drilled ahead of the large-diameter emplacement hole) from 1,524.0 to 1,981.2 meters (5,000 to 6,500 feet) and hydraulically tested to determine an ideal location for mining a chamber. Fifteen zones were tested; minor amounts of water bypassed the packers during five...
Geology, mineral deposits, and geochemical and radiometric anomalies, Serpentine Hot Springs area, Seward Peninsula, Alaska
C.L. Sainsbury, Travis Hudson, Reuben Kachadoorian, Thomas Richards
1970, Bulletin 1312-H
Geology of the McCarthy B-4 quadrangle, Alaska
E.M. MacKevett Jr.
1970, Bulletin 1333
Preliminary geologic investigations in the Kanuti River region, Alaska
William Wallace Patton Jr., Thomas P. Miller
1970, Bulletin 1312-J
The Skolai Group in the McCarthy B-4, C-4, and C-5 quadrangles, Wrangell Mountains, Alaska
James G. Smith, E.M. MacKevett Jr.
1970, Bulletin 1274-Q
Geology and lode-gold deposits of the Nuka Bay area, Kenai Peninsula, Alaska
D.H. Richter
1970, Professional Paper 625-B
Paleozoic stratigraphy in the northwest coastal area of Prince of Wales Island, southeastern Alaska
G. Donald Eberlein, Michael Churkin Jr.
1970, Bulletin 1284
Geologic reconnaissance of a possible powersite at Takatz Creek, southeastern Alaska
James E. Callahan
1970, Bulletin 1211-D
Geochemical and geologic reconnaissance of a part of the Fortymile area, Alaska
Helen Laura Foster, Sandra H. B. Clark
1970, Bulletin 1312-M
Water-resources reconnaissance of the Golovin area, Alaska
J.B. Weeks
1970, Open-File Report 70-363
A portable refraction seismograph survey of gold placer areas near Nome, Alaska
H. Gary Greene
1970, Bulletin 1312-B
Progress map, geology of the Sadlerochit and Shublik Mountains, Mt. Michelson C-1, C-2, C-3, and C-4 quadrangles, Alaska
H. N. Reiser, J.T. Dutro Jr., W. P. Brosge, A. K. Armstrong, R. L. Detterman
1970, Open-File Report 70-273
Geochemical and geophysical reconnaissance of parts of the Yakutat and Mount Saint Elias quadrangles, Alaska
E.M. MacKevett Jr., George Plafker
1970, Bulletin 1312-L
No abstract available....
Physiographic diagrams of parts of the continental borderlands of California and Alaska: 12 physiographic diagrams: Southern California Borderland; Eastern Murray Fracture Zone and Transverse Ranges; Southern Monterey Bay; Monterey Canyon; Central San
Tau Rho Alpha
1970, Open-File Report 70-5
Water-resources reconnaissance of the Old Harbor area, Kodiak Island, Alaska
J.B. Weeks
1970, Open-File Report 70-364
Water-resources reconnaissance of the Kwiguk (Emmonak) area, Alaska
Alvin J. Feulner
1970, Open-File Report 70-122
As part of an agreement between the Alaska Department of Natural Resources and the United States Geological Survey, Water Resources Division, a reconnaissance visit was made of the area in the vicinity of the village of Kwiguk (Emmonak), Alaska, during the period June 17-19, 1970, to evaluate the water resources...
Cassiterite as an exsolution product in magnetite, Lost River tin mine, Alaska
George A. Desborough, C.L. Sainsbury
1970, Economic Geology (65) 1004-1006
No abstract available....
Eocene age of the Adak ‘Paleozoic (?)’ rocks, Aleutian Islands, Alaska
David W. Scholl, H. Gary Greene, Michael S. Marlow
1970, Bulletin of the Geological Society of America (81) 3583-3591
In 1948, several specimens identified as the plant genus Annularia, a primitive horsetail of Pennsylvanian or Permian age, were found in tuffaceous sandstone exposed near the northern end of Adak Island, Alaska. These beds form the basal part of the Andrew Lake Formation, a newly named sequence of marine sedimentary...
Graptolite succession across the Ordovician–Silurian boundary in south-eastern Alaska
Michael Churkin Jr., Claire Carter, George Donald Eberlein
1970, Journal of the Geological Society (126) 319-330
The first discovery in North America of a succession of graptolite faunas across the Ordovician–Silurian boundary has been made on Esquibel Island, in south-eastern Alaska, where five graptolite zones are represented in an 18 m interval of shale in the Descon Formation. Despite the thinness of...
The Uralides and the motion of the Russian and Siberian Platforms
Warren B. Hamilton
1970, Bulletin of the Geological Society of America (81) 2553-2576
The Uralides—the late Precambrian and Paleozoic orogenic terrane between the Russian and Siberian Platforms—in part are exposed in the Ural Mountains, in the central Soviet Arctic, along the west edge of the Siberian Platform, and in southern Siberia and Kazakhstan, and in part are buried beneath the fill of the...
A possible bedrock source for obsidian found in archeological sites in northwestern Alaska
W. W. Patton Jr., T. P. Miller
1970, Science (169) 760-761
Recently discovered deposits of obsidian in the Koyukuk valley may be the long-sought-for source of obsidian found in archeological sites in northwestern Alaska. Obsidian from these deposits compares favorably in physical characteristics and sodium-manganese ratio with the archeological obsidian, and there is evidence that the deposits have been "mined" in...
Aspects of oil and gas operations on federal and Indian lands of interest to engineers
Charles J. Curtis
1970, Conference Paper, SPE Rocky Mountain regional meeting
It is always enjoyable to attend any meeting of the Society of Petroleum Engineers. I am happy to have this opportunity to speak to you because I believe that petroleum engineers can benefit from a better understanding of the Mineral Leasing Act and the regulations that implement the act insofar...
Silver depletion indicated by microanalysis of gold from placer occurrences, western United States
George A. Desborough
1970, Economic Geology (65) 304-311
No abstract available....
Observations of iceberg rafting in Glacier Bay, Alaska, and the identification of ancient ice-rafted deposits
A. Thomas Ovenshine
1970, Bulletin of the Geological Society of America (81) 891-894
Observations of icebergs in a modern glacial marine environment indicate that ancient rocks that received iceberg-rafted material should contain: (1) local concentrations of stones that originated when icebergs overturned, and (2) small pellets of till that were originally sediment filling the spaces between clear ice crystals.The till pellets are especially...
