Offset plutons and history of movement along the McKinley segment of the Denali Fault system, Alaska
Bruce L. Reed, Marvin A. Lanphere
1974, GSA Bulletin (85) 1883-1892
The Foraker and McGonagall plutons, bodies of granodiorite with nearly identical mineralogy and chemistry, are considered to be parts of a single igneous mass that has undergone right-lateral displacement of about 38 km along the McKinley segment of the Denali fault system since the igneous mass crystallized about 38 m.y....
Chemical variations across the Alaska-Aleutian Range batholith
Bruce L. Reed, Marvin A. Lanphere
1974, Journal of Research of the U.S. Geological Survey (2) 343-352
A study of 79 chemical analyses of plutonic rocks in the northern part of the Alaska-Aleutian Range batholith shows that K2O and SiO2 in Late Cretaceous and Tertiary rocks decrease toward the Pacific margin and that Al2O3 and CaO increase. Plots for Fe2O3, FeO, MgO, and TiO2 suggest a...
The Border Ranges Fault in south-central Alaska
E. M. MacKevett, George Plafker
1974, Journal of Research of the U.S. Geological Survey (2) 323-329
The Border Ranges fault, a major fault of southern Alaska, can be traced for more than 1,000 km arcuately eastward from Kodiak Island to the St. Elias Mountains. Throughout its extent, the fault juxtaposes upper Paleozoic and lower Mesozoic rocks on the north against upper Mesozoic and Tertiary rocks. This...
Alaska
E. H. Lathram, Arthur Grantz, D.F. Barnes, David A. Brew, A. Thomas Ovenshine, G. Plafker, R.L. Detterman, H.L. Foster, M. Churkin Jr., W. W. Patton Jr., J. M. Hoare, I.L. Tailleur, W. P. Brosge, T. P. Miller, C.L. Sainsbury
1974, Geological Society Special Publication (4) 563-589
No abstract available....
A prototype global volcano surveillance system monitoring seismic activity and tilt
E.T. Endo, P.L. Ward, D.H. Harlow, R. V. Allen, J. P. Eaton
1974, Bulletin Volcanologique (38) 315-344
The Earth Resources Technology Satellite makes it feasible for the first time to monitor the level of activity at widely separated volcanoes and to relay these data almost instantancously to one central office. This capability opens a new era in volcanology where the hundreds of normally...
Garnet-clinopyroxenite from the Red Mountain pluton, Alaska
R. B. Forbes, R. C. Swainbank
1974, GSA Bulletin (85) 285-292
Several lens-shaped and irregular masses of garnet-clinopyroxenite occur along the north margin of the Red Mountain pluton, near Seldovia, Alaska. The pluton is composed of intercalated dunite, clinopyroxenite, and banded chromite layers. The chromite layers appear to dip toward the center of the mass, but they have been deformed, and...
Subsidence, inundation, and sedimentation; environmental consequences of the 1964 Alaska earthquake in the Portage, Alaska area
A. T. Ovenshine, D. E. Lawson, S. R. Bartsch-Winkler
1974, Earthquakes & Volcanoes (USGS) (6) 3-9
No abstract available....
Geologic map of the United States (exclusive of Alaska and Hawaii)
Philip Burke King, Helen M. Beikman, Gertrude J. Edmonston
1974, Report
No abstract available....
Breeding of the black guillemot in northern Alaska
G.J. Divoky, G.E. Watson, James C. Bartonek
1974, Condor (76) 339-343
No abstract available....
An Anvilian (early pleistocene) marine fauna from western Seward Peninsula, Alaska
D.M. Hopkins, R.W. Rowland, R.E. Echols, P.C. Valentine
1974, Quaternary Research (4) 441-470
Cover sediments of the York Terrace exposed near the California River, western Seward Peninsula, Alaska, yield mollusks, ostracodes, and foraminifera that lived during the Anvilian transgression of early Pleistocene age. The fossiliferous sediments lie at the inner edge of the York Terrace, a...
Bibliography of published reports by the U.S. Geological Survey personnel on the geology and hydrology of the Amchitka Supplementary Test Area, Aleutian Islands, Alaska, 1969-1972
1973, Report
No abstract available....
Hydraulic tests in hole UAe-2, Amchitka Island, Alaska
Wilbur C. Ballance
1973, Report
Inflatable straddle packers were used to isolate and test 19 intervals ranging from 56 to 747 meters (183 to 2,450 feet) each in hole UAe-2, Amchitka Island, Alaska. Packer seats were poor in part of the hole because of unstable wall conditions. Thus, some zones had to be tested several...
Probable rift origin of Canada Basin, Arctic Ocean
Irvin L. Tailleur
1973, Book chapter, Arctic geology: proceedings of the Second International Symposium on Arctic Geology (AAPG Memoir 19)
Formation of the Canada basin by post-Triassic rifting seems the most workable and logical hypothesis on the basis of available information. Speculated counterclockwise rotation of the Alaska-Chukchi continental edge best rationalizes the complex geology of northern Alaska, whereas the assumption that a single continental block was present before the Jurassic...
Revised age and structural interpretations of Nuka Formation at Nuka Ridge, northwestern Alaska: Geologic notes
I.L. Tailleur, B. L. Mamet, J.T. Dutro Jr.
1973, American Association of Petroleum Geologists Bulletin (57) 1348-1352
New collections of foraminifers and macrofossils from Nuka Ridge, the type area of the enigmatic Nuka Formation, demonstrate that the type Nuka Formation is not a continuous stratigraphic sequence as originally described. Paleontologic evidence indicates the presence of a structurally repeated sequence at Nuka Ridge consisting of Upper Mississippian (Meramec...
Recurrence of seismic migrations along the central California segment of the San Andreas fault system
M.D. Wood, S.S. Allen
1973, Nature (244) 213-215
VERIFICATIONS of tectonic concepts1 concerning seafloor spreading are emerging in a manner that has direct bearing on earthquake prediction. Although the gross pattern of worldwide seismicity contributed to the formulation of the plate tectonic hypothesis, it is the space-time characteristics of this seismicity that may contribute more...
Aeromagnetic survey, eastern part of Wiseman Quadrangle, Northeast Alaska
Water Resources Division, U.S. Geological Survey
1973, Open-File Report 73-306
Aeromagnetic survey, western half of Beaver quadrangle, northeast Alaska
Water Resources Division, U.S. Geological Survey
1973, Open-File Report 73-309
No abstract available....
United States Geological Survey Alaska program, 1973
Water Resources Division, U.S. Geological Survey
1973, Circular 683
This report on the Alaskan activities of the U.S. Geological Survey contains up-to-date accounts of recent results and summaries of plans for the summer of 1973. It is organized in six parts: (1) responsibilities and services of the Geological Survey; (2) organization of the U.S. Geological Survey; (3) Alaskan field...
Aeromagnetic survey, eastern part of Bettles Quadrangle, northeast Alaska
Water Resources Division, U.S. Geological Survey
1973, Open-File Report 73-305
Geochemical survey of the eastern Solomon and southeastern Bendeleben quadrangles, Seward Peninsula, Alaska
Thomas P. Miller, Donald G. Grybeck
1973, Open-File Report 73-189
Geology and mineral deposits of the Chulitna-Yentna mineral belt, Alaska
C.C. Hawley, A. L. Clark
1973, Professional Paper 758-A
Aeromagnetic survey, Melozitna A-1 Quadrangle, Northeast Alaska
Water Resources Division, U.S. Geological Survey
1973, Open-File Report 73-307
Analyses of stream-sediment samples from the Bettles and the southern part of Wiseman quadrangles, Alaska
William Wallace Patton Jr., Thomas P. Miller
1973, Open-File Report 73-219
No abstract available....
Aeromagnetic survey, western half of Livengood Quadrangle, Northeast Alaska
Water Resources Division, U.S. Geological Survey
1973, Open-File Report 73-311
Geologic setting and chemical characteristics of hot springs in central and western Alaska
Thomas P. Miller, Ivan Barnes, William Wallace Pattan Jr.
1973, Open-File Report 73-188
Numerous hot springs occur in a variety of geologic provinces in central and western Alaska. Granitic plutons are common to all the provinces and the hot springs are spatially associated with the contacts of these plutons. Of 23 hot springs whose bedrock geology is known, all occur within 3 miles...
