Disease-protective symbiosis among fishes and other aquatic animals
S. F. Snieszko
1962, Progressive Fish-Culturist (24) 59-59
There have been numerous observations of one species of animal removing parasites from another. These are, however, generally regarded as biological curiosities rather than as significant factors in the control of parasites or disease....
The detection of sulphur in contamination spots in electron probe X-ray microanalysis
I. Adler, E.J. Dwornik, H. J. Rose Jr.
1962, British Journal of Applied Physics (13) 245-246
Sulphur has been identified as one of the elements present in the contamination spot which forms under the electron beam in the microprobe. The presence of the sulphur results in a rapid change in intensity measurements causing a loss of observed intensity for elements other than sulphur. The source of...
Geologic summary of the Appalachian basin, with reference to the subsurface disposal of radioactive waste solutions
George Willis Colton
1961, Trace Elements Investigations 791
The Appalachian basin is an elongate depression in the crystalline basement complex which contains a great volume of predominantly sedimentary stratified rocks. As defined in this paper it extends from the Adirondack Mountains in New York to central Alabama. From east to west it extends from the west flank of...
Geologic summary of the Appalachian Basin, with reference to the subsurface disposal of radioactive waste solutions
George Willis Colton
1961, Open-File Report 62-28
The Appalachian basin is an elongate depression in the crystalline basement complex which contains a great volume of predominantly sedimentary stratified rocks. As defined in this paper it extends from the Adirondack Mountains in New York to central Alabama. From east to west it extends from the west flank of...
Progress report on wells penetrating artesian aquifers in South Dakota
R. W. Davis, C.F. Dyer, J.E. Powell
1961, Water Supply Paper 1534
Artesian aquifers underlie most of South Dakota and large areas in adjacent States. About 15,000 wells have been completed since 1881 in these aquifers within South Dakota. Many wells that originally flowed have ceased to flow and have been abandoned, and others have been equipped with pumps. Many thousands, however,...
Reconnaissance study of quaternary faults in and south of Yellowstone National Park, Wyoming
D. Love
1961, Geological Society of America Bulletin (72) 1749-1764
Normal faults offset a bedrock surface scoured by Pleistocene ice in several areas within and south of Yellowstone National Park. Recurrent earthquake shocks and fresh appearance of some scarps suggest that movement is continuing along some faults. Four systems of faults are described. Quaternary movement occurred along more than 60 faults on the Mirror Plateau, 15...
Paleoecology of an early oligocene biota from Douglass Creek Basin, Montana
Richard L. Konizeski
1961, Geological Society of America Bulletin (72) 1633-1642
Douglass Creek basin lies west of the Continental Divide in the northern part of the Rocky Mountain physiographic province. Numerous minor environmental differences exist between the Douglass Creek area and the Pipestone Springs and Canyon Ferry areas east of the Divide. In the 19th century, however, the three areas had identical...
An aeromagnetic profile from anchorage to Nome, Alaska
E. R. King
1961, Geophysics (26) 716-726
A total-intensity profile was obtained on a 500-mile flight by a U. S. Geological Survey airplane from Anchorage to Nome, Alaska, on May 4, 1954. The average flight altitude was 6,000 ft above sea level except over the Alaska Range where the flight altitude was 9,000 ft. This profile crossed eight of the major...
Local evidence of Pleistocene to recent orogeny in the Argentine Andes
Walden P. Pratt
1961, Bulletin of the Geological Society of America (72) 1539-1550
Deformed continental sedimentary rocks are exposed in the province of Salta, northwestern Argentina, in one of many intermontane basins of the Puna, a high desert region of subparallel north-trending block-fault ranges. These rocks, formerly thought to be Tertiary but recently dated by fossil diatoms as Pleistocene or younger, comprise several thousand feet of...
Late quaternary history of the snake river in the American Falls region, Idaho
Donald E. Trimble, Wilfred James Carr
1961, Bulletin of the Geological Society of America (72) 1739-1748
While mapping the American Falls region, we found evidence that contributes to the middle Pleistocene to Recent history of the Snake River, and indirectly to the history of overflow of Lake Bonneville. Middle Pleistocene to recent rocks in the valley are mainly lacustrine and fluvial silts and clays, with some...
Use of water-well data in interpreting occurrence of aquifers in northeastern Lyon County, Minnesota
Harry G. Rodis
1961, GSA Bulletin (72) 1275-1278
In northeastern Lyon County the areal distribution of aquifers of Cretaceous age determined from well-bottom altitudes suggests a series of interbedded sandstones striking northwestward and overlapping one another to the northeast. Probably the numerous thin sandstone aquifers in the area were deposited near the flanks of a Precambrian granite “high”...
Tephroite in California manganese deposits
D. F. Hewett, C. W. Chesterman, B.W. Troxel
1961, Economic Geology (56) 39-58
Recent studies of manganese deposits and mineral specimens in the Sierran belt of sedimentary rocks as well as in the Klamath Mountains to the north and in the Rand Mountains to the south, have shown the presence of tephroite, the orthosilicate of manganese (Mn2Si04), at numerous localities. Earlier studies of these deposits have shown that the...
Sulfide ores formed from sulfide-deficient solutions 1
T. S. Lovering
1961, Economic Geology (56) 68-99
Assuming that many hydrothermal ore deposits are formed from emanations given off from a magma at depth while it cools through the interval in which latent heat of crystallization is generated, it is shown that this cooling interval for magmatic bodies of moderate size must be measured in tens or hundreds of...
Sulfide ores formed from sulfide-deficient solutions 1
T. S. Lovering
1961, Economic Geology (56) 68-99
Assuming that many hydrothermal ore deposits are formed from emanations given off from a magma at depth while it cools through the interval in which latent heat of crystallization is generated, it is shown that this cooling interval for magmatic bodies of moderate size must be measured in tens or hundreds of...
Aqua de Ney, California, a spring of unique chemical character
J. H. Feth, S. M. Rogers, C. E. Roberson
1961, Geochimica et Cosmochimica Acta (22) 75-86
The chemistry of water of Aqua de Ney, a cold spring of unusual character located in Siskiyou County, Calif., has been re-examined as part of a study of the relation of water chemistry to rock environment. The water has a pH of 11·6 and a silica content of 4000 parts...
Graphic and algebraic solutions of the discordant lead-uranium age problem
L. R. Stieff, T. W. Stern
1961, Geochimica et Cosmochimica Acta (22) 176-199
Uranium-bearing minerals that give lead-uranium and lead—lead ages that are essentially in agreement, i.e. concordant, generally are considered to have had a relatively simple geologic history and to have been unaltered since their deposition. The concordant ages obtained on such materials are, therefore, assumed to approach closely the actual age...
A statistical analysis of the distribution of a larval nematode (Anisakis sp.) in the musculature of chum salmon (Oncorhynchus keta - Walbaum)
A.J. Novotny
1960, Experimental Parasitology (10) 60-67
The pepsin-HCl digestion technique is probably the best method of isolating Anisakislarvae from the musculature of chum salmon. Some losses can be expected due to breakage of the resistant cuticle of Anisakis, and can be estimated to be about 6% when counting the parasites with the unaided eye. Comparisons of Anisakis infections of the dorsal...
Chromite and other mineral deposits in serpentine rocks of the Piedmont Upland, Maryland, Pennsylvania, and Delaware
Nancy C. Pearre, Allen V. Heyl Jr.
1960, Bulletin 1082-K
The Piedmont Upland in Maryland, Pennsylvania, and Delaware is about 160 miles long and at the most 50 miles wide. Rocks that underlie the province are the Baltimore gneiss of Precambrian age and quartzite, gneiss, schist, marble, phyllite, and greenstone, which make up the Glenarm series of early Paleozoic (?)...
Geology and ground-water resources of the lower Little Bighorn River Valley, Big Horn County, Montana, with special reference to the drainage of waterlogged lands
E. A. Moulder, M. F. Klug, D. A. Morris, F. A. Swenson, R. A. Krieger
1960, Water Supply Paper 1487
The lower Little Bighorn River valley, Montana, is in the unglaciated part of the Missouri Plateau section of the Great Plains physiographic province. The river and its principal tributaries rise in the Bighorn Mountains, and the confluence of this northward-flowing stream with the Bighorn River is near the east edge...
A comprehensive system of automatic computation in magnetic and gravity interpretation
R.G. Henderson
1960, Geophysics (25) 569-585
In the interpretation of magnetic and gravity anomalies, downward continuation of fields and calculation of first and second vertical derivatives of fields have been recognized as effective means for bringing into focus the latent diagnostic features of the data. A comprehensive system has been devised for the calculation of any or all of these...
Foothills fault system, western Sierra Nevada, California
L. D. Clark
1960, Bulletin of the Geological Society of America (71) 483-496
A large fault system, here named the Foothills fault system, is the dominant structural feature of the western Sierra Nevada. The steeply dipping to vertical component faults trend northwestward through an area about 200 miles long and 30 miles wide north of 37°30' north latitude. The faulted Paleozoic and Mesozoic...
Geology of the Mayagüez area, Puerto Rico
Peter H. Mattson
1960, Bulletin of the Geological Society of America (71) 319-362
The Mayagüez area forms the southwestern corner of Puerto Rico, west of 67° W. and south of 18° 15' N. One-third of the 640 square kms is covered by thick alluvium. Unconformities separate a basal complex, two sequences of highly folded igneous and sedimentary rocks, and a younger sequence of gently...
The chief oxide-burgin area discoveries, East Tintic district, Utah; A case history
J.B. Bush, D.R. Cook, T. S. Lovering, H. T. Morris
1960, Economic Geology (55) 1507-1540
In 1955 exploration for base and precious metals was undertaken by Bear Creek Mining Company immediately north of the Main Tintic district, Utah. During the course of this work Bear Creek became interested in the East Tintic district, primarily as a result of the activities of the U.S. Geological Survey in...
Deposits of the manganese oxides
Richard G. Petersen
1960, Economic Geology (55) 1-55
One of the problems of the wartime program of studies of domestic manganese deposits concerned the identification of, and modes of origin of the manganese oxide minerals. Of the hundreds of specimens of the oxides collected in the United States, the minerals of about 250...
Ground-water hydrology and glacial geology of the Kalamazoo area, Michigan
Morris Deutsch, K.E. Vanlier, P.R. Giroux
1960, Progress Report 23
The Kalamazoo report area includes about 150 square miles of Kalamazoo County, Mich. The area is principally one of industry and commerce, although agriculture also is of considerable importance. It has a moderate and humid climate and lies within the Lake Michigan “snow belt”. Precipitation averages about 35 inches per...
