Composition of monazites from pegmatites in eastern Minas Gerais, Brazil
K. J. Murata, C. V. Dutra, da Costa, J.J.R. Branco
1959, Geochimica et Cosmochimica Acta (16) 1-14
Two zoned pegmatites in south-eastern Minas Gerais were sampled in detail for their content of monazite and xenotime and the monazite was analysed for certain of the rare-earth elements and thorium.The ratio of xenotime to monazite increases in both pegmatites from the wall toward the quartz core. The content of...
Core logs from Bristol, Cadiz, and Danby Dry Lakes, San Bernardino County, California
Allan Mordorf Bassett, D.H. Kupfer, F.C. Barstow
1959, Bulletin 1045-D
Detailed core logs of four holes drilled in Bristol, Cadiz, and Danby Dry Lakes in southeastern San Bernardirio County, Calif., are given in the present report. These 3 dry lakes lie in a chain of basins having a drainage area of 4,000 square miles which is made up of alluvial...
α-Radioactivity of cerium-142
F. E. Senftle, T. W. Stern, V. P. Alekna
1959, Nature (184) 630
JOHNSON AND NIER1 have measured the atomic masses of some of the rare-earth isotopes and have shown that the mass difference cerium-142—(barium-138 + helium-4) is equivalent to 1.68 ± 0.10 MeV. Similar results for the naturally occurring samarium and neodymium isotopes show that the α-active isotope of each element is the one...
The geology and ore deposits of Upper Mayflower Gulch, Summit County, Colorado
John Alexander Randall
1958, Open-File Report 58-79
Upper Mayflower Gulch is on the highly glaciated western side of the Tenmile Range near Kokomo in central Colorado. Somewhat less than $500,000 in silver and gold has been produced from the area since the first mining in the 1880' s. In the mapped area high grade regional metamorphism has...
Fractional precipitation of rare earths with phosphoric acid
M. K. Carron, C.R. Naeser, H. J. Rose Jr., F.A. Hildebrand
1958, Bulletin 1036-N
Zirconium and hafnium in the southeastern Atlantic States
J.B. Mertie Jr.
1958, Bulletin 1082-A
The principal source of zirconium and hafnium is zircon, though a minor source is baddeleyite, mined only in Brazil. Zircon is an accessory mineral in igneous, metamorphic, and sedimentary rocks, but rarely occurs in hardrock in minable quantities. The principal sources of zircon are therefore alluvial deposits, which are mined...
Radioactive phonolite and associated thorium - rare earth - niobium veins in the Laughlin Peak area, Chico Hills, Colfax County, New Mexico
Charles M. Tschanz
1958, Trace Elements Investigations 230
Contact metamorphism adjacent to a teschenite intrusion
Howard G. Wilshire
1958, Journal of the Geological Society of Australia (6) 11-20
Shale adjacent to the upper contact of an annular teschenite intrusion was converted to andalusite hornfels in an aureole 2–4 feet wide. At some points along the contact there is no evidence of anhydrous recrystallization. Rarely, magmatic reaction with small shale xenoliths resulted in formation of cordierite‐sillimanite (?) hornfelses, and...
Dithizone method for determination of lead in monazite
R. A. Powell, C. A. Kinser
1958, Analytical Chemistry (30) 1139-1141
In the determination of lead in monazite-to be used as the basis for geologic age measurements-it was necessary to eliminate interferences due to the presence of phosphates of thorium and the rare earth metals. The method involves attacking the monazite samples with hot, concentrated sulfuric acid, then taking them up...
Biogeochemistry of the rare-earth elements with particular reference to hickory trees
W. O. Robinson, H. Bastron, K. J. Murata
1958, Geochimica et Cosmochimica Acta (14) 55-67
Hickory trees concentrate the rare-earth elements in their leaves to a phenomenal degree and may contain as much as 2300 p.p.m. of total rare earths based on the dry weight of the leaves. The average proportions of the individual elements (atomic percent of the total rare-earth elements) in the leaves...
Teratological hermaphroditism in the chum salmon Oncorhynchus keta (Walbaum)
J. R. Uzmann, M. N. Hesselholt
1957, Progressive Fish-Culturist (20) 191-192
The anomalous condition of hermaphroditism appears to be no less rare in fish than in other normally dioecious animals. Previous records of bisexuality' in the Pacific salmons, Oncorhynchus spp., are few in number despite the intensive study accorded this group. Rutter (1902) reported the condition in two king salmon (O....
The role of lead and excess oxygen in uranite
Robert Morris Berman
1957, Open-File Report 57-11
Analysed samples of uraninite were x-rayed, annealed by heating to 550° and 900° for various times in a nitrogen atmosphere, and x-rayed again. A decrease in unit cell size was generally observed. Calculations on the basis of Vegard's Law showed that the ordering of the interstitial oxygen ions could account...
Radioactive rare-earth deposit at the Scrub Oaks Mine, Morris County, New Jersey
Harry Klemic, A. V. Heyl, Audrey R. Taylor, Jerome Stone
1957, Trace Elements Investigations 639
Continued utilization of ground-water storage basins
H. E. Thomas
1957, Open-File Report 57-109
Doubtless most of you are more familiar with surface reservoirs, their capabilities and limitations, than you are with ground-water reservoirs. I believe that this is true of people in general, even the experts. And because of our inadequate knowledge of ground-water reservoirs, our use of them creates problems that are...
Geology of possible petroleum provinces in Alaska
Don John Miller, Thomas G. Payne, George Gryc
1957, Open-File Report 57-72
The history of petroleum exploration in Alaska and the geology of possible petroleum provinces in Alaska are reviewed. Maps showing Alaska's major Mesozoic and Tertiary tectonic elements, possible petroleum provinces, and indications of petrol, are included in this report. Annotated references in Geological Survey publications relating to petroleum and oil...
Selected annotated bibliography of thorium and rare-earth deposits in the United States including Alaska
Katharine L. Buck
1957, Bulletin 1019-F
Physical and ecologic features of the Sagadahoc Bay Tidal Flat, Georgetown, Maine
W.H. Bradley
1957, GSA Memoirs (67)
Sagadahoc Bay is open to the ocean at the south and has no significant fresh-water stream entering it. The intertidal zone is roughly a mile long by half a mile wide; most of it is made up of medium to fine sand, but organic-rich mud characterizes the head of the...
Systematic variation of rare-earth elements in cerium-earth minerals
K. J. Murata, H. J. Rose Jr., M. K. Carron, J.J. Glass
1957, Geochimica et Cosmochimica Acta (11) 141-161
In a continuation of a study reported previously, rare-earth elements and thorium have been determined in monazite, allanite, cerite, bastnaesite, and a number of miscellaneous cerium-earth minerals. A quantity called sigma (∑), which is the sum of the atomic percentages of La, Ce, and Pr, is proposed as an index...
Ringworm in a population of snowshoe hares
Lowell W. Adams, S. B. Salvin, W. J. Hadlow
1956, Journal of Mammalogy (37) 94-99
The occurrence of ringworm, or dermatomycosis, in wild animals has been rarely reported. DeLamater (1939) described infections of Trichophyton mentagrophytes in common gray squirrels on and near the Johns Hopkins University campus at Baltimore. Errington (1942) and Charles (1946) reported on the occurrence of T. mentagrophytes in 35 of 364 litters (9.6%) of muskrats...
Heavy-mineral suites in unconsolidated Paleocene and younger sands, western Tennessee
Reginald R. Blankenship
1956, Journal of Sedimentary Petrology (26) 356-362
Heavy-mineral suites from unconsolidated sands of Wilcox and Claiborne age (Eocene) in the subsurface of western Tennessee were tabulated and compared with heavy-mineral suites obtained from outcropping sands known to be of Midway (Paleocene) and Wilcox age and younger. In the subsurface at Memphis, both pink and colorless garnet are...
Geology of the Ralston Buttes district, Jefferson County, Colorado: a preliminary report
Douglas M. Sheridan, Charles H. Maxwell, Arden L. Albee, Richard Van Horn
1956, Trace Elements Memorandum 901
The Ralston Buttes district in Jefferson County is one of the most significant new uranium districts located east of the Continental Divide in Colorado. The district is east of the Colorado Front Range mineral belt, along the east front of the range. From November 1953 through October 1956, about 10,000...
Duttonite, a new quadrivalent vanadium oxide from the Peanut mine, Montrose County, Colorado
Mary Eleanor Thompson, Carl Houston Roach, Robert Meyrowitz
1956, Trace Elements Investigations 582
Duttonite, a new quadrivalent vanadium oxide from the Peanut mine, Montrose County, Colo., has the formula VO(OH)2. The mineral occurs as crusts and coatings of pale-brown transparent platy crystals, as one of the first oxidation products of montroseite ore. It is associated with melanovanadite and abundant crystals of hexagonal...
Behavior of Colorado Plateau uranium minerals during oxidation
Robert Minard Garrels, C. L. Christ
1956, Trace Elements Investigations 588
Uranium occurs as U(VI) and U(IV) in minerals of the Colorado Plateau ores. The number of species containing U(VI) is large, but only two U(IV) minerals are known from the Plateau: uraninite, and oxide, and coffinite, a hydroxy-silicate. These oxidize to yield U(VI) before reacting significantly with other...
Summary of the mineralogy of the Colorado Plateau uranium ores
Alice D. Weeks, Robert Griffin Coleman, Mary E. Thompson
1956, Trace Elements Investigations 583
In the Colorado Plateau uranium has been produced chiefly from very shallow mines in carnotite ores (oxidized vanadiferous uranium ores) until recent deeper mining penetrated black unoxidized ores in water-saturated rocks and extensive exploration has discovered many deposits of low to nonvanadiferous ores. The uranium ores include a wide...
Selected annotated bibliography of the geology of uraniferous and radioactive native bituminous substances, exclusive of coals, in the United States
Harriet Nell Jones
1956, Trace Elements Investigations 536
Native bituminous substances are divided into two groups, 1) bitumens and, 2) pyrobitumens. Bitumens are composed principally of hydrocarbons substantially free from oxygenated bodies, are fusible, and are soluble in carbon disulfide. Native bitumens occur in liquid and solid forms. The native liquid bitumens include all petroleums or crude oils....
