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Page 6067, results 151651 - 151675

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Lava tree molds of the September 1961 eruption, Kilauea Volcano, Hawaii
James G. Moore, D.H. Richter
1962, GSA Bulletin (73) 1153-1158
Well-developed lava tree molds were formed during the September 1961 eruption along the east rift zone of Kilauea Volcano. The upright molds were produced where fluid lava, flowing through dense tropical forest, became chilled against the larger trees and tree ferns and later drained away. Where the lava ponded temporarily...
Metallic spherules in tektites from Isabela, Philippine Islands
E. C. T. Chao, I. Adler, E.J. Dwornik, J. Littler
1962, Science (135) 97-98
Iron-nickel spherules, as much as 0.5 mm in diameter, have been found completely embedded in some philippinites. The spherules consist mainly of kamacite with unidentified pink inclusions. The meteoritic origin of these spherules seems reasonable, suggesting that the tektites containing them were formed by asteroidal or meteoritic impact....
Metallogenetic provinces of Chile, S. A
F. C. Martinez-Ruiz, G. E. Ericksen
1962, Economic Geology (57) 91-106
The metalliferous deposits of Chile tend to be restricted to well denned metallogenetic provinces, each characterized by a dominant mineral or mineral assemblage. The most important ore deposits are those of copper, iron, silver, gold, and manganese. The primary minerals are few in number and most are simple sulfides and...
Records of wells and ground-water quality in Burlington County, New Jersey
F. Eugene Rush
1962, Report
<This basic-data report is limited to the presentation of selected drillers' logs and their geologic correlations, well data, and chemical analyses of water from wells in Burlington County, N. J. The county lies within the Coastal Plain province; it is underlain by unconsolidated sediments of Quarternary, Tertiary, and Cretaceous...
Generalized structure contour maps of the New Jersey coastal plain
Hoarce G. Richards, F. H. Olmsted, James L. Ruhle
1962, Geologic report (New Jersey) 4
Twelve generalized structural contour maps were prepared from a study of 169 well logs or sample logs of drill cuttings from the Coastal Plain of New Jersey, Delaware, and the E astern Shore of Maryland. The configuration of the tops of the nonmarine Cretaceous deposits (Patuxent , Patapsco, Raritan, and Magothy formations) and...
Physical properties of evaporite minerals
Eugene C. Robertson
1962, Trace Elements Investigations 821
The data in the following tables were abstracted from measurements of physical properties of evaporite minerals or of equivalent synthetic compounds. The compounds considered are the halide and sulfate salts which supposedly precipitated from evaporating ocean water and which form very extensive and thick "rock salt" beds. These beds are...
Diffusion features of uranium-vanadium deposits in Montezuma Canyon, Utah
L.C. Huff, F. G. Lesure
1962, Economic Geology (57) 226-237
Uranium-vanadium deposits in the Salt Wash Member of the Morrison Formation in Montezuma Canyon, San Juan County, Utah, exhibit zoning that is interpreted as a result of metal transport by diffusion. The concentric zones consist of a brown nonmineralized core, an olive-gray mineralized shell, and a gray nonmineralized outer zone. The...
Diatremes and uranium deposits in the Hopi Buttes, Arizona
Eugene Merle Shoemaker, C. H. Roach, F. M. Byers Jr.
A.E.J. Engel, Harold L. James, B. F. Leonard, editor(s)
1962, Book chapter, Petrologic studies: A volume in honor of A. F. Buddington
The Hopi Buttes diatremes erupted in a shallow lake that was filled in as volcanic activity progressed in Pliocene time. At the end of the period of volcanism the landscape included low lava domes capping some of the diatremes, a few flows, and numerous craters of the maar type, surrounded...
Lower temperature terminations of the three-phase region plagioclase-alkali feldspar-liquid
D. B. Stewart, E. H. Roseboom Jr.
1962, Journal of Petrology (3) 280-315
Geological and experimental evidence indicate that the three-phase field, plagioclase-alkalifeldspar-liquid, may terminate in several different ways. The possible terminations have been developed from Schreinemakers' rules governing the disappearance of three-phase fields. In igncous rocks, these different terminations may arise from variations in the relative amounts of additional components in magmas, or from...
K/Na ratio of Cenozoic igneous rocks of the western United States
J.G. Moore
1962, Geochimica et Cosmochimica Acta (26) 101-130
The potassium and sodium content of chemically analysed Cenozoic igneous rocks from about 150 areas of the western United States has been examined. For each area a plot of the molecular proportion K2O(K2O + Na2O)">K2O(K2O + Na2O) [Niggli's k-value] is shown, and the projected k-value determined at 50...
Summary of new data on rock samples G-1 and W-1
M. Fleischer, R.E. Stevens
1962, Geochimica et Cosmochimica Acta (26) 525-543
Published and unpublished analyses for major and minor constituents that have become available since April, 1960, are collected for the granite G-1 and diabase W-1. “Best values” are suggested for some of the elements....
The relative efficiency of nylon and cotton gill nets for taking lake trout in Lake Superior
Richard L. Pycha
1962, Journal of the Fisheries Research Board of Canada (19) 1085-1094
The change from cotton to nylon twine for gill nets in 1949–52 resulted in a sharp increase in the efficiency of the most important gear used for taking lake trout in Lake Superior, and, consequently, biased estimates of fishing intensity and abundance severely.From early May to the end of September...
Problem of the thermodynamic status of the mixed-layer minerals
E-An Zen
1962, Geochimica et Cosmochimica Acta (26) 1055-1067
Minerals that show mixed layering, particularly with the component layers in random sequence, pose problems because they may behave thermodynamically as single phases or as polyphase aggregates. Two operational criteria are proposed for their distinction. The first scheme requires two samples of mixed-layer material which differ only in the proportions...
Magnesite and brucite in the United States, exclusive of Alaska and Hawaii
Benjamin Gildersleeve
1962, Mineral Investigations Resource Map 27
The important deposits of magnesite (MgCO3) and brucite (MgO.H2O) in the United States (exclusive of Alaska and Hawaii) are shown on the accompanying map. Single deposits and groups of deposits are shown by geometric symbols according to four size categories based on estimated production plus reserves. These categories are: less...