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Page 5878, results 146926 - 146950

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Altithermal timberline advance in Western United States
Valmore C. LaMarche Jr., H. A. Mooney
1967, Nature (213) 980-982
A combination of radiocarbon dating and counting of annual rings of the remains of trees has been used to establish the time of retreat of forests from sub-alpine mountains in California and Nevada. The information obtained can serve as a palaeoclimatic indicator....
Geomagnetic polarity epochs: Nunivak Island, Alaska
A. Cox, G. B. Dalrymple
1967, Earth and Planetary Science Letters (3) 173-177
New paleomagnetic and potassium-argon dating measurements have been made of basalt flows from Nunivak Island, Alaska, with the following results. (1) The best estimate of the age of the Brunhes/Matuyama polarity epoch boundary is found to be 0.694 m.y. (2) The best...
Sulfide solubilities in alteration-controlled systems
J.J. Hemley, C. Meyer, C.J. Hodgson, A.B. Thatcher
1967, Science (158) 1580-1582
Solubilities of sphalerite (ZnS) and galena (PbS) were determined at 300° to 500°C and 1000 bars total pressure in a chemical environment buffered...
Base surge in recent volcanic eruptions
J.G. Moore
1967, Bulletin Volcanologique (30) 337-363
A base surge, first identified at the Bikini thermonuclear undersea explosion, is a ring-shaped basal cloud that sweeps outward as a density flow from the base of a vertical explosion column. Base surges are also common in shallow underground test explosions and are formed by expanding gases which first vent...
An operational theory of laser-radar selenodesy
R.L. Wildey, R.E. Schlier, J. A. Hull, G. Larson
1967, Icarus (6) 315-347
A theory of the utilization of laser techniques for ranging from the Earth to the Moon for the purpose of providing control points on the lunar surface at which the figure of the Moon is measured to an accuracy at least an order of magnitude better than that of...
The occurrence and origin of lamellar troilite in iron meteorites
R. Brett, E.P. Henderson
1967, Geochimica et Cosmochimica Acta (31) 721-730
A number of iron meteorites contain elongated inclusions consisting predominantly of troilite, which have been termed Reichenbach lamellae. Two types of inclusions exist, the first up to 6 cm long and 0·2 mm wide, the second up to 2 cm long and 3 mm wide. The first type contains troilite...
Borate mineral assemblages in the system Na2O-CaO-MgO-B2O3-H2O
C. L. Christ, A.H. Truesdell, Richard C. Erd
1967, Geochimica et Cosmochimica Acta (31) 313-337
The significant known hydrated borate mineral assemblages (principally of the western United States) in the system Na2O-CaO-MgO-B2O3-H2O are expressible in three ternary composition diagrams. Phase rule interpretation of the diagrams is consistent with observation, if the activity of H2O is generally considered to be determined by the geologic environment. The...
Potassium-argon ages of recent rhyolites of the Mono and Inyo craters, California
G. Brent Dalrymple
1967, Earth and Planetary Science Letters (3) 289-298
Twenty-two KAr ages were determined for sanidine samples from 10 rhyolite domes of the Mono and Inyo Craters to test the applicability of KAr dating to volcanic rocks of Recent age. Comparison of the results with ‘blank’ and dosed analyses shows...
Ground-water research in the U.S.A.
C. L. McGuinness
1967, Earth-Science Reviews (3) 181-202
Ground-water reservoirs and the overlying unsaturated zone-collectively, the "subsurface"-have an enormous capacity to supply water to wells and useful plants, to store water to meet future needs for the same purposes, and, under suitable precautions, to accept wastes. This capacity can be exploited on a maximum scale, however, only on...
On the chemistry of Jupiter's upper atmosphere
W.C. Saslaw, R.L. Wildey
1967, Icarus (7) 85-93
We conduct a first investigation into the ion-molecule chemistry of the upper Jovian atmosphere. Experimental results show that intense ultraviolet radiation reacts with the constituents of the Jovian atmosphere to produce C2H4, C2H6, C3H8, and higher polymers. The general procedure for calculating both equilibrium and nonequilibrium abundances of these products...
Northern part, Ten Mile and Taunton River basins
John R. Williams, Richard E. Willey
1967, Massachusetts Hydrologic - Data Report 10
The northern part of the Ten Mile and Taunton River basins is an area of about 195 square miles within Norfolk, Plymouth, and Bristol Counties in southeastern Massachusetts. The northern boundary of the area (plate 1) is the drainage divide separating these basins from that of the Charles, Neponset, and...