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Page 6604, results 165076 - 165100

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Birds of Isle Royale in Lake Superior
L.W. Krefting, F.B. Lee, P.C. Shelton, K.T. Gilbert
1966, Special Scientific Report - Wildlife 94
This report constitutes an annotated list of 197 species of birds reported from Isle Royale National Park, a 210-square-mile archipelago in northwestern Lake Superior including some 200 islets and rock outcrops. The island is 45 miles long and 8 miles wide at its widest point. Bird distribution and habitats are...
Leveling
1966, Topographic instructions of the United States geological survey 2E1-2E5
Geodetic leveling by the U.S. Geological Survey provides a framework of accurate elevations for topographic mapping. Elevations are referred to the Sea Level Datum of 1929....
Half-cell potentials of semiconductive simple binary sulphides in aqueous solution
M. Sato
1966, Electrochimica Acta (11) 361-373
Theoretical consideration of the charge-transfer mechanism operative in cells with an electrode of a semiconductive binary compound leads to the conclusion that the half-cell potential of such a compound is not only a function of ionic activities in the electrolytic solution, but also a function of the activities of the...
Some alkali and titania analyses of tektites before and after G-1 precision monitoring
D.B. Tatlock
1966, Geochimica et Cosmochimica Acta (30) 123-128
A comparison of 55 older analyses of Australasian tektites with 110 modern precisely monitored analyses suggests that more than half of the older alkali and titania determinations are decidedly inaccurate and misleading. Deviations of the older analyses from the restricted values of the...
Disequilibrium of the 238U series in basalt
B.L.K. Somayajulu, M. Tatsumoto, J.N. Rosholt, R. J. Knight
1966, Earth and Planetary Science Letters (1) 387-391
Radioisotope analyses of basalt samples from Hawaii, Japan, and Iwo Jima show that: (1)234U and238U are virtually in radioactive equilibrium, (2)230Th exceeds equilibrium values in all these samples, (3)210Pb concentrations range from 10–200% of the equilibrium values and average 30% deficient, and...
Effects of weathering on the UPb ages of zircon from the Morton Gneiss, Minnesota
T. W. Stern, S. S. Goldich, M. F. Newell
1966, Earth and Planetary Science Letters (1) 369-371
Weathering has caused large losses of lead from the zircon in the residual clay derived from the Morton Gneiss of southwestern Minnesota, drastically reducing the 206Pb/238U and the 207Pb/235U ages. The 207Pb/206Pb age probably has not been significantly affected. Loss of lead by leaching during weathering has not been adequately...