Lunar troilite: Crystallography
H. T. Evans Jr.
1970, Science (167) 621-623
Fine, euhedral crystals of troilite from lunar sample 10050 show a hexagonal habit consistent with the high-temperature NiAs-type structure. Complete three-dimensional counter intensity data have been measured and used to confirm and refine Bertaut's proposed low-temperature crystal structure....
Specific heats of lunar surface materials from 90 to 350 degrees Kelvin
R. A. Robie, B. S. Hemingway, W.H. Wilson
1970, Science (167) 749-750
The specific heats of lunar samples 10057 and 10084 returned by the Apollo 11 mission have been measured between 90 and 350 degrees Kelvin by use of an adiabatic calorimeter. The samples are representative of type A vesicular basalt-like rocks and of finely divided lunar soil. The...
Petrology of unshocked crystalline rocks and shock effects in lunar rocks and minerals
E. C. T. Chao, O.B. James, J.A. Minkin, J.A. Boreman, E.D. Jackson, C.B. Raleigh
1970, Science (167) 644-647
On the basis of rock modes, textures, and mineralogy, unshocked crystalline rocks are classified into a dominant ilmenite-rich suite (subdivided into intersertal, ophitic, and hornfels types) and a subordinate feldspar-rich suite (subdivided into poikilitic and granular types). Weakly to moderately shocked rocks show high strain-rate deformation and solid-state transformation of...
Quantitative chemical analysis of lunar samples
L. C. Peck, V. C. Smith
1970, Science (167) 532-532
In three lunar samples the high titanium contents previously reported were confirmed. Water and ferric oxide were absent....
Age of the moon: An isotopic study of uranium-thorium-lead systematics of lunar samples
M. Tatsumoto, J.N. Rosholt
1970, Science (167) 461-463
Concentrations of U, Th, and Pb in Apollo 11 samples studied are low (U. 0.16 to 0.87; Th, 0.53 to 3.4; Pb, 0.29 to 1.7, in ppm) but the extremely radiogenic lead in samples allows radiometric dating. The fine dust and the breccia have a concordant age...
Crystallography of some lunar plagioclases
D. B. Stewart, D.E. Appleman, J.S. Huebner, J. R. Clark
1970, Science (167) 634-635
Crystals of calcic bytownite from type B rocks have space group I1 with c ≈ 14 angstroms. Bytownite crystals from type A rocks...
Magnetic studies of lunar samples
Richard R. Doell, C. Sherman Gromme, A. N. Thorpe, F. E. Senftle
1970, Science (167) 695-697
The remanent magnetism of a lunar type C breccia sample includes a large viscous component with a time constant of several hours, and a high coercivity remanence, possibly acquired by impact processes on the lunar surface. Ilmenite(?) and metallic iron in breccias, and ferrous and metallic iron in glass beads...
Lunar soil: Size distribution and mineralogical constituents
M.B. Duke, C.C. Woo, M. L. Bird, G.A. Sellers, R. B. Finkelman
1970, Science (167) 648-650
The lunar soil collected by Apollo 11 consists primarily of submillimeter material and is finer in grain size than soil previously recorded photographically by Surveyor experiments. The main constituents are fine-grained to glassy rocks of basaltic affinity and coherent breccia of undetermined origin. Dark glass, containing abundant nickel-iron spheres, coats...
Thermoluminescence of lunar samples
G. B. Dalrymple, Richard R. Doell
1970, Science (167) 713-715
Appreciable natural thermoluminescence with glow curve peaks at about 350 degrees centigrade for lunar fines and breccias and above 400 degrees centigrade for crystalline rocks has been recognized in lunar samples. Plagioclase has been identified as the principal carrier of thermoluminescence, and the difference in peak temperatures indicates compositional or...
Lunar regolith at Tranquillity Base
E.M. Shoemaker, M. H. Hait, G.A. Swann, D. L. Schleicher, D.H. Dahlem, G. G. Schaber, R. L. Sutton
1970, Science (167) 452-455
The regolith at Tranquillity Base is a layer of fragmental debris that ranges in thickness from about 3 to 6 meters. The thickness of the regolith and the exposure histories of its constituent fragments can be related, by means of a relatively simple model, to the observed crater distribution....
Lunar clinopyroxenes: Chemical composition, structural state, and texture
M. Ross, A.E. Bence, E.J. Dwornik, J. R. Clark, J. J. Papike
1970, Science (167) 628-630
Single-crystal x-ray diffraction, microprobe, optical and electron optical examinations of clinopyroxenes from Apollo 11 lunar samples 10003, 10047, 10050, and 10084 show that generally the crystals are composed of (001) augite-pigeonite intergrowths in varying ratios. Transmission electron micrographs reveal abundant exsolution lamellae, many only 60 Å thick....
Water, hydrogen, deuterium, carbon, carbon-13, and oxygen-18 content of selected lunar material
I. Friedman, J. R. O’Neil, L.H. Adami, J.D. Gleason, K. Hardcastle
1970, Science (167) 538-540
The water content of the breccia is 150 to 455 ppm, with a δD from—580 to —870 per mil. Hydrogen gas content is...
Emission spectrographic determination of trace elements in lunar samples
C. Annell, A. Helz
1970, Science (167) 521-523
Eighteen minor or trace elements were detected and determined by emission spectroscopy. Direct d-c arc excitation of powdered samples was used with three variations in the procedure. Thirteen lunar samples consisting of four fine-grained igneous rocks, one medium-grained igneous rock, seven breccias, and one sample of fines were analyzed. The...
Semimicro chemical and x-ray fluorescence analysis of lunar samples
H. J. Rose Jr., F. Cuttitta, E.J. Dwornik, M. K. Carron, R.P. Christian, J.R. Lindsay, D.T. Ligon, R.R. Larson
1970, Science (167) 520-521
Major and selected minor elements were determined in seven whole rock fragments, five portions of pulverized lunar rock, and the lunar soil. Three different rock types were represented: vesicular, fine-grained basaltic rocks; medium- to coarse-grained, vuggy gabbroic rocks; and breccia. The ranges (in percent) for the major...
Suspended matter in surface waters of the Atlantic continental margin from Cape Cod to the Florida Keys
F.T. Manheim, R.H. Meade, G. C. Bond
1970, Science (167) 371-376
Appreciable amounts of suspended matter (> 1.0 milligram per liter) in surface waters are restricted to within a few kilometers of the Atlantic coast. Particles that escape estuaries or are discharged by rivers into the shelf region tend to travel longshoreward rather than seaward. Suspended matter farther offshore, chiefly amorphous...
Dual microscope comparator for fission track studies
J. R. Dooley Jr., R. B. Taylor, F. J. Jurceka
1970, Review of Scientific Instruments (41) 887-888
No abstract available....
The river and the rocks : the geologic story of Great Falls and the Potomac River Gorge
1970, Report
Summary records of supply wells and test wells in the Post Headquarters area, White Sands Missile Range, New Mexico
James B. Cooper
1970, Report
No abstract available....
Uranium in Texas
D. Hoye Eargle
1970, Open-File Report 1388 MP
No abstract available....
Some aspects of the availability of water from the Everglades to the Everglades National Park, Florida
J.H. Hartwell
1970, Open-File Report FL 70-007
No abstract available....
Evaluation of streamflow-data program in Florida
J.W. Rabon
1970, Open-File Report FL 70-008
No abstract available....
Pedro, Livengood, and Tanana: A study of place-names near Fairbanks, Alaska
Paul J. Sorvo
1970, Names (18) 185-190
In the early hours of March 30, 1867, Secretary of State William H. Seward completed the purchase of the remote and unexplored land known as Russian America, or Alaska. Discovered in 1741 by Vitus Bering, Alaska progressed from a Czarist colony to a territory of the United States, and finally,...
Floods of April-May 1969 in upper midwestern United States
H.W. Anderson, H.H. Schwob
1970, Report
No abstract available....
Estimating steady-state evaporation rates from bare soils under conditions of high water table
C.D. Ripple, J. Rubin, T. E. A. Van Hylckama
1970, Report
A procedure that combines meteorological and soil equations of water transfer makes it possible to estimate approximately the steady-state evaporation from bare soils under conditions of high water table. Field data required include soil-water retention curves, water table depth and a record of air temperature, air humidity and wind velocity...
Origin of the lunar regolith at Tranquillity Base
Eugene Merle Shoemaker, M. H. Hait, Gordon Alfred Swann, D. L. Schleicher, G. G. Schaber, R. L. Sutton, D. H. Dahlen, E. N. Goddard, A. C. Waters
A. A. Levinson, editor(s)
1970, Conference Paper, Proceedings of the Apollo 11 Lunar Science Conference
No abstract available....
