Results 191 to 200 of about 1,508 (237)

Lunar Volatiles and Mineralogy Mapper (LVMM) payload for the lunar Volatile and Mineralogy Mapping Orbiter (VMMO)

CubeSats and SmallSats for Remote Sensing VI, 2022
The Lunar Volatile and Mineralogy Mapping Orbiter (VMMO) comprises a low-cost 12U Cubesat with deployable solar arrays, X-Band/UHF communications, option of electric or chemical propulsion, the Lunar Volatiles and Mineralogy Mapper (LVMM) payload, and an optional GPS receiver technology demonstrator. The LVMM facilitates three operational modes: Active
Kruzelecky, Roman, Murzionak, Piotr, Peng, Qi-Yang, Sinclair, Ian, Corriveau, Michel, Cloutis, Edward, Parkinson, Alexis, Dagdick, Brynn, St-Amour, Amelie, Gao, Yang, Bridges, Chris, Baresi, Nicola, Fabris, Andrea Lucca, Rowe, Samantha, Silva, Nuno, Rosa, Paulo, Gameiro, Mauro, Walker, Roger, Vennekens, Johan   +18 more
exaly   +3 more sources

Mineralogy and Petrography of Lunar Samples

Science, 1970
The lunar samples consist largely of augite, calcic plagioclase, and ilmenite. Olivine is a minor constituent of some rocks, as is cristobalite. Other minerals present in small amounts include tridymite, chromite, kamacite, taenite, and troilite. The principal rock types can be broadly grouped into ilmenite basalts and breccias.
B, Mason, K, Fredriksson, E P, Henderson, E, Jarosewich, W G, Melson, K M, Towe, J S, White   +6 more
openaire   +2 more sources

Mineralogy and Petrology of Some Lunar Samples

Science, 1970
Chemical analyses and norms of four samples are presented which confirm original estimates of low silica, unusual abundance of titania, and low oxidation state of the rocks. Accounts are given of mineralogy and petrology of fine- and coarse-grained igneous rocks and microbreccias with emphasis on chemical composition of individual minerals and glasses.
S O, Agrell, J H, Scoon, I D, Muir, J V, Long, J D, McConnell, A, Peckett   +5 more
openaire   +2 more sources

Mineralogical and Petrological Investigations of Lunar Samples

Science, 1970
Fragments of igneous rocks and breccias, and one coarse-grained rock with thin sections, have been studied. Minerals found include pyroxene, plagioclase, olivine, ilmenite, troilite, ulvöspinel, native iron, cristobalite, tridymite, alkali feldspar, apatite, and quartz. Textures are described and interpreted.
J C, Bailey, P E, Champness, A C, Dunham, J, Esson, W S, Fyfe, W S, Mackenzie, E F, Stumpfl, J, Zussman   +7 more
openaire   +2 more sources

Mössbauer Spectroscopy in lunar geology and mineralogy

Topics in Applied Physics, 1975
S S Hafner, Hafner S S
exaly   +2 more sources

Mineralogy and Deformation in Some Lunar Samples

Science, 1970
Observations on the mineralogy and deformation in samples of crystalline rocks, breccias, and fines from Tranquillity Base provide evidence for magmatic and impact processes. Overall homogeneity, igneous textures, and absence of xenoliths in the crystalline rocks indicate derivation from a common titanium-rich magma by internal, anorogenic volcanism ...
J A, Douglas, M R, Dence, A G, Plant, R J, Traill   +3 more
openaire   +2 more sources

Mineralogy and Composition of Lunar Fines and Selected Rocks

Science, 1970
Mineralogical descriptions and both wet chemical analyses and microprobe analyses are given of the glasses and crystalline components of the lunar fines and of the minerals in microgabbros (samples 10050 and 10047). The principal minerals described are various clinopyroxenes, plagioclase, olivine, low cristobalite, low tridymite, ilmenite, iron-nickel,
C, Frondel, C, Klein, J, Ito, J C, Drake
openaire   +2 more sources

Lunar Soil: Size Distribution and Mineralogical Constituents

Science, 1970
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,
M B, Duke, C C, Woo, M L, Bird, G A, Sellers, R B, Finkelman   +4 more
openaire   +2 more sources

Mineralogy, petrology, and geochemistry of the lunar samples

Reviews of Geophysics, 1975
The years 1971–1974 mark the maturing of lunar mineralogy, petrology, and geochemistry into a full‐fledged science. During these years the prime objective of lunar sample investigation teams changed from general surveys of the nature of returned lunar material into problem‐oriented studies. Four general areas of interest that evolved during these years
exaly   +2 more sources

The lunar regolith: Chemistry, mineralogy, and petrology

Reviews of Geophysics, 1982
The lunar regolith, a several meter thick layer of unconsolidated debris, forms the interface between the moon and its space environment. The regolith forms from lithic sources by the destructional processes of comminution and the constructional processes of agglutinate formation. In this manner a steady state soil can develop and will remain in a type
J. J. Papike, S. B. Simon, J. C. Laul
openaire   +1 more source