SEARCH · Engineering Papers

Results for “rock”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

SourceResearch connectionFrom yearThrough year

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 703 records · Page 39

All sources NASA NTRS DOE OSTI

NASA NTRS1970

Oxygen, silicon and aluminum in Apollo 11 rocks and fines by 14 MeV neutron activation

Apollo 11 lunar rocks and fines oxygen, Si and Al content determination by neutron activation analysis

Ehmann, W. D.↗

NASA NTRS1970

Lunar rock compositions and some interpretations

Lunar rock composition difference from meteorites and terrestrial basalts, indicating complexities in solar abundances and initial earth and moon compositions

Engel, A. E. J.↗

NASA NTRS1970

The concentration and isotopic composition of hydrogen, carbon and silicon in Apollo 11 lunar rocks and minerals

Apollo 11 lunar rocks and soil hydrogen, C and Si concentration and isotopic composition

Epstein, S.↗

NASA NTRS1970

Elemental abundances by instrumental activation analyses in chips from 27 lunar rocks

Apollo 11 lunar rocks elemental abundances determination by instrumental activation techniques

Ehmann, W. D.↗

NASA NTRS1970

Whole-rock Rb-Sr isotopic age relationships in Apollo 11 lunar samples

Apollo 11 lunar rock Rb-Sr isotopic age relationships, discussing magmatic fractionation of Rb relative to Sr in moon primordial material

Hurley, P. M.↗

NASA NTRS1970

Elemental abundances of lunar soil and rocks

Apollo 11 lunar rock and soil elemental abundances, discussing composition, volatile element depletion, rare earths, basalt and geochemical processes

Gangadharam, E. V.↗

NASA NTRS1970

Apollo 11 rocks - Oxygen isotope fractionation between minerals, and an estimate of the temperature of formation

Oxygen isotope fractionation and formation temperature of minerals from Apollo 11 rocks, including plagioclase-clinopyroxene-magnetite concordancy diagram

Clayton, R. N.↗

NASA NTRS1970

Apollo 11 lunar samples - K, Rb, Sr, Ba and rare-earth concentrations in some rocks and separated phases

Apollo 11 lunar rock K, Rb, Sr, Ba and rare earth element concentrations, examining relationship to terrestrial and chondritic levels

Philpotts, J. A.↗

NASA NTRS1970

Pattern of bombardment-produced radionuclides in rock 10017 and in lunar soil

Apollo 11 lunar rock and soil bombardment produced radionuclide patterns, discussing solar flare protons and alphas, age determination and astronomical models

Arnold, J. R.↗

NASA NTRS1970

O18/O16 ratios of Apollo 11 lunar rocks and minerals

Apollo 11 lunar rocks and minerals oxygen 18- oxygen 16 ratios

Epstein, S.↗

NASA NTRS1970

Neutron activation analysis of milligram quantities of Apollo 11 lunar rocks and soil

Apollo 11 lunar rocks and soil chemical elements analysis by neutron activation scheme

Kharkar, D. P.↗

NASA NTRS1970

Argon-40/argon-39 dating of lunar rock samples

Apollo 11 crystalline rocks chemical analysis by argon 40/argon 39 dating techniques

Turner, G.↗

NASA NTRS1970

Elemental abundances of major, minor and trace elements in Apollo 11 lunar rocks, soil and core samples

Apollo 11 lunar rocks, soil and core samples major, minor and trace elements abundance by radiochemical and instrumental activation analyses

Rey, P.↗

NASA NTRS1970

Elastic properties of a micro-breccia, igneous rock and lunar fines from Apollo 11 mission

Micro-breccia, igneous rocks and lunar fines elastic properties at ambient conditions and as function of pressure, discussing near surface mare region models

Anderson, O. L.↗

NASA NTRS1970