Results 61 to 70 of about 133,064 (217)
The compositional diversity of non-Vesta basaltic asteroids [PDF]
, 2017 We present near-infrared (0.78-2.45 {\mu}m) reflectance spectra for nine middle and outer main belt (a > 2.5 AU) basaltic asteroids. Three of these objects are spectrally distinct from all classifications in the Bus-DeMeo system and could represent spectral end members in the existing taxonomy or be representatives of a new spectral type. The remainder
arxiv +1 more source
The Apollo 15 coarse fines (4-10 mm) [PDF]
, 1989 A new catalog of the Apollo 15 coarse fines particles is presented. Powell's macroscopic descriptions, resulting from his 1972 particle by particle binocular examination of all of the Apollo 15 4 to 10 mm fines samples, are retained.
Ryder, Graham, Sherman, Sarah Bean
core +1 more source
, 2019 Ecosystem-bedrock interactions power the biogeochemical cycles of Earth's shallow crust, supporting life, stimulating substrate transformation, and spurring evolutionary innovation.
Amistadi, Mary K. +18 more
core +1 more source
Thermographic non-destructive evaluation for natural fiber-reinforced composite laminates [PDF]
, 2018 Natural fibers, including mineral and plant fibers, are increasingly used for polymer composite materials due to their low environmental impact. In this paper, thermographic non-destructive inspection techniques were used to evaluate and characterize ...
Avdelidis, Nicolas P. +7 more
core +3 more sources
The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1909 n ...
openaire +2 more sources
(21238) 1995 WV7: A New Basaltic Asteroid Outside the 3:1 Mean Motion Resonance [PDF]
arXiv, 2006 We report visible to near-infrared spectroscopy and spectrophotometry of asteroid (21238) 1995 WV7 that reveal the presence of deep absorption bands indicating a V taxonomic type with an apparently basaltic surface composition. Since this asteroid is on the other side of the 3:1 mean motion resonance from Vesta, and because the required ejection ...
arxiv
Basalt models for the Mars penetrator mission: Geology of the Amboy Lava Field, California [PDF]
Amboy lava field (San Bernardino County, California) is a Holocene basalt flow selected as a test site for potential Mars Penetrators. A discussion is presented of (1) the general relations of basalt flow features and textures to styles of eruptions on ...
Bunch, T. E., Greeley, R.
core +1 more source
Some volcanologic aspects of Columbia River basalt volcanism relevant to the extinction controversy [PDF]
The Columbia River Basalt Group is the youngest and most thoroughly studied flood-basalt province known; information about it should be relevant to questions about the possible relation of flood-basalt volcanism to mass extinctions. The group has a total
Swanson, Donald A.
core +1 more source
Timescales of carbon turnover in soils with mixed crystalline mineralogies
, 2017 Organic matter–mineral associations stabilize much of the carbon (C) stored globally in soils. Metastable short-range-order (SRO) minerals such as allophane and ferrihydrite provide one mechanism for long-term stabilization of organic matter in young ...
Bern, C. +3 more
core +2 more sources
Soils of Seabee Hook, Cape Hallett, northern Victoria Land, Antarctica [PDF]
, 2006 The soils of the Seabee Hook area of Cape Hallett in northern Victoria Land, Antarctica, were mapped and characterized. Seabee Hook is a low-lying gravel spit of beach deposits built up by coastal currents carrying basalt material from nearby cliffs ...
Balks, Megan R. +3 more
core +2 more sources