Results 41 to 50 of about 6,291 (153)
Constructional Volcanic Edifices on Mercury: Candidates and Hypotheses of Formation [PDF]
Mercury, a planet with a predominantly volcanic crust, has perplexingly few, if any, constructional volcanic edifices, despite their common occurrence on other solar system bodies with volcanic histories.
Balme, Matthew R. +3 more
core +3 more sources
The origin, evolution and life cycle of rock art shelters in the Kimberley Basin of NW Australia
Sandstone rock shelters hosting abundant rock art in northwestern Australia evolve by undermining through recession of a weak layer, leading to progressive enlargement by bedding slab falls from the ceiling, creating new surfaces for rock paintings in the process. Eventually, continued undermining due to ongoing failure of the lower weak layer leads to
Andrew Gleadow +7 more
wiley +1 more source
Martian geomorphology and its relation to subsurface volatiles [PDF]
Martian volatile inventory, planetary climatic and atmospheric evolution, and the interpretation of various remote sensing data were discussed.edited by Stephen M. Clifford, Lisa A. Rossbacher, and James R.
core
Abstract Fractures in sedimentary rocks preserved within Gale crater record the deformational and burial history of the sediment infill. Fracture geometries and morphology can be used to time other geologic events, such as: compaction, diagenesis, fluid migration, geochemistry, and broader tectonic stresses within a basin.
Steven G. Banham +8 more
wiley +1 more source
Erosional development of bedrock spur and gully topography in the Valles Marineris, Mars [PDF]
Gully networks separated by resistant bedrock spurs are a common erosional feature along the escarpments that border the Valles Marineris. The resistant spur topography is best developed where the base of the slope is truncated by linear scarps ...
Patton, Peter C.
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Methane release on Early Mars by atmospheric collapse and atmospheric reinflation [PDF]
A candidate explanation for Early Mars rivers is atmospheric warming due to surface release of H$_2$ or CH$_4$ gas. However, it remains unknown how much gas could be released in a single event.
Gao, Peter +4 more
core +1 more source
Active microwave remote sensing of earth/land, chapter 2 [PDF]
Geoscience applications of active microwave remote sensing systems are examined. Major application areas for the system include: (1) exploration of petroleum, mineral, and ground water resources, (2) mapping surface and structural features, (3) terrain ...
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Rapid methods of landslide hazard mapping : Fiji case study [PDF]
A landslide hazard probability map can help planners (1) prepare for, and/or mitigate against, the effects of landsliding on communities and infrastructure, and (2) avoid or minimise the risks associated with new developments.
Bowker, M.R. +10 more
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Soil surveys: A window to the subsurface [PDF]
Soils and underlying parent materials form a continuous system we must understand and manage in total. Numerous concerns (e.g., water quality, on-site waste disposal, landfill placement, and nutrient or pesticide movement) require an integrated knowledge
LaGarry, H. E. +2 more
core +2 more sources
Lunar Observer Laser Altimeter observations for lunar base site selection [PDF]
One of the critical datasets for optimal selection of future lunar landing sites is local- to regional-scale topography. Lunar base site selection will require such data for both engineering and scientific operations purposes.
Bufton, Jack L., Garvin, James B.
core +1 more source

