Results 91 to 100 of about 241,189 (213)

Using Simulated Micrometeoroid Impacts to Understand the Progressive Space Weathering of the Surface of Mercury [PDF]

open access: yes
The surfaces of airless bodies such as Mercury are continually modified by space weathering, which is driven by micrometeoroid impacts and solar wind irradiation.
Loeffler, M. J.   +4 more
core   +1 more source

REE distribution and enrichment of drainage point sediments from Makran and Lasbela, Pakistan

open access: yesKuwait Journal of Science
Rare Earth Elements (REEs) are mobile during weathering and their distribution is susceptible to both natural and anthropogenic influences. Four major drainage points in the Makran and Lasbela areas were selected for sampling to examine their REE ...
Waseem Khan   +3 more
doaj   +1 more source

Chemical frost weathering of olivine: Experimental study and implications [PDF]

open access: yes
New experimental results are reported on the frost weathering of olivine. After first weathering, a decrease in Fe sup 2(+)M(2) absorption bands were noted. This decrease is related to the protonation of O(+) in the mineral.
Harris, S. L., Huguenin, R. L.
core   +1 more source

Ghana airborne geophysics project in the Volta and Keta Basin : BGS final report [PDF]

open access: yes, 2009
This report describes the work undertaken by BGS between November 2006 and March 2009 in collaboration with Fugro Airborne Surveys Pty Ltd on an airborne geophysical survey and ground reconnaissance mapping of the Volta River and Keta Basins, Ghana ...
Carney, J.N.   +3 more
core  

The effect of microorganisms on processes of weathering primary minerals [PDF]

open access: yes
Microflora and microorganism effects on weathering, decomposition, and secondary synthesis of primary ...
Glazovskaya, M. A.
core   +1 more source

Trace elements in Antarctic meteorites: Weathering and genetic information [PDF]

open access: yes
Antarctic meteorite discoveries have created great scientific interest due to the large number of specimens recovered (approximately 7000) and because included are representatives of hitherto rare or unknown types.
Lipschutz, M. E.
core   +1 more source

Martian surface weathering studies [PDF]

open access: yes
The nature of the Martian surface was characterized by means of its reflectance properties. The Mariner 9 photography was used to establish terrain units which were crossed by the Mariner 6 and 7 paths. The IR reflectance measured by the IR spectrometers
Calvin, M.
core   +1 more source

Degradation of polypropylene in naturally and artificially weathered plastic matrix composites

open access: yesMaderas: Ciencia y TecnologĂ­a, 2014
Effects of accelerated and natural weathering on the molecular weight distribution (MWD) and crystallinity of polypropylene (PP) in wood plastic composites (WPC) were investigated.
James S. Fabiyi, Armando G. McDonald
doaj  

Weathering product-harm crises. [PDF]

open access: yes
Product-harm crises can seriously imperil a brand's performance. Consumers tend to weigh negative publicity heavily in product judgments, customer preferences may shift towards competing products during the recall period, and competitors often increase ...
Cleeren, Kathleen   +2 more
core  

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