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Rock coatings

Apparently a negative AP with Q < 90° can be found for particular pore geometries [53]. A different type of water repellency is desired to prevent the deterioration of blacktop roads consisting of crushed rock coated with bituminous materials. Here the problem is that water tends to spread into the stone-oil interface, detaching the aggregate from its binder [54]. No entirely satisfactory solution has been found, although various detergent-type additives have been found to help. Much more study of the problem is needed. [Pg.471]

Barnouin-Jha, 0. Murchie, S. (2000) Rock coatings at the Mars Pathfinder landing site. [Pg.557]

Table 8.1 Different types of rock coatings (adapted from Dorn, 1998)... Table 8.1 Different types of rock coatings (adapted from Dorn, 1998)...
Iron film Lithobiontic coatings Nitrate crust Composed primarily of iron oxides or oxyhydroxides Organic remains form the rock coating, for example lichens, moss, fungi, cyanobacteria, algae Potassium and calcium nitrate coatings on rocks, often in caves and rock shelters in limestone areas... [Pg.247]

Mars analog Assuming that varnish is a biogenic rock coating, the occurrence of Mn-rich varnishes on Mars provides evidence of life or former life The use of varnish as a bioindicator of Martian life is untenable until abiotic origins of Mn-enhancement are falsified for Martian conditions... [Pg.254]

Rock coating geography The presence of rock varnish in a plethora of settings that lack repeated oxidation cycles challenges this model This model has not yet explained the geography of rock coatings... [Pg.277]

Borns, D.J., Adams, J.B., Curtiss, B., Farr, B., Palmer, T., Staley, J. Taylor-George, S. (1980) The role of microorganisms in the formation of desert varnish and other rock coatings SEM study. Geological Society of America Abstracts with... [Pg.288]

Curtiss, B., Adams, J.B. Ghiorso, M.S. (1985) Origin, development and chemistry of silica-alumina rock coatings from the semiarid regions of the island of Hawaii. Geochemica et Cosmochimica Acta 49, 49-56. [Pg.288]

Dorn, R.L (2006) Petroglyphs in Petrified Forest National Park Role of rock coatings as agents of sustainability and as indicators of antiquity. Bulletin of Museum... [Pg.289]

Dorn, R.L Meek, N. (1995) Rapid formation of rock varnish and other rock coatings on slag deposits near Fontana. Earth Surface Processes and Landforms 20, 547-560. [Pg.289]

Dragovich, D. (1993) Distribution and chemical composition of microcolonial fungi and rock coatings from arid Australia. Physical Geography 14, 323-341. [Pg.290]

Douglas, G.R. (1987) Manganese-rich rock coatings from Iceland. Earth Surface Processes and Landforms 12, 301-310. [Pg.290]

Palmer, E. (2002) Feasibility and implications of a rock coating catena analysis of a desert hillslope. M.A. Thesis. Department of Geography, Arizona State University, Tempe. [Pg.294]

Perry, R.S., Dodsworth, J., Staley, J.T. Gillespie, A. (2002) Molecular analyses of microbial communities in rock coatings and soils from Death Valley, California. Astrobiology 2, 539. [Pg.294]

Trickling filter system Procedure in which sewage is spread over a bed of rocks coated with aerobic organisms that decompose the organic matter in it. [Pg.1189]

Donovan DT (2011) WeUs Cathedral conservation of figure sculpture 1977-1986. Int J Archit Herit 5(6) 586-612. doi 10.1080/15583051003754112 Dom RI (1998) Rock coatings. Elsevier, Amsterdam. [Pg.40]

See other pages where Rock coatings is mentioned: [Pg.149]    [Pg.1]    [Pg.7]    [Pg.246]    [Pg.249]    [Pg.249]    [Pg.250]    [Pg.260]    [Pg.261]    [Pg.268]    [Pg.269]    [Pg.272]    [Pg.273]    [Pg.273]    [Pg.283]    [Pg.285]    [Pg.285]    [Pg.286]    [Pg.286]    [Pg.286]    [Pg.287]    [Pg.289]    [Pg.444]    [Pg.446]    [Pg.486]    [Pg.85]    [Pg.31]   
See also in sourсe #XX -- [ Pg.246 , Pg.247 , Pg.248 , Pg.250 , Pg.250 , Pg.254 , Pg.260 , Pg.268 , Pg.272 , Pg.273 , Pg.277 , Pg.283 , Pg.285 , Pg.285 , Pg.286 , Pg.392 , Pg.444 , Pg.446 ]



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