Weathering history

Fairly rapid indications of weatherabil-ity are therefore obtainable on samples of known materials that through testing experience over a period of time have general correlations established. There is no artificial substitute for precisely predicting outdoor weatherability on materials with no previous weathering history. Weatherome-ters produce conditions to accelerate effects that would be observed in specimens exposed outdoors. 

Aeolian sands are deposited by wind action, either in dunes or in extensive sheets ( cover sand areas ) Wind action is particularly effective in hot and dry regions such as deserts but sand dunes are also common in (sub)humid regions with sparse vegetation, notably in overgrazed areas and along beaches and fluvial braid plains . The (weathering) history of the parent materials in the source area determines whether the sands are rich in quartz and/or carbonates. 

McQueen, K.G., Pillans, B.J., Smith, M.L. 2002. Constraining the weathering history of the Coare region, western NSW. In Preiss, V.P. (ed.), Geosdence 2002 Expanding Horizons, Abstracts of the 16 Australian Geological Convention, Adelaide, 1-5 July 2002, 67, 246. 

From the Devonian to the Quaternary period, the study area experienced a complicated geological and weathering history (Fig. 4). Granodiorite or biotite adamellite granite intmded Devonian tuff... 

Derry L. A. and France-Lanord C. (1996) Neogene Himalayan weathering history and river Sr/ Sr impact on the marine Sr record. Earth Planet. Sci. Lett. 142, 59-74. 

Anand, R.R. (2005) Weathering history, landscape evolution and implications for exploration. In Anand, R.R. de Broekert, P. (Eds) (2005) Regolith Landscape Evolution Across Australia. Bentley, Western Australia Cooperative Research Centre for Landscape Environments and Mineral Exploration, pp. 2 40. 

Delaney ML, Filippelli GM (1994) An apparent contradiction in the role of phosphoras in Cenozoic chemical mass balances for the world ocean. Paleoceanogr 9 513-527 Delcourt HH (1979) Late-Quatemary vegetation history of the eastern Highland Rim and adjacent Cumberland Plateau of Termessee. Ecol Monogr 49 255-280 Derry LA, Frauce-Lauord C (1996) Neogene Himalayan weathering history and river Sr/ Sr Impact on the marine Sr record. Earth Planet Sci Lett 142 59-76... 

Himalayan Uplift, ° Sr/ Sr Record, and Possible Implications for Weathering History... 

The key to any emergency response is the knowledge of what to cover. This assessment is a matter of weather history, natural disaster history, educational practices. 

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