Results 101 to 110 of about 313 (146)

Minerals and trace elements in silcretes of the Sado basin (Alentejo, southern Portugal) and implications for silcrete formation

, 2017
Sauer, Daniela, Kullmann, S., Zarei, Mehdi, Stahr, Karl   +3 more
openaire   +1 more source

Silcretes and Their Relationship to Planation Surfaces in Western Bohemia

Geografie, 1976
openaire   +1 more source

Bacterial involvement in the production of silcretes?

, 1994
Shaw, PA, Harrison, CC
core  

Origin of sub-basaltic silcretes: a detailed study of sub-basaltic silcretes at Morrisons, Victoria compared with sub-basaltic and non sub-basaltic silcretes in eastern and inland Australia

, 1985
Collins, Nigel G.S.
core  

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Origin of Silcretes of Central Australia

Nature, 1966
RECENTLY, Stephens1 has suggested that the widespread silcretes of Central Australia can be explained by a sequence of three events: (1) mobilization of silica by lateritic weathering in the area of the present watershed of eastern and northern Queensland; (2) deposition of the silica after south-western transportation in streams and rivers for ...
exaly   +3 more sources

A re-evaluation of the “silcretes” of the Cobar area, Australia

Geoderma, 1979
Abstract Silcretes and associated deep weathering-profiles have been reported in the Cobar area of New South Wales. Re-examination of the relevant field sites and a detailed laboratory study of rock samples showed that siliceous materials outcropping at these locations are bedrock essentially unaltered since Palaeozoic burial and deformation.
Robert J Wasson
exaly   +2 more sources

The distribution of silcretes in the churches of the London Basin

Proceedings of the Geologists Association, 1998
Churches built on long established Christian sites are often constructed of rocks which closely reflect the local geology. Although the geological succession of the London Basin possesses few acknowledged building stones, sufficient material, supplementary to the almost ubiquitous flint, exists in its churches, for different, rock geographical ...
exaly   +2 more sources

Silcrete is not a monolith: Heat treatment of silcrete and the economy of backed artefact manufacture [PDF]

, 2021
The use of heat treatment of silcrete and the manufacture of backed artefacts during the mid-to-late Holocene in Eastern Australia is believed to have provided considerable benefits in the use of silcrete, and the ability to produce reliable and maintainable composite toolkits.
openaire   +1 more source

Silcrete as a climatic indicator: Discussion

Palaeogeography, Palaeoclimatology, Palaeoecology, 1986
Etude critique de l'article de Summerfield M.A. «Silcrete as a palaeoclimatic indicator: evidence from Southern Africa», paru dans Palaeogeogr. Palaeoclimatol., Palaeoecol., 1983, vol. 43, no 1, pp.
C.R. Twidale, J.T. Hutton
openaire   +1 more source

The durability of silcrete flakes: An experimental analysis on the rate of use–wear formation for fine–grained silcrete flakes

2021
This paper was included in the 10th issue of Excavations, Surveys and Heritage Management in Victoria and was presented at the annual Victorian Archaeology Colloquium (held on-line) between 1 and 4 February 2021.
openaire   +1 more source