Major element geochemistry of silcrete from a portion of inland Australia

Details Major element geochemistry of silcrete from a portion of inland Australia Major element geochemistry of silcrete from a portion of inland Australia

Aug 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977gecoa..41.1164w&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 41, Issue 8, pp.1164-1167

Other

4

Scientific paper

Silcrete is exceedingly uniform in composition, revealing no consistent variations across a large portion of the Australian interior. Analyses of host quartzose sediments suggest that a small increase in Si content, associated with a reduction in Al and H 2 O, accompanied silcrete formation. Depletion of Fe, Mg, Ca, K and P point to intense leaching in a near-surface environment. Concentration of Ti during silicification is confirmed and attributed to accumulation from within the host sediments. Analyses of porcellanites derived from silicification of kaolinized claystones reflect considerable Si concentration, along with marked depletion of Al and other, more mobile elements. Reducing conditions under a wet climatic regime are postulated during the early phase of silcrete formation. Subsequent climatic change to aridity favoured silcrete development and preservation.

Affiliated with

Also associated with

No associations

Rating

Major element geochemistry of silcrete from a portion of inland Australia does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Major element geochemistry of silcrete from a portion of inland Australia, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Major element geochemistry of silcrete from a portion of inland Australia will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1880499