Try Paul Cluver Ferricrete
Riesling 2013, Elgin, South Africa (PS12.
Bourman RP (1993a) Modes of ferricrete
genesis evidence from southeastern Australia.
In addition to the planned RC drill programs mentioned above, an aircore drill program of approximately 3,600 metres will be used to further define gold geochemistry targets over an area of 1km2 between the Kouglaga and Konkera North Prospects where deep ferricrete
horizons have limited previous conventional auger and soil geochemistry programs.
Half of the intercepts in this program come from surface dispersion in the ferricrete
but the other intersections come from primary quartz veins and altered host rocks.
10 m depth travelled, masking the distinctive gamma-ray emissions of both ferricrete
gravels and non-ferruginous clayey B horizons (Verboom and Pate 2003).
The area is mined by local miners along streams and on higher ground under a ferricrete
bowl in the south half of the prospect area.
These have been used in different research applications and have been successful in obtaining soil-root samples from a range of soil types, including ferricrete
The "Banket 1" soil anomaly is co-incident with: outcrops of quartz pebble conglomerate; an iron rich ferricrete
capped ridge - topographic high; and sub-parallels a distinctive airborne resistivity contact feature.
Bourman RP (1993) Modes of ferricrete
genesis: evidence from southeastern Australia.
Forty samples were collected from peat stockpiles on the development sites to investigate the mineralogy of peat and ferricrete
from the excavation sites to be examined.
Neo-formation of ferro-manganiferous nodules as 'buckshot' and weathering of ferricretes
to leave residual, iron-rich gravels have resulted in gravelly phases of texture-contrast soils in many of the wetter areas of south-eastern Australia.
Sites occur in rock-shelters in the Allikulli hills; on hill slopes; in open-air contexts in low-to-medium-energy episodic sheet wash deposits; and erode out of ferricretes
and ferricritized gravels (Pappu 1999: 132).