saprolite


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saprolite

[′sap·rə‚līt]
(geology)
A soft, earthy red or brown, decomposed igneous or metamorphic rock that is rich in clay and formed in place by chemical weathering. Also known as saprolith; sathrolith.
References in periodicals archive ?
In situ saprolite samples were collected from laterite profiles in the Darling Range of Western Australia (Kew and Gilkes 2006).
As a result of ANTAM's drilling activities, total reserves and mineral resources of saprolite nickel ore at Buli increased by 45% to 93.
In recent years, a number of these saprolite locations have been subjected to quarrying for use as road bed material, and their friable and permeable nature means that water and air flow-through is high.
An attempt has been made to resolve the following questions: 1) Why does the green-coloured saprolite possess some sorption properties?
on the northwestern shores of the Caniapiscau reservoir, a weathering front in coarse-grained gneissic granite with associated well-rounded core stones and gravelly saprolite (grus) is exposed (Figure 3a).
Seven of the wells are screened in the water table aquifer above the saprolite and the remaining well penetrates underlying bedrock.
1 million WMT of saprolite ore and 841 thousand WMT of limonite ore to the Coral Bay plant during the first quarter compared to 474 thousand WMT of saprolite ore and 871 thousand WMT of limonite ore in the same period last year.
Afferro Mining declares a substantial rise in indicated saprolite and magnetite resources at its Nkout iron ore project in Cameroon.
The Sardine Hill drill holes found weathered to fresh and unoxidized saprolite, and host bedrock, with characteristic chlorite-ankerite-sericite-tourmaline-epidote alteration.
Positive results from bio-renewable organic acid leaching of both limonite and saprolite ores
In a study examining the relationship between the orientation and spacing of coarse, columnar peds in an acid, texture-contrast soil and jointing in the underlying bedrock, Walsh and Humphreys (2008) reported the presence of large amounts of smectite in the saprolite of an in situ weathered soil in the Pilliga State Forests in north-western New South Wales, Australia.
The strategy at Sanu Tinti is to finish stage 1, mining the soft, but higher-grade saprolite material (currently around 5 g/t) in the lower portion of the pit, before the start of the rainy season makes mining of this material too difficult.