Definitions for "Silcrete"
Fine grained orthoquartzite formed by cementation of shale or siltstone with silica.
Silcrete is an indurated soil duricrust formed when silica is dissolved and resolidifies as a cement. It is a hard and resistant material, and though different in origin and nature, appears similar to quartzite. It is common in the arid regions of Australia, often forming the resistant cap rock on features like breakaways.
Keywords:  silicified, sediment
A silicified sediment.
Deposit of the weathering zone, especially in sub-tropical environments, which may ultimately develop into a hardened mass.