(geol.) A red, residual soil containing large amounts of aluminum and ferric hydroxides, formed by the decomposition of many kinds of rocks, and found esp. in well-drained tropical rain forests.
A red residual soil formed by the leaching of silica and by the enrichment with aluminum and iron oxides, especially in humid climates.
A red, porous, claylike soil formed by the leaching of silica-rich components and enrichment of aluminum and iron hydroxides. They are especially common in humid climates. Laterites that are poor in iron oxides and rich in aluminum oxides are called bauxites.
Being composed largely of red clays and laterite, the soil is not generally rich, and calls for the patient cultivation of the Chinese gardener to make it really productive.
Laterite is a ferruginous and argillaceous rock, varying from 30 to 200 ft.
Laterite may be roughly divided into two kinds, high-level and low-level laterites.
The outcrops are largely hidden under laterite.
Geologically, Banka resembles the Malay Peninsula, its formations being mainly granite, Silurian and Devonian slate, frequently covered with sandstone, laterite (red ironstone clay) of small fertility, and alluvium.