weathering

The effects of weathering can be simulated in the laboratory.

Many companies are having difficulty weathering the present economic storm.

The calcite deposits are derived from the recrystallization of the carbonatite as a result of the weathering, eluviation of the fault, and the thermal contact activity and the metamorphism.

This paper introduces the geological features and the unhomogeneous weathering phenomenon of coral reef limestone of Sudan Port Area,and the bearing capacity of this layer.

Abundant uranyl minerals (especially, uranyl silicates and uranyl phosphates) are found because of intensive weathering of uraninite.

The weathering profiles of WC3 and DBK are of clastic rocks, grain size frequency distribution curves of quartz show single, broad peak, and their modes are approximately 5.1φ and 6φ respectively.

There are some independent minerals of Cd, which are secondary minerals formed during weathering and leaching, such as greenockite, otavite and oxides of Cd in the oxidized zone of the deposit.

An oxidized zinc ore from Inner Mongolia was found to be very difficult to treat due to its features of high oxidation rate,heavy weathering and the intimate association of hemimorphite and limonite.

Photo Gallery: Erosion and Weathering Wind erosion makes these layered sandstone hills swirl in Paria Canyon-Vermilion Cliffs Wilderness Area.

Structure of weathered crust was controlled by lithofacies, paleoclimate, weathering time, paleotopography, tectonic structure, and later stage preservation.