EVSC 2800 Study Guide - Midterm Guide: Iron Oxide, Clastic Rock, Aluminium Oxide
12 May 2016
School
Department
Course
Professor
Document Summary
The overall weathering reaction can be simplified to granite weathering to form soil in the presence of water and carbon dioxide. The most common natural acid is carbonic acid that forms when carbon dioxide gas in the atmosphere dissolves in rainwater. Solid products of weathering: clay minerals very insoluble (very stable) Dissolved products of weathering: bicarbonate, cations, an d dissolved silica: the overall weathering process can be simplified to feldspar reacting to form a clay, primary minerals form by crystallization of a. Cooling magma: secondary minjerals form at or near the surface of. Clay minerals are two-dimensional sheet silicates made up of repeating layers of silica tetrahedral and alumina octahedral. Clay is both a size of clastic particle and type of secondary sheet silicate. Mafic silicate minerals are very unstable in the weathering environment. Clastic particles are physically transported rock fragments produced by weathering of pre-existing rocks.
