Chemical weathering in granitic environments

摘要: Abstract Factors controlling chemical weathering in granitic environments are deduced using an extensive database from the literature. Based on a transition state theory model, we evaluated effects of runoff, temperature and pH. The dependence between is complicated by other factors such as presence/depth soil cover. Soil cover favors when it thin rich weatherable minerals. In contrast, reduces thick poor primary Processes that increase contact time surface water–rock interactions physical denudation, rates environments. effect can be quantified assuming apparent activation energy value 48.7 kJ/mol to describe silica crystalline environment under high runoff conditions.