Tectonic Control of CO2 Removal – The
Uplift Weathering Hypothesis
q The uplifting weathering hypothesis
asserts that the global mean rate of
chemical weathering is heavily affected
by the availability of fresh rock and
mineral surfaces that the weathering
process can attack.
q This hypothesis suggests that tectonic
uplifting enhances the exposure of
freshly fragmented rock which is an
important factor in the intensity of
chemical weathering.
q This hypothesis looks at chemical
weathering as the active driver of
climate change, rather than as a negative
feedback that moderates climate
changes.