Kinetics of chemical weathering: Field research, laboratory experiment and theoretical analysis of rhyolite weathering

Biota and Chemical Weathering

The Earth has an average surface temperature of about 15°C, which is, in terms of planetary conditions suitable for life, the equivalent of winning the cosmic lottery. Yet, without an atmosphere filled with biological waste gases capable of retaining heat (O2, N2O, CH4, CO2), the average temperature of the planet would be about −18°C (Smil 2002), making the present diversity and abundance of li...

comparative analysis of the use of hedges & emphatics in english and persian academic research articles of sociology & psychology

چکیده ندارد.

Weathering : Laboratory Analyses and in - Situ Instrumentation

Weathering Damage Analysis and Monitoring

Several operative limitations are involved in the quantitative evaluation of damage processes. To plan an intervention, the assessment of the state of conservation appears incomplete without a realistic estimation. Stone and brick and above all sculptured surfaces and paintings need characterization, quantification, interpretation and rating of the weathering. In this field the use of non destr...

The effect of rock composition on cyanobacterial weathering of crystalline basalt and rhyolite.

The weathering of volcanic rocks contributes significantly to the global silicate weathering budget, effecting carbon dioxide drawdown and long-term climate control. The rate of chemical weathering is influenced by the composition of the rock. Rock-dwelling micro-organisms are known to play a role in changing the rate of weathering reactions; however, the influence of rock composition on bio-we...