Kinetic energy in geological process

Kinetic energy in geological process

Diffusion

Viscosity

Disequilibrium textures

Isotopic decay

Kinetic explain us how and why the reactions depend of temperature. Also explain us the conduct of isotopes in the time to know the old of a rock.

The viscosity is the capacity of a liquid to flow.

Viscosity is proportional to activation energy, and reverse to temperature.

(1/n)=(1/no)e^-Ea/RT

ln(1/n)=ln(1/no)-((Ea/R)(1/T))

Is the decay of any element from their inicial isotopes as the time pass

N=Noe^-λt

lnN=lnNo-λt

Half life

t=(lnNo-lnN)/λ

t=ln(No/N)/λ

N(1/2)=No(1/2)

t=ln(No/(1/2)No)/λ

t=ln2/λ

Is the isotipic concentration which goes from highest to lowest

Diffusion is proporsional to temperature and reverse to activation energy.

D=Doe^-Ea/RT

lnD=lnDo-(Ea/R)(1/T)

There is two types of diffusion

Intracrystalline (depend in the crystal shafts) and intercrystalline (depend in the temperature and in the particle size)

Mineral reactions that are unable to proceed to completion

leave a rock in a state of chemical disequilibrum. Have variety of disequilibrium textures.

- Coronas

- Reaction textures

- Chemical zoning

- Exsolution

First Fick Law

the magnitude of the flow will depend on the surface area of ​​the interface

Velocity of reaction

reactants decrease

products increase

V=K[A]^n[B]^m

Constant of velocity reaction

K=Ae^-(Ea/R)(1/T)

lnK=lnA-(Ea/R)(1/T)

Is proportional to temperature.

Is proportional to K

Boltzmann factor

It indicates as the distribution of energy to change towards more energy with increasing temperature