Lava Viscosity Calculator
Arrhenius melt viscosity eta = eta0 * exp(Ea / (R T)) with Ea in J/mol, eta0 in pascal seconds and T in kelvin.
Description
Arrhenius melt viscosity eta = eta0 * exp(Ea / (R T)) with Ea in J/mol, eta0 in pascal seconds and T in kelvin.
Lava Viscosity Calculator: Arrhenius melt viscosity eta = eta0 * exp(Ea / (R T)) with Ea in J/mol, eta0 in pascal seconds and T in kelvin.
When to use Lava Viscosity
Use this geological calculation for a transparent first-pass interpretation of measured rock, soil, fluid, well, stratigraphic, isotopic, geophysical, or seismic data under an explicitly selected model.
- Activation energy
- Activation energy for viscous flow in J/mol.
- eta0
- Pre-exponential viscosity factor eta0 in pascal seconds.
- Temperature
- Absolute temperature in kelvin.
How Lava Viscosity works
Arrhenius melt viscosity eta = eta0 * exp(Ea / (R T)) with Ea in J/mol, eta0 in pascal seconds and T in kelvin. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1
- Viscosity
- Dynamic viscosity in pascal seconds.
Limitations and assumptions
- Classification diagrams and geochemical ratios require appropriate normalization, oxidation-state treatment, volatile basis, analytical quality, alteration screening, mineral or whole-rock context, and a composition within the method's calibration domain.
- Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.
Alternative or Complementary approaches
Compare independent measurements and models, retain units and analytical metadata, propagate uncertainty, and validate interpretations against logs, cores, maps, laboratory data, or field observations.
References
-
Igneous petrology — Wikipedia contributors
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