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.

Thickness

Competent layer thickness in meters.

Viscosity contrast

Ratio of layer viscosity to matrix viscosity (dimensionless).

Estimate the Biot–Ramberg dominant wavelength of a competent viscous layer as 2π times thickness times the cube root of the viscosity contrast divided by six. 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]

Dominant wavelength

Dominant buckle-fold wavelength in meters.

• Apparent dip, thickness, fault, and fold geometry depend on coordinate convention, orientation measurements, map or section geometry, exposure, projection, and assumptions about planar or cylindrical structures. Ambiguous contacts require field or 3D validation.
• 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.

Compare independent measurements and models, retain units and analytical metadata, propagate uncertainty, and validate interpretations against logs, cores, maps, laboratory data, or field observations.

• Seismic Rms Velocity Calculator

  Layer-root-mean-square velocity Vrms^2 = sum(Vi^2 ti) / sum(ti) from per-layer velocities in meters per second and one-way interval travel times in seconds.

• Consolidation Settlement Calculator

  Primary consolidation settlement of a normally consolidated fine-grained layer Sc = H * Cc / (1 + e0) * log10(sigma_f' / sigma_i'). Assumes virgin compression with Cc; for overconsolidated ranges use Cr instead. Thickness in m, stresses in kPa, settlement in m.

• Parasequence Thickness Calculator

  Mean parasequence thickness from the measured thickness of a parasequence set divided by its number of parasequences.