Geology Illite Crystallinity Kubler Index Calculator
Observed illite001FWHM2theta Gaussian instrument correction; same-standard preparation required, no metamorphic grade or Gaussian assumption inferred. Caller independently establishes matching units, evidence, method edition and applicability; output is not compliance, diagnosis, work-safety approval, geological identity or validated hazard prediction.
Description
A Kübler-style crystallinity measurement uses the width of an illite diffraction peak under a matched laboratory protocol.
A Kübler-style crystallinity measurement uses the width of an illite diffraction peak under a matched laboratory protocol.1
Subtracting instrumental broadening in quadrature assumes the Gaussian-width model used by the calculation. Use this tool to calculate illite crystallinity kubler index from the supplied measurements and assumptions.
When to use Geology Illite Crystallinity Kubler Index Calculator
Use this tool to calculate illite crystallinity kubler index from the supplied measurements and assumptions. Establish the measurement units, sampled interval, calibration or model edition and geological assumptions before entering data.
How to use Geology Illite Crystallinity Kubler Index Calculator and understand its results
- Establish the measurement units, sampled interval, calibration or model edition and geological assumptions before entering data.
- Enter observedIllitePeakFwhmDegrees, independentInstrumentFwhmDegrees, using the field meanings and rules below, then run the tool.
- Read gaussianCorrectedKublerDegrees. Interpret the fields using their units, signs and evidence conventions below.
- If input validation fails, correct the reported field and run again. Before applying the result, check reference scope, model assumptions and any missing evidence or placeholder values.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedIllitePeakFwhmDegrees | Observed illite peak fwhm degrees | number | Required |
| independentInstrumentFwhmDegrees | Independent instrument fwhm degrees | number | Required |
Require nonnegative measured and instrumental FWHM in degrees, with instrument width no greater than measured width. Return the square root of the difference of their squares. Equal widths yield zero; the helper does not choose a diffraction peak or establish the laboratory crystallinity scale.
correctedWidthDegrees=√(observedFwhm²−instrumentFwhm²) Use the exact units, boundary rules, ordering and missing-evidence conventions above.
| Output field | Meaning | Value type |
|---|---|---|
| gaussianCorrectedKublerDegrees | Gaussian Corrected Kubler Degrees; follow the units, sign, ordering and evidence convention stated above | number |
{
"input": {
"observedIllitePeakFwhmDegrees": 0.5,
"independentInstrumentFwhmDegrees": 0.3
},
"output": {
"gaussianCorrectedKublerDegrees": 0.4
}
}Limitations and assumptions
Subtracting instrumental broadening in quadrature assumes the Gaussian-width model used by the calculation. Interpretation depends on the units, sampling scope and exact model described above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse evidence arrays fail validation; the specific bounds and alignment requirements are stated above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful result reporting false, no matches or missing evidence.
Alternative or Complementary methods
Use Geology Vitrinite Reflectance Ro Calculator for this related task: Vitrinite reflectance compares measured optical response with a laboratory calibration.
Use Geology Chlorite Geothermometer Calculator when its separate inputs and assumptions fit the question: Chlorite thermometry uses a specified compositional calibration with its own applicability limits.
References
Similar or alternative tools
- Geology Vitrinite Reflectance Ro Calculator
Vitrinite reflectance compares measured optical response with a laboratory calibration.
- Geology Chlorite Geothermometer Calculator
Chlorite thermometry uses a specified compositional calibration with its own applicability limits.