Geology Ree Pattern Slope La Yb Calculator
Actual reference-normalized La/Ybend-member slope indicator using caller independently matched normalization source/edition; not whole REEpattern, slope-per-atomic-number or existing Eu/Ceanomaly.
Description
Normalized La/Yb compares lanthanum and ytterbium relative to declared reference concentrations.
Normalized La/Yb compares lanthanum and ytterbium relative to declared reference concentrations.1
Reference composition determines the normalized ratio. Use this tool to calculate the stated observation or conditional model from supplied measurements.
When to use Geology Ree Pattern Slope La Yb Calculator
Use this tool to calculate the stated observation or conditional model from supplied measurements. Establish the sample and coordinate basis, matching units, calibration source and applicable model assumptions.
How to use Geology Ree Pattern Slope La Yb Calculator and understand its results
- Establish the sample and coordinate basis, matching units, calibration source and applicable model assumptions.
- Enter actualLanthanumConcentration, actualYtterbiumConcentration, callerVerifiedReferenceLanthanum, callerVerifiedReferenceYtterbium, using the field meanings and rules below, then run the tool.
- Read result.observedReferenceNormalizedLaYbSlope. Interpret each field using the units, signs and evidence rules below.
- If input validation fails, correct the reported field and run again. Before applying a successful result, check the stated reference scope, units, assumptions and any retained unknown evidence.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualLanthanumConcentration | Actual lanthanum concentration | number | Required |
| actualYtterbiumConcentration | Actual ytterbium concentration | number | Required |
| callerVerifiedReferenceLanthanum | Caller verified reference lanthanum | number | Required |
| callerVerifiedReferenceYtterbium | Caller verified reference ytterbium | number | Required |
Require nonnegative measured La and positive measured Yb and both reference concentrations. Normalize each element by its own reference and divide normalized La by normalized Yb. No reference composition, logarithmic slope or elemental assay is supplied.
normalizedLaYb=(measuredLa/referenceLa)/(measuredYb/referenceYb) Apply the field units and exact ordering, boundary and evidence rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Structured result containing the calculation or selected reference fields below | object |
| result.observedReferenceNormalizedLaYbSlope | Observed Reference Normalized La Yb Slope; use the units, sign convention and calculation stated above | number |
{
"input": {
"actualLanthanumConcentration": 2,
"actualYtterbiumConcentration": 4,
"callerVerifiedReferenceLanthanum": 1,
"callerVerifiedReferenceYtterbium": 4
},
"output": {
"result": {
"observedReferenceNormalizedLaYbSlope": 2
}
}
}Limitations and assumptions
Reference composition determines the normalized ratio. Results depend on the independently established measurement basis and the exact model assumptions above.
Every listed input requires an explicit value. Unexpected fields, incorrect value types, nonfinite numbers and sparse numeric arrays fail validation; tool-specific bounds and alignment rules apply as described above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful calculation that reports a false comparison or retains unknown evidence.
Alternative or Complementary methods
Use Geology Trace Element Ratio Calculator to examine a related aspect: Trace-element ratios compare matched concentration measurements.
Use Geology Th U Ratio Calculator where its separate inputs and scope apply: A thorium-to-uranium ratio compares concentrations on the same basis.
References
Similar or alternative tools
- Geology Trace Element Ratio Calculator
Trace-element ratios compare matched concentration measurements.
- Geology Th U Ratio Calculator
A thorium-to-uranium ratio compares concentrations on the same basis.