Dense Rock Equivalent Density Calculator
Mass-conserving dense-rock-equivalent volume from caller measured bulk and dense-rock densities; void/compaction assumptions external.
Description
Dense Rock Equivalent Density Calculator: return dense rock equivalent volume m3.
Dense-rock-equivalent volume compares deposit mass with a reference dense-rock density. A porous bulk deposit can have a different volume for the same mass.
This tool returns dense rock equivalent volume m3. Use the stated units and model convention when interpreting these fields.
When to use this tool
Use this tool when the supplied inputs match the specific operation described above and you need a repeatable result under its stated convention.
- Check the supported input and output contract against an existing calculation or observation.
- Use the complete example to confirm units, selector spelling and result interpretation.
How to use the tool and how it works
- Enter every field in the input table using the stated units and the exact supported selector spelling where applicable.
- Run the tool. Correct input errors before interpreting an output.
- Read the result fields below; use accompanying flags and the stated sign, boundary or model convention when interpreting a number.
Multiply tephraVolumeM3 by tephraBulkDensityKgM3 and divide by denseRockDensityKgM3.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| tephraVolumeM3 | Tephra volume m3. Cubic meters. | Finite number; zero or greater |
| tephraBulkDensityKgM3 | Tephra bulk density kg m3. Cubic meters. | Finite number; greater than zero |
| denseRockDensityKgM3 | Dense rock density kg m3. Cubic meters. | Finite number; greater than zero |
| Output field | Interpretation |
|---|---|
| result | Object containing the following named result fields. |
| result.denseRockEquivalentVolumeM3 | Dense rock equivalent volume m3; use the stated units and sign convention. |
{
"input": {
"tephraVolumeM3": 100,
"tephraBulkDensityKgM3": 500,
"denseRockDensityKgM3": 2500
},
"output": {
"result": {
"denseRockEquivalentVolumeM3": 20
}
}
}Limitations and assumptions
- The calculation assumes compatible representative densities and does not infer compaction, erosion or a mapped deposit volume.
- Every declared field is required and unexpected fields are rejected. Numeric inputs must be finite; input errors are distinct from a valid false result or an explicitly qualified output.
- Extremely large inputs and nonfinite or excessively large outputs are rejected. List positions reported by the tool use zero-based indices unless stated otherwise.
Alternative or Complementary methods
Check the underlying observations, units and conventions independently before using the result in a larger workflow. The tools listed below address nearby tasks; compare their inputs and scope before substituting one for this operation.
References
Similar or alternative tools
- hyperconcentrated flow density checker
Mixture density can reveal sediment volume concentration when only water and denser grains are present.
- pumice density floating checker
Pumice can gain density when water enters connected pores.