retrieve the geomaterials that has the given range of optical 2v.
Source:R/mindat_geomaterials.R
geomaterials_optical2v_range.Rd
: Queries the geomaterials have the higher optical 2v value than the given lt.
Arguments
- gt
given value of minimum of optical 2v of mineral.Please refer to the details.
- lt
an given value of maximum of optical 2v of mineral.Please refer to the details.
- ...,
Further named parameters.Other optional arguments.
Details
This function releated to the field "optical2v_min" and "optical2v_max" of geomaterials. optical2vcalc:The calculated 2V angle minimum or average of biaxial minerals optical2vcalc2:The calculated 2V angle maximum of biaxial minerals optical2vmeasured:The measured 2V angle minimum or average of biaxial minerals optical2vmeasured2:The measured 2V angle maximum of biaxial minerals