rockjock_mixtures: RockJock synthetic mixtures

Description

A list containing 8 XRPD measurements (Cu K-alpha radiation) of synthetic mixtures that can be used to assess accuracy of quantitative analysis from the fps() and afps() functions. The mixtures contain various amounts of quartz (QUARTZ standard in of the rockjock library), K-feldspar (ORDERED_MICROCLINE), plagioclase (LABRADORITE), kaolinite (KAOLINITE_DRY_BRANCH), dioctahedral smectite (MONTMORILLIONITE_WYO), illite (ILLITE_1M_RM30) and corundum (CORUNDUM).

Usage

rockjock_mixtures

Arguments

Format

A list of 8 components, each comprised of two columns. Column tth specifies the 2theta axis and counts specifies the count intensities

Mix1: Contains: 4 % K-feldspar, 20 % plagioclase, 12 % kaolinite, 36 % dioctahedral smectite, 8 % illite and 20 % corundum.
Mix2: Contains: 4 % quartz, 8 % K-feldspar, 36 % plagioclase, 20 % kaolinite, 12 % illite and 20 % corundum.
Mix3: Contains: 8 % quartz, 12 % K-feldspar, 36 % kaolinite, 4 % dioctahedral smectite, 20 % illite and 20 % corundum.
Mix4: Contains: 12 % quartz, 20 % K-feldspar, 4 % plagioclase, 8 % dioctahedral smectite, 36 % illite and 20 % corundum.
Mix5: Contains: 20 % quartz, 36 % K-feldspar, 8 % plagioclase, 4 % kaolinite, 12 % dioctahedral smectite and 20 % corundum.
Mix6: Contains: 36 % quartz, 12 % plagioclase, 8 % kaolinite, 20 % dioctahedral smectite, 4 % illite and 20 % corundum.
Mix7: Contains: 8 % K-feldspar, 40 % plagioclase, 4 % kaolinite, 12 % dioctahedral smectite, 16 % illite and 20 % corundum.
Mix8: Contains: 8 % quartz, 4 % K-feldspar, 4 % plagioclase, 24 % dioctahedral smectite, 40 % illite and 20 % corundum.

References

https://pubs.er.usgs.gov/publication/ofr200378