Method of analysis and precision of x-ray diffraction data from Ohio Shale

Sample preparation and methods of calculation used by the Division of Ohio Geological Survey in its mineralogic and physical characterization of the Upper Devonian black shales are described. Methods of sample mounting, used in conjunction with a Philips automatic sample changer (ASC), allow analysis of a large number of samples by x-ray diffractometry. Because of the time saved wth an ASC, each sample can be scanned twice to increase the precision of the results. The reproducibility of the x-ray data, expressed as relative deviation, ranges from about +-2 to +-10% in samples for which the percent total integrated intensity (%TII) is above 6%.

Data and Resources

Field Value
Citation "\"Carlton, R.W. (1978). Method of analysis and precision of x-ray diffraction data from Ohio Shale.\""
Is NETL associated "\"No\""
Organization "\"Ohio Dept. of Natural Resources\""
Publication Date "\"10/01/1978\""
Groups
  • AmeriGEOSS
  • Global Provider
Tags
  • amerigeo
  • amerigeoss
  • black-shale
  • ckan
  • edx
  • energy
  • energy-data-exchange
  • geo
  • geoss
  • global
  • minerological
  • physical-characteristics
  • upper-devonia
  • x-ray-diffraction
isopen True
license_id cc-by
license_title Creative Commons Attribution
license_url http://www.opendefinition.org/licenses/cc-by
metadata_created 2025-11-25T21:29:27.622367
metadata_modified 2025-11-25T21:29:27.622371
notes Sample preparation and methods of calculation used by the Division of Ohio Geological Survey in its mineralogic and physical characterization of the Upper Devonian black shales are described. Methods of sample mounting, used in conjunction with a Philips automatic sample changer (ASC), allow analysis of a large number of samples by x-ray diffractometry. Because of the time saved wth an ASC, each sample can be scanned twice to increase the precision of the results. The reproducibility of the x-ray data, expressed as relative deviation, ranges from about +-2 to +-10% in samples for which the percent total integrated intensity (%TII) is above 6%.
num_resources 1
num_tags 14
title Method of analysis and precision of x-ray diffraction data from Ohio Shale