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Identification of thermal maturity-relevant organic matter in Shale Working Group Report 2021

April 1, 2022

The Identification of Thermal Maturity-Relevant Organic Matter in Shale Working Group of the ICCP was established in 2008 to provide guidelines for identifying and measuring the reflectance of the population of dispersed organic matter that is relevant to thermal maturity determination. Information products published by the working group include ASTM D7708 Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks (ASTM, 2014) and two interlaboratory studies (ILS) to determine precision statistics for this ASTM test method (Hackley et al., 2015, 2020). Poor reproducibility of solid bitumen and vitrinite reflectance measurements in the second ILS (Hackley et al., 2020) suggested that further work is required to standardize the identification of thermal maturity-relevant dispersed organic matter for reproducible reflectance measurements. Thus, at the 2019 ICCP meeting in The Hague, Netherlands, the working group decided to pursue additional ILS via image-based approaches to improve reproducibility.

Citation Information

Publication Year 2022
Title Identification of thermal maturity-relevant organic matter in Shale Working Group Report 2021
Authors Paul C. Hackley, Javin J. Hatcherian, Jennifer L. Rivera, Margaret M. Sanders, Brett J. Valentine
Publication Type Newsletter
Publication Subtype Newsletter
Series Title ICCP News
Index ID 70230399
Record Source USGS Publications Warehouse
USGS Organization Eastern Energy Resources Science Center; Eastern Geology and Paleoclimate Science Center; Geology, Energy & Minerals Science Center