Research Article| July 01, 1983 Influence of time on metamorphism of sedimentary organic matter in liquid-dominated geothermal systems, western North America Charles E. Barker Charles E. Barker 1U.S. Geological Survey, Box 25046, Denver Federal Center, Denver, Colorado 80225 Search for other works by this author on: GSW Google Scholar Author and Article Information Charles E. Barker 1U.S. Geological Survey, Box 25046, Denver Federal Center, Denver, Colorado 80225 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1983) 11 (7): 384–388. https://doi.org/10.1130/0091-7613(1983)11<384:IOTOMO>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Charles E. Barker; Influence of time on metamorphism of sedimentary organic matter in liquid-dominated geothermal systems, western North America. Geology 1983;; 11 (7): 384–388. doi: https://doi.org/10.1130/0091-7613(1983)11<384:IOTOMO>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Temperature (T in °C) and mean vitrinite reflectance (Rm in %) of sedimentary organic matter samples from six liquid-dominated geothermal systems plot about a line approximated by a regression equation of the form Rm = 0.435 exp 0.00683T. The reflectance data from these systems are strongly temperature-dependent, with a coefficient of determination (r2) of 0.8. Geologic evidence indicates that reaction duration ranges from 103 or 104 to 106 yr in these systems that appear to have near-maximum temperatures. The uncertainty in vitrinite reflectance and temperature determinations must account for a large part of the remaining variability not explained by the regression equation; therefore, the strong temperature dependence of Rm indicates that after about 104 yr, reaction duration has little or no influence on metamorphism of organic matter in liquid-dominated geothermal systems. These data indicate that vitrinite reflectance can be used to determine the maximum temperature reached in hot sedimentary basins of moderate longevity. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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Charles E. Barker (1983) studied this question.