Evaluating thermal maturity using transmitted light techniques: Color changes in structureless organic matter and palynomorphs

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dc.contributor.authorDrobniak, Agnieszka
dc.contributor.authorHampton, LaBraun
dc.contributor.authorMastalerz, Maria
dc.date.accessioned2022-09-13T16:33:02Z
dc.date.available2022-09-13T16:33:02Z
dc.date.issued2016
dc.description.abstractProgressive color changes were observed in immature to postmature shale samples from various ages (Silurian to Tertiary) and geographic locations. The thermal alteration index, assessed based on the color of structureless organic matter, along with the spore color index determined on palynomorphs, were compared with vitrinite reflectance values obtained from more than 200 samples. While some correspondence occurs, the resolution of the thermal alteration index and the spore color index is not as precise as changes in vitrinite reflectance, as was expected. The 138 photomicrographs of structureless organic matter and palynomorphs included in this paper can serve as a color reference for the various stages of maturity.en
dc.identifier.citationMastalerz, M., Hampton, L., and Drobniak, A., 2016, Evaluating thermal maturity using transmitted light techniques — color changes in structureless organic matter and palynomorphs: Indiana Geological Survey Occasional Paper 73, 41 p., 1 fig.en
dc.identifier.urihttps://hdl.handle.net/2022/28178
dc.language.isoenen
dc.publisherIndiana Geological & Water Surveyen
dc.relation.ispartofseriesOccasional Papers;73
dc.rightsThis work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/ or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.en
dc.rights.urihttps://creativecommons.org/licenses/by-sa/4.0/en
dc.subjectThermal maturityen
dc.subjectLight Techniquesen
dc.subjectPalynomorphsen
dc.titleEvaluating thermal maturity using transmitted light techniques: Color changes in structureless organic matter and palynomorphsen
dc.typeTechnical Reporten

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