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Monday, March 27, 2017

Organic petrology of peak oil maturity Triassic Yanchang Formation lacustrine mudrocks, Ordos Basin, China

Outside Publication: Society of Exploration Geophysicists
An organic petrology evaluation and a determination of solid bitumen reflectance BRwere completed for organic-rich Triassic Yanchang Formation mudrocks (n=15n) from the Ordos Basin, north-central China, as part of a larger investigation of “shale gas” resources. These data were integrated with information from...

Wednesday, January 18, 2017

Notes on the origin of copromacrinite based on nitrogen functionalities and δ13C and δ15N determined on samples from the Peach Orchard coal bed, southern Magoffin County, Kentucky

Outside Publication: International Journal of Coal Geology
This paper represents the first attempt to show, by means other than just petrographic ones, that one type of macrinite, herein designated copromacrinite, may result from macrofauna feces. For that purpose a combination of coal petrography, X-ray photoelectron spectroscopy, and...

Wednesday, July 20, 2016

Application of organic petrography in North American shale petroleum systems: a review

Outside Publication: International Journal of Coal Geology
Organic petrography via incident light microscopy has broad application to shale petroleum systems, including delineation of thermal maturity windows and determination of organo-facies. Incident light microscopy allows practitioners the ability to identify various types of organic components and demonstrates that solid bitumen is the...

Wednesday, April 20, 2016

Organic petrology and geochemistry of Eocene Suzak bituminous marl, north-central Afghanistan: Depositional environment and source rock potential

Outside Publication: Marine and Petroleum Geology
Organic geochemistry and petrology of Eocene Suzak bituminous marl outcrop samples from Madr village in north-central Afghanistan were characterized via an integrated analytical approach to evaluate depositional environment and source rock potential. Multiple proxies suggest the organic-rich...

Wednesday, July 15, 2015

Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena in making steel electrodes, anodes and cathode blocks

Outside Publication: International Journal of Coal Geology
This paper describes the evaluation of petrographic textures representing the structural organization of the organic matter derived from coal and petroleum and their interaction phenomena in the making of steel electrodes, anodes and cathode blocks. This work represents the results of...

Monday, December 29, 2014

Thermal maturity of Tasmanites microfossils from confocal laser scanning fluorescence microscopy

Outside Publication: Fuel
We report here, for the first time, spectral properties of Tasmanites microfossils determined by confocal laser scanning fluorescence microscopy (CLSM, using Ar 458 nm excitation). The Tasmanites occur in a well-characterized natural maturation sequence (Ro 0.48–0.74%) of Devonian shale (n = 3 samples) from the Appalachian Basin...

 


Friday, August 29, 2014

Standardization of reflectance measurements in dispersed organic matter: Results of an exercise to improve interlaboratory agreement

Outside Publication: Marine and Petroleum Geology
Vitrinite reflectance generally is considered the most robust thermal maturity parameter available for application to hydrocarbon exploration and petroleum system evaluation. However, until 2011 there was no standardized methodology available to provide guidelines for vitrinite reflectance measurements in shale...


Tuesday, August 05, 2014

Reprint of "Organic petrology of the Aptian-age section in the downdip Mississippi Interior Salt Basin, Mississippi, USA: Observations and preliminary implications for thermal maturation history"

Outside Publication: International Journal of Coal Geology
This study identifies a thermal maturity anomaly within the downdip Mississippi Interior Salt Basin (MISB) of southern Mississippi, USA, through examination of bitumen reflectance data from Aptian-age strata (Sligo Formation, Pine Island Shale, James Limestone, and Rodessa Formation)...


Thursday, July 31, 2014

Petrographic maturity parameters of a Devonian shale maturation series, Appalachian Basin, USA. ICCP Thermal Indices Working Group interlaboratory exercise

Outside Publication: International Journal of Coal Geology
This paper presents results of an interlaboratory exercise on organic matter optical maturity parameters using a natural maturation series comprised by three Devonian shale samples (Huron Member, Ohio Shale) from the Appalachian Basin, USA. This work was conducted by the Thermal Indices Working Group of the International Committee for Coal and Organic Petrology (ICCP) Commission II (Geological Applications of Organic Petrology).


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Page Last Modified: Wednesday, December 03, 2014