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Thursday, January 04, 2018

Transgressive-regressive cycles in the metalliferous, oil shale-bearing Heath Formation (Upper Mississippian), central Montana

Outside Publication: Stratigraphy
The Upper Mississippian Heath Formation, which accumulated in the Big Snowy Trough of central Montana, has been known for three decades to contain mudrocks highly enriched in Zn, V, Mo, Ni and other metals, and source rocks for oil. The unit has more recently been...

Thursday, January 04, 2018

Nanoscale geochemical and geomechanical characterization of organic matter in shale

Outside Publication: Nature Communications
Solid organic matter (OM) plays an essential role in the generation, migration, storage, and production of hydrocarbons from economically important shale rock formations. Electron microscopy images have documented spatial heterogeneity in the porosity of OM at nanoscale...

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...


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Page Last Modified: Wednesday, December 03, 2014