Contributions to economic geology, 1919, Part II, Mineral fuels--Oil shale in western Montana, southeastern Idaho, and adjacent parts of Wyoming and Utah

10.3133/b711b ◽  
1920 ◽  
Keyword(s):  
Economic Geology ◽  
Oil Shale ◽  
Western Montana

Economic geology value of oil shale deposits: Ethiopia (Tigray) and Jordan

2018 ◽  
Vol 40 (17) ◽  
pp. 2079-2096 ◽  
Author(s):  
Yohannes Yihdego ◽  
Hilmi S. Salem ◽  
Bediaku G. Kafui ◽  
Zarko Veljkovic
Keyword(s):  
Economic Geology ◽  
Oil Shale

Operation of an advanced 1/2 ton per day oil shale retort

1994 ◽  
Author(s):  
John Stehn ◽  
Scott Carter ◽  
Asmund Vego
Keyword(s):  
Oil Shale

Spectro-mechanical Characterization of Aromaticity and Maturity of Kerogens in Oil Shale at 6 nm Spatial Resolution

2018 ◽  
Author(s):  
Devon Jakob ◽  
Le Wang ◽  
Haomin Wang ◽  
Xiaoji Xu
Keyword(s):  
Spatial Resolution ◽  
Oil Shale ◽  
Infrared Imaging ◽  
Mechanical Characterization ◽  
Optical Diffraction ◽  
Chemical Compositions ◽  
Valuable Insight ◽  
Eagle Ford Shale

<p>In situ measurements of the chemical compositions and mechanical properties of kerogen help understand the formation, transformation, and utilization of organic matter in the oil shale at the nanoscale. However, the optical diffraction limit prevents attainment of nanoscale resolution using conventional spectroscopy and microscopy. Here, we utilize peak force infrared (PFIR) microscopy for multimodal characterization of kerogen in oil shale. The PFIR provides correlative infrared imaging, mechanical mapping, and broadband infrared spectroscopy capability with 6 nm spatial resolution. We observed nanoscale heterogeneity in the chemical composition, aromaticity, and maturity of the kerogens from oil shales from Eagle Ford shale play in Texas. The kerogen aromaticity positively correlates with the local mechanical moduli of the surrounding inorganic matrix, manifesting the Le Chatelier’s principle. In situ spectro-mechanical characterization of oil shale will yield valuable insight for geochemical and geomechanical modeling on the origin and transformation of kerogen in the oil shale.</p>

Lick Creek historic photographic series: a century of change in a ponderosa pine forest in western Montana, US

2018 ◽  
Author(s):  
Sharon M. Hood ◽  
Duncan C. Lutes ◽  
Justin S. Crotteau ◽  
Christopher R. Keyes ◽  
Anna Sala ◽  
...  
Keyword(s):  
Ponderosa Pine ◽  
Pine Forest ◽  
Western Montana ◽  
Ponderosa Pine Forest
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