scholarly journals Coal rank (vitrinite reflectance) data for coals from the Pictou Coalfield, Stellarton Basin, Nova Scotia

1999 ◽  
Author(s):  
W Kalkreuth ◽  
J D Hughes ◽  
M Tomica ◽  
R Naylor ◽  
K Gillis
Keyword(s):  
Nova Scotia ◽  
Vitrinite Reflectance ◽  
Coal Rank ◽  
Reflectance Data

scholarly journals Coal rank (vitrinite reflectance) data for Cretaceous/Tertiary coal measures in the Grande Cache and Hinton areas, Alberta

1996 ◽  
Author(s):  
W D Kalkreuth ◽  
W Langenberg ◽  
M E McMechan ◽  
M A Tomica ◽  
W McDougall ◽  
...  
Keyword(s):  
Vitrinite Reflectance ◽  
Coal Rank ◽  
Coal Measures ◽  
Reflectance Data

scholarly journals Geotectonic setting of the Tertiary Uyandina and Indigirka-Zyryanka basins, Republic Sakha (Yakutia), Northeast Russia, using coal rank data

2009 ◽  
Vol 4 ◽  
pp. 85-96
Author(s):  
H.-J. Paech
Keyword(s):  
Vitrinite Reflectance ◽  
Tectonic Deformation ◽  
Rift System ◽  
Coal Rank ◽  
Tectonic Structure ◽  
Northeast Russia ◽  
Basin Subsidence ◽  
Basin Formation ◽  
Reflectance Data ◽  
Extensional Structures

Abstract. Outcrops along the Inach River in the Uyandina basin and those along the Myatis' River in the Indigirka-Zyryanka basin were studied in detail and sampled for coal rank determinations. The Uyandina basin is an intramontane pull-apart basin characterized by extensional structures within the Moma rift system. The coal rank is below 0.3% vitrinite reflectance (Rr), which indicates shallow, immature conditions of basin formation and very low subsidence. The Myatis' River coal-bearing outcrops in the Indigirka-Zyryanka basin reveal compression induced by continent collision. The compressive deformation includes also lowermost Pliocene strata. Due to the position in the Verkhoyansk-Chersky fold belt adjacent to the Kolyma-Omolon microcontinent the Indigirka-Zyryanka basin has much in common with a foredeep, i.e. the asymmetry in thickness and tectonic structure. The vitrinite reflectance data (Rr) which range from 0.25% to more than 5% reinforce the accepted models that describe basin subsidence and geothermal history and the tectonic deformation.

Hydrocarbon Generative Properties and Maturity of Cretaceous and Eocene Sediments in the Middle Kura Depression, Azerbaijan

2021 ◽  
Author(s):  
Shahin Khosrov Akhundov ◽  
Mushfig Farhad Tagiyev ◽  
Arastun Ismail Khuduzade ◽  
Natig Namig Aliyev
Keyword(s):  
Organic Matter ◽  
Brown Coal ◽  
Lower Cretaceous ◽  
Vitrinite Reflectance ◽  
Sedimentary Cover ◽  
Hard Coal ◽  
Marine Origin ◽  
Formation Conditions ◽  
Lesser Caucasus ◽  
Reflectance Data

Abstract Meso-Cenozoic sedimentary cover in the Middle Kura depression located between the Greater and Lesser Caucasus mountain structures contains numerous oil accumulations. According to studies in the Cretaceous and Paleogene strata, sedimentary organic matter is of mixed clastic-marine origin. Moderate amounts of organic matter have been recorded in the Eocene sediments (on average 0.70%), in the Upper and Lower Cretaceous average values made up 0.39% и 0.42%, respectively. Analysis of bitumoid composition suggests that in a number of areas bitumoids have experienced a widespread movement across the sedimentary strata. The results of measurements on isolated samples indicate that the Cretaceous strata have only advanced to the initial hard-coal stage of organic transformation (0.48-0.55%Ro). On vitrinite reflectance data the Eocene deposits in studied areas of the Middle Kura depression have reached initial (brown-coal) stage of catagenetic transformation (±0.48Ro%; est. paleotemperature of 85°C). Nonetheless, analysis of formation conditions of commercial HC accumulations found earlier in the Eocene strata allows considering them the most prospective in the Middle Kura depression.

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