Standardization of solid bitumen reflectance to vitrinite in some paleozoic sequences of Canada
- Univ. du Quebec (Canada)
The reflectance (R[sub o]) of solid bitumen in Ordovician to Devonian sequences in the Quebec Appalachians and in the Mackenzie are of northern Canada is standardized to the R[sub o] of vitrinite. The migrabitumen, having autochthonous characteristics, is the best solid bitumen type to evaluate the thermal maturation from its R[sub o]. This migrabitumen is generally found as irregular high-reflecting areas, forming part of low-reflecting organic matter frameworks, called protobitumen, and appearing as amorphous bodies in transmitted light. The R[sub o] difference between migrabitumen and protobitumen disappears with increasing maturation. Because vitrinite is missing in pre-Devonian sequences, the R[sub o] of solid bitumens is standardized through the R[sub o] of zooclasts. The R[sub o] of migrabitumen increases similarly to those of zooclasts and vitrinite with maturation, but no universal calibration between the R[sub o] of migrabitumen and vitrinite can be suggested. Scales of calibration are specific for different lithologies and basins. The R[sub o] of zooclasts does not show these limitations. Scales are independent of lithological variations and of the basin origin.
- OSTI ID:
- 6294001
- Journal Information:
- Energy Sources; (United States), Vol. 15:2; ISSN 0090-8312
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BITUMENS
REFLECTIVITY
CALIBRATION
CANADA
COMPARATIVE EVALUATIONS
DIAGENESIS
LITHOLOGY
MATURATION
SEDIMENTARY BASINS
STRATIGRAPHY
VITRINITE
DEVELOPED COUNTRIES
EVALUATION
GEOLOGIC STRUCTURES
GEOLOGY
MACERALS
NORTH AMERICA
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLOGY
PHYSICAL PROPERTIES
SURFACE PROPERTIES
TAR
040500* - Oil Shales & Tar Sands- Properties & Composition