Zobrazeno 1 - 10
of 18
pro vyhledávání: '"DAVID F. BENSLEY"'
Publikováno v:
International Journal of Coal Geology. 38:181-202
Torbanite and cannel coal are considered to be coals because of their low mineral content and overall physical morphology. However, the texture and composition of the organic matter in torbanite and cannel coal are similar to the kerogen occurring in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8421496120c112a7070b2536c49f7c72
https://doi.org/10.1016/s0166-5162(98)00013-5
https://doi.org/10.1016/s0166-5162(98)00013-5
Publikováno v:
Scopus-Elsevier
Immature Type II kerogen (HI = 660 mg/g) from the Lower Toarcian of the Paris Basin was separated into an alginite concentrate (HI = 952 mg/g) and an amorphous organic matter (AOM) concentrate (HI = 573 mg/g) by density centrifugation. The flash pyro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58f0d99e3d238064ad956ba44f709d66
https://doi.org/10.1021/ef960191k
https://doi.org/10.1021/ef960191k
Publikováno v:
Organic Geochemistry. 24:737-750
The two principal organic constituents— Botryococcus -related alginite and organic groundmass—were isolated by density separation from two torbanite samples (from the Stellarton Formation, Nova Scotia, Canada and the King Cannel, Utah, U.S.A.). T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce47c875721092530b8f30bf7e221cac
https://doi.org/10.1016/0146-6380(96)00064-2
https://doi.org/10.1016/0146-6380(96)00064-2
Autor:
John C. Crelling, David F. Bensley
Publikováno v:
Fuel. 73:1306-1316
Research has been directed towards the characterization of ultra-fine coal. Equipment and procedures have been developed which permit full reflectance characterization on vitrinite particles as small as 1.5 μm diameter using rotational polarization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::055fb6a827f4235429d4f2f3fd25b3c1
https://doi.org/10.1016/0016-2361(94)90306-9
https://doi.org/10.1016/0016-2361(94)90306-9
Autor:
Michael A. Kruge, Alessandro Montanari, David F. Bensley, B. Artur Stankiewicz, John C. Crelling
Publikováno v:
Geochimica et Cosmochimica Acta. 58:1393-1397
Organic matter separated from calcareous sandstone from the upper portion of a deep-water tsunami deposit at Arroyo el Mimbral, Taumalipas, Mexico, which marks the biostratigraphically defined Cretaceous-Tertiary boundary, consists primarily of fossi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bf807cef6b5ad74985c8dcae976526e
https://doi.org/10.1016/0016-7037(94)90394-8
https://doi.org/10.1016/0016-7037(94)90394-8
Publikováno v:
Organic Geochemistry. 20:187-196
Analysis and interpretation of dispersed vitrinite reflectance data in regions of high thermal maturity (> 2% vitrinite reflectance) have been equivocal partly because of an increase in width and complexity of reflectance histograms with increasing m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbd7995fb7119db06637052bbe792a19
https://doi.org/10.1016/0146-6380(93)90037-c
https://doi.org/10.1016/0146-6380(93)90037-c
Autor:
David F. Bensley, John C. Crelling
Publikováno v:
Organic Geochemistry. 18:365-372
Low intensity spectral analysis (LISA) represents an extension of fluorescence analysis that enables the study of all maceral groups. This is made possible by replacing the standard double grating monochromator and photomultiplier assembly, used in c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19e9bea771129ee5e4bfae79f22c7eea
https://doi.org/10.1016/0146-6380(92)90077-b
https://doi.org/10.1016/0146-6380(92)90077-b
Autor:
R. Jay Akes, Michael A. Kruge, John F. Hubert, Paul E. Meriney, John C. Crelling, David F. Bensley
Publikováno v:
Organic Geochemistry. 16:689-701
Synrift terrestrial strata of the Lower Jurassic East Berlin Formation (Hanford basin, Connecticut, U.S.A.) record cyclical expansion and contraction of major lakes, six of which were deep enough to develop anoxic bottom waters. We have studied one r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cac296e575b256d227d6052c8003096e
https://doi.org/10.1016/0146-6380(90)90110-l
https://doi.org/10.1016/0146-6380(90)90110-l
Autor:
Michael A. Kruge, David F. Bensley
Publikováno v:
ACS Symposium Series ISBN: 9780841229945
Vitrinite Reflectance as a Maturity Parameter: Applications and Limitations
Vitrinite Reflectance as a Maturity Parameter: Applications and Limitations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::975a2ce8661fc77076e2581a41d0dfa0
https://doi.org/10.1021/bk-1994-0570.ch009
https://doi.org/10.1021/bk-1994-0570.ch009
Autor:
David F. Bensley, John C. Crelling
Publikováno v:
Advances in Coal Spectroscopy ISBN: 9781489936738
Fluorescence microspectrophotometry involves the study of coal at high magnification under ultraviolet radiation. For practical reasons we are generally restricted to analysis of that portion of the electromagnetic spectrum detectable with human visi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15a314c4de189bbea48991945cb4358f
https://doi.org/10.1007/978-1-4899-3671-4_6
https://doi.org/10.1007/978-1-4899-3671-4_6