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- W2003667035 abstract "A comparative study of the stable carbon isotopes, the aliphatic and aromatic hydrocarbons and the normal fatty acids in four differentiated organic phases (designated in this report as bitumens A, B, C and D) from Windy Knoll, Derbyshire, England, shows the following: 1. (1) The average abundances of 13 C (relative to the P.D.B. standard and in parts per thousand) in the bitumens vary from −28.0 (bitumen B) to −30.7 (bitumen C) well within the range of petroleum. 2. (2) Isoprenoid hydrocarbons are present in bitumen A (C 14 - C 21 ; 198 p.p.m.), bitumen B (C 15 - C 20 ; 11 p.p.m.), bitumen C (C 15 - C 23 ; 157 p.p.m.) and bitumen D (C 16 , C 18 - C 23 ; 515 p.p.m.) 3. (3) Normal alkanes are present in bitumen A (<C 11 - C 30 ; 1,850 p.p.m.) and bitumen B (C 12 - C 23 ; 31 p.p.m.) but were not detected in bitumens C and D. 4. (4) Aromatic hydrocarbons are present in bitumen B (alkyl substituted naphthalenes, biphenyl and phenanthrene; 4 p.p.m.) and bitumen D (dimethyl naphthalene and phenanthrene; 2 p.p.m.) but were not observed in bitumens A and C. 5. (5) Normal fatty acids were observed in bitumen A (C 10 - C 18 ; 2 p.p.m.), bitumen B (C 9 - C 22 ; 77 p.p.m.) bitumen C (C 10 - C 18 ; 34 p.p.m.) and bitumen D (C 10 - C 18 ; 6 p.p.m.). The fatty acids in bitumens A and D have a pronounced even-over-odd carbon number preference. These results provide additional evidence that the organic matter at Windy Knoll is of biogenic origin. They also indicate that normal alkanes were removed from or depleted in some of the bitumens." @default.
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- W2003667035 date "1973-06-01" @default.
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- W2003667035 title "Isotopic and chemical data of bitumens associated with hydrothermal veins from Windy Knoll, Derbyshire, England" @default.
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- W2003667035 doi "https://doi.org/10.1016/0009-2541(73)90016-8" @default.
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