Origin of petroporphyrins. 2. Evidence from stable carbon isotopes

Journal Article · · Energy and Fuels; (USA)

DOI:https://doi.org/10.1021/ef00024a007· OSTI ID:5976310

Boreham, C J ^[1]; Fookes, C J.R. ^[2]; Popp, B N; Hayes, J M ^[3]

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1. Bureau of Mineral Resources, Canberra (Australia)
2. CSIRO, Menai (Australia)
3. Indiana Univ., Bloomington (USA)

Compared with the carbon-13 isotopic composition of the ubiquitous C{sub 32}DPEP (DPEP, deoxophylloerythroetioporphyrin) the heavy but equivalent carbon-13 isotopic composition for the porphyrin structures 15(2)-methyl-15,17-ethano-17-nor-H-C{sub 30}DPEP and 15,17-butano-, 13,15-ethano-13(2),17-propano-, and 13(1)-methyl-13,15-ethano-13(2),17-propanoporphyrin suggests a common precursor, presumably chlorophyll c, for these petroporphyrins isolated from the marine Julia Creek oil shale and the lacustrine Condor oil shale. Similarly, the heavy but variable carbon-13 isotopic composition of 7-nor-H-C{sub 31}DPEP compared with C{sub 32}DPEP is consistent with an origin from both chlorophyll b and chlorophyll c{sub 3}. The equivalent carbon-13 isotopic composition for 13(2)-methyl-C{sub 33}DPEP compared with C{sub 32}DPEP suggests a common origin resulting from a weighted average of chlorophyll inputs.

• OSTI ID: 5976310
• Journal Information: Energy and Fuels; (USA), Journal Name: Energy and Fuels; (USA) Vol. 4:6; ISSN 0887-0624; ISSN ENFUE
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040200* -- Oil Shales & Tar Sands-- Reserves
Geology
& Exploration
040500 -- Oil Shales & Tar Sands-- Properties & Composition
BITUMINOUS MATERIALS
CARBON 13
CARBON ISOTOPES
CARBONACEOUS MATERIALS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHLOROPHYLL
ENERGY SOURCES
EVEN-ODD NUCLEI
FOSSIL FUELS
FUELS
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
ISOTOPE RATIO
ISOTOPES
LIGHT NUCLEI
MATERIALS
NICKEL COMPOUNDS
NUCLEI
OIL SHALES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
ORIGIN
PHYTOCHROMES
PIGMENTS
PORPHYRINS
PROTEINS
REACTION INTERMEDIATES
STABLE ISOTOPES
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS