Open AccessThe vanadium isotopic constitution of petroleum asphaltenes: La Luna Formation (Venezuela)
Author(s) -
I Pavle Premovic,
Milan Djordjević,
A R Ivan Tonsa,
Liliana López,
Salvador Lomonaco,
S. Pavlovic,
V Miomir Veljkovic,
M Olivera Neskovic
Publication year - 2000
Publication title -
journal of the serbian chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 45
eISSN - 1820-7421
pISSN - 0352-5139
DOI - 10.2298/jsc0008561p
Subject(s) - asphaltene , kerogen , vanadium , petroleum , source rock , chemistry , seawater , mineralogy , high resolution , mass spectrometry , environmental chemistry , analytical chemistry (journal) , geology , geochemistry , inorganic chemistry , chromatography , paleontology , organic chemistry , oceanography , remote sensing , structural basin
High resolution mass spectrometry indicates that the isotopic abundance of 50Vanadium (V) of the Late Cretaceous La Luna petroleum asphaltenes and related source kerogen of marine origin (both highly enriched with V > 2000 ppm) is higher by about 3.5% than that of an inorganic vanadium source (VOS04?5H20, Merek). It is proposed that the difference in the 50V/51V values between the La Luna source kerogen/the associated petroleum asphaltenes and the inorganic source can be best ascribed to the biological processing of seawater V. The fact that the isotopic compositions of V vary over a very narrow range (2.46-2.50) suggest an essentially same (or similar) and fixed biological source of V.