Selenium and tellurium enrichment in palaeo-oil reservoirs

John Parnell*, David Bellis, Joerg Feldmann, Timothy Bata

*Corresponding author for this work

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The exploration for selenium (Se) and tellurium (Te) will become intensified as the technological demand for these elements grows. It is known that they are enriched in organic-rich sedimentary rocks over crustal mean values. LA-ICP-MS measurement of pyrite in two biodegraded palaeo-oil reservoirs in central England shows that Se and Te are enriched in them, but not in other sulfide samples from the region and elsewhere. The Carboniferous source rock shales in the region are Se-rich, implying that this enrichment was conferred to the oil generated from them. The Se and Te are located in pyrite precipitated in the palaeo-reservoirs by microbial activity. Exhumed oil reservoirs merit further investigation for concentrations of these elements.

Original languageEnglish
Pages (from-to)169-173
Number of pages5
JournalJournal of Geochemical Exploration
Volume148
Early online date28 Sep 2014
DOIs
Publication statusPublished - Jan 2015

Fingerprint

Tellurium
tellurium
Selenium
selenium
Oils
oil
pyrite
Sedimentary rocks
Sulfides
microbial activity
source rock
sedimentary rock
Rocks
sulfide

Keywords

  • Biodegradation
  • Microbial sulfate reduction
  • Oil reservoirs
  • Selenium
  • Tellurium

ASJC Scopus subject areas

  • Economic Geology
  • Geochemistry and Petrology

Cite this

Selenium and tellurium enrichment in palaeo-oil reservoirs. / Parnell, John; Bellis, David; Feldmann, Joerg; Bata, Timothy.

In: Journal of Geochemical Exploration, Vol. 148, 01.2015, p. 169-173.

Research output: Contribution to journalArticle

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