Common Occurences Of Authentic Pyrite crystals in Cretaceous Oil Sands as Consequence Of Biodegradation Processes

Timothy Bata (), Nuhu K. Samail, A.S. Maigari, M. B. Abubakar and Simon Y. Ikyoive
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Timothy Bata: Department of Applied Geology, Abubakar Tafawa Balewa University, Bauchi, Nigeria
Nuhu K. Samail: Department of Applied Geology, Abubakar Tafawa Balewa University, Bauchi, Nigeria
A.S. Maigari: Department of Applied Geology, Abubakar Tafawa Balewa University, Bauchi, Nigeria
M. B. Abubakar: Department of Applied Geology, Abubakar Tafawa Balewa University, Bauchi, Nigeria
Simon Y. Ikyoive: Department of Applied Geology, Abubakar Tafawa Balewa University, Bauchi, Nigeria

Geological Behavior (GBR), 2017, vol. 1, issue 2, 26-30

Abstract: Ten (10) Cretaceous oil sands from different localities around the world were studied with the aim of reporting the common occurrence of authigenic pyrite crystals in them. The observed pyrite crystals (both framboid and euhedral) are restricted to the pore spaces of the studied oil sands, in close association with biodegraded oils and other authigenic minerals. Diagenetic processes in one of the studied samples triggered the transformation of framboidal pyrite crystals to octahedral pyrite crystals. This study demonstrates that geological conditions/processes that lead to the formation of authigenic pyrite crystals in sandstones are those that favour biodegradation. Potentially, these conditions include occurrence at shallow depths (

Keywords: Framboidal pyrite; Euhedral pyrite; sulfate-reducing bacteria; Cretaceous oil sands (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:zib:zbngbr:v:1:y:2017:i:2:p:26-30

DOI: 10.26480/gbr.02.2017.26.30

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