Uranium distribution as a proxy for basin-scale fluid flow in distributive fluvial systems

A. Owen, A. J. Hartley, G. S. Weissmann, G. J. Nichols

Research output: Contribution to journalArticle

3 Citations (Scopus)
6 Downloads (Pure)

Abstract

We infer system scale fluid flow in the Late Jurassic Salt Wash fluvial succession (SW USA) by plotting uranium deposit distribution against sedimentological data, using uranium distribution as a proxy for subsurface fluid flow. More than 90% of Uranium deposits in the Salt Wash occur where sandstone comprises 40-55% and sand-rich channel-belts form 20-50% of the succession, which coincides with changes in channel-belt connectivity and gross-scale architecture. The paucity of uranium below these cut-off values, suggests fluid flow is related directly to predictable downstream fining and facies variations in distributive fluvial systems.
Original languageEnglish
Pages (from-to)569-572
Number of pages4
JournalJournal of the Geological Society
Volume173
Issue number4
Early online date24 Mar 2016
DOIs
Publication statusPublished - Jul 2016

Keywords

  • connectivity
  • permeability
  • distributive fluvial systems
  • salt wash member
  • uranium

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