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

doi:10.1144/jgs2016-007

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

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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 language	English
Pages (from-to)	569-572
Number of pages	4
Journal	Journal of the Geological Society
Volume	173
Issue number	4
Early online date	24 Mar 2016
DOIs	https://doi.org/10.1144/jgs2016-007
Publication status	Published - Jul 2016

Keywords

connectivity
permeability
distributive fluvial systems
salt wash member
uranium

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Uranium distribution as a proxy for basin scale fluid flow for pure
Journal of the Geological Society Volume173/2016 doi: 10.1144/jgs2016-007 © Geological Society of London 2016.
Accepted author manuscript, 1.61 MBLicence: Unspecified

Adrian Hartley
- School of Geosciences, Geology and Geophysics - Chair in Sedimentology and Stratigraphy
- Centre for Energy Transition
Person: Academic

Cite this

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title = "Uranium distribution as a proxy for basin-scale fluid flow in distributive fluvial systems",

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.",

keywords = "connectivity, permeability, distributive fluvial systems , salt wash member, uranium",

author = "A. Owen and Hartley, {A. J.} and Weissmann, {G. S.} and Nichols, {G. J.}",

note = "This work was supported by the Fluvial Systems Research Group sponsors BG Group, BP, Chevron, ConocoPhilips, and Total. We thank reviews from Martin Stokes, an anonymous reviewer and Editor Stuart Jones. ",

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doi = "10.1144/jgs2016-007",

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T1 - Uranium distribution as a proxy for basin-scale fluid flow in distributive fluvial systems

AU - Owen, A.

AU - Hartley, A. J.

AU - Weissmann, G. S.

AU - Nichols, G. J.

N1 - This work was supported by the Fluvial Systems Research Group sponsors BG Group, BP, Chevron, ConocoPhilips, and Total. We thank reviews from Martin Stokes, an anonymous reviewer and Editor Stuart Jones.

PY - 2016/7

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N2 - 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.

AB - 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.

KW - connectivity

KW - permeability

KW - distributive fluvial systems

KW - salt wash member

KW - uranium

U2 - 10.1144/jgs2016-007

DO - 10.1144/jgs2016-007

M3 - Article

VL - 173

SP - 569

EP - 572

JO - Journal of the Geological Society

JF - Journal of the Geological Society

SN - 0016-7649

IS - 4

ER -

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

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Adrian Hartley

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