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Uranium distribution as a proxy for basin-scale fluid flow in distributive fluvial systems (2016)

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

Geological Society of London

In: Journal of the Geological Society

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Publication Date: 2016-07-05

Description: 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 forms 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 that fluid flow is related directly to predictable downstream fining and facies variations in distributive fluvial systems. Supplementary material: A summary table of location data, key trends and the amalgamation ratio method is available at https://doi.org/10.6084/m9.figshare.c.2849581 .

Print ISSN: 0016-7649

Topics: Geosciences

Published by Geological Society of London

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