McIntosh, Jennifer C.
Grasby, Stephen E.
Hendry, M. Jim
Lindsay, Matthew B. J.
AffiliationUniv Arizona, Dept Hydrol & Atmospher Sci
MetadataShow full item record
PublisherAMER GEOPHYSICAL UNION
CitationFerguson, G., McIntosh, J. C., Grasby, S. E., Hendry, M. J., Jasechko, S., Lindsay, M. B. J., & Luijendijk, E. (2018). The persistence of brines in sedimentary basins. Geophysical Research Letters, 45, 4851–4858. https://doi.org/10.1029/2018GL078409
JournalGEOPHYSICAL RESEARCH LETTERS
Rights©2018. American Geophysical Union. All Rights Reserved.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractBrines are commonly found at depth in sedimentary basins. Many of these brines are known to be connate waters that have persisted since the early Paleozoic Era. Yet questions remain about their distribution and mechanisms for retention at depth in the Earth's crust. Here we demonstrate that there is insufficient topography to drive these dense fluids from the bottom of deep sedimentary basins. Our assessment based on driving force ratio indicates that sedimentary basins with driving force ratio > 1 contain connate waters and frequently host large evaporite deposits. These stagnant conditions appear to be relatively stable over geological time and insensitive to factors such as glaciations, erosion, compaction, and hydrocarbon generation.
Note6 month embargo; published online: 08 May 2018
VersionFinal published version
SponsorsNSERC [RGPIN-2017-05568]; National Science Foundation [EAR-1322805]; W.M. Keck Foundation