Extensional Evolution of the Gulf of Mexico Basin and the Deposition of Tertiary Evaporites

Wilson, H. Hugh

doi:10.1111/j.1747-5457.2004.tb00048.x

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…There are, however, numerous paradoxes and unresolved problems associated with this model as discussed by Warren (1999), Wilson (2003Wilson ( , 2004 and Talbot (2004) that clearly illustrate a lack of fundamental data, especially from the deepest portions of the salt basins, to verify this evaporite hypothesis as the general model for salt formation. The following citation from the most recent and authoritative Geological Encyclopedia (Selley, 2005) also underlines this conundrum: ''As the name suggests, it was once thought that evaporites formed exclusively from the drying out of enclosed marine basins.…”

Section: Introductionmentioning

confidence: 94%

Salt formation associated with sub-surface boiling and supercritical water

Hovland

Rueslåtten²,

Johnsen

et al. 2006

Marine and Petroleum Geology

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Section: Introductionmentioning

confidence: 94%

Salt formation associated with sub-surface boiling and supercritical water

Hovland

Rueslåtten²,

Johnsen

et al. 2006

Marine and Petroleum Geology

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“…The widely accepted hypothesis for the formation of geologically significant evaporites on Earth (mainly halite, anhydrite and gypsum) is the solar‐induced evaporation of seawater. There are, however, numerous paradoxes and unresolved problems associated with this model, as discussed by Warren (1999), Wilson (2003, 2004) and Talbot (2004) that clearly illustrate a lack of fundamental data, especially from the deepest portions of the salt basins, to verify this evaporite hypothesis as the general model for salt formation. The following citation from the most recent and authoritative Geological Encyclopedia (Selley, 2005) also underlines this conundrum: ‘As the name suggests, it was once thought that evaporites formed exclusively from the drying out of enclosed marine basins.…”

Section: Introductionmentioning

confidence: 99%

Sub‐surface precipitation of salts in supercritical seawater

Hovland

Kuznetsova

Rueslåtten³

et al. 2006

Basin Research

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Extremely low solubility of typical seawater salts within certain supercritical sections of their pressure^temperature composition space is a proven experimental fact. Its consequences are often referred to as either 'shock crystallization' or 'out-salting' . Our alternative model for the formation of salt deposits hypothesizes that high temperatures and pressures characteristic for the high heat-£ow zones of tectonically active basins may bring submarine brines into the out-salting regions and result in the accumulation of geological-scale salt depositions.To con¢rm the laboratory observations, molecular-scale simulations (molecular dynamics) have been employed to study structural changes in a model seawater system where temperature increased from ambient to near-critical and supercritical. Fluid properties and phase transition regions extracted from the simulations were then used as input parameters for a reservoir simulator program to model out-salting in a simple hydrothermal geological system. Both numerical simulations and laboratory experiments con¢rm that supercritical out-salting is a viable process of geological signi¢cance for the formation and accumulation of evaporites.We suggest two regions where hydrothermally associated salts may be depositing today: Atlantis II Deep, in the Red Sea, and Lake Asale, Ethiopia. Supercritical waterThe critical point (CP) for distilled water is 374.15 1C and 221.2 bar. Beyond this point, the physical and chemical properties of water change fundamentally; e.g. the dielec-Correspondence: Martin Hovland,

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Western Caribbean Tectonics

Keppie

2014

SpringerBriefs in Earth Sciences

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Extensional Evolution of the Gulf of Mexico Basin and the Deposition of Tertiary Evaporites

Cited by 3 publications

References 15 publications

Salt formation associated with sub-surface boiling and supercritical water

Salt formation associated with sub-surface boiling and supercritical water

Sub‐surface precipitation of salts in supercritical seawater

Western Caribbean Tectonics

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