Fluid Migration
Migrating fluids originate from the sediments of the foreland basin and migrate in response to deformation. As a result, brine can migrate over great distances. Evidence of long-range migration includes: 1) Correlation of petroleum to distant source rocks 2) Ore bodies deposited from metal-bearing brines, 3) Anomalous thermal histories for shallow sediments, 4) Regional potassium metasomatism, 5) Epigenetic dolomite cements in ore bodies and deep aquifers (Bethke & Marshak 1990).
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