Origin and geochemical evolution of the Michigan basin brine
Chemical and isotopic data were collected on 126 oil field brine samples and were used to investigate the origin and geochemical evolution of water in 8 geologic formations in the Michigan basin. Two groups of brine are found in the basin, the Na-Ca-Cl brine in the upper Devonian formations, and Ca-Na-Cl brine from the lower Devonian and Silurian aged formations. Water in the upper Devonian Berea, Traverse, and Dundee formations originated from seawater concentrated into halite facies. This brine evolved by halite precipitation, dolomitization, aluminosilicate reactions, and the removal of SO{sub 4} by bacterial action or by CaSO{sub 4} precipitation. The stable isotopic composition (D, O) is thought to represent dilution of evapo-concentrated seawater by meteoric water. Water in the lower Devonian Richfield, Detroit River Group, and Niagara-Salina formations is very saline Ca-Na-Cl brine. Cl/Br suggest it originated from seawater concentrated through the halite and into the MgSO{sub 4} salt facies, with an origin linked to the Silurian and Devonian salt deposits. Dolomitization and halite precipitation increased the Ca/Na, aluminosilicate reactions removed K, and bacterial action or CaSO{sub 4} precipitation removed SO{sub 4} from this brine. Water chemistry in the Ordovician Trenton-Black River formations indicates dilution of evapo-concentrated seawater by fresh or seawater. Possible saline end-members include Ordovician seawater, present-day upper Devonian brine, or Ca-Cl brine from the deeper areas in the basin.
- Research Organization:
- Michigan State Univ., East Lansing, MI (USA)
- OSTI ID:
- 6029640
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020200* -- Petroleum-- Reserves
Geology
& Exploration
ALKALI METALS
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
BIODEGRADATION
BRINES
BROMIDES
BROMINE COMPOUNDS
CALCIUM
CALCIUM CARBONATES
CALCIUM CHLORIDES
CALCIUM COMPOUNDS
CALCIUM HALIDES
CALCIUM SULFATES
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DECOMPOSITION
DEUTERIUM
DEVONIAN PERIOD
DILUTION
DOLOMITE
ELEMENTS
FEDERAL REGION V
GEOCHEMISTRY
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGIC STRUCTURES
GROUND WATER
HALIDE MINERALS
HALIDES
HALITE
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPE RATIO
ISOTOPES
LIGHT NUCLEI
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MAGNESIUM SULFATES
METALS
METEORIC WATER
MICHIGAN
MINERAL RESOURCES
MINERALIZATION
MINERALS
NORTH AMERICA
NUCLEI
ODD-ODD NUCLEI
OIL FIELDS
ORDOVICIAN PERIOD
ORIGIN
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
PALEOZOIC ERA
PETROLEUM DEPOSITS
POTASSIUM
PRECIPITATION
QUANTITY RATIO
RESOURCES
SALINITY
SAMPLING
SEAWATER
SEDIMENTARY BASINS
SEPARATION PROCESSES
SILICATES
SILICON COMPOUNDS
SILURIAN PERIOD
SODIUM
STABLE ISOTOPES
SULFATES
SULFUR COMPOUNDS
USA
WATER