Paleomagnetic studies of salt domes

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6504181

Gose, W A; Kyle, J R

For the past several years, the authors have been pursuing a detailed paleomagnetic and petrographic study of the anhydrite cap rock of the Winnfield salt dome in Louisiana. This is the first such study ever undertaken and offers new insight into the timing of basinal and halokinetic processes. At Winnfield, periodic introduction of metalliferous fluids along the salt or anhydrite interface resulted in the formation of stratiform sulfide laminae, which contain the magnetic mineral pyrrhotite. Dense stratigraphic sampling of a 40-m section of the anhydrite yielded a magnetic reversal sequence that corresponds to sea-floor maganetic anomalies M22 to M20 (Kimmeridgian) and the authors were thus able to determine directly the age and rate of anhydrite accumulation. They recently sampled an additional 20 m of section at Winnfield and initiated a similar study of the Damon Mound, a salt dome in the Houston diapir province.

• OSTI ID: 6504181
• Report Number(s): CONF-880301-
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
AGE ESTIMATION
ALKALINE EARTH METAL COMPOUNDS
ANHYDRITE
CALCIUM COMPOUNDS
CALCIUM SULFATES
CHALCOGENIDES
EXPLORATION
FEDERAL REGION VI
GEOLOGIC DEPOSITS
GEOLOGIC HISTORY
GEOLOGY
GEOMAGNETIC FIELD
GEOPHYSICS
IRON COMPOUNDS
IRON SULFIDES
LOUISIANA
MAGNETIC FIELDS
MAGNETISM
MINERAL RESOURCES
MINERALOGY
MINERALS
NATURAL GAS DEPOSITS
NORTH AMERICA
OXYGEN COMPOUNDS
PALEOMAGNETISM
PALEONTOLOGY
PETROGRAPHY
PETROLEUM DEPOSITS
PETROLEUM GEOLOGY
PYRRHOTITE
RESOURCES
SALT DEPOSITS
SEA BED
SOURCE ROCKS
SULFATE MINERALS
SULFATES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
USA