Comparative anatomy of changes in post-Jurassic global sea level and spreading rates

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

OSTI ID:5992512

Pigott, J D; Austin, M N; Willis, L A

Changes in global sea level are important forcing functions upon the quality and quantity of sedimentation within basins. Additional overprints are caused by local to global tectonism. An understanding of the intimate relationships between changes in global sea level and concomitant global tectonism is crucial to the accurate modeling and prediction of secular trends in basin sedimentary response. Previous investigators have qualitatively hypothesized the temporal relationships between plate spreading rates and changes in sea level. In order to quantify and compare the major frequency components of the post-Jurassic global sea-level curve with that of global spreading rates, the published data were converted into the frequency domain by taking the discrete Fourier transform. The resulting power spectral densities delineate the major harmonics of the separate curves. Cross correlation reveals five frequencies common to both changes in global sea level and spreading rates.

• OSTI ID: 5992512
• Report Number(s): CONF-880301-
• Resource Relation: Conference: Annual meeting of the American Association of Petroleum Geologists, Houston, TX, USA, 20-23 Mar 1988
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
SEA LEVEL
GLOBAL ASPECTS
SEDIMENTARY BASINS
PLATE TECTONICS
COMPARATIVE EVALUATIONS
FOURIER ANALYSIS
JURASSIC PERIOD
SEA-FLOOR SPREADING
SPECTRAL DENSITY
WAVE EQUATIONS
DIFFERENTIAL EQUATIONS
EQUATIONS
FUNCTIONS
GEOLOGIC AGES
GEOLOGIC STRUCTURES
LEVELS
MESOZOIC ERA
PARTIAL DIFFERENTIAL EQUATIONS
SPECTRAL FUNCTIONS
TECTONICS
020200* - Petroleum- Reserves
Geology
& Exploration