Sediment accumulation rates in time and space: Paleogene genetic stratigraphic sequences of the northwestern Gulf of Mexico basin
Journal Article
·
· Geology; (United States)
- Univ. of Texas, Austin (United States)
The Paleogene fill of the northwestern Gulf of Mexico basin consists of eight genetic stratigraphic sequences bounded by regional marine flooding surfaces. Calculation of sediment accumulation rates along dip profiles through four subbasins shows that regional changes in accumulation rate - and by inference, rate of sediment supply - of fivefold to tenfold repeatedly occurred over time spans of 1 to 3 m.y. Major sequences record episodes of high supply and accommodation-limited accumulation. Periods of declining and low supply were characterized by short-term over-accommodation and consequent transgressive flooding of the basin margin. Within sequences, depositional rates varied with position relative to the contemporaneous shelf margin, with type of depositional system, and between subbasins. Normal patterns of load-induced basin-margin subsidence and creation of accommodation space were modified by perturbation of the crustal stress regime.
- OSTI ID:
- 5877801
- Journal Information:
- Geology; (United States), Journal Name: Geology; (United States) Vol. 19:10; ISSN GLGYB; ISSN 0091-7613
- Country of Publication:
- United States
- Language:
- English
Similar Records
Depositional system evolution within Paleogene supply-dominated genetic stratigraphic sequences, northwest Gulf of Mexico basin
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Integrated well-log, seismic, and biostratigraphic approach to sequence stratigraphy in Late Cenozoic expanded sections, Gulf of Mexico
Conference
·
Thu Feb 28 23:00:00 EST 1991
· AAPG Bulletin (American Association of Petroleum Geologists); (United States)
·
OSTI ID:5739612
Stratigraphic signatures of the tectonic and eustatic effects during the post-rift history of the tethyan margin in the southern Vercors (France)
Conference
·
Tue May 01 00:00:00 EDT 1990
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
·
OSTI ID:6645645
Integrated well-log, seismic, and biostratigraphic approach to sequence stratigraphy in Late Cenozoic expanded sections, Gulf of Mexico
Conference
·
Thu Feb 28 23:00:00 EST 1991
· AAPG Bulletin (American Association of Petroleum Geologists); (United States)
·
OSTI ID:7262506
Related Subjects
58 GEOSCIENCES
580000* -- Geosciences
ATLANTIC OCEAN
CARIBBEAN SEA
CENOZOIC ERA
CONTINENTAL MARGIN
DATA ANALYSIS
DEPOSITION
GEOLOGIC AGES
GEOLOGIC HISTORY
GEOLOGIC STRUCTURES
GEOLOGY
GROUND SUBSIDENCE
GULF OF MEXICO
ORIGIN
SEAS
SEDIMENTARY BASINS
SEDIMENTATION
SEDIMENTS
STRATIGRAPHY
SURFACE WATERS
TERTIARY PERIOD
VARIATIONS
580000* -- Geosciences
ATLANTIC OCEAN
CARIBBEAN SEA
CENOZOIC ERA
CONTINENTAL MARGIN
DATA ANALYSIS
DEPOSITION
GEOLOGIC AGES
GEOLOGIC HISTORY
GEOLOGIC STRUCTURES
GEOLOGY
GROUND SUBSIDENCE
GULF OF MEXICO
ORIGIN
SEAS
SEDIMENTARY BASINS
SEDIMENTATION
SEDIMENTS
STRATIGRAPHY
SURFACE WATERS
TERTIARY PERIOD
VARIATIONS