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GEOREF RECORD

A "Sigsbee Knoll" in early Tertiary Bay of Biscay and associated turbidity currents

J. Hanisch
A "Sigsbee Knoll" in early Tertiary Bay of Biscay and associated turbidity currents
AAPG Bulletin (November 1978) 62 (11, Part 1): 2232-2242

Abstract

A submarine seamount similar to the Sigsbee Knolls on the ocean floor of the Gulf of Mexico arose within the Biscaya flysch basin during the Late Cretaceous and early Tertiary. It was generated by a diapir of Triassic evaporites and caused important changes in facies and thickness of turbidite strata. When turbidity currents reached the submarine hill, sand was deposited mainly on the lower part of the diapir flank, and mud accumulated at the deepest point of the rim syncline. The knoll also produced a strong dispersion in current directions as indicated by a new method developed for reconstruction of current-direction patterns in space and time.


ISSN: 0149-1423
EISSN: 1558-9153
Coden: AABUD2
Serial Title: AAPG Bulletin
Serial Volume: 62
Serial Issue: 11, Part 1
Title: A "Sigsbee Knoll" in early Tertiary Bay of Biscay and associated turbidity currents
Author(s): Hanisch, J.
Pages: 2232-2242
Published: 197811
Text Language: English
Publisher: American Association of Petroleum Geologists, Tulsa, OK, United States
References: 29
Accession Number: 1979-005446
Categories: Sedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sects., geol. sketch maps
N43°10'00" - N44°00'00", W03°00'00" - W01°30'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute.
Update Code: 1979
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