A bottom gravity survey of the shallow water regions of southern Monterey Bay and its geological interpretation
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Authors
Brooks, Robert Andrew
Subjects
Advisors
Andrews, Robert S.
von Schwind, J.J.
Date of Issue
1973-03
Date
Publisher
Monterey, CA; Naval Postgraduate School
Language
en_US
Abstract
Eighty-two ocean bottom gravity stations in southern
Monterey Bay were occupied in the summer and fall of 1972 from
the R/V ACANIA. A land gravity survey of ten stations about
the perimeter of the Bay was conducted in the spring of 19 72.
Gravimeters employed were LaCoste and Romberg Models H6G and
G-17B, respectively.
Conventional steps in data reduction are discussed, and a
terrain correction theory unique to ocean bottom gravimetry
is presented. The complete Bouguer anomaly (CBA) field for
bottom and shoreline surveys is included.
The geological interpretation of the gravity data is
discussed briefly. Sub-bottom structure of southern Monterey
Bay as determined by seismic reflection is verified by the
CBA field, and a calculated density contrast between the
basement granodiorite and overlying sedimentary strata is
found to be realistic. The data supports the existence of a
fault oriented beneath the Monterey Submarine Canyon.
Type
Thesis
Description
Series/Report No
Department
Oceanography (OC)
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.