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Monitoring aseismic tectonic processes via hydrologic responses; an analysis of log-periodic fluid flow events at the Costa Rica outer rise

Michael D. Tryon
Monitoring aseismic tectonic processes via hydrologic responses; an analysis of log-periodic fluid flow events at the Costa Rica outer rise
Geology (Boulder) (February 2009) 37 (2): 163-166

Abstract

A log-periodic series of fluid inflow events from the outer rise off the Nicoya Peninsula, Costa Rica, was recorded on a flow meter deployed at the sediment surface. Similar periodic series have been seen in many failure processes in laboratory and field research, including seismic and chemical records preceding earthquakes. Each cycle has the appearance of an impulse and subsequent decay. The hypothesis that the recorded flow pattern is a result of a series of relatively small strain events resulting from aseismic extensional faulting of the outer rise basement is explored, and analytical results supporting this hypothesis are presented.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 37
Serial Issue: 2
Title: Monitoring aseismic tectonic processes via hydrologic responses; an analysis of log-periodic fluid flow events at the Costa Rica outer rise
Author(s): Tryon, Michael D.
Affiliation: Scripps Institution of Oceanography, La Jolla, CA, United States
Pages: 163-166
Published: 200902
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 24
Accession Number: 2009-031189
Categories: Solid-earth geophysicsOceanography
Document Type: Serial
Bibliographic Level: Analytic
Annotation: With GSA Data Repository Item 2009042
Illustration Description: illus. incl. 2 tables, sketch map
N09°00'00" - N10°00'00", W86°19'60" - W86°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 200917
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