Rivera Ocean seismic experiment (ROSE) overview
The Rivera Ocean Seismic Experiment (ROSE) was designed as a combined sea and land seismic program to utilize both explosive and earthquakes to study a number of features of the structure and evolution of a mid-ocean ridge, a major oceanic fracture zone, and the transition region between ocean and continent. The primary region selected for the experiment included the Rivera Fracture Zone, the crest and eastern flank of the East Pacific north of the Rivera and adjacent areas of Baja California and mainland Mexico. The experiment included: (1) study of the East Pacific Rise south of the Orozco Fracture Zone primarily using ocean bottom recording and explosive sources. (2) a seismicity program at the Orozco, and (3) a land-based program of recording natural events along the coastal region of Mexico. A considerable amount of useful data was obtained in each of the three subprograms. In the marine parts of the experiment we were able to address a variety of problems including structure and evolution of young oceanic crust and mantle, structure and dynamics of the East Pacific Rise, seismicity of the Orozco Fracture Zone, and partitioning of energy transmission between the ocean volume and the crust/lithosphere. On land, the fortuitous occurrence of the Petatlan M7.6 earthquake of March 14, 1979, permitted the acquisition of an excellent data set of foreshocks and aftershocks of this large event, which provide new insight into the filling of a major seismic gap in the region. This overview describes the scientific rationale and the design of the experiments, along with some general results.
- Research Organization:
- Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543
- OSTI ID:
- 6519657
- Journal Information:
- J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 87:B10; ISSN JGREA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microearthquake activity on the Orozco Fracture Zone: Preliminary results from Project ROSE
Northern east Pacific rise: Magnetic anomaly and bathymetric framework
Related Subjects
580201 -- Geophysics-- Seismology & Tectonics-- (1980-1989)
580500* -- Oceanography-- (1980-1989)
AFTERSHOCKS
COASTAL REGIONS
CONTINENTAL MARGIN
DEVELOPING COUNTRIES
EARTH CRUST
EARTH MANTLE
EXPLOSIONS
FORESHOCKS
GEOLOGIC STRUCTURES
LATIN AMERICA
MEXICO
NORTH AMERICA
OCEANIC CRUST
PACIFIC OCEAN
RIFT ZONES
SEA BED
SEAS
SEISMIC SOURCES
SEISMICITY
SURFACE WATERS