An 8-10 Ma tectonic event on the Cocos Plate offshore Costa Rica: Result of Cocos Ridge collision?

Details An 8-10 Ma tectonic event on the Cocos Plate offshore Costa Rica: Result of Cocos Ridge collision? An 8-10 Ma tectonic event on the Cocos Plate offshore Costa Rica: Result of Cocos Ridge collision?

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3118601s&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 18, CiteID L18601

Physics

Geophysics

4

Marine Geology And Geophysics: Heat Flow (Benthic) And Hydrothermal Processes, Marine Geology And Geophysics: Marine Seismics (0935), Marine Geology And Geophysics: Midocean Ridge Processes, Marine Geology And Geophysics: Seafloor Morphology And Bottom Photography, Tectonophysics: Plate Boundary-General (3040)

Scientific paper

Upper oceanic crust within the Cocos Plate offshore northwestern Costa Rica is dominated by sill intrusions of various ages, recognized regionally as smooth, high amplitude seismic reflections at the base of the sedimentary sequence and locally by dolerites and microgabbros recovered by drilling. Earlier interpretation of seafloor magnetic anomalies documented a set of spreading ridge jumps at 19.5 and 14.5 Ma, continuing to the present. In addition to these events, we present evidence for a widespread tectonic event in the period 8-10 Ma displayed in reflection seismic data recorded during the Ticoflux 1 and 2 experiments and dated by seismic correlation to ODP Site 1039. The 8-10 Ma events may have been triggered by collision of the Cocos Ridge at this time and facilitated by widespread sill intrusion associated with the Galapagos Hot Spot.

Affiliated with

Also associated with

No associations

Rating

An 8-10 Ma tectonic event on the Cocos Plate offshore Costa Rica: Result of Cocos Ridge collision? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An 8-10 Ma tectonic event on the Cocos Plate offshore Costa Rica: Result of Cocos Ridge collision?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An 8-10 Ma tectonic event on the Cocos Plate offshore Costa Rica: Result of Cocos Ridge collision? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1065062