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The Gulf of California Rift Zone (GCRZ) is the northernmost extension of the East Pacific Rise which extends some 1,300 km (800 mi) from the mouth of the Gulf of California to the southern terminus of the San Andreas Fault at the Salton Sink. The GCRZ is an incipient rift zone akin to the Red Sea Rift.
Hydrothermal vent diagram. Hydrothermal circulation, or the circulation of hot water, is a predominant feature of the Guaymas Basin. Hydrothermalism is mainly observed in the southern trough of the basin where hydrothermal vents make up a hydrothermal complex on the seafloor by creating mounds, chimney structures, and sediments. [7]
The NARS-Baja Seismic Array in the Gulf of California Rift Zone, Clayton, R. W., et al. (2004), Margins Newsletter; A Brief Review of Heat-Flow Studies in the Guaymas Basin, Gulf of California, Chapter 33, Part VI, Hydrothermal Processes, K. Becker, A. T. Fisher, AAPG Special Volumes, Volume M 47: The Gulf and Peninsular Province of the Californias, Pages 709–720 (1991)
This extension of the East Pacific Rise is often referred to as the Gulf of California Rift Zone. The Gulf would extend as far as Indio, California, except for the tremendous delta created by the Colorado River. This delta blocks the sea from flooding the Mexicali and Imperial Valleys. Volcanism dominates the East Pacific Rise.
2 Gulf of California Rift Zone (GCRZ) 3 Yucatán. ... Print/export Download as PDF; Printable version; In other projects
The Alarcon Basin is a submarine depression located on the seabed at the southern end of the Gulf of California. The basin results from the activity of the southernmost spreading center in the Gulf. This spreading center has also produced the southernmost oceanic rift in the Gulf of California Rift Zone, the Alarcon Rise.
The Pescadero Fault is a right lateral-moving transform fault located on the seafloor of the southern Gulf of California. It links the Pescadero Basin to the north with the Alarcon Basin to the south. All these features are part of the Gulf of California Rift Zone, the northern extension of the East Pacific Rise.
The Salton Trough is a result of crustal stretching and sinking caused by the combined actions of the San Andreas Fault and the East Pacific Rise, particularly the Gulf of California Rift Zone (GCRZ), the northernmost portion of the East Pacific Rise.