What is Cocos Ridge?

Tectonic Setting [4] The Cocos ridge is a bathymetric feature of more than. 1000-km long southwest-northeast trending on the Cocos. plate. It rises about 2000 m above the average depth of the. adjacent basins and is 250–500 km broad (Figure 1).

What is Cocos Plate and Caribbean plate boundary type?

This subduction-subduction-transform (SST) triple junction is referred to hereafter as the NACC triple junction. Off the Pacific coast, the Cocos plate is subducted beneath both the North American and Caribbean plates, which are separated by a sinistral transcurrent boundary.

What type of boundary is Cocos and Nazca?

The southeastern rough-smooth boundary is thus an isochron that marks the time of origin of the Cocos-Nazca spreading center and the rifting apart of the Farallon plate to form the Cocos and Nazca plates.

Which direction does the Cocos Plate move?

northeast direction
The Isla del Coco and thus the Cocos Plate is moving at a steady rate of about 91 millimeters per year in a northeast direction relative to the International Terrestrial Reference Frame (IRTF2008), based on the 10 months of data from the new island station (ISCO).

Is the Cocos Plate growing or shrinking?

The Cocos Plate, running along the ocean floor off the Pacific coast of Central America, moves 75 mm or 3 inches a year — almost 25 feet per century. That’s roughly twice the average velocity of the earth’s plates.

What type of boundary is the Cocos Plate?

The northern boundary of the Cocos Plate is the Middle America Trench. The eastern boundary is a transform fault, the Panama Fracture Zone. The southern boundary is a mid-oceanic ridge, the Galapagos Rise. The western boundary is another mid-ocean ridge, the East Pacific Rise.

What type of boundary is Cocos Plate?

What is the classification of Cocos Plate?

The Cocos Plate is a young oceanic tectonic plate beneath the Pacific Ocean off the west coast of Central America, named for Cocos Island, which rides upon it. The Cocos Plate was created approximately 23 million years ago when the Farallon Plate broke into two pieces, which also created the Nazca Plate.

Why is the Nazca Plate getting smaller?

Shrinking of the Cocos and Nazca Plates due to Horizontal Thermal Contraction and Implications for Plate Non-rigidity and the Non-closure of the Pacific-Cocos-Nazca Plate Motion Circuit.

What will happen to Cocos Plate?

As the Cocos slab heads into the subduction zone under the North American plate, it bends and cracks. As the slab passes into and through the subduction zone into the lower mantle, it warms up and dehydrates.

Can divergent boundaries cause volcanoes?

Most volcanoes form at the boundaries of Earth’s tectonic plates. The two types of plate boundaries that are most likely to produce volcanic activity are divergent plate boundaries and convergent plate boundaries. Divergent Plate Boundaries. At a divergent boundary, tectonic plates move apart from one another.