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Triple junction
In this way, as the MTJ migrates, there is production of a basal conveyor belt beneath North America that transports material from the south to the north. The Ethiopian dome experienced its largest uplift coinciding with the end of the Neogene uplift associated with the Kenyan dome. There are many domes throughout the East African Rift System. The Journal of Geology. Another example of a triple junction is the junction between the Arabian Plate, the African Plate, and the Indo-Australian Plate. This area is considered a present-day example of leading to and producing an. Stratigraphic Evolution of the Benue Trough and Its Implications for the Upper Cretaceous Paleogeography of West Africa. Here, the meets the Aden Ridge and the. This rise of the heat flow anomaly time implies that there is probably only a thin crustal lid above the slab window. The of the south triple junction at the south of the and continents, reaching a triple junction in the presentfrom where it continued to the west. Thus, analysis of triple junctions can usually be done on a flat surface with motions defined by vectors.
Transform-Transform-Trench, Ridge-Ridge-Ridge, or abbreviated F-F-T, R-R-R. The extends north and south from this junction and the goes to the east. It turns out that the chemistry of erupted associated with the MTJ are typical of mantle wedge—derived melts, characterized by enrichment in the large-ion lithophile elements and depletion in the high-field-strength elements. In the years since, the term triple-junction has come to refer to any point where three tectonic plates meet.
Interpretation The properties of triple junctions are most easily understood from the purely kinematic point of view where the plates are rigid and moving over the surface of the Earth. It has been argued that the current Ethiopian plateau is a result of the most recent uplift of 500 m estimated to be an Oligocene-early Miocene event. Due to the relative plate motions, the triple junction junction has been migrating northwards for the past 25—30 million years, and assuming rigid plates, the geometry requires that a void, calleddevelop southeast of the MTJ. But the area around a triple junction is small enough relative to the size of the sphere and usually far enough from the pole of rotation, that the relative motion across a boundary can be assumed to be constant along that boundary. Gani 2007 proposes that episodic increase of incision of the Ethiopian Plateau suggests episodic growth rates within the plateau. Please towithout removing the technical details.
Triple junction
The term has traditionally been used for the intersection of three divergent boundaries or spreading ridges. This instigates different tectonic processes, which include surficial uplift, crustal deformation, intense seismic activity, high heat flow, and even the extrusion of volcanic rocks. To the south, thea strike-slip fault and transform plate boundary, separates the and the. Rifting is said to have begun in the epoch to Paleogene period.
For other uses, see. The of the south Atlantic Ocean began with a triple junction in the present Gulf of Guinea.