Azores triple junction - Wikipedia
The Azores triple junction (ATJ) is a geologic triple junction where the boundaries of three tectonic plates intersect: the North American plate, the Eurasian plate and the African plate. This triple junction is located along the Mid-Atlantic Ridge (MAR) amidst the Azores islands, nearly due west of the Strait of Gibraltar .
Terceira Island, Azores - NASA Earth Observatory
2022年6月21日 · The North American, Eurasian, and African plates meet to form the Azores triple junction— an uncommon type of plate boundary where three divergent ridges meet. (Most triple junctions involve a subduction zone where plates converge.)
49 the establishment of the EU-AF-NA triple junction south of the Azores occurred between 50 chrons C11- C12 (ca. 30 Ma) and C6c (ca. 24 Ma) and following the addition of Iberia to 51 Eurasia.
Tectonics of the Azores - Volcano World
Triple junctions can have any shapes but "T" or "Y" shapes are most common. Near the Azores the three plates meet to form a T-shaped triple junction. The Mid-Atlantic Ridge forms two legs of the "T". Searle showed that the third leg is the Azores spreading center.
The Azores triple junction evolution since 10 Ma from an …
1994年7月1日 · The triple junction (Azores-North America-Africa, or Eurasia-North America-Africa) moved northward from ∼ 38°00′N, 30°50′W to ∼ 38°20′N, 30°15′W (between 4 and 3A) and probably to 38°50′N, 30°00′W at anomaly 2A time. A …
Triple junction - Wikipedia
The Azores triple junction is a geologic triple junction where the boundaries of three tectonic plates intersect: the North American plate, the Eurasian plate and the African plate, R-R-R. [9] The Boso triple junction offshore of Japan is a T-T-T triple junction between the Okhotsk microplate, Pacific plate and Philippine Sea plate.
Tectonic pattern of the Azores spreading centre and triple junction
1980年12月1日 · The triple junction originates at the junction of the Mid-Atlantic Ridge with the East Azores fracture zone (A), and then migrates northward up the Mid-Atlantic Ridge producing two oblique-spreading arms, one of which is the Azores spreading centre.
junction south of the Azores occurred between chrons c6c (ca. 24 Ma) and c11-c12 (ca. 30 Ma) following the welding of Iberia to Eurasia. The location and northward motion of the Azores...
Chapter 2 The structure of the Azores Triple Junction: …
2015年9月16日 · To date, a lack of reliable morphological and geophysical data has been a major limitation to understanding the tectonic and magmatic processes that shape the Azores Triple Junction and the Terceira Rift.
The Azores triple junction evolution since 10 Ma from an …
1994年7月1日 · The Azores hotspot is located near a plate boundary triple junction (TJ) consisting of the Terceira Rift (TER) and two branches of the Mid‐Atlantic Ridge (MAR). The seafloor expression of the Azores …