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The Hellenic Trench, with the inner South Aegean Volcanic Arc, and the outer non-volcanic Hellenic arc [1]: 34 . The Hellenic Trench (HT) is an oceanic trough located in the forearc of the Hellenic arc, an arcuate archipelago on the southern margin of the Aegean Sea plate, or Aegean Plate, also called Aegea, the basement of the Aegean Sea.
A combined diagram of the Aegean and Anatolian plates. The southern margin of the Hellenic arc is shown, which is the trend line of the faults separating the arc and the Hellenic Trench. The body of the arc is the chain called the outer Hellenides, which includes west Peloponnesus, Crete, Rhodes, southwestern Turkey, and all the islands between.
Calypso Deep is the deepest point in the Mediterranean Sea, located in the Hellenic Trench in the Ionian Sea, 62.6 km south-west of Pylos, Greece, with a maximum depth of approximately 5,200 m (17,100 ft). [1] It lies at about
Location of the Hellenic Subduction Zone and its surface features. The Hellenic subduction zone (HSZ) is the convergent boundary between the African plate and the Aegean Sea plate, where oceanic crust of the African continent is being subducted north–northeastwards beneath the Aegean.
The undersea cliff is incised by more than 500 canyons, while landslide occurrence has been inferred from sediment samples collected from the base of the escarpment.The 2012 research on the escarpment closest to Sicily identified 70 submarine landslides as well as black coral reefs, while a 2014 survey focused further south but still on the northern part of the escarpment, especially on the ...
To the south, the Hellenic Trench, as much as 4,000 m (13,000 ft) deep, borders the Hellenic arc, while to the north the Sea of Crete, a deep adjunct of the Aegean Sea, descends as deep as 1,000 m (3,300 ft). In contrast to these deep water environments, the coastal shelf of Crete is shallow and dotted with reefs, making it dangerous for ships.
It is postulated that crustal extension is related to a combination of factors: westward movement of the North Anatolian Fault, gravitational collapse of the thickened Hellenide orogenic crust, subduction, and slab roll back of the African Plate at the Hellenic trench.
The Hellenic orogeny is a collective noun referring to multiple mountain building events that shaped the topography of the southern margin of Eurasia into what is now Greece, the Aegean Sea and western Turkey, beginning in the Jurassic.