Oceanic trench the level of the surrounding oceanic floor. The greatest ocean depth measured is in the Challenger Deep of the Mariana Trench, at a depth of below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km/yr. There are approximately of convergent plate margins, mostly around the Pacific Ocean—the reason for the reference “Pacific-type” margin—but they are also in the eastern Indian Ocean, with relatively short convergent margin segments in the Atlantic Ocean and in the Mediterranean Sea. Globally, there are over 50 major ocean trenches covering an area of 1.9 million km or about 0.5%
The Trench (comics) The Trench (comics) The Trench is the name applied to both a fictional kingdom, and its inhabitants as a group, that escaped the destruction of Atlantis in DC comics. The Trench first appeared in "Aquaman" (vol. 7) #1 (Nov. 2011) and were created by Geoff Johns. In September 2011, The New 52 had rebooted DC's continuity. Johns introduced the Trench into this new timeline, making them antagonists in the Aquaman series. In their first appearance, the Trench are seen attacking a town and killing, eating, and destroying many of the inhabitants. It is revealed that the Trench had been inhabitants