Ocean cold as water at greater depths. Below the thermocline, water is very cold, ranging from −1 °C to 3 °C. Because this deep and cold layer contains the bulk of ocean water, the average temperature of the world ocean is 3.9 °C. If a zone undergoes dramatic changes in salinity with depth, it contains a halocline. If a zone undergoes a strong, vertical chemistry gradient with depth, it contains a chemocline. The halocline often coincides with the thermocline, and the combination produces a pronounced pycnocline. The deepest point in the ocean is the Mariana Trench, located in the Pacific Ocean
The Deepest End, Live in Concert in 2000. The release also marked the first Gov't Mule CD to feature keyboardist Danny Louis as a full-time member. This album is one of the 10 best "live jam releases of this century" according to the August 2006 issue of Guitar One magazine. The Deepest End, Live in Concert The Deepest End, Live in Concert is a two CD live album and DVD video by Gov't Mule, released on October 7, 2003. It was recorded in New Orleans on May 3, 2003. In 2003, after recording The Deep End, Volume 1 (2001) and Volume 2 (2002), Gov't Mule gathered