GEOLOGY

Detailed explanation-1: -The densest deep water mass is formed in the Weddell Sea of Antarctica, and becomes the Antarctic Bottom Water (AABW). Similar processes in the North Atlantic produce the North Atlantic Deep Water (NADW) in the Greenland Sea (Figure 9.8. 1). Figure 9.8.

Detailed explanation-2: -Such areas as the Weddell Sea in Antarctica produce the densest water of the oceans. This water, known as Antarctic Bottom Water, sinks to the deepest depths of the oceans.

Detailed explanation-3: -So, the density of ocean water increases and increases as you go to the bottom of the ocean. The deep ocean is layered with the densest water on bottom and the lightest water on top. Circulation in the depths of the ocean is horizontal.

Detailed explanation-4: -Antarctic bottom water (AABW) is the densest global-scale water mass. It is produced around Antarctica, sinks along the Antarctic continental slope and spreads northward to fill most of the ocean deeper than 4 km (Orsi et al., 1999).

Detailed explanation-5: -Even in the Challenger Deep (the deepest ocean trench at almost 11 km), water is compressed by less than 5%, so its density would be only about 1.1 g/cm.