OCE 2001 Lecture Notes - Lecture 2: Submarine Canyon, Continental Shelf, Hydrosphere
Document Summary
Pressure increases but the increase of temp causes about 1% of the rocks to melt, creating a relatively plastic layer. Increased pressure that counteracts the increased temp. causes the material to become more rigid. Most dense, composed of water (oceans, lakes, groundwater, etc. ) 97% of surface water is oceans but oceans only represent 10% of the total water on earth, most is locked in mineral form. Comprised of a mixture of gases, less dense. They are the same, but the ocean has a few unique qualities. Continental shelf until the shelf break, continental slope with a submarine canyon, and the continental rise. Shallow part of the ocean (130-200 m deep) Where the sea bottom steepens and the shelf ends. After the shelf break, 4 degree incline (2-3 km deep). Accumulation of eroded sand and mud at the base of the slope. After the continental slope"s base, incline decreases to about 1% (4 km deep)
