Metamorphic Rocksgreenspun.com : LUSENET : Introductory Geology, Oswego State : One Thread
Waht type of metaporphism occurs along mid-ocean ridges?
-- Shannon Davis (firstname.lastname@example.org), March 27, 2001
Contact metamorphism occurs along mid-ocean ridges. Contact metamorphism affects rocks near or in contact with an igneous intrusion. You don't need pressure,just temperature. Remember a mid -ocean ridge takes place at divergent boundaries, where the sea floor is spreading apart and magma rises(igneous intrusion). Regional metamorphism takes place over large areas with high pressure and temperatures. See page 57,58, & 173 in our text, it shows other ways to have contact metamorphism occur. Also, look on page 62 or 77, the text shows a picture of mid-ocean ridges with magma rising.
-- Sandra Feocco (email@example.com), March 27, 2001.