Mud metamorphismgreenspun.com : LUSENET : Introductory Geology, Oswego State : One Thread
Does all shale come as a result of mud? Can mud form different kinds of rocks than just shale alone?
-- Ellen Hanley (email@example.com), March 27, 2001
When mud sediments form rocks, the rocks are called mudstone or shale. Both are fine-grained rock. Mudstone shows poor bedding or none at all. Shale is made of silt and clay and breaks along bedding planes. Look in chapter 7 of the text book (pg 159).
-- Angelique Chambers (firstname.lastname@example.org), March 31, 2001.