Bituminous rocks

From Wikipedia, the free encyclopedia

Bituminous rocks are sedimentary rocks, usually shale, sandstone, limestone or dolostone/dolomite, that contain traces of tar, bitumen, asphalt, petroleum or carbon. For example anthraconite is a bituminous form of limestone, calcite or marble. Also can be known as "carbonaceous rocks". See sedimentary organic matter.

This article does not cite any references or sources. (January 2008) Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed.