books.google.co.uk - This book, written by 33 stratigraphic experts, presents various processes available which will enable the location in time of all rock types: sedimentary, metamorphic, plutonic, and eruptive, whether they are in outcrop or at subsurface. The terminology and the appropriate practices for each method...http://books.google.co.uk/books/about/Stratigraphy.html?id=3hM2CkCYJbgC&utm_source=gb-gplus-shareStratigraphy
