Alluvial Fan Flooding (1996) - This book is edited by the Commission on Geosciences, Environment and Resources (CGER) and published by the National Academies Press. It deals with alluvial fans that are known as gently sloping, fan-shaped landforms created over time by deposition of ero - http://www.nap.edu/books/0309055423/html/index.html
North American stratigraphic code (2005) - A reference book published under the aegis of the North American Commission on Stratigraphic Nomenclature. - http://ngmdb.usgs.gov/Info/NACSN/Code2/code2.html
Principles of Geology, by Charles Lyell 1830 - Electronic facsimile of one of the founding book of the geological sciences, made available by Electronic Scholarly Publishing - http://www.esp.org/books/lyell/principles/facsimile/
International Stratigraphic Guide - The second edition of the International Stratigraphic Guide, edited by Amos Salvador, was prepared by the International Subcommission on Stratigraphic Classification of the International Commission on Stratigraphy and co-published in 1994 by the Internati - http://www.stratigraphy.org/guide.htm
Bedform Sedimentology Studies - Information about ripples, dunes, and sedimentary structures including, explanatory text, computer-generated images and movies, photographs, and bedform-simulation software provided by the USGS. - http://walrus.wr.usgs.gov/seds/
Schlumberger Oilfield Glossary - With more than 4600 entries it constitutes an instant technical reference for both the generalist and the expert oil geologist - http://www.glossary.oilfield.slb.com/
Petrology of sedimentary rocks - Although long out of print, the seminal book (a total of 182 pages in a single pdf file) by R.L. Folk (1974) remains an excellent resource if you are interested in sedimentary rocks. - http://www.lib.utexas.edu/geo/folkready/
Low–temperature formation of Dolomite and Magnesite - Latest version (2005) of the open-access e-book authored by J.C. Deelman on dolomitization and related phenomena. A total of 505 text pages, including a number of graphs, drawings and photographs. - http://www.jcdeelman.demon.nl/dolomite/bookprospectus.html