Operated by the Hawaiian Volcano Observatory, USGS. This database "contains over 13,000 references" and is intended "to contain all of the literature, from 1779 to present, pertinent to the volcanological history of the Hawaiian-Emperor volcanic chain." Note: Files must be downloaded.
Provides "access to over 300,000 book, map, and serial records in the U.S. Geological Survey online catalog." The USGS also offers an online ASK-A-LIBRARIAN reference service.
Geology field trip guides for geology field trips are great resources that are often difficult to locate. While some field trip guides are online, many are only available in print through geologic surveys or as part of a conference. If you are looking for a specific survey, try searching by survey name.
For conference field trips, search by organization and year of the conference. (Examples include: the Geological Society of America; National Association of Geology Teachers; or the American Association of Stratigraphic Palynologists.)
Can't find what you are looking for? Ask a librarian!