Use broader keywords. Use different keywords. To use the thesaurus, click on the button found in the right hand column of the search screen. Authors Authors of journal articles, book chapters and conference papers are in the AU field , authors and editors of books are in the BA field , and authors of collections are in the CL field . The GeoRef database includes records for the abstracts of papers presented at Geological Society of America and American Geophysical Union meetings.
Many advanced techniques restrict searching to a specific field or section of the record.
To find stratigraphy papers use both the systematic and the common fossil names and combine them with the term biostratigraphy . To narrow a search, try searching fossils in the descriptor field . Geologic Age Search for rock units using all common variants of the name. When searching for broad age terms, subdivisions can be ignored. To narrow a search, try searching age terms in the descriptor field .