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Geology
Geomorphology, Hydrogeology
Historical Geology, Paleontology
Structural Geology
Mineralogy, Petrology
Engineering Geology
Environmental Geology
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Geology Reference Sources
Geology Dictionary
GeoTech.org Dictionary of Geologic Terms.
Geologic Time Scale
Geologic Time Scale provided by the US Geologic Survey.
Wikipedia
Definitions, history, and an essay on the fields of study in Geology.
Geology Databases
GeoRefS
Database of North American geology literature from 1785 -- present, international literature from 1933 -- present. Available from anywhere in the world to Bucknell students, faculty, and staff.
GeoRef Preview Database
New, unedited references from the American Geological Institute database.
MINABS Online
Mineralogical Abstracts
GEOBASE
Worldwide literature on geology, geography, and ecology, 1980 -- present. Available from anywhere in the world to Bucknell students, faculty, and staff.
Web of Knowledge
Web of Knowledge includes the Science Citation Index from 1900 -- present.
Geology Web Resources
USGS Geology
Publications and data provided by the US Geological Survey.
Digital Library for Earth System Education
Links to news and educational resources for Earth Sciences educators.
National Academy
Earth Sciences web resources from the National Academy of Science.
Science.gov
Earth and Ocean Sciences links and federal government documents online.
GEOSOURCE
Web resources for human geography, physical geography, planning, geoscience and environmental science.
Theory of the Earth
James Hutton's historic 1788 essay.
ISR Catalog

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Electronic Geology Journals
Electronic Geology Journals
Journals available online to Bucknell faculty, staff, and students.
Geology Organizations
US Geological Survey
US government agency involved in all aspects of earth sciences. Includes many USGS reports and publications online.
Geological Society of America
The national society for geology research, conferences, publications.
GSA Northeast Section
Includes Bucknell student chapter.
Pennsylvania Geological Survey
The state agency involved in earth sciences study and research in Pennsylvania.
American Geological Institute
Organization that supports and publishes earth sciences research.