Θ Reference: Dictionaries: By_Subject: Science: Geology

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Dictionary of Petroleum and Oilfield Terminology Glossary of terms. The list is searchable and also contains links to further information.
GeologyLink Glossary Indexed glossary of geology terms.
Glacier Glossary An A-to-Z glossary of glacier terms written by the professor and students of an NEIU glaciology class.
Glossary of Selected Geologic Terms Glossary of selected geological terms from the University of Nebraska-Lincoln.
Earthquake Image Glossary Heavily illustrated glossary of common terms in seismology.
USGS Photo Glossary of Volcanic Terms Illustrates and describes commonly used volcano-related terms.
Volcanic and Geologic Terms Glossary Common terms defined.
Schlumberger Oilfield Glossary Defines many terms related to oil and gas exploration and production. Includes illustrations.
Geology Dictionary - Geology.com Definitions of terms, written at a level appropriate for students in introductory courses.