USGS - science for a changing world

Science Topics

Maps, Imagery, and Publications Hazards Newsroom Education Jobs Partnerships Library About USGS Podcasts/RSS
You are here: Product types
Help
Terminologies and classifications
Collections of terms often including definitions or scope notes, with some stated relationships among terms
Subtopics:
Geologic time scales (7 items)
Results 11 - 20 of 25 listed alphabetically [list by similarity]
Geologic time online edition [More info]
Booklet giving general explanations of geologic time, major divisions of geologic time, relative and radiometric time scales, index fossils, and the age of the earth.
PDF Geologic time scale bookmark [More info]
This printable bookmark was designed for use with USGS activities at the 2nd USA Science and Engineering Festival, held April 26-29, 2012.
Geologic time scale chart [More info]
Chart of the geologic time scale with references.
Glossary of glacier terminology: a glossary providing the vocabulary necessary to understand the modern glacier environment. [More info]
An illustrated glossary of terms relating to modern glaciers and glacial landforms based mainly on Alaskan examples.
Glossary of terms in paleontology [More info]
Dictionary of terms associated with paleontology with brief definitions.
Glossary of water-use terminology [More info]
Dictionary of terms associated with water use from the publication: Estimated Use of water in the United States in 1990.
PDF How to Use the Marine Realms Information Bank (MRIB) Digital Libraries [More info]
A step-by-step guide to conducting topical, geographic, and keyword searches of MRIB; viewing and refining search results; and exporting the results in several formats.
Hydrologic unit maps [More info]
Overview of hydrologic unit maps adapted from USGS Water-Supply Paper 2294 giving description of hydrologic units, link to list of hydrologic units, paper maps and digital spatial data sets.
Improving access to metadata using keywords from controlled vocabularies [More info]
Description of the use of Place Keyword Assistant, a software tool, for tagging metadata with geographic names from standardized lists or controlled vocabularies. Includes instructions on use and downloading software files.
National Geologic Map Database Geologic Names Lexicon GEOLEX [More info]
Search tool for locating lithologic and geochronologic unit names for geologic studies.
Result pages:Previous 1 2 3 NextAll
Alphabetical Index of Topics a b c d e f g h i j k l m n o p q r s t u v w x y z

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.usgs.gov/science//science/science.php?term=1744&order=alpha&b=10&n=10
Page Contact Information: Ask USGS