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Geologic history
Record (and inferred reconstruction) of the origin and development of the earth since its formation.
Subtopics:
Biostratigraphy (9 items)
Earth history (3 items)
Lithostratigraphy (2 items)
Related topics:
Results 1 - 10 of 33 listed by similarity [list alphabetically]
Geologic history of Cape Cod, Massachusetts [New Window]
Describes the history, geologic changes (including the glacial formation and sea level changes), and geologic mapping of Cape Cod, Massachusetts.
Geologic history of Long Valley Caldera and the Mono-Inyo Craters volcanic chain, California [New Window]
Summarizes the geologic and volcanic activity of the Long Valley Caldera and Mono-Inyo Craters volcanic chain in east central California.
Compilation of various geologic time scales [New Window]
Preliminary report comparing various geologic time scales. Text is HTML or plain text format, and colored compilation chart in Excel format.
Geologic glossary for National Parks [New Window]
Geologic glossary containing simplified definitions for technical terms used within the USGS/National Park Service website on national parks.
Geologic mapping in National Parks: National Park Service Support Project [New Window]
Summaries of geologic projects in cooperation with the National Park Service including Grand Canyon National Park, Lake Mead National Recreation Area, Golden Gate National Recreation Area, Joshua Tree National Park, Yosemite National Park, and others.
Geologic time online edition [New Window]
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.
Geologic time scale chart [New Window]
Chart of the geologic time scale with references.
National Cooperative Geologic Mapping Program [New Window]
Homepage linking to National Cooperative Geologic Mapping Program (NCGMP) components: FEDMAP for federal mapping projects, STATEMAP for state geological survey projects, and EDMAP for geologic mapping education projects.
National Geologic Map Database Catalog [New Window]
Search tool for locating print and online U.S. geologic maps by area, title, author, etc.
National Geologic Map Database Geologic Names Lexicon GEOLEX [New Window]
Search tool for locating lithologic and geochronologic unit names for geologic studies.
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