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🪨 Geology

Geology memory tricks that make earth science stick

Minerals, rocks, plate tectonics, geologic time and more — choose your topic below.

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Geology Study Room
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Or continue to the sub-topics below for more specialized Chats and Forums
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Minerals
Identification, properties, crystal systems, MOHS scale
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Rocks
Igneous, sedimentary, metamorphic — formation and identification
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Geologic Time
Eons, eras, periods, epochs — the geologic time scale
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Plate Tectonics
Boundaries, movements, earthquakes, volcanoes
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Earth Structure
Crust, mantle, core — layers and composition
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Stratigraphy
Rock layers, principles of stratigraphy, relative dating
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Hydrology
Water cycle, surface water, watersheds, streamflow
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Hydrogeology
Groundwater, aquifers, wells, hydraulic conductivity
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📚 Official Resources
🏛️ USGS — US Geological Survey
The nation's largest earth science and civilian mapping agency.
usgs.gov →
AGI — American Geosciences Institute
Provides information services to geoscientists and the public about Earth sciences.
americangeosciences.org →
GSA — Geological Society of America
Scientific society that advances geoscience research and education.
geosociety.org →
IRIS Seismology
Incorporated Research Institutions for Seismology — earthquake and geology resources.
iris.edu →
NOAA Earth Sciences
National Oceanic and Atmospheric Administration — earth and climate resources.
noaa.gov →
Mindat.org
The world's largest open database of minerals, rocks and meteorites.
mindat.org →