ER 125
Colby College
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Class notes
Geology Study Guide: Earth Structure, Minerals, Volcanoes, Sediments & Planetary Geology
Newnotes: 
 
 
 
These geology notes cover the entire first half of an introductory Geology/Earth Science course. Perfect for midterms, finals, weekly quizzes, or fast revision. 
 
This document includes clear, organized, and concise explanations of all major topics, including: 
	•	Interior of the Earth: layers, seismic waves, density, differentiation 
	•	Minerals & Rocks: mineral criteria, silicates, igneous/sedimentary/metamorphic rocks 
	•	Dating Methods: isotopes, half-life, radiometric d...