Geosc 20 Classnotes
Lecture 1 -- Dinosaur Extinction
Lecture 2 -- Earth Materials
Lecture 3 -- Silicate Minerals
Lecture 4 -- Origin of the Universe
Lecture 5 -- Evolution of the Solar System
Lecture 6 -- Evolution of Life
Lecture 7 -- The Earth's Interior and Internal Heat
Lecture 8 -- Igneous Rocks
Lecture 09 -- How Rocks Weather
Lecture 10 -- Mass Wasting
Lecture 11 -- First Mid-semester Exam
Lecture 12 -- Stream Erosion
Lecture 13 -- Changing Shorelines
Lecture 14 -- Glaciers: Periods of Cold Weather
Lecture 15 -- Formation of Sedimentary Rocks
Lecture 16 -- The Penn State Obelisk
Lecture 17 -- Global Warming
Lecture 18 -- Groundwater
Lecture 19 -- Petroleum and Natural Gas
Lecture 20 -- Minerals as Economic Resources
Lecture 21 -- Philosophy of Science and Geological History
Lecture 22 -- Second Mid-semester Exam
Lecture 23 -- How rocks deform: Metamorphism
Lecture 24 -- Volcanoes
Lecture 25 -- Earth Structures
Lecture 26 -- Rock Magnetism and Sea Floor Spreading
Lecture 27 -- Continental Drift
Lecture 28 -- Plate Tectonics
Lecture 29 -- Earthquakes
Lecture 30 -- Mountains of Pennsylvania
Geological Column and Time Scale