Volcanism and Volcanic Landforms: A Guide to Physical Geology
Understand the forces shaping our planet by exploring types of volcanoes, intrusive and extrusive landforms, and modern hazard monitoring techniques.
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About this course
Course contents
5 modules · 28 lessons · 3h 1m
1
Foundations of Volcanism
Understand the basic terminology and the tectonic drivers of volcanic activity.
- Earth's Dynamic Interior
Earth is constantly reshaped by subterranean forces and heat.6 min - The Volcanologist's Dictionary
Mastering fundamental terms like magma, lava, and tephra.7 min - How Rocks Melt
The three ways magma forms: decompression, flux melting, and heat transfer.6 min - Why Magma Rises
The mechanics of buoyancy and pressure that drive magma toward the surface.7 min - Volcanoes and Plate Tectonics
How plate boundaries determine where most volcanoes are located globally.7 min - Hotspots: Intraplate Volcanism
Understanding volcanoes that form far from plate boundaries, like Hawaii.6 min
2
Magma Chemistry and Eruption Styles
Analyze how the chemical makeup of magma dictates the violence of an eruption.
- The Role of Silica
Magma composition is primarily defined by its silica content.7 min - Viscosity and Gas Content
How 'thickness' and trapped gases create explosive potential.6 min - Effusive Eruptions
Gentle lava flows typical of low-silica basaltic magma.6 min - Explosive Eruptions
Violent events driven by high-viscosity magma and gas pressure.7 min - The VEI Scale
Using the Volcanic Explosivity Index to categorize eruption magnitude.6 min
3
Extrusive Landforms
Identify the various structures formed by lava and debris on the Earth's surface.
- Shield Volcanoes
Broad, low-profile structures built by fluid basaltic flows.6 min - Stratovolcanoes
Iconic, steep-sided peaks formed by alternating layers of lava and ash.7 min - Cinder Cones
Small, simple volcanoes built from ejected rock fragments.6 min - Calderas
Large depressions formed by the collapse of a volcano's summit.7 min - Lava Domes
Mounds created by slow-moving, highly viscous lava.6 min - Fissures and Flood Basalts
Landforms created by massive eruptions from long cracks in the crust.6 min
4
Intrusive Landforms
Explore the geological features formed when magma cools and solidifies underground.
- Introduction to Plutons
Defining intrusive bodies that form beneath the surface.6 min - Dikes and Sills
Distinguishing between vertical and horizontal sheet-like intrusions.7 min - Laccoliths
Mushroom-shaped intrusions that arch the overlying rock layers.6 min - Batholiths and Stocks
Massive igneous bodies that form the cores of many mountain ranges.7 min - Exhumation
How erosion reveals intrusive landforms over millions of years.6 min
5
Hazards and Modern Monitoring
Learn about volcanic risks and the technology used to save lives today.
- Primary Hazards: Flows and Ash
The immediate dangers of lava flows and volcanic ash fall.7 min - Secondary Hazards: Lahars and Gases
Understanding mudflows and invisible toxic gas emissions.6 min - Remote Sensing: Thermal Imaging
Using infrared technology to detect heat changes in volcanoes.7 min - Satellite Monitoring: GPS and Gas
Tracking ground deformation and sulfur dioxide from space.7 min - Ground-Based Tools
The role of seismometers and tiltmeters in local monitoring.6 min - Risk Assessment and Mitigation
How geologists create hazard maps to protect communities.7 min
Volcanic Profile Project
Choose a famous volcano and create a comprehensive geological profile using the concepts learned in the course.
What you'll get
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Short & focused
3h 1m of practical content
Certificate of completion
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Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.
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