Explore the fascinating world of igneous rocks in this comprehensive 44-minute lecture. Delve into the rock cycle, understanding magma as the parent material of igneous formations. Distinguish between extrusive and intrusive igneous rocks, and learn to identify various igneous textures including fine-grained, coarse-grained, porphyritic, glassy, vesicular, and pyroclastic. Discover the classification and naming conventions for igneous rocks, with a focus on granite formation. Investigate the origin of magma and intrusive igneous activity. Enhance your knowledge with additional resources from the USGS and National Park Service for a well-rounded understanding of igneous rock formation and characteristics.
Overview
Syllabus
Intro
The Rock Cycle
Magma: Parent Material of Igneous Rock
Extrusive Versus Intrusive Igneous Rocks
Igneous Textures: What Can They Tell Us?
Fine-Grained (aphanitic) Igneous Texture
Coarse-Grained (Phaneritic) Texture
Porphyritic Igneous Texture
Glassy Igneous Texture
Vesicular Igneous Texture
Pyroclastic Igneous Texture
Classification of Igneous Rock
Naming Igneous Rocks
Granite Formation
Origin of Magma
Intrusive Igneous Activity
Taught by
Sven Holbik
