Slide 1Volcanoes Chapter 7 Slide 2 Volcanoes of the World Slide 3 Slide 4 Relationships of Volcanic Activity to Plate Tectonics Slide 5 Fissure Eruption : Cracks through…

Slide 16GEO4 Unit 4 Tectonic Activity and Hazards Slide 2 What is this option about? The Tectonic Activity and Hazards option focuses on the range of natural hazards generated…

Topic 3 â Igneous Rocks Topic 3 - Igneous Rocks Outline Introduction Magma and Lava Texture Composition Bowens Reaction Series Changes in Magma Composition Igneous Rock…

Vol.18, No. 4, Winter 1389/2011 Pages 89 to 100 Chemical composition of biotite as a guide to petrogenesis of granitic rocks from Maherabad, Dehnow, Gheshlagh, Khajehmourad…

Slide 1 Unit 6-3: Types of Volcanoes Slide 2 What is a volcano? A volcano is a spot in the Earth’s crust where magma can reach the surface.  It is named from the Roman…

Slide 1 Magmas & Igneous Rocks Associate Professor John Worden DEC University of Southern Qld Slide 2 Magma & Igneous Rocks vAn Igneous rock is a “crystalline or…

Slide 1 Igneous Rocks Igneous Rocks Chapters 3 & 4 Arcadia Nat’l Park, Maine Slide 2 How do Igneous Rocks form? What is Magma? What is Lava? How do they form? What…

Slide 1 Chp 3 Igneous Rocks Igneous Rocks-derived from volcanic processes -volcanoes -submarine and sub-aerial Derived from magma chambers deep beneath the surface of the…

Lithospheric Plate Structure Lithosphere (or plate) = crust + uppermost, rigid part of the mantle  Asthenosphere Low-velocity zone in the upper mantle at a depth of ~100-200…

Volcanic Activity Chapter 18.1 Magma Magma is a mixture of molten rock, minerals and gasses. Magma forms when rock melts at 800°C to 1200°C Molten Core with Magma plumes…