volcanoes2 - Unregistered iclickers 1184F065 1D132826...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Unregistered iclickers 1184F065 1D132826 1EC111CE 15AC2B92 1DB0AA07 6A353F6 168064F2 1EE8E412 6AF5FF6 1769CCB2 1EF0C927 7BBC874 19634B31 1EFAC420 19881A8B 1F46376E 1AA13388 627E3C2 You must register to get the extra credit! First Exam Thursday, February 4 Topics 1-5 Volcanism Most volcanoes are associated with plate boundaries Regions of volcanic activity 1. Mid-ocean ridges (primarily submarine volcanism; Iceland is a subaerial mid-ocean ridge volcano) 2. Hot spots (i.e. Hawaiian Islands) 3. Island Arcs (i.e. Philippines, Japan) 4. Continents (i.e. Pacific Northwest of U.S.) Mid-Ocean Ridge Volcanism 1. Associated with divergent plate boundaries 2. Primarily submarine extrusion of magma; several locations where the mid-ocean ridge is above sea level (i.e. Iceland) 3. Produce mafic rocks (basalts and gabbros) Sea floor pillow basalts Mid-Ocean Ridge Volcanism Pillow Basalts Iceland Iceland Helmaey 1973 Hot Spot Volcanism 1. Not associated with plate boundaries (i.e. Hawaiian Islands) 2. Primarily basaltic lava flows 3. Eruptions are usually not explosive Hot Spot Volcano Tracks Hawaiian Lava Flow...
View Full Document

Page1 / 86

volcanoes2 - Unregistered iclickers 1184F065 1D132826...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online