1. • Tephra (Greek, for ash) is a generic term for any airbornepyroclastic accumulation.• Individual eruptive fragments are called pyroclasts ("firefragments").…

1. Volcanoes Ana lamarca. Joan rof. 6è de primària. 2. Eruption In1883, in Indonesia, a volcano called Krakatoa erupted at first. 3. The live of a volcano. Themagmaare…

1.Ch. 3 Sec. 3Volcanic eruptions2. Pele's hair Thin strands of volcanic glass drawn out from molten lava have long been called Pele's hair, named for Pele, the…

1. VOLCANOES 2. What is it a volcano? A volcano is like a chimney in the Earth’s crust (surface) where magma flows out. 3. Eruption In 1883, in Indonesia, a volcano called…

1. Thursday, August 18thWrite Down Homework Take out HW (mineral search) 2. Table of Contents Date: 8/18Section: MineralsTitle:Minerals in the House Pages3 3. Mineral…

1. Hawaiian Islands Teprha 2. Source for photos and explantions on the web http://volcanoes.usgs.gov/Products/Pglossary/pglossary.html 3. Plinian Eruption Column 4. TEPHRA:Any…

Slide 1 Slide 2  Parts of a volcano  Magma chamber  Neck ◦ Vent/crater  Cone/ash/lava flow  Tephra/SO 2 /gases Slide 3  Steep sided cone  Explosive…

Pyroxene group public domain Pyroxene is found in extrusive igneous rocks. dacite USGS basalt USGS andesite Pyroxene is found in intrusive igneous rocks. diorite granodiorite…

Erta Ale (map of Ethiopia volcanoes): http://bigthink.com/ideas/23262m (USGS map, so open access) Erta Ale, overflowing in 2010: http://www.volcanodiscovery.com/view_news/1716/Erta-Ale-volcano-Ethiopia-unusually-high-level-of-lava-lake.html…

1. Thursday, August 18thWrite Down Homework Take out HW (mineral search) 2. Table of Contents Date: 8/18Section: MineralsTitle:Minerals in the House Pages3 3. Mineral…