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Volcanoes • Mountain composed of EXTRUSIVE IGNEOUS ROCKS EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: – GASES & LAVA GASES & LAVA escape onto EARTH’S SURFACE or ATMOSPHERE -Exit through opening or vent of a volcano VOLCANO WORLD

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Page 1: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

Volcanoes• Mountain composed of EXTRUSIVE IGNEOUS ROCKSEXTRUSIVE IGNEOUS ROCKS

DURING ERUPTION: –GASES & LAVAGASES & LAVA escape onto EARTH’S SURFACE or ATMOSPHERE -Exit through opening or vent of a volcano

VOLCANO WORLD

http://volcano.und.nodak.edu/
Page 2: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

Olympus MonsOlympus Mons

Page 3: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

Rock Features FormedINTRUSIONSINTRUSIONS• Intrusive Igneous rocks from MAGMA• Stays within the LITHOSPHERE

IntrusionIntrusion

Page 4: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

EXTRUSIONSEXTRUSIONS• Extrusive Igneous rock from LAVA• LAVA FLOWS occur

TEMPERATURES: 1000oC

Page 5: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

3 Main types of Volcanoes

CINDER-CONECINDER-CONE • STEEP, SMALL, Composed of

Volcanic ASH

COMPOSITE-CONECOMPOSITE-CONE –STEEP, LARGE Composed of LAVA & Volcanic ASH

Page 6: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

BEFORE

AFTER

Page 7: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

SHIELD VOLCANOSHIELD VOLCANO•GENTLE slope composed of Volcanic LAVA

Page 8: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

DANGERS of ERUPTION

• Mudslides & Flooding

GAS RELEASE: -Sulfur, Chlorine, & CO2

• Volcanic ASH BLOCKING Sun’s Ray

(COOLING of Earth)

Page 9: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

Mount Vesuvius Victims

79 AD

Page 10: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

Predicting Volcanic Eruptions

SATELLITESSATELLITES: -Report on increasing HEATHEAT from magma

TILT METERS:TILT METERS: -Increased SLOPESLOPE as volcano INFLATESINFLATES with

magma

Monitor INCREASESINCREASES in 1) Elevation 2) Width 3) Number of EARTHQUAKES

Page 11: Volcanoes Mountain composed of EXTRUSIVE IGNEOUS ROCKS DURING ERUPTION: GASES & LAVA –GASES & LAVA escape onto EARTH ’ S SURFACE or ATMOSPHERE -Exit through

State the most likely affect the ASH CLOUD had on April 25, 1982


Igneous Rocks From lava or magma Can be either extrusive (formed on Earth’s surface, from lava) Or intrusive (formed inside of the Earth’s surface, from

Volcanism and Extrusive Rocks. Volcanism and Earth’s Systems Atmosphere originally created from gases released by magmas Hydrosphere produced by condensation

Parts of a volcano Magma chamber Neck ◦ Vent/crater Cone/ash/lava flow Tephra/SO 2 /gases

Chapter Four Volcanism and Extrusive Rocks. VOLCANOES AND VOLCANISMS VOLCANO: LANDFORM THAT RESULTS FROM THE ACCUMULATION OF LAVA AND ROCK PARTICLES AROUND

DEFINITION - A volcano is an opening in Earth that erupts gases, ash, and lava. Volcanic mountains form when layers of lava, ash, and other material

Rocks. Igneous Rock Origin: Magma from within the Earth cools to form igneous rock. Extrusive: Magma that reaches the surface, becomes lava and cools

3 Major Groups of Rocks · Igneous rock Intrusive rock Magma Lava Small Crystals Extrusive Rock Large Crystals Inside Earth At or near surface Coarse-grained Fine Grained Cools fast

Intrusive extrusive

Volcanic Landforms Processes and Hazards. Volcanic Landforms 1.Intrusive Igneous Forms 2.Extrusive – Basalt Landforms 3.Extrusive – Composite volcanoes

EXTRUSIVE VOLCANIC LANDFORMS

FELSIC ROCKS: texture Intrusive Extrusive Muy extrusive GraniteRhyoliteObsidian

Volcanoes. What are volcanoes? A volcano is an opening in Earth that erupts gases, ash, and lava

Rocks Pieces of the Earth’s crust.. Types of Rocks Igneous- Rocks that formed from the fiery depths of the Earth. They form from magma and lava. –Extrusive

impacts of extrusive igneous activity

Volcanoes By Natassia Katsavos *Volcanoes* A volcano is an opening in Earth’s crust through which molten lava, ash and gases erupt. In many cases, lava

Volcanoes Here we will compare extrusive and intrusive volcanic features and action q distinguish magma from lava q identify intrusive and extrusive igneous

When lava flows and pyroclastic deposits exhibit sufficient porosity and permeability, extrusive igneous rocks have the potential to host large hydrocarbon

Wk 3 F Igneous I - School of Ocean and Earth Science and ...€¦ · Igneous rock‐forming environments Igneous Rocks (two categories) Extrusive Lava and PyroclasticDebris Extruded

Volcanoes. What is a volcano? An opening in the Earth that erupts gases, ash, and lava.

Rise To Surface LAVA Outgassing CO 2, H 2 O, SO X Cooling / Crystals form Extrusive Igneous Rocks Weathering Sediments build up/layers Chemical Erosion

Rocks - cpb-us-e1.wpmucdn.com€¦ · IGNEOUS ROCKS •Form by solidification (crystallization) of melted minerals •At the surface, LAVA hardens to form EXTRUSIVE rocks with tiny

Igneous Processes Extrusive Igneous Formations Volcanoes Openings in the Earth that erupt gases, ash, & lava. Lava flows destroy everything in their

1 Extrusive Igneous Rocks, Part 2 RHYOLITES, LATITE, TRACHYTE AND GLASSY EXTRUSIVE ROCKS

Igneous rock Intrusive rock Magma Lava Extrusive Rock Small Crystals Large Crystals Inside Earth At or near surface Fine Grained Coarse-grained Cools fast

Rocks & Minerals - Ms. Sulik's Teacher page...Intrusive –rocks made by the freezing of magma underground. Extrusive –rocks that form above ground, after lava spills out and extrudes

08 volcanism intrusive and extrusive features

Igneous Rock Forms when molten rock (magma/lava) cools and hardens Cools slowly beneath Earth’s surface = intrusive Cools rapidly on the surface = extrusive

Igneous Rocks – Lava Textures Lava is an EXTRUSIVE form of Igneous Activity It represents molten rock that has been erupted or extruded onto the earth’s

3.5 Ignous (Instrusive & Extrusive)

Rocks and the Rock Cycle. Lets Review!! Grains Grains Texture Texture Extrusive Extrusive Intrusive Intrusive Porphyritic Porphyritic Sediment Sediment

1996 GEOGRAPHY PAPER 1 MARKING SCHEME · 1996 GEOGRAPHY PAPER 1 MARKING SCHEME: SECTION A: 1. a) Two features resulting from extrusive volcanic activity Composite volcano Lava plateau/lava

Extrusive igneous activity

Rise To Surface LAVA Outgassing CO 2, H 2 O, SO X Cooling / X-tallization Extrusive Igneous Rocks Weathering Physical Chemical Erosion & Deposition Burial

IGNEOUS ROCKS. Igneous Rocks Originate in Lava and Magma §Extrusive igneous rocks can be in the form of: lava flows ash §Intrusive rocks can be:

api.ning.comapi.ning.com/files/KxrfRUJOzVPYy*fCpd-WizDK1... · Web viewactivity in relation to types of plate margin and types of lava. Minor forms of extrusive activity – geysers,