GY 111 Lecture test preparation Quiz Four 9 30 9 35 AM Word List for Lecture Test 1 GY 111 Word Concept List For Lecture Test One 2007 Be familiar with these 30 terms multiple terms and or concepts You will see some of them in the definition and compare and contrast components of the up coming Lecture test They are not the only things that you are responsible for on the exam Multiple answer fill in the blanks and essay questions will require comprehensive study of your lecture notes and web lecture notes Use of a text book hardcopy or electronic during studying is not required but may prove valuable for some students Word List for Lecture Test 1 magma lava crust mantle core inner and outer convergent divergent transform plate boundaries island arc Paleomagnetism lithosphere asthenosphere subduction protons neutrons electrons atomic number atomic weight cations anions polymorph Rocks Minerals rock cycle extrusive volcanic rocks intrusive plutonic rocks pyroclastic igneous rocks hotspot pluton isotherm active extinct dormant volcano viscosity cinder cone composite shield volcano pyroclastic caldera nue ardent mineral classes lahar fractionation dike sill bonding metallic ionic covalent hydrogen Word List for Lecture Test 1 Word List for Lecture Test 1 GY 111 Word Concept List For Lecture Test One 2010 Be familiar with these 30 terms multiple terms and or concepts You will see some of them in the definition and compare and contrast components of the up coming Lecture test They are not the only things that you are responsible for on the exam Multiple answer fill in the blanks and essay questions will require comprehensive study of your lecture notes and web lecture notes Use of a text book hardcopy or electronic during studying is not required but may prove valuable for some students GY 111 Word Concept List For Lecture Test One 2010 Be familiar with these 30 terms multiple terms and or concepts You will see some of them in the definition and compare and contrast components of the up coming Lecture test They are not the only things that you are responsible for on the exam Multiple answer fill in the blanks and essay questions will require comprehensive study of your lecture notes and web lecture notes Use of a text book hardcopy or electronic during studying is not required but may prove valuable for some students 1 Word List for Lecture Test 1 GY 111 Essay Question For Lecture Test One 2010 In addition to this word list I present you with one of the 3 essay questions that will appear on Lecture test 1 1 There are a lot of different silicate mineral subclasses What are they how do they differ and why are they so prevalent in the earth s crust Use sketches to augment your answer UNIVERSITY OF SOUTH ALABAMA GY 111 Physical Geology Lecture 8 Crystallization of Magma Last time we covered Volcanic Landforms Dikes sills necks pipes Volcanic Case Studies pyroclastic nu e ardent Lahar 3 Volcanic Activity extinct dormant active 1 2 Volcanic Eruptions Case Studies 1 Kilauea Hawaii Volcanic Eruptions Case Studies Volcanic Eruptions Case Studies 2 Lake Nyos Africa 3 Mt Pel e Martinique 2 Lahars Volcanic Activity Three states of activity are recognized 1 Active the volcano is either erupting now or there is a historical record of it erupting in the past e g Mt Lahar Water charged mudflows composed of volcanic ash It is not hot and may flow months after a volcanic eruption Commonly occur following heavy monsoonal rains or through the melting of glacial ice on tall composite volcanoes Vesuvius in Italy http homepage2 nifty com munesuke pinatubo 1992 lahar bacolor jpg 2 Dormant no record of recent activity i e no historical observations but the volcano looks fresh and may show some signs of thermal activity e g Mt Shasta California 3 Extinct it may be a volcano but it is badly eroded tree encrusted and shows no signs of thermal activity e g Diamondhead Oahu Hawaii Today s Agenda Mt Unzen 1993 Mt Pinatubo 1992 Today s Agenda 1 The chemical composition of the crust 2 Crystallization of molten rock 3 Bowen s Reaction Series Web notes 8 Chemical Composition of the Crust Chemical Composition of the Crust 3 Chemical Composition of the Crust Element Oxygen Chemical Composition of the Crust Wt of atoms Wt of atoms 46 6 60 5 Oxygen Element 46 6 60 5 27 7 20 5 Silicon 27 7 20 5 Silicon Aluminum 8 1 6 2 Aluminum 8 1 6 2 Iron 5 0 1 9 Iron 5 0 1 9 Calcium 3 6 1 9 Calcium 3 6 1 9 Sodium 2 8 2 5 Sodium 2 8 2 5 1 8 Potassium 2 6 1 8 2 1 1 4 1 5 3 3 Potassium 2 6 Magnesium 2 1 1 4 Magnesium All other elements 1 5 3 3 All other elements SiO2 Bowen s Reaction Series Chalk board Igneous Rock Composition Source http hyperphysics phy astr gsu edu Chalk Board Source http www ltcconline net julian Igneous Rock Composition Igneous Rock Texture Source http hyperphysics phy astr gsu edu Composition Formation Temperature Dominant Minerals Silica content Ultramafic Very high Olivine pyroxene Very low 45 Mafic High Olivine pyroxene Ca plagioclase low Intermediate Medium Na Plagioclase amphibole biotite moderate Felsic Medium low Orthoclase quartz muscovite biotite high 65 Pause 4 Today s Homework 1 2 Download sample exam word list 1 Study Lecture test in two weeks time Next Time Extrusive igneous rocks 5
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