Rayleigh-Taylor Instabilities in Supernovae Explosions: Oxygen Mass Fraction
The following calculation shows the development and evolution of Rayleigh-Taylor instabilities which develop behind the supernova blast wave on a time scale of a few hours. The initial model was chosen to provide a good representation for the progenitor star for Supernova 1987A. The calculation was performed using the Piecewise-Parabolic Method for hydrodynamics on a two-dimensional spherical grid with rotational symmetry about the vertical axis and equatorial symmetry about the horizontal axis.
Author(s): Bruce Fryxell,Dave Arnett,Ewald Muller,Pamela ONei

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Rayleigh-Taylor Instabilities in Supernovae Explosions: Partial Density of Helium
The following calculation shows the development and evolution of Rayleigh-Taylor instabilities which develop behind the supernova blast wave on a time scale of a few hours. The initial model was chosen to provide a good representation for the progenitor star for Supernova 1987A. The calculation was ...
Author(s): Pamela ONeil,Bruce Fryxell,Ewald Muller,Dave Arnet

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Stellar Wind Disruption by an Orbiting Neutron Star: High X-Ray Luminosity
A tiny neutron star orbits incessantly around a massive star with a diameter a million times larger than its own. The high luminosity of the massive star drives a strong wind from its surface. The neutron star crashes through this wind at over 300 kilometers per second. The gravity and X-ray luminosity of the neutron star act to disrupt the wind, producing an extended wake of dense gas trailing behind the neutron star. This simulation, in the reference frame of the neutron star, shows conditions
Author(s): Alan McConnell,Bruce Fryxell,Ian Stevens,John Blon

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Stellar Wind Disruption by an Orbiting Neutron Star: Low X-Ray Luminosity
A tiny neutron star orbits incessantly around a massive star with a diameter a million times larger than its own. The high luminosity of the massive star drives a strong wind from its surface. The neutron star crashes through this wind at over 300 kilometers per second. The gravity and X-ray luminosity of the neutron star act to disrupt the wind, producing an extended wake of dense gas trailing behind the neutron star. This simulation, in the reference frame of the neutron star, shows conditions
Author(s): Alan McConnell,Bruce Fryxell,Ian Stevens,John Blon

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Stellar Wind Disruption by an Orbiting Neutron Star: Neutron Star Close-up
A tiny neutron star orbits incessantly around a massive star with a diameter a million times larger than its own. The high luminosity of the massive star drives a strong wind from its surface. The neutron star crashes through this wind at over 300 kilometers per second. The gravity and X-ray luminosity ...
Author(s): Alan McConnell,John Blondin,Ian Stevens,Tim Kallma

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Sun as a Star: Science Learning Activities for Afterschool
The activities in this guide engage students in learning about the Sun and the process of scientific investigation. These activities were adapted for use in afterschool programs with ages 5-12. The Sun as a Star consists of eight activities, each of which may be completed in about one hour.
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Geochemistry of Igneous Rocks
This website contains an abundance of data on the geochemistry of igneous rocks. The site provides very brief descriptions of many types of terrestrial and lunar igneous rocks, their regional distribution and classification, and examples of their geochemical trends and fingerprints. Graphs that plot ...
Author(s): Bernard Gunn

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General Classification of Igneous Rocks
These lecture notes are part of a series of lectures available on the geology department website at Tulane University. Topics covered include criteria for the classification of igneous rocks, field identification of minerals present in hand sample, thin section examination and chemical analysis. The ...
Author(s): Stephen Nelson

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Geology Collection: Rocks and Minerals Homepage
This site features rock and mineral photographs that can be used for teaching or research. There are pictures of minerals, fossils, and sedimentary, metamorphic, and igneous rocks. There are also images of thin sections of igneous and metamorphic rocks. Sets of images are presented as collections for ...
Author(s): Robert Marsh

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Igneous Rocks of the Continental Lithosphere
These lecture notes present a discussion of mineralogical classification of granitic rocks, definitions of hypersolvus and subsolvus granites, tectonic and chemical classification, and depth of emplacement of granites. Other topics include pegmatites, continental rhyolites, origin of large volumes of ...
Author(s): Stephen Nelson

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Introduction and Textures and Structures of Igneous Rock
These lecture notes provide an introduction to igneous rocks. The notes cover information about characteristics of magmas, plutonic rocks, volcanic rocks, and textures of igneous rocks. There are several illustrations within the text. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
Author(s): Stephen Nelson

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Triangular Plots in Metamorphic Petrology
These lecture notes discuss the use of three component systems in metamorphic petrology. Common triangular plots used in metamorphic rocks are presented with annotated ternary diagrams. The presentation includes four criteria for reducing the number of components in a system to a workable number. There ...
Author(s): Stephen Nelson

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Two Component Phase Diagrams
This site contains lecture notes that are part of a petrology class taught at Tulane University. This section includes a discussion of systems, phases, components, the phase rule, two component eutectic systems, incongruent melting, rocks of varying composition and fractional crystallization, solid ...
Author(s): Stephen Nelson

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Types of Metamorphism
This set of lecture notes introduces metamorphic grade and type (contact, regional, cataclastic, hydrothermal, burial, shock), and classification of metamorphic rocks. Further topics include texture, protolith, bulk chemical composition, and metamorphic facies. The notes contain definitions and a small ...
Author(s): Stephen Nelson

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Igneous Rocks Tour
This module is designed to allow students to learn about igneous rocks at their own speed using images of hand samples and rock outcrops in their natural settings. Topics covered include the common igneous rock types, igneous textures, and intrusive rock bodies. Each topic has instructive text and several ...
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Intersecting Isograds at Whetstone Lake
This 15-slide PowerPoint presentation takes the viewer through a real life investigation of metamorphic terrane consisting of pelitic and calcareous rocks. The investigation includes recognition of 5 reactions that take place in the area. P-T, AFM, and T-X diagrams provide visual tools used to assess ...
Author(s): John Winter

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Metamorphism of Pelitic Sediments
This PowerPoint presentation includes 30 slides discussing metamorphism in pelitic rocks. The presentation uses AKF diagrams to describe Barrovian zones of metamorphism in metapelites. Metamorphism in pelitic hornfels rocks is also discussed and migmatitic textures are illustrated. This resource is ...
Author(s): John Winter

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The Young and the Restless: SFJAZZ All-Star High School Ensemble
Since its inception in 2001, the SF Jazz All-Star High-school Ensemble has received national acclaim as the Bay Area's premier youth jazz ensemble. SPARK follows band director Dr. Dee Spencer and two exceptional players through from audition to rehearsal to preparation for an important public performance.
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Soil Characterization Protocol
The purpose of this resource is to characterize the physical and chemical properties for each horizon in a soil profile. Students identify the horizons of a soil profile at a soil characterization site, then measure and record the top and bottom depth for each horizon. For each horizon, students describe the structure, color, consistence, texture, and abundance of roots, rocks, and carbonates. Samples are collected and prepared for additional laboratory analysis.
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Leaf Classification
The purpose of this resource is to develop a classification system for a set of objects and learn about hierarchical classification systems. Any set of objects, such as insects or rocks, may be used as well.
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