Star Library: Sampling Distributions of the Sample Mean and Sample Proportion
In these activities designed to introduce sampling distributions and the Central Limit Theorem, students generate several small samples and note patterns in the distributions of the means and proportions that they themselves calculate from these samples.
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Granitoid Rocks
This 16-slide PowerPoint presentation discusses the characteristics of granitoid rocks including geographic occurrence, rare earth elements, enclave characteristics, pressure-temperature conditions, the influence of water, and tectonic setting. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
Author(s): John Winter

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Classification of Igneous Rocks
This PowerPoint presentation is part of the Whitman College petrology course. The presentation covers classification of phaneritic igneous rocks, gabbroic rocks, ultramafic rocks, pyroclastic rocks and volcanic rocks using triangular diagrams, and classification of igneous rocks based on total alkalis vs. silica. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
Author(s): John Winter

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A Classification of Metamorphic Rocks
This 24-slide PowerPoint presentation describes the classification of metamorphic rocks using texture and composition. Foliation, lineation, cleavage, schistosity, gneissose structure, hornfels, and granofels are discussed. Specific metamorphic rock types and modifying terms (porphyroblastic, spotted, augen, para-, ortho-) are defined and photographs of some are provided. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
Author(s): John Winter

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Metamorphism of Calcareous and Ultramafic Rocks
This 18-slide PowerPoint presentation describes metamorphism of calcareous rocks in terms of basic composition, SiO2, MgO, CaO ternary diagrams, and isobaric T-XCO2 and T-XH2O diagrams. The chapter also presents CMS-H diagrams and isobaric T-X diagrams to describe ultramafic rocks. This resource is ...
Author(s): John Winter

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Metamorphic Facies and Metamorphosed Mafic Rocks
This 72-slide PowerPoint presentation discusses mineral assemblages and metamorphic facies in terms of temperature and pressure changes. Eclogite, granulite, amphibolite, blueschist, greenschist, prehnite-pumpellyite, zeolite, sanidinite, pyroxene hornfels, hornblende hornfels, and albite-epidote hornfels ...
Author(s): John Winter

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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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Metamorphic Rocks for Undergraduate Courses
This site contains photographs of 18 metamorphic rock hand samples. Clicking on an image brings up a larger view of each sample. Images of thin sections are available for some of the samples. Thin sections can be seen in both crossed polarized light and plane polarized light by moving the cursor on ...
Author(s): Robert Marsh

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Igneous Rocks of the Ocean Basins
These lecture notes introduce magmatism and petrology as they relate to the oceanic lithosphere. The notes cover ophiolite sequences and types of volcanic settings found in ocean basins. A section about basalt includes discussion of location, composition and origin of mid-ocean ridge basalts. Ocean ...
Author(s): Stephen Nelson

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Igneous Rocks of the Convergent Margins
This set of lecture notes discusses the occurrence and tectonic settings of igneous rocks near convergent plate margins. A discussion of petrography includes major element composition, calc-alkaline trends in ternary diagrams, trace element variations, isotopes to distinguish magma sources, and the ...
Author(s): Stephen Nelson

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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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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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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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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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Stellar Wind Disruption by an Orbiting Neutron Star: Moderate 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): Bruce Fryxell,Ian Stevens,John Blondin,Ron Taam,Ti

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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: 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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Why I Grew to Love America and You Should Too
Justin Webb will discuss America politics in the context of British media reporting, particularly in the Bush period and coverage of the recent US elections. Justin Webb is North American editor at the BBC.
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LSE Literary Weekend - Speaking of Love
Editors note: We apologise for the poor audio quality of this podcast. Four very different writers consider four very different aspects of love: love as enchantment, and love as madness; passion in youth, and compassion in age. They read their favourite passages on love both from their own work, and from the work of others, and, on Valentine’s eve, discuss Shakespeare’s notion that 'The lunatic, the lover and the poet are of imagination all compact'.
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Stokes' Law Exercise for "Rocks and Minerals"
In this activity students are led through a qualitative/semi-quantitative derivation of Stokes' Law. Lab groups brainstorm on and hypothesize about what factors will affect settling velocity. They then time the settling of various objects of known composition and size through different fluids of known viscosity to validate or invalidate their hypothesis. Additional activities that can go along with this exercise are outlined in the downloadable teaching notes on page. The site also includes a li
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