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
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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
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Using Variables to Solve Word Problems
Susan puts only dimes and quarters in her coin bank ...
Author(s): Math Forum,Christina

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Rocks Unit
Picking up, examining and collecting rocks can be the first steps in moving children toward an appreciation of geology and the “bones” of the Earth. Children can find a wide variety of rocks in many places, from the school yard to parks and driveways at home. Even very young children enjoy picking up rocks, lining them up, choosing “favorite” ones, pouring water over them to make them shiny and even painting them as gifts for adults. By letting children handle and observe rocks you give
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Density of Rocks - Some Applications
In this activity students study some applications of knowing the density of rocks. One set of applications involves the stress, strength, and factor of safety for a rock roof resting on one or more columns in an underground room. A second set of applications involves the normal and shear stresses, cohesion force, and inclination angle for a slab of rock resting on an inclined surface. Students recreate spreadsheets shown in a Powerpoint module with formulas that answer various pieces of an overa
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Density of Rocks - How Large Is a Ton of Rock?
This module addresses how to determine the size of a ton of rock of a given composition and invites the student to figure out how to solve the problem. Students recreate spreadsheets, shown in a Powerpoint module, on their own with formulas that answer various pieces of the overall question. This module is the third in a series of six that examine the density of planets and rocks, and was designed for an undergraduate class where students look at geological questions mathematically and may spend
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Stratigraphic Framework of Lower and Upper Cretaceous Rocks in Central and Eastern Montana
This USGS report focuses on Cretaceous rocks in Montana with respect to natural gas and coalbed methane. The study includes the stratigraphy from the top of the Mowry Shale to the base of the Judith River Formation. The project integrates geologic, structural, hydrologic and engineering studies with known and new geochemical data on the gas and co-produced water. The report also facilitates an understanding of the controls on the spatial distribution of potential gas accumulations. Figures, tabl
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All You Need Is (the Summer of) Love - Creating an Exhibit that Compares 1960s and Contemporary Cult

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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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