Mid-Ocean Ridge Basalts

John Winter, Department of Geology

This PowerPoint presentation is part of the Whitman College petrology course. This 37-slide presentation starts by presenting a generalized map of the earth's rift system. The composition of mid-ocean ridge basalt is introduced in the context of major-element chemistry, petrography, trace elements, spreading rate, and isotope chemistry. Melt generation in terms of mantle and lithospheric structure is portrayed in a number of schematic diagrams. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html

Part of the Cutting Edge collection. The NAGT/DLESE On the Cutting Edge project helps geoscience faculty stay up-to-date with both geoscience research and teaching methods.

Cutting Edge

Subject: Geoscience:Geology:Geochemistry, Geochemistry:Radioisotopes, Geoscience:Geology:Igneous and Metamorphic Petrology:Volcanology, Geochemistry, Geoscience:Geology:Tectonics, Igneous and Metamorphic Petrology:Igneous Associations and Tectonic Settings, Geoscience:Geology:Geochemistry:Elements, Geoscience:Geology:Structural Geology
Resource Type: Audio/Visual:Maps, Images/Illustrations, Datasets and Tools:Datasets, Course Information:Course Site:Course Notes
Grade Level: College Lower (13-14), College Upper (15-16), Graduate/Professional
Classes of Earth Materials: Volcanic Rocks
Course Type: Upper Level:Petrology, Geochemistry
Geologic Setting: Oceanic Crust, Mantle
Topics: Solid Earth:Structural Geology, Petrology:Volcanology, Geochemistry, Igneous Associations and Tectonic Settings, Solid Earth:Geochemistry:Radioisotopes, Solid Earth:Geochemistry, Solid Earth, Geochemistry:Elements, Chemistry/Physics/Mathematics
Solid Earth Processes: Volcanism
Theme: Teach the Earth:Course Topics:Structural Geology, Petrology, Geochemistry, Teach the Earth:Teaching Topics:Plate Tectonics
Tectonic Setting: Mid-Ocean RidgeKeywords: ophiolite, N-MORB, E-MORB, Langmuir model