MARGINS Mini-lesson Collection
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Online Investigation of an Island Arc Volcano: Anatahan, Mariana Arc
This activity is a Web investigation and research exercise starting with the 2003-present Anatahan volcanic eruptions in the Mariana arc, and concluding with a petrologic examination of published Mariana arc lavas data sets.
A tour of the Mariana Subduction System
This lesson presents a brief tour of the Mariana subduction system, an active continental margin in the west Pacific.
Historical Earthquakes and Uplift/Subsidence of Sumatra from Coral Growth Rings -- Advanced Version
In this lab, students will use data from real corals collected in Sumatra to track the sea-level and earthquake record of the region over the past century.
From Ocean Topography to Flexural Rigidity
Students will use the available bathymetric datasets to test the utility of a flexural rigidity model of oceanic crust.
A Geologic Safari of the East African Rift and the Newark Basin: Why these areas are more alike than you know
This activity explores the similarity and differences between the Newark Rift Basin and East African Rift.
What Goes into Making Volcanic Arc Magmas, and How Do We Know It?
This activity is a directed reading exercise focused on papers that have been key to our understanding of the major source contributors to subduction zone volcanic rocks.
Plate Tectonics as Expressed in Geological Landforms and Events
This activity seeks to have students analyze global data sets on earthquake and volcano distributions toward identifying major plate boundary types in different regions on the Earth. A secondary objective is to familiarize students with two publicly available resources for viewing and manipulating geologically-relevant geospatial data: Google Earth(TM) and GeoMapApp.
Partitioning of thrust and strike/slip faulting in oblique subduction
Oblique subduction results in distinct sets of faults with either just thrust or mainly strike/slip motion and that back-arc thrust belts show little oblique strain compared to forearc areas.
Profiling Earth's Surface using GeoMapApp
In this exercise, students relate large-scale features on Earth's surface to lithospheric plates, the underlying asthenosphere, earthquakes, and volcanoes. After creating a cross section showing elevation using GeoMapApp, students add additional features by hand.
Testing plate tectonics in the Gulf of California
This is a simple exercise to use real-world data from recent large earthquakes so that students can "test" for themselves if plate tectonics "works" in the Gulf of California.