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MARGINS Mini-lesson Collection


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Serpentine Seamounts in the Mariana Forearc: Shallow Material Releases from Downgoing Plates
A set of maps, images and .kmz files for use in lectures and discussions on forearc serpentine volcanism in the Mariana subduction system.

How Slab Dip Affects the Location of Volcanoes
Students will plot the locations of earthquakes on the top of subducting slabs to determine slab dip and will then develop hypotheses regarding the relationship between slab dip, the depth of the slab, and volcanic activity on the surface.

A Volcanic Record Through Time
This is a lecture segment that can be used or adapted for use in an undergraduate geoscience class. The goal of the lecture is to familiarize students with the concept of volcanic change through time at time scale commensurate to plate tectonic evolution.

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.

Volcanoes of Central America
Volcano distribution and tectonics at a convergent margin: Central American volcanoes

What Kind of Continental Margin am I? Active or Passive?
Volcanoes, earthquakes, and topography reveal whether a continental margin is active or passive. In this activity, students use the GeoMapApp tool to work with earthquake, volcano, and topographic data to identify ...

Historical Earthquakes and Uplift/Subsidence of Sumatra from Coral Growth Rings - Introductory Version
In this lab, students will use data from real corals collected in Sumatra to date historical earthquakes and to track the history of uplift and subsidence of the region over the past century.

Serpentinite in Subduction Zones: How do we find it, and how common is it?
A mineralogical, petrological, and geophysical exploration of the role of serpentinite in subduction zones, as highlighted in the two NSF-MARGINS Subduction Factory focus sites.

What Can (and Cannot) Be Learned from Scientific Drilling Using Examples from Margins Initiatives
This is a lecture segment that could be introduced to an introductory geoscience class to help explain and demonstrate what can and cannot be found out by scientific drilling.

Burial, compaction, and porosities in a subduction zone
In this activity, students look at how sediments compact as they are buried in a subduction zone and explore how rapid burial can lead to increased water pressure.