Dr. Jeff Marshall
Undergraduate Research Advising
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Student: Reynicole Gilbert
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Research Project: Variations in tectonic uplift patterns
based on stream length gradient indices, Nicoya Peninsula, Costa Rica |
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Reynicole Gilbert during
Geomorphology class field trip along the San Diego County coastline (October
2007) |
Digital elevation model of northern
Costa Rica (SRTM) linked to offshore bathymetric data (courtesy of C.J.
Petersen, IFM-GEOMAR). This image shows the outer fore arc Nicoya Peninsula and
the Middle America Trench offshore, where the Cocos oceanic plate subducts
beneath Costa Rica on the Caribbean plate and Panama block. |
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Images: Project
photos and illustrations Project
Overview: Reynicole Gilbert’s senior thesis examines tectonic
uplift patterns on Costa Rica’s Nicoya Peninsula based on variations in the
magnitude of stream length-gradient indices. She is using standard 1:200,000
scale topographic maps to calculate and contour stream length-gradient values
for drainage networks throughout the peninsula. The goal of this project is
to evaluate variations in uplift patterns and identify possible upper plate
faults. This project is part of a larger regional investigation of Nicoya
Peninsula neotectonics and paleogeodesy directed by Dr. Marshall. Research Abstracts: 2008
Central American Geologic Congress Abstract: Congreso Geológico de América
Central, San José, Costa Rica, 2008 Senior
Thesis: Gilbert, R., in progress,
Variations in tectonic uplift patterns based on stream length-gradient
indices, Nicoya Peninsula, Costa Rica: [B.S. Thesis] Cal Poly Pomona
University, Pomona, California. |
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