Kerrigan, Ryan
(2023)
The Geochemistry and Petrogenesis of the Braganca and Morais Massifs of northern Portugal: Examining islands of rock to understand how mountains are built.
In: Pitt Momentum Fund 2023.
Abstract
Understanding the geology and events that contributed to the creation of northwest Iberia can shed light on the evolution of the mountain belts formed during past collisions throughout the globe. Geologic investigation of Braganca and Morais Massifs of northern Portugal will be conducted to: (1) correlate the units of the Braganca and Morais Massifs with units across the region, (2) examine and test hypotheses about the source/origin of the rocks, and (3) produce data to understand the tectonic assembly of the Iberian Peninsula. Proposed research will include geologic sampling and field mapping of the Braganca and Morais Massifs in northern Portugal. Collected samples will be submitted for geochemical testing of major, minor, and trace elements, which will be compared and correlated between related units present in northwest Spain to test hypotheses of direct links between the Spanish and Portuguese rocks. Geochemical signatures in minor and trace elements can indicate the type of source that created the rocks and provide insight on the processes the rocks have endured. Understanding the correlation of units across northwest Iberia and the source of these rocks will allow for the testing of competing hypotheses and improve the current geodynamic/tectonic models for the region.
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