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Coconino Sandstone

The Coconino Sandstone is a Permian Formation preserved in northern Arizona (USA). Learn more about this unit and the fossil trackways found in its layers from the specimens hosted in the GRI collections.

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Stops and Turns: Uncommonly Preserved Theropod Locomotive Behavior Patterns in an Upper Cretaceous Tracksite from Torotoro National Park, Bolivia

The majority of dinosaur trackways that have been described in the literature represent walking individuals following mostly straight paths. Thus, any trackways that deviate from this pattern are of interest because they indicate behavior that is not usually preserved at most tracksites. This recent paper, based on a research project in Bolivia funded by the Geoscience Research Institute, documents several of these uncommon trackways.

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Two Contributions at Ichnia 2024

Research mostly funded by the Geoscience Research Institute was presented at the 5th International Congress on Ichnology, Ichnia 2024, held in Florianopolis, Brazil – April 14-19, 2024.

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Four Poster Presentations at the 2023 American Geophysical Union (AGU) Fall Meeting

Research partially funded by the Geoscience Research Institute was presented in poster format at the American Geophysical Union (AGU) meetings, held in San Francisco, CA – December 11-15, 2023.

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STEM Tuesdays

Educational, hands-on videos, produced by the NAD Department of Education in collaboration with GRI, designed to engage  academy students in creativity and learning.

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Geomorphological Changes in Young Soils with Sparse Vegetation: Mathematical Modeling and Numerical Simulation

The Geoscience Research Institute partially funded a recently published article modeling erosion rates in the Sierra Nevada Mountains of California near Yosemite. The algorithms simulated weathering of complex topography at each point and time step in air, ground surface, and soil. The numerical model included the effects of air velocity, rainfall, temperature variation, heat and water infiltration into soils, soil topography and porosity fraction, and freezing and thawing of water in granitic rock.

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