Date of Award

5-2026

Document Type

Thesis

Degree Name

Master of Science (MS)

College/School

College of Science and Mathematics

Department/Program

Earth and Environmental Studies

Thesis Sponsor/Dissertation Chair/Project Chair

Matthew L. Gorring

Committee Member

Gregory A. Pope

Committee Member

Joshua C. Galster

Abstract

The Franklin Marble is one of North America’s most famous geologic units, a result of its complex geology, diverse mineralogy, and significant ore deposits. While it has been widely studied, a location that has received little attention is that of the quarries at McAfee, Vernon Township, NJ. This study addresses this oversight by investigating the mineralogy, geology, and geochemistry of the marble and associated geologic units found in the area. Sample analysis consisted of physical and optical analysis as well as chemical analysis using SEM-EDS. Geochemical analysis using ICP-MS allowed for major, trace, and rare earth element concentrations of select assemblages to be determined. These results enabled mineral identification, interpretation of mineral assemblages, petrogenesis, and geologic context. Results of this study found many minerals and mineral assemblages not documented from the location as well as previously undocumented mineral species for the region and state. These findings conclude a complex geological history at the location with many stages of metamorphism, igneous activity, and widespread hydrothermal alteration.

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