Date of Award
8-2006
Degree Type
Thesis
Degree Name
M.S.
Degree Program
Geology
Department
Earth and Environmental Sciences
Major Professor
Simmons, William B.
Second Advisor
Webber, Karen
Third Advisor
Whitmore, Robert
Fourth Advisor
Wise, Michael
Fifth Advisor
Falsten, Alexander
Abstract
An investigation of the beryl-phosphate subtype Palermo #2 pegmatite, located in the Grafton pegmatite field of New Hampshire, has revealed a large number of phosphate species. Late-stage, carbonate-bearing aqueous fluids have metasomatically altered primary phosphates producing a suite of nearly forty species of secondary phosphates. The secondary phosphates at Palermo #2 are a result of alteration of primary phosphates and associated silicate, carbonate, sulfide, arsenide and oxide minerals locally present in the core margin. Concomitant alteration of these associated minerals contributes the necessary ions to the hydrothermal fluids responsible for the formation of the diverse suite of secondary phosphates. Alteration of the mineral assemblage occurring in a given area creates a collection of secondary phosphates characteristic of that specific assemblage, whereas a completely different collection of secondary phosphates may appear only a few centimeters away. Thus, each suite of secondary phosphates is the product of its specific microenvironment of alteration.
Recommended Citation
Nizamoff, James, "The Mineralogy, Geochemistry and Phosphate Paragenesis of the Palermo #2 Pegmatite, North Groton, New Hampshire" (2006). University of New Orleans Theses and Dissertations. 398.
https://scholarworks.uno.edu/td/398
Rights
The University of New Orleans and its agents retain the non-exclusive license to archive and make accessible this dissertation or thesis in whole or in part in all forms of media, now or hereafter known. The author retains all other ownership rights to the copyright of the thesis or dissertation.