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Full-Text Articles in Physical Sciences and Mathematics
Geochemical Investigation Of The Origin Of The Back Forty Volcanogenic Massive Sulfide Deposit In Menominee County, Michigan, Joyashish Thakurta, Anthony Boxleiter
Geochemical Investigation Of The Origin Of The Back Forty Volcanogenic Massive Sulfide Deposit In Menominee County, Michigan, Joyashish Thakurta, Anthony Boxleiter
Faculty Research and Creative Activities Award (FRACAA)
Volcanogenic Massive Sulfide (VMS) deposits constitute one of the world’s greatest sources of copper, zinc, lead, silver, gold, and a wide range of by-products including tin, cadmium, antimony, and bismuth (Kearney, 2003). The metals we mine on earth from ore-bearing deposits, such as VMS deposits, are vital to everyday life from the vehicles we drive to the homes we build. The first step involved in unlocking the value of metal on earth begins with geologic exploration to locate these deposits within the earth. This begins with field work conducted by geologists involving mapping, rock sampling and analysis.
Time-Dependent Photoionization Modeling Of Gaseous Nebulae, Manuel Bautista, Ehab Elhoussieny, Javier Garcia, T. R. Kallman
Time-Dependent Photoionization Modeling Of Gaseous Nebulae, Manuel Bautista, Ehab Elhoussieny, Javier Garcia, T. R. Kallman
Faculty Research and Creative Activities Award (FRACAA)
Photoionized plasmas are the most commonly observed in astronomy, particularly through optical and UV observatories, such as the Hubble Space Telescope (HST). Modeling astronomical photoionized plasmas is generally done from the condition of steady-state statistical equilibrium, but none-equilibrium time-dependent photoionization (TDP) is found in a large variety of astronomical objects, yet it has received little attention thus far. There are multiple examples of notable failures of steady-state photoionization modeling. We have developed of a general purpose time-dependent photoionization modeling code and its use in the analysis of astronomical spectra. The new code, TDPX, is capable of including all chemical elements …