Physical Sciences and Mathematics Commons^™

Trace Element Geochemistry And Nd-Sr Isotope Systematics Of Scheelite From The Thunder Creek And 144 Gap Deposits, Timmins, Ontario: Implications For Timing And Genesis Of Gold, Annika Van Kessel

Electronic Thesis and Dissertation Repository

The age of the youngest gold event at the Timmins West Mine is unknown. Scheelite geochemistry and geochronology at the TWM were constrained using WDS and EDS mapping, LA-ICPMS and MC-ICPMS analytical techniques. Trace element analyses by LA-ICPMS revealed scheelites mineralized from a common and oxidized fluid. Samarium-Neodymium isotopic analyses of 15 scheelite grains yielded a linear regression isochron with a corresponding age of 2587 +/- 49 Ma (MSWD = 2.5) and εNdi, calculated from CHUR, of 1.01 ± 0.11 (2SD). A second internal isochron from a single scheelite grain yielded an age of 2516 +/- 88 Ma (MSWD = …

Geochemistry Of The Dome Mine Ankerite Veins: Insights Into The Multi-Stage Enrichment Of A World-Class Orogenic Gold Deposit, Jessica M. Stromberg

Electronic Thesis and Dissertation Repository

The Dome Mine in the world-class Timmins camp has produced over 16 Moz of gold during its 108 year production history. This gold endowment is the result of multistage enrichment of which the first stage is a set of ankerite veins that extend over 5,400 m in strike and 1,500 m vertically. A deposit wide geochemical study of the Dome ankerite veins was undertaken to characterize their genesis, geochemistry, and role in the deposit mineralization history. Samples and mapping from new and historic mine workings, bulk rock geochemistry, and stable isotope geochemistry were used to constrain the depositional context of …

Controls On Syenite-Hosted Gold Mineralization In The Western Timmins Camp, Robert A. Campbell

Electronic Thesis and Dissertation Repository

The Abitibi granite-greenstone belt has long been known for its’ world-class Archean

lode gold deposits. With exploration and production commencing in the early nineteen

hundreds and continuing into the twenty-first century, this prolific mining camp is rich

in history, research and precious/base metals. The Thunder Creek deposit and Hwy-144 gold prospect are two recently discovered and exploited syenite associated gold plays in the Timmins Camp. The research compares the Thunder Creek and Hwy-144 properties providing new observations on the variable mechanisms for gold mineralization that can change over a short strike distance (0.5-1.5 km’s) hosted in a geologically similar environment. …