Special Issue "Apatite and Ore Deposits"
Deadline for manuscript submissions: closed (15 July 2018)
The study of ore deposits requires, among other things, the characterization of the fluid(s) responsible for mineralization, as well as understanding the timing and duration of ore deposition. This can be accomplished by the study of several types of objects (minerals, fluid inclusions, etc.) associated with mineralization. Apatite (Ca5(PO4)3(OH,F,Cl)) is an ubiquitous accessory phosphate mineral found in many types of rocks and environments. This is particularly true with regards to ore deposits. This mineral has several key characteristics that are very useful when one is interested in the characterization and/or the dating of the circulations of fluid(s) and/or the magmatism responsible for the deposition of mineralization. Apatite is an excellent trap for P, F, Cl, OH, as well as Rare Earth Elements, and can easily react in the presence of brines or aqueous fluids containing CO2, HCl, H2SO4 and/or F. In addition, this mineral often incorporates uranium during its crystallization. This makes it an excellent candidate for U-Pb dating. Moreover, this same mineral can also be dated using either the fission track and/or (U-Th)/He techniques. Therefore, it becomes possible to date the apatite crystallization age (or its interaction with late fluids), as well as the exhumation age of the host rocks and, subsequently, to have access to the whole history of the ore deposit, from its emplacement to its exhumation. In addition, oxygen isotopes studies can also be performed on this mineral to provide some valuable information on the fluid(s) temperature(s). Consequently, apatite constitutes, a priori, an excellent proxy to obtain, from a single mineral, multiple information on the fluids responsible for the setting up of mineralization (temperatures, compositions but also ages and durations). The main goal for this Special Issue is to collect different case studies, as well as innovative methodological contributions, indicating how the use of apatite associated with diverse types of ore deposits can provide some key information for the establishment of a metallogenic model.
Dr. Marc Poujol
Manuscript Submission Information
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- ore deposits
- stable isotopes
- fluid inclusions
- economic geology