00000cam 2200000zi 4500 9.964956 CaOODSP 20260807134622 m o d f cr |n||||||||| 260807t20152015oncdab ob f|0| 0 eng d CaOODSP eng rda CaOODSP n-cn--- M183-2/7843E-PDF TGI 4 – Intrusion Related Mineralisation Project : new vectors to buried porphyry-style mineralisation / N. Rogers (ed.). [Ottawa] : Geological Survey of Canada, 2015. ©2015 1 online resource (vi, 572 pages) : charts, illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Open file, 2816-7155 ; 7843 Includes bibliographical references. "Intrusion related (e.g., porphyry) deposits are the world’s most important sources for Cu, Mo, W and Sn, as well as being a major contributor of Au, Ag, and PGEs. Porphyry deposits are typically large, low- to medium-grade deposits in which mineralisation is hosted within and immediately surrounding distinctive intrusive phases within larger intrusive complexes that commonly have prolonged emplacement histories. To develop more effective exploration criteria to identify and evaluate deeply buried and/or hidden fertile intrusive mineralising systems, studies into Cu-Mo/Au and W-Mo-Sn systems are aimed at answering the following questions: i) are there distinctive proximal and distal footprints for deposit types that will allow identification of, and vectoring towards hidden economically viable deposits?; and ii) what are the triggering conditions and indicators of an hydrothermal-magmatic system of size and duration sufficient to develop a large porphyry deposit?"--Abstract, page 1. Porphyry Canada. Analytical geochemistry Canada. Porphyre (Pétrologie) Canada. Géochimie analytique Canada. Rogers, Neil. Geological Survey of Canada, issuing body. Open file (Geological Survey of Canada) 7843. (CaOODSP)9.506878 PDF 112 MB https://publications.gc.ca/collections/collection_2026/rncan-nrcan/m183-2/M183-2-7843-eng.pdf HTML N/A https://doi.org/10.4095/296462