 | | Journal (article/letter/editorial) | | 1279–1315 Geology of the Didipio Region and Genesis of the Dinkidi Alkalic Porphyry Cu-Au Deposit and...and Related Pegmatites, Northern Luzon, Philippines ROHAN C. WOLFE* AND DAVID R. COOKE† CODES ARC Centre...Australia Abstract The Dinkidi Cu-Au porphyry deposit, northern Luzon, Philippines, formed at the tip of...of the southward-propagating Cagayan Valley basin in a late Oligocene to early Miocene back-arc setting...outside of British Columbia and eastern Australia. Dinkidi is hosted by the Didipio intrusive complex, which |  | | Journal (article/letter/editorial) | | Columbia, Canada (Fig. 1), and the Southwest Pacific region (Australia and Papua New Guinea: Fig. 2). The special... pp. 819–825 0361-0128/14/4212/819-7 Pacific region (Fig. 2). Alkalic porphyry Cu-Au deposits can be...deposits, Papua New Guinea, the Dinkidi Cu-Au porphyry, Philippines, and the Emperor deposit, Fiji (e...USA (Jensen, 2003); the Central Montana alkalic province (Richards, 1995); and the Skouries porphyry Cu-Au...and Porgera epithermal deposits as well as the Dinkidi porphyry Cu-Au deposit are associated with alkaline |  | | Book (edition) | | Igneous Rocks from the Five Tectonic Settings Roman Province (Italy): Example from a Continental Arc Setting...Geochemistry of the Potassic Igneous Rocks African Rift Valley (Rwanda. Uganda. Zaire): Example from a Within-Plate...Guinea Emperor Gold Deposit, Viti Levu, Fiji . Dinkidi Copper-Gold Deposit, Didipio, Phillipines . Goonumbla...de la Alumbrera Copper-Gold Deposit, Catamarca Province, Argentina . Bingham Copper Deposit, Utah, USA...Lamprophyres . Shoshonitic Lamprophyres from the Superior Province, Canada (Archaean) Introduction Nature of Mesothermal |  | | Book (edition) | | . . . . . . . . . . . . . . . . . . 4.1 Roman Province (Italy): Example from a Continental Arc Setting.... . . . . . . . . . . . . . . 4.5 African Rift Valley (Rwanda, Uganda, Democratic Republic of Congo):...Viti Levu, Fiji. . . . 6.3.3 Dinkidi Copper-Gold Deposit, Didipio, Philippines . . . . . . . . . . . . ....de La Alumbrera Copper-Gold Deposit, Catamarca Province, Argentina . . 6.4.2 Bingham Copper-Molybdenum...8.5 Shoshonitic Lamprophyres from the Superior Province, Canada (Archean) . . . . . . . . . . . . . . |  | Cooke, D. R., Wilson, A. J., House, M. J., Wolfe, R. C., Walshe, J. L., Lickfold, V., Crawford, A. J. (2007) Alkalic porphyry Au – Cu and associated mineral deposits of the Ordovician to Early Silurian Macquarie Arc, New South Wales. Australian Journal of Earth Sciences, 54 (2) 445-463 doi:10.1080/08120090601146771 | Journal (article/letter/editorial) | | are permissive of limited crustal contamination. Epidote peripheral to the porphyry deposits has Sr isotopic...elevated initial Sr values have been detected in epidote from nearby skarn deposits, indicative of incorporation...monzonite complexes. KEY WORDS: alkalic, copper, epidote, gold, isotopes, mineralisation, porphyry. INTRODUCTION...PGE credits. The best-known alkalic porphyry province occurs in British Columbia, Canada (Lang et al...Wales as the world’s second major alkalic porphyry province (Cooke et al. 2004b, 2006) (Table 1). The combined |  | | Book (edition) | | . . . . . . . . . . . . . . . . . . 4.1 Roman Province (Italy): Example from a Continental Arc Setting...Potassic Igneous Rocks . . . . 4.5 African Rift Valley (Rwanda, Uganda, Democratic Republic of Congo):...Fiji . . . . . . . . 6.3.3 Dinkidi Copper-Gold Deposit, Didipio, Philippines . . . . . . . . . . . . ....Rica Copper-Gold-Molybdenum Deposit, Catamarca Province, Argentina . . . . . . . . . . . . . . 6.4.2 Bajo...de La Alumbrera Copper-Gold Deposit, Catamarca Province, Argentina . . . . . . . . . . . . . . 6.4.3 Bingham |  | | Journal (article/letter/editorial) | | and continued throughout the late Eocene. This region is mostly composed of pyroclastic rocks (Karaj...Tarom subzone (nabaTian et al. 2014). The Tarom region includes porphyry, epithermal, iron oxide apatite...are studied. Mapping of the local geology in the mine area was carried out concurrently during field surveys...volcanic activity are thought to have occurred in the region. Relative temporal relationships of the units are...the system, propylitic (chlorite and calcite or epidote) or argillic alteration occurs. Advanced argillic |  | | Journal (article/letter/editorial) | | occurs in the arc systems in the Paci¢c margin (e.g. Luzon, Papua New Guinea), but thus far, no hydrothermal...volcanic front of the arc) and also in the back-arc region (e.g. [9]) associated with more alkaline volcanism...million yr both in the volcanic front and back-arc region [10]. Hydrothermal activity related to the volcanism...volcanotectonic characteristics and history of the back-arc region of the arc are discussed in terms of the mineralization...volcanic chains in the frontal arc region (volcanic front) and back-arc region (back-arc seamount chains) characterizes |  | | Report (issue) | | contain varying amounts of chlorite, calcite, and epidote, which have 2.32–2.35-μm absorption features (Salisbury...Clark and others, 2007). In the thermal infrared region, quartz and hydrous silica contain emission minima...(sericite), magnetite, chlorite, anhydrite, and epidote. Other commonly occurring gangue minerals are rutile...(sericite), albite, anhydrite, chlorite, calcite, epidote, and kaolinite. In silicate-rich rocks that have...the most common minerals are garnet, pyroxene, epidote, quartz, actinolite, chlorite, biotite, calcite |  | | Journal (article/letter/editorial) | | Tertiary volcanoplutonic arcs of the circum-Pacific region (e.g., Grasberg, Batu Hijau, Bajo de la Alumbrera...is a fully operational underground sublevel cave mine that produced 242,000 oz gold and 33,200 tonnes...sandstone. Intense silicification and local garnet-epidote alteration related to the Ridgeway deposit have...-pyrite-bornite-epidotetitanite-apatite-gold; epidote-quartzchlorite-chalcopyrite-gold-calcitepyrite-hematite-prehnite...-quartz-chalcopyrite-borniteapatite; chlorite-epidote-chalcopyritehematite Alteration mineralogy1, 2 |  | Cirineo, Avriel Venis L., Imai, Akira, Takahashi, Ryohei, Baluda, Redempta P., Oliveros, Noel C., Maglambayan, Victor B., Luis, Roy Ronald C., Faustino, Maria Lourdes M., Almadin, Jacky (2021) Overprinting
porphyry‐type
veinlets on the intrusive rocks and phreatomagmatic breccias in the Southwest prospect, southwestern Sto. Tomas
II
(Philex), Baguio District, Philippines. Resource Geology, 71 (1). 1-40 doi:10.1111/rge.12242 | Journal (article/letter/editorial) | | southwestern Sto. Tomas II (Philex), Baguio District, Philippines Avriel Venis L. Cirineo1 | Akira Imai2 | Ryohei...Division, Philex Mining Corporation, Mandaluyong, Philippines Correspondence Avriel Venis L. Cirineo, Graduate...deposit in the Baguio District, northwestern Luzon, Philippines. The Southwest prospect hosts a copper-gold...Indonesia (Davies et al., 2008) and Acupan, Philippines (Cooke and Bloom, 1990; Cooke et al., 1996);...porphyry copper–gold mineralization in Boyongan, Philippines (Braxton et al., 2009; 2018; Braxton and Mathur |  | Voudouris, P. C., Melfos, V., Spry, P. G., Kartal, T., Schleicher, H., Moritz, R., Ortelli, M. (2013) THE PAGONI RACHI/KIRKI Cu-Mo Re Au DEPOSIT, NORTHERN GREECE: MINERALOGICAL AND FLUID INCLUSION CONSTRAINTS ON THE EVOLUTION OF A TELESCOPED PORPHYRY-EPITHERMAL SYSTEM. The Canadian Mineralogist, 51 (2) 253-284 doi:10.3749/canmin.51.2.253 | Journal (article/letter/editorial) | | area may represent a new Au-Re-Te metallogenetic province. Keywords: Porphyry, epithermal, vapor, hypersaline...and epithermal Cu-Au deposits in northern Luzon, Philippines, La Famatina and Agua Rica, Argentina, and...alkaline-type Cu-Au porphyry deposits, including Acupan, Philippines (Waters et al. 2011), Emperor, Fiji (Pals & Spry...intermediate to high-sulfidation mineralization and mine portal; northern sector, St. Philippos deposit....veinlet within albite/K-feldspar-biotite-actinolite-epidote (Fsp + Bt + Act + Ep) altered granodiorite porphyry |  | Orovan, Evan A., Cooke, David R., Harris, Anthony C., Ackerman, Ben, Lawlis, Erin (2018) Geology and Isotope Geochemistry of the Wainaulo Cu-Au Porphyry Deposit, Namosi District, Fiji. Economic Geology, 113 (1) 133-161 doi:10.5382/econgeo.2018.4546 | Journal (article/letter/editorial) | | diorites and the formation of quartz-sulfide and epidote-sulfide veins. As the magmatic-hydrothermal system...Estimates of δDfluid derived from epidote (–9.1 to 11.3‰) and δ18Ofluid from epidote and anhydrite (–0.2 to 4...ocean water, and the initial Sr isotope ratios of epidote (0.70364–0.70378) suggest a component of seawater...setting and may explain the abundance of albite- and epidote-rich alteration assemblages at Wainaulo. Introduction...Pacific island arc and contains albite-oligoclase ± epidote in many of its early- and main-stage alteration |  | | Journal (article/letter/editorial) | | Emerging Porphyry District in Northeast Mindanao, Philippines* David P. Braxton,1,2,†,** David R. Cooke,1,3...American Exploration (Philippines) Inc., 21 Outlook Drive, Baguio City 2600, Philippines Abstract The Boyongan...the Surigao district of northeast Mindanao, Philippines. Since their formation in the early Pleistocene...historic Surigao Au district of the southern Philippines (Fig. 1). Recent mineral resource estimates for...systems in mind, Anglo American Exploration (Philippines) Inc. (Anglo American) targeted the Surigao Au |  | | Journal (article/letter/editorial) | | Tolgoi in 1996, exploration has increased in the region, focusing on alteration zones related to porphyry...undertaken reconnaissance exploration in the Shuteen region, and 1:200,000-scale geologic maps have been compiled...secondary K-feldspar, tourmaline, biotite, chlorite, epidote, andalusite, magnetite, and apatite in porphyritic...(Figs. 2, 3) and is characterized by chlorite, epidote, calcite, sericite, pyrite, albitized feldspar...150 200 250 300 (ppm) Illite/muscovitechlorite-epidote dominant Illite-epidotechlorite dominant Kaolinite |  | Bath, A. B., Cooke, D. R., Friedman, R. M., Faure, K., Kamenetsky, V. S., Tosdal, R. M., Berry, R. F. (2014) Mineralization, U-Pb Geochronology, and Stable Isotope Geochemistry of the Lower Main Zone of the Lorraine Deposit, North-Central British Columbia: A Replacement-Style Alkalic Cu-Au Porphyry. Economic Geology, 109 (4) 979-1004 doi:10.2113/econgeo.109.4.979 | Journal (article/letter/editorial) | | deposits Afton-Ajax Alkalic : Cu-Au Highland Valley Brenda Calc-Alkalic : Cu-Mo-(Au), Cu-Au Katie...layering have been identified in dikes from the Dinkidi and Boyongan porphyry Cu-Au deposits (Wolfe, 2001;...Lower Main zone. C. Areas of selective albite-epidote-sericite, moderate K-feldspar, and intense K-feldspar...Coarse-grained K-feldspar veins Phase 2 syenite Epidote-pyrite-hematite patches Phase 1 syenite Phase...selective alteration of diopside and plagioclase by epidote, (3) coarse-grained K-feldspar ± biotite veins |  | Real, Irene del, Bouzari, Farhad, Rainbow, Amelia, Bissig, Thomas, Blackwell, Jacqueline, Sherlock, Ross, Thompson, John F.H., Hart, Craig J.R. (2017) Spatially and Temporally Associated Porphyry Deposits with Distinct Cu/Au/Mo Ratios, Woodjam District, Central British Columbia. Economic Geology, 112 (7) 1673-1717 doi:10.5382/econgeo.2017.4526 | Journal (article/letter/editorial) | | Quartz saturated alkaline deposit ta Highland Valley Vancouver Afton Brenda Copper p Mountain Mou ount...established deposits (e.g., Schaft Creek, Highland Valley, and Gibraltar; by field mapping supplemented by...breccia (V6) altered to an assemblage of albite-epidote, 610059E; 5787470N. (D). Volcanic sandstone, well...equigranular, characterized by K-silicate center, albite-epidote plagioclase, potassium feldspar, toward margins...margins, chlorite quartz, hornblende, biotite epidote-pyrite toward margins Pre- to synmineralization |  | | Journal (article/letter/editorial) | | deposits also have peripheral halos of chlorite, epidote, calcite, and albite-altered rocks (“propylitic”...Hematite alteration envelopes occur locally around epidote veinlets within zones of propylitic alteration...ferromagnesian minerals have been altered to chlorite–epidote– magnetite. Ridgeway, drill hole NC498, 233.6 m...alteration envelopes (potassic II) have been cut by epidote veinlets with hematite alteration envelopes. Cadia...cal calcite; chl chlorite; cp chalcopyrite; epi epidote; hm hematite; Kf K-feldspar; mt magnetite; qz quartz; |  | Holliday, John, Wilson, Alan, Blevin, Philip, Tedder, Ian, Dunham, Paul, Pfitzner, Michael (2002) Porphyry gold-copper mineralisation in the Cadia district, eastern Lachlan Fold Belt, New South Wales, and its relationship to shoshonitic magmatism. Mineralium Deposita, 37 (1) 100-116 doi:10.1007/s00126-001-0233-8 | Journal (article/letter/editorial) | | Discovered in 1992 by Newcrest Mining Limited, pre-mine resources in the district were in excess of 585...Cadia Far East in 1996 (Tedder et al. 2001). Pre-mine resources at Cadia were over 585 t of contained...being developed as an underground sub-level cave mine with planned production of over 300,000 oz of gold...gold and copper resources Deposit Cadia Hilla(pre-mine) Measured Indicated Inferred Total Cadia Ridgewayb...referred to in this section are relative to the Cadia Mine Lease (CML) grid system, which is oriented 320 |  | Voudouris, Panagiotis, Mavrogonatos, Constantinos, Melfos, Vasilios, Spry, Paul G., Magganas, Andreas, Alfieris, Dimitrios, Soukis, Konstantinos, Tarantola, Alexandre, Periferakis, Argyrios, Kołodziejczyk, Joanna, Scheffer, Christophe, Repstock, Alexander, Zeug, Manuela (2019) The geology and mineralogy of the Stypsi porphyry Cu-Mo-Au-Re prospect, Lesvos Island, Aegean Sea, Greece. Ore Geology Reviews, 112. 103023 doi:10.1016/j.oregeorev.2019.103023 | Journal (article/letter/editorial) | | various combinations of K-feldspar, actinolite, epidote, chlorite, and calcite gangue minerals. Pyrite...New South Wales (Wilson et al., 2003), and Dinkidi, Philippines (Wolfe and Cooke, 2011), include early ...Metals-enriched magmas in the Aegean-Western Anatolia region were produced under extension in a back-arc setting...of orthoclase, albite, actinolite, magnetite, epidote, chlorite, and calcite (Fig. 8a to h). Clots and...assemblage composed of albite, calcite, chlorite, epidote, sericite, pyrite, hematite, and quartz. Primary |  | | Journal (article/letter/editorial) | | bodies along the arc axis, such as at Highland Valley, where 204 Ma mineralization is hosted within a...few other localities known globally (e.g., Dinkidi, Philippines; Wolfe and Cooke, 2011; Fig. 1). Restriction...displays early biotite flooding, an extensive albite-epidote metasomatic overprint, and latestage K-feldspar...the Brenda stock and the Pennask batholith. The mine began production in early 1970 and was officially...Ag (BCGS, 2011; Table 1). Highland Valley Copper The Highland Valley Cu (Mo, Ag, Au) deposit is located |  | Pass, H. E., Cooke, D. R., Davidson, G., Maas, R., Dipple, G., Rees, C., Ferreira, L., Taylor, C., Deyell, C. L. (2014) Isotope Geochemistry of the Northeast Zone, Mount Polley Alkalic Cu-Au-Ag Porphyry Deposit, British Columbia: A Case for Carbonate Assimilation. Economic Geology, 109 (4) 859-890 doi:10.2113/econgeo.109.4.859 | Journal (article/letter/editorial) | | Alkalic deposits are also known from the Philippines (Dinkidi; Wolfe, 2001), Greece (Skouries; Kroll et...Mihalynuk, 2005). Stratigraphic units within the region have a symmetric distribution, forming a shallowly...structural analysis. Dominant structures in the mine area include the steep, easterly dipping, N-striking...Mount Polley Complex (Fig. 2B). Since Mount Polley mine opened in 1997 until 2013, it has produced more...K-feldspar-magnetite ± albite ± biotite ± augite ± epidote ± chlorite alteration and associated veins (stage |  | | Journal (article/letter/editorial) | | Palinpinon Geothermal Field, Negros Island, Philippines: Implications for Precious Metal Deposition in...Palinpinon geothermal field, Negros Island, Philippines, is a high-temperature, liquid-dominated geothermal...geothermal system located on Negros Island, Philippines (Fig. 1). Deep drilling at Palinpinon makes it...reported that deep geothermal fluids at the Lihir gold mine in Papua New Guinea contain 13 to 16 ppb gold, and...Puhagan B A Mt Pinatubo Lagunao Dome 1334 m PHILIPPINES Manila Talines Dome 1710 m 10° Cuernos de |  | Chang, Zhaoshan, Hedenquist, Jeffrey W., White, Noel C., Cooke, David R., Roach, Michael, Deyell, Cari L., Garcia, Joey, Gemmell, J. Bruce, McKnight, Stafford, Cuison, Ana Liza (2011) Exploration Tools for Linked Porphyry and Epithermal Deposits: Example from the Mankayan Intrusion-Centered Cu-Au District, Luzon, Philippines*. Economic Geology, 106 (8) 1365-1398 doi:10.2113/econgeo.106.8.1365 | Journal (article/letter/editorial) | | Mankayan Intrusion-Centered Cu-Au District, Luzon, Philippines* ZHAOSHAN CHANG,1,†,** JEFFREY W. HEDENQUIST...Bldg., 8747 Paseo de Roxas, 1126, Makati City, Philippines and Metallurgy, School of Science and Engineering...The Mankayan mineral district of northern Luzon, Philippines, hosts several significant ore deposits and... The Mankayan mineral district, northern Luzon, Philippines, was studied in order to develop tools for...deposits in the Central Cordillera of northern Luzon (e.g., Cooke et al., 2011; Deyell and Hedenquist |  | Cao, Kang, Yang, Zhi-Ming, Mavrogenes, John, White, Noel C., Xu, Ji-Feng, Li, Yang, Li, Wei-Kai (2019) Geology and Genesis of the Giant Pulang Porphyry Cu-Au District, Yunnan, Southwest China. Economic Geology, 114 (2) 275-301 doi:10.5382/econgeo.2019.4631 | Journal (article/letter/editorial) | | at Pulang includes five main types: K-silicate, epidote-chlorite, chlorite-illite, quartz-illite, and clay...quartz diorite and fine-grained quartz diorite. Epidote-chlorite alteration, the most widespread alteration...correlated and are mainly (90%) associated with epidote-chlorite alteration and, to a lesser degree, with...with early K-silicate and main-mineralization epidote-chlorite alteration indicate the oxidized nature...carbonaceous Tumugou slates. The atypical association of epidote-chlorite alteration and Cu mineralization at Pulang |
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