 | | Journal (article/letter/editorial) | | SomeGeologic Featuresof theMmnutPorphyry CopperDeposit,Sabah,Malaysia H. K6SAK^ ^ND K. WAKITA Abstract The Ma...northwest-southeast-trending tectoniczone in the stateof Sabah,Malaysia. Coppermineralizationis associated with a potash-rich...bedsof tuff within the preoreelasticrock sequence. Mamut is a copper-golddepositwith a total ore reserve...both of which occur within the ore shell. Quartz-sericite alteration with veins is commonly observed. Tertiary...age (Collenette,19.58;Liechti et al., 1960; ThE Mamut porphyrycopperdepositis locatedin Hutchison, 1968; |  | | Journal (article/letter/editorial) | | Columbia, the Philippines, Sulawesi, Papua New Guinea, Sabah and Puerto Rico. Gold is normally present in potassium...examinations of deposits in the Philippines and Sabah, suggests that local factors related to the internal...GALORECREEK,B.C. 12. AMACAN, " FISH LAKE, B.C. 13. MAMUT, Sabah SANTOTOMASIf, Philippines t4. PANGUNA,Bou(Jo(nvillels...At Bajo de La Alumbrera in the Faral16n Negro district, Catamarca province, northwest Argentina, an oval...quartz-bearing, volcanic rocks in the Farall6n Negro district have been assigned to the shoshonitic suite (Dostal |  | Imai, Akira, Ohbuchi, Yukiko, Tanaka, Takayuki, Morita, Seiya, Yasunaga, Kentaro (2007) Characteristics of Porphyry Cu Mineralization at Waisoi (Namosi District), Viti Levu, Fiji. Resource Geology, 57 (4) 374-385 doi:10.1111/j.1751-3928.2007.00031.x | Journal (article/letter/editorial) | | of Porphyry Cu Mineralization at Waisoi (Namosi District), Viti Levu, Fiji Akira Imai1, Yukiko Ohbuchi1...Abstract The porphyry Cu deposits at Waisoi in Namosi district, Viti Levu are separated into two deposits: the...deposits at Waivaka Corridor and Waisoi in Namosi district, Viti Levu, are representative porphyrytype deposits...al., 2003, 2004, 2006). The Cu deposits in the district have been explored since the early 20th century;...porphyry-type Cu deposits at Waisoi in Namosi district, on the basis of ore mineral assemblage and fluid |  | | Journal (article/letter/editorial) | | stringers in sericite alteration, 3) stringer quartz veinlets associated with molybdenite in sericite alteration...inclusions in veinlet stockwork quartz enveloped in sericite alteration (stage 2) consist mainly of gas-rich...with the age of 2.7 Ma determined on hydrothermal sericite (Malihan, 1987). The Philippine archipelago is...through the Cenozoic in the island arc setting in mine was operated by Benguet Corporation by an open pit...Phyllic-argillic (quartz/sericite/sericite-smectite) Phyllic-argillic (quartz/sericite/sericite-smectite) Potassic |  | | Journal (article/letter/editorial) | | identifizierbares Pd-Sb- Tellurid (in der Lagerst/itte Mamut) als Einschltisse in Chalkopyrit festgestellt. Pd...Russia, Armenia, Uzbekistan, Kazakhstan, Indonesia, Malaysia, Papua New Guinea and the Philippines. Location...(Kasakhstan); 29 Grasberg (Indonesia); 30 Mamut (Malaysia); 31 Ok Tedi; 32 Panguna (Papua New Guinea);...(ppb) (%) Bozshakol + INDONESIA Grasberg* MALAYSIA Mamut/l* Mamut/2* PAPUA NEW GUINEA Ok Tedi/l* Ok Tedi/2*...contents have been analysed in samples from Elacite, Mamut and Ok Tedi with 760-1900, 1180-1600 and 650-980ppb |  | | Journal (article/letter/editorial) | | Porphyry copper deposits account for 60% of the world's mine production of copper and constitute 80% of ore reserves... Valley Copper (Sutherland Brown, 1976) l Malaysia: Mamut (Kosaka and Wakita, 1978; Titley, 1978; Nishiyama...number of deposits. Sericitic: Feldspar altered to sericite kaolinite. ± Advanced argillic: Feldspar altered...argillic: Feldspar altered to clay minerals + sericite. Propylitic: Presence of epidote and/or chlorite...the top, although information from drillholes and mine exposures is more limited. Sulfide zoning usually |  | | Journal (article/letter/editorial) | | in Figures 3 and 4, respectively (courtesy of the mine). Since the old tonalite is too small with respect...surface is original topography (courtesy of the mine). Since the old tonalite is too small with respect...surface is original topography (courtesy of the mine). Since the old tonalite is too small with respect...Magnetitebiotite±quartz stringers and micaceous (biotite-sericite) veinlets were developed, accompanied by biotization...transitional alteration consisting of oligoclase/ albite-sericite-chlorite-quartz is associated with ‘B’ quartz |  | | Journal (article/letter/editorial) | | enargite-luzonite CuAu deposit in the Mankayan Mineral District, Benguet Province, northern Luzon, Philippines...widely distributed in the western part of the district on the western flanks of the Luzon Central Cordillera...rocks. The Philippine Fault gets split in this district, resulting in numerous NW-SE and conjugate NE-SW...Mineral District is located north of Baguio, in the Luzon Central Cordillera. The Baguio district is famous...and Au-bearing skarn deposit of the Thanksgiving mine (Callow, 1967). The geologic outline and distribution |  | | Book | | London, Geological Society of Malaysia, Jabatan Mineral dan Geosains Malaysia, Oxford University Press and... The first reliable geological observations on Sabah were by Hatton (1885), a young mineral explorer...Borneo. Although, he never set foot in Sarawak or Sabah, but had journeyed through Kalimantan. He collected...journeys of some mineral prospectors in his account of Sabah, but he did not mention the real geological explorers...already well advanced before that of Sarawak and Sabah (then North Borneo). The international border between |  | | Journal (article/letter/editorial) | | detailedexaminationof space-timerelationshipsat the E1 Salvador mine, Chile, Gustarson and Hunt (1975) describedthe complex...dioritic Major variationsfrom the typical are seen at Mamut, Northern Sulawesi,Koloula,and Yandera. most Cordillerandeposits...zeolites, and locally hematite along with major sericite and albite. The absenceof pyrite in associate...integrallyrelatedto usualmineralassemblages at Mamut probablyreflect the magmaticevolutionof the intrusiverocks...mostfactorsof magmagenesisare probalteration,as opposed to sericite,in North Sulawesi ablynotcriticalin porphyrycopperformation |  | | Journal (article/letter/editorial) | | instead, contains vein and pervasive albite-quartzsericitecarbonate. As temperature decreased, early high-temperature...of 16.4 to 17.1& (quartz), dD of ±124 to ±105& (sericite), and d34S of C.S. Rombach (&) á R.J. Newberry...alteration 9 +quartz veining Strong sericite alteration 7 Weak sericite alteration 4 Alteration 980 133...alteration +quartz veining Strong sericite alteration Weak sericite alteration Au (ppm) n Alteration...predominant alteration assemblage is quartz-albitesericitecarbonate. Other alteration minerals are relatively |  | | Journal (article/letter/editorial) | | the Elacite deposit in Bulgaria, the Mamut deposit in Malaysia and the Grasberg deposit in Indonesia...by early propylitization and widespread quartz-sericite metasomatism. K-silicates, in the form of quartz-Kfeldspar...mt—magnetite, py—pyrite, qz—quartz, rt—rutile, ser—sericite, sl—sphalerite, tm—tourmaline. V.I. SotnikoÕ...from copper– gold, like Grasberg ŽIndonesia. and Mamut ŽMalaysia. to copper–molybdenum deposits such as...7 c Malaysiac Mamut British Columbia. Cordillerad Allard, La plana Copper King Mine highly alkaline |  | | Journal (article/letter/editorial) | | , 1984; Ague & Brimhall, 105°0’E PENINSULAR MALAYSIA 115°0’E 1988; Zhu & Sverjensky, 1992; Loferski...135°0’E 10°0’N 1. Introduction BRUNEI EAST MALAYSIA 10°0’S 10°0’S 0°0’S 0°0’S SINGAPORE 105°0’E...a depth of approximately 1 km below the current mine topography. On the basis of the (U-Th)/ He apatite...quartz monzonite (adamelite) porphyry at Mamut, Sabah, East Malaysia (Imai, 2000). The chlorine fugacity (HCl)... A. (2000) Genesis of the Mamut porphyry Cu deposit, Sabah, East Malaysia. Resour. Geol., 50, 1–23. Imai |  | McFall, Katie A., Naden, Jonathan, Roberts, Stephen, Baker, Tim, Spratt, John, McDonald, Iain (2018) Platinum-group minerals in the Skouries Cu-Au (Pd, Pt, Te) porphyry deposit. Ore Geology Reviews, 99. 344-364 doi:10.1016/j.oregeorev.2018.06.014 | Journal (article/letter/editorial) | | Aksug, Zhireken and Mikheevskoe, Russia; Mamut, Malaysia and Fengshan, China (Table 1, Augé et al.,...stage in the Elatsite, Santo Tomas II, Kalmakyr, Mamut and Majdanpek deposits. The Elatsite and Santo Tomas...sulphide concentrates from Aksug, Majdanpek and Mamut (where sperrylite [PtAs2] was also identified; Tarkian...(Figure 1). It is part of the Kassandra mining district (Kroll et al., 2002), in the Serbomacedonian metallogenic...2007; Harris et al. 2013). The Kassandra mining district consists of several magmatic-hydrothermal ore |  | 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) | | prospect, southwestern Sto. Tomas II (Philex), Baguio District, Philippines Avriel Venis L. Cirineo1 | Akira...II porphyry copper–gold deposit in the Baguio District, northwestern Luzon, Philippines. The Southwest...of potassic, chlorite–magnetite, propylitic and sericite–chlorite alteration, and contemporaneous veinlet...the chalcopyrite–magnetite– chlorite–actinolite±sericite veinlets contemporaneous with the chlorite–magnetite...other porphyry deposits in the Baguio District. KEYWORDS Baguio District, diatreme, fluid inclusion microthermometry |  | | Journal (article/letter/editorial) | | δ34S values of cinnabar from the Hidaka-Kitami district, central Hokkaido, including the Itomuka and Ryushoden...δ34S values of cinnabar from the Hidaka-Kitami district, central Hokkaido, is difficult to explain at...mercury deposits are known in the Hidaka-Kitami district, central Hokkaido (Fig. 1), including Ryushoden...MAT delta E mass spectrometer. The Hidaka-Kitami district, central Hokkaido (Fig. 1) vary isotopic compositions...Hinaga and Motegi deposit, located in the Yamizo district, present-day forearc basement high, mainly consisting |  | | Journal (article/letter/editorial) | | biotite-feldspar porphyryplug of approximatelythe In this sericite zone, chalcopyrite is the dominant samedimensions(Carson...from the first der, 1971: Moore and Nash, 1974), Mamut (Imai et al., 1976), and SantoTomasII (Takenonchiand...from the relative abundance of in- Binghamand Mamut(KosakaandWakita, 1978), 60 J. PV. J. WILSON,...Kosaka, of theMamutporphyry copper deposit, Sabah, Malaysia: ards,T. A., 1976,Bell copper:geology,geochemistry...clusionstudyof the Mamutporphyrycopperdeposit, 180-181. Sabah,Malaysia: InclusionResearch, COFFI, Proc., Watmuff,G |  | | Journal (article/letter/editorial) | | Elatsite (Bulgaria), Biga (Philippines) and Mamut (Malaysia) porphyry deposits (Tarkian and Stribrny 1999)...Elatsite deposit is the largest, active porphyry copper mine in Bulgaria. Since 1981 over 165 Mt of ore at 0...the matrix, secondary quartz, clay minerals and sericite occur frequently. The Paleozoic monzogranites...secondary biotites. In addition, albite, epidote, sericite, anhydrite and, occasionally, calcite occur. Bornite...flotation concentrates from Majdanpek/Serbia, Mamut/Malaysia and Biga/Philippines (Tarkian and Stribrny |  | | Journal (article/letter/editorial) | | rocks is recognized in Japan. The Shiretoko sulfur mine was intermittently operated from 1878 to 1943. The...Shin-Ohtoyo deposit is located in the Harukayama district, 20 km west of Sapporo, in the southwestern Hokkaido...andesite: ca. 0.1 Ma to present). The Numajiri sulfur mine was situated on the western slope of the Adatara...Hishikari mine is located in northern part of Kagoshima prefecture, in so-called Hokusatsu district, southern...Izawa et al., 1990) are of epithermal adularia-sericite type (Heald et al., 1987), or low-sulfidation |  | | Journal (article/letter/editorial) | | through potentially ore-grade potassic, chlorite-sericite, and sericitic, to advanced argillic, the last...low- to moderatesalinity liquid that causes the sericite-chlorite and sericitic alteration and associated...in magmatic arc settings. At the regional and district scales, the occurrence of many deposits in belts...Los Pelambres Los BroncesRío Blanco El Teniente Mamut Grasberg-Ertsberg Ok Tedi Cerro de Pasco & Colquijirca...the geology of porphyry Cu systems at regional, district, and deposit scales. The resultant geologic model |  | | Journal (article/letter/editorial) | | archipelago is composed of aggregated mineral district. Some of these intrusions are accompaallochtonous...1990; Aoki et al., 1993). In in the Baguio mineral district, comprise the backbone of addition to the common...deposit are located in the north of Baguio mineral district. Arribas et al. (1995) reported that the ages...within 0.3 m.y., at ca. 1.4 Ma. A K-Ar age on sericite from the Guinaoang (Tirad) deposit was dated as...at Philex Main Camp (1.8±0.6 Ma). A K-Ar age on sericite from the Dizon deposit was reported as 2.7 Ma |  | | Book | | Ohya Mine, Miyagi Prefecture ... . ... . . . .. . .................(H. Imai). . .. 3. Takatori Mine, Ibaragi...Kim, Y. Fujiki and S. Takenouchi).... 5. Komori Mine, Kyoto Prefecture . . . ..... .. . .....(H. Imai...Structure and Fluid Inclusion Studies at the Taishu Mine, Nagasaki Prefecture ..... .... ...(H. fmai, S....7. Sado Mine, Niigata Prefecture .... ............ (H. Imai and M. Buono).... 8. Mikawa Mine, Niigata...Osarizawa Mine, Akita Prefecture .... .... ........... ....... (H. Imai).... 10. Ani Mine, Akita Prefecture |  | | Journal (article/letter/editorial) | | plagioclases are locally dusted by very finegrained sericite. A typical characteristic of the early potassically...as throughout the diamond-drill cores. Quartz, sericite, chlorite, and minor calcite constitute the phyllic...selective alteration, plagioclase is altered to sericite and biotite and hornblende to chlorite, but pervasive...feldspar by fine- to medium-grained white micas (i.e. sericite – paragonite), clay minerals (kaolinite, illite..., 1995, Summary of the geology of the Bingham District, Utah, in Pierce, F.W., and Bolm, J.G., eds., |  | | Journal (article/letter/editorial) | | orebodyislargelyoverlainby an essentially barrenquartz-sericite-pyrite lithocapup to several hundredmetersthick...with virtually completedestruction of texture. Sericite, locally sufficientlycoarseto be calledmuscovite...destructionand formationof major quantitiesof sericite and pyrite. They are presentin the uppermostparts...molybdenumvein mineralizationand, in its limestone quartz-sericite-pyrite--have not been documented wall rocks,is...enargite,and sphalerite,in additionto thequartz-sericite-pyrite assemblage (Corn, A number of stocksand |  | | Report (issue) | | .................................... Adularia-Sericite Epithermal Gold-Silver Veins ...................mining district ...................................................... Pamlico mining district .........mining district ...................................................... Pamlico mining district .........of the Lucky Boy mining district 2. Geologic map of the Pamlico mining district ABSTRACT Mineral deposit...magmatic arc include W skarns (Gardnerville mining district), W veins, a low-F porphyry Mo deposit (Pine Nut |
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