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Gold mineralization

Hydrothermal clay-silica deposits (kaolinite, halloysite, sericite, montmorillonite and silica) and zeolite deposits occur in Tertiary-Quaternary volcanic regions. These deposits are distributed in areas of epithermal gold mineralization. [Pg.5]

Aoki, M. (1988) Gold mineralization in the Osorezan hydrothermal system — Rock alteration and hot spring precipitates. Mining Geology, 38, 64 (in Japanese). [Pg.267]

Izawa, E. (2001) Epithermal gold mineralization in Kyushu. Proceedings of International Symposium on Gold and Hydrothermal Systems, pp. 1 -4. [Pg.276]

Izawa, E. and Urashima, Y. (1989) Quaternary gold mineralization and its environments in Kyushu, Japan. Econ. Geol. Mon., 6, 233-241. [Pg.276]

Morishita, Y. and Takeno, N. (1993) Gold mineralization in the Noya geothermal area, Ohita-ken, Kyushu, Japan. Resource Geology, 43, 173-186. [Pg.280]

Seki, Y. (1993) Geologic setting of the Takatama gold deposit, Japan an example of caldera-related epithermal gold mineralization. Resource Geology Special Issue, 14, 123-136. [Pg.285]

Shikazono, N., Naito, K. and Izawa, E. (eds.) (1993) High Grade Epithermal Gold Mineralization. Resource Geology Special Issue, 14. [Pg.287]

Urashima, Y., Izawa, E. and Hedenquist, J.W. (1987) Nansatsu-type gold mineralization in the Makurazaki district. Society of Mining Geologists of Japan Guidebook, 2, 13-22. [Pg.291]

Watanabe, Y, Aoki, M. and Nakajima, N. (1996) Age and style of epithermal gold mineralization in the Minamikayabe area, southwestern Hokkaido. Mining Geology, 46, 317-326. [Pg.292]

Yamada, R. (1995) Acid type vs. adularia-quartz type gold mineralization at Harukayama district, Hokkaido, Japan. Resource Geology Special Issue, 18, 211—216. [Pg.293]

Aoki, M. (1992b) Active gold mineralization in the Osorezan caldera. In 29th IGC Field Trip Guide Book, vol. 6. Tokyo Soc. Resource Geol., pp. 69-75. [Pg.395]

Izawa, E. and Aoki, M. (1991) Geothermal activity and epithermal gold mineralization in Japan. Episodes, 14(3), 269-273. [Pg.399]

Geochemical and mineral dispersal patterns related to drift-covered copper-gold mineralization in central British Columbia, Canada... [Pg.21]

This paper documents a soil and till survey of the Shiko Lake porphyry copper-gold mineral occurrence near Quesnel Lake, British Columbia, and the comparison of Cu, Au, and other elements by partial extraction geochemical analysis with the distribution of gold and other heavy mineral grains (Lett Doyle 2009). [Pg.21]

A study of soil geochemistry and gold grain mineralogy over the Shiko Lake porphyry copper-gold mineral occurrence in central British Columbia has revealed ... [Pg.23]

In our initial use of VIRS methods, we have chosen a diverse set of projects. These include epithermal-style precious metal mineralization (eastern and central Newfoundland), mesothermal gold mineralization (Central Newfoundland), syngenetic VMS mineralization and related alteration (Central Newfoundland), porphyry-style Mo-Cu mineralization (southern Newfoundland) and uranium mineralization in the Central Mineral Belt of Labrador. Space does not permit detailed discussion of results, but in all cases we were able to recognize distinctive alteration species and document their distribution. In some cases, results provided surprises, eg., the recognition of topaz in quartz-alunite alteration and possible Li-rich micas in VMS alteration influenced by magmatic fluids. In some cases, the resolution of species in mixed assemblages proved to be difficult, but the overall spectral patterns could still be used to discriminate alteration facies and demonstrate their superposition. [Pg.291]

The Na-Ca and K-Fe-(Ca) alteration assemblage hosting iron-oxide, copper and gold mineralization and spatial and temporal relationship between mineralization and alteration, as well as the oxide and sulfide mineralogy at amli (Balikesir) suggest that it has characteristics more akin to Fe-oxide-Cu-Au systems. [Pg.500]

Flotation Properties of Gold Minerals and Factors Affecting Floatability... [Pg.4]

FLOTATION PROPERTIES OF GOLD MINERALS AND FACTORS AFFECTING FLOATABILITY... [Pg.4]

Separation of desirable components of a mixture is not a new desire on the part of humanity. Removal of water-borne particles including sand, silt, and bacteria is desirable for both sensory appeal and health. The use of sand as a filtration medium for such filtration is very old. The use of a pan to separate gold dust from silica sand by gold miners is a use of the large difference in density to wash the lighter silica away... [Pg.403]

Smee, B.W. 1998. A new theory to explain the formation of soil geochemical responses over deeply covered gold mineralization in arid environments. Journal of Geochemical Exploration, 61, 149-172. [Pg.95]

The Miocene stratigraphy in the Baguio District has been intruded by a series of Pliocene rocks. The homblende-phyric Mafic Dike Complex intruded the central part of the Baguio District at 4.5 - 4 Ma (Waters et al. submitted). The complex is characterized by dense clusters of coarsely hornblende phenocrystic dikes with evidence for multiple injections. Several Pliocene to Pleistocene dioritic intrusive complexes are associated with porphyry copper-gold mineralization in the Baguio district. The Black Mountain Intrusive Complex includes the Black Mountain quartz diorite and the Mexico Diorite, as well as andesite dykes that have yielded ages of between 3.14 and 2.78 Ma (Waters et al. submitted Sweet etal. 2008). Other Pliocene intrusive rocks... [Pg.166]

Cooke, D.R., McPhail, D.C., Bloom, M.S., 1996. Epithermal gold mineralization, Acupan, Baguio district, Philippines geology, mineralization, alteration and the thermochemicai environment of ore deposition. Economic Geology, 91, 243-272. [Pg.168]

The electrochemical precipitation of gold is considered here the main mechanism for gold precipitation. Such a mechanism can be viewed as a filter to extract gold in solution, even in low concentration, during hydrothermal fluid flow in the veins. It can also be considered as independent of physico-chemical condition variations, hence accounting for the vertically and laterally extensive gold mineralization in the prolific Poderosa-Pataz district. The most important contribution of our study lies in the fact that the As enrichment is not a primary feature of pyrite growth but... [Pg.195]

Gold mineralization at MGR has been delineated by trenching and diamond drilling over a strike length of >500 m and is open below 276 m. Visible gold has not been observed, so it is assumed that Au occurs as submicroscopic inclusions and (or) as refractory gold in sulfides. [Pg.209]

The purpose of this paper is to describe the gold-bearing sulfide-carbonate-quartz veins of the MRG in order to compare this deposit with similar styles of gold mineralization is the region. [Pg.209]

Gold mineralization in the Kakagi-Rowan Lake greenstone belt a study... [Pg.213]

See other pages where Gold mineralization is mentioned: [Pg.45]    [Pg.112]    [Pg.6]    [Pg.167]    [Pg.168]    [Pg.187]    [Pg.223]    [Pg.238]    [Pg.266]    [Pg.362]    [Pg.362]    [Pg.362]    [Pg.363]    [Pg.563]    [Pg.2]    [Pg.4]    [Pg.4]    [Pg.73]    [Pg.94]    [Pg.165]    [Pg.213]    [Pg.215]   
See also in sourсe #XX -- [ Pg.294 , Pg.302 ]



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Gold Bearing Minerals

Ore deposit simulation and reserve estimation in Masjeddaghi epithermal gold mineralization Azerbayjan - Iran

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