Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Cu porphyry"'
Autor:
James A. Finch, Yue Hua Tan
Publikováno v:
Minerals, Vol 13, Iss 3, p 411 (2023)
Mechanical cells have seen an exponential increase in size over the past 60 years. However, a possible size limitation due to carrying capacity constraints has been raised. Taking a Cu porphyry case, a cell sizing exercise is used to show that possib
Externí odkaz:
https://doaj.org/article/b3e8957eb61c477aad3a572222fb81c4
Publikováno v:
Georesursy, Vol 22, Iss 3, Pp 48-54 (2020)
The paper shows new fluid inclusion and isotopic-geochemical data for minerals from sulphide-carbonate-quartz veins of Vosnesensky Cu-porphyry deposit. Fluid inclusions were analyzed by means Linkam TMS-600 cryostage equipped with Olympus BX 51 optic
Externí odkaz:
https://doaj.org/article/db0e6d32630b4d8fbdfafcfdf31c7bbf
Publikováno v:
Journal of Economic Geology, Vol 12, Iss 1, Pp 93-109 (2020)
Introduction In porphyry copper deposits, turquoise is considered to be a supergene oxidation product (John et al., 2010; Chavez, 2000). Based on Rezaian et al., 2003; Zarasvandi et al., 2005 and Eslamizadeh, 2004, the Aliabad index is introduced as
Externí odkaz:
https://doaj.org/article/ad69650762604af7ab2b952bfd3f0980
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Autor:
Chu Wu, Tao Hong, Xing-Wang Xu, Xiao Zheng, Cheng-Xi Wang, Wan-Juan Liang, Ke-Feng Sun, Hui-Jun Zhang, Bin Wang, Lian-Hui Dong
Publikováno v:
Minerals, Vol 12, Iss 7, p 815 (2022)
Enclaves constitute a key tracer guide to assess the magmatic source and evolutionary processes of Cu–Mo–Au porphyry-type deposits. In this study, four types of enclaves were identified in the Baogutu reduced Cu porphyry-type deposit, West Jungga
Externí odkaz:
https://doaj.org/article/15de3930d2204be9bd652294861267b0
Autor:
Kaveh Pazand, Ardeshir Hezarkhani
Publikováno v:
Geology, Ecology, and Landscapes, Vol 2, Iss 4, Pp 229-239 (2018)
Fuzzy set theory was successfully used to map areas of copper porphyry mineralization potential in the Ahar–Arasbaran district of Iran. Proximity to geological features is translated into fuzzy membership functions based upon qualitative and quanti
Externí odkaz:
https://doaj.org/article/d7bc7fddd9a14fb4a20ea5d52bbd746d
Publikováno v:
Journal of Economic Geology, Vol 10, Iss 1, Pp 1-23 (2018)
Introduction Kuh Zar Au-Cu deposit is located in the central part of the Torud-Chah Shirin Volcanic-Plutonic Belt, 100 km southeast of the city of Damghan. Mineralization including quartz-base metal veins are common throughout this Cenozoic volcano-
Externí odkaz:
https://doaj.org/article/0b745a502b554426aa186ba455ea3955
Publikováno v:
Journal of Economic Geology, Vol 10, Iss 1, Pp 113-137 (2018)
Introduction The Hamech prospect area is located in the eastern Iran, 85 kilometers southwest of Birjand. The study area coordinates between 58¬¬˚¬53΄¬00 ˝ to 59˚¬00΄¬00˝ latitude and 32˚¬22΄¬30 ˝ to 32˚¬26΄¬00˝ longitude. Due
Externí odkaz:
https://doaj.org/article/7d7470c1f5644e04bcc39cbe8fd9a889
Publikováno v:
Литосфера, Vol 17, Iss 5, Pp 113-126 (2017)
There is a generalization of U-Pb age of zircons from the copper-porphyry deposits of the eastern slope of the Urals. Approved reserves of the largest ones are about 1.4-1.8 Mt of Cu (at an average content of 0.4-0.6 wt % of Cu). Porphyry mineralizat
Externí odkaz:
https://doaj.org/article/d2c29554f81d447ba3b50e4758155281
Publikováno v:
Journal of Economic Geology, Vol 9, Iss 1, Pp 117-139 (2017)
Introduction The Shah Soltan Ali area is located 85 km southwest of Birjand in the South Khorasan province. This area is part of the Tertiary volcanic-plutonic rocks in the east of the Lut block. The Lut block is bounded to the east by the Nehbandan
Externí odkaz:
https://doaj.org/article/3b306df4921b44fa923b55a4d7234ed6