نتایج جستجو برای: choghart iron ore mine
تعداد نتایج: 171992 فیلتر نتایج به سال:
in this paper a new method is proposed for interpretation of 2d magnetic data, using multiples of the analytic signal method, in which the analytic signal of magnetic anomaly is used directly to compute the depth and the structural index of the source instead of using its higher order derivatives. this method only needs the computation of the first order derivatives of the magnetic anomaly, so ...
Spontaneous combustion during coal mining operations is a major problem that affects the health and safety of workers causes environmental problems. The phenomenon associated with presence coal, shale, pyrite. In 2020, premature detonation incident occurred at an iron ore mine where waste material contains black carbonaceous shale units known to be spontaneous propensity properties samples shal...
The block economic value (BEV) of a single-metal deposit is calculated based on the metal content and the related costs. The common methods available for calculating BEV are just based upon the profitable elements, and the effects of undesirable elements on BEV are not considered. However, in multi-element deposits, the effects of other elements existing in the blocks on BEV should be considere...
The objective of this research is to determine all processes in the magmatic evolution and related hydrothermal activities that created the volcanic rocks and associated ore-forming systems of the Bafq mining district. Several iron oxide-apatite (IOA) deposits were investigated in this area with a focus on the Sechahun ore deposit. The Bafq mining district is well known for hosting significan...
Abstract The paper presents the latest results of Monte Carlo inversion IP data in areas water base protection and ore exploration. method determining time constant spectrum using parameters characterizing degree environmental contaminations deposition are presented. Among field applications Hungary, investigation ionic pollution Ráckeve characterization Felsőtelekes waste dump Rudabánya iron m...
The study investigated whether occupational accident risks were equally distributed across age categories over time in the context of production reorganization and work rationalization in a Swedish iron ore mine between 1980 and 1993. Three phases of reorganization, defined by productivity levels, and four age categories were related to age-related accident risk ratios using the Poisson-regress...
sarcheshmeh copper mine, with the final reserves of 828 million tons of sulfur ore and average grade of 0.74%, is known to be the largest open pit of iran and most probably the second largest copper mine in the world. this mine is located in the seismotectonic zone of central-iran, and 23 km away from the 150 km long rafsanjan active fault.in this study the vulnerability of the west wall of the...
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