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Precious-metal-bearing Volcanogenic Massive Sulfide Deposits, Campo Morado, Guerrero, Mexico
By Mark Rebagliati, John Payne, Jim Oliver
Abstract-The Campo Morado precious-metal-bearing, volcanogenic massive sulfide deposits occur in a lower Cretaceous, bimodal, calc-alkaline volcanic sequence in a major northerly trending belt in the
Jan 1, 1997
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Precious-metal-bearing Volcanogenic Massive Sulfide Deposits, Campo Morado, Guerrero,Mexico (63b48013-4318-466b-b2d9-966e31151f49)
By Mark Rebagliati, John Payne, Jim Oliver
The Campo Morado precious-metal-bearing, volcanogenic massive sul?de deposits occurin a lower Cretaceous, bimodal, calc-alkaline volcanic sequence in a major northerly trending belt inthe Guerrero Ter
Jan 1, 1997
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Alluvial Gold Mining in the 1990s
Alluvial gold mining in New Zealand and in particular on the West Coast underwent a renaissance during the early 1980's. This was based on two main factors: a) the sharp rise in the gold price
Jan 1, 1996
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Recent Experience With The Omega Pile And New Applications - Synopsis
By Maurice Bottiau
The recent evolution of the piling market clearly shows a growing demand for screw piles with soil displacement. The recently developed Omega Screw pile ful-fill these new expectations, combining the
Jan 1, 1996
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Presidential Address, 1957-The Place of the Iron and Steel Industry in the Australian Economy
Six years ago it was my responsibility to give the presidential address, and now that privilege has come my way again. On that occasion we were gathered atWhyalla and I took the opportunity of putting
Jan 1, 1957
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Evaluation of Irregular Deposits
There are circumstances where the ordinary techniques of experimental variography in geostatistics û now in common use despite their recent origin û are not quite successful. This paper describes a ne
Jan 1, 1984
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RI 3209 The Cleaning Of Fine Coal From The Mary Lee Bed At The Porter Mine ? Introduction
By A. C. Richardson
The mine of the Porter Coal Co. is located at the town of Porter in the northwestern part of Jefferson, County, Ala., about 20 miles west of Birmingham. The operations in this mine are confined to the
Jan 1, 1933
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Volume changes in sandstone under true triaxial compression conditions
By M. Kwasniewski, M. Takahashi
Prismatic samples of a medium-grained sandstone from Slask Colliery (Upper Silesian Coal Basin, Poland) were tested under uniaxial compression, conventional triaxial compression and true triaxial comp
Jan 1, 2003
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Narrow-Vein Mining Project: Economical Realities and Innovation Perspectives for the Extraction of Narrow Vein Deposits
By Jean-Marie Fecteau
The gold mine sector is presently facing low gold prices as well as technological challenges. Its competitiveness and survival will depend on new mining methods and equipment to improve ore extraction
Oct 1, 2001
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Metalliferous sub-marine sediments of the Atlantis-II-Deep, Red Sea
By Zuhair A. Nawab, Muhammad A. Al-Marhqun, Mehmet Guney
"The Atlantis-Il-Deep is a stratified metalliferous deposit located along the median valley of the Red Sea at a water depth of about 2200 m. The metal-bearing mud contains sulphides of zinc, copper an
Jan 1, 1988
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Beneficiation Of Low-Grade Limonite Ore By HIMS-Cationic Reverse Flotation And Magnetic Roasting-LIMS Techniques
By L. Xinghua
Limonite is a general term for a group of amorphous iron oxide and iron hydroxide materials. It is considered as one of the very refractory iron ore types due to its wide variation in chemical composi
Feb 27, 2013
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Using Positron Emission Particle Tracking (PEPT) to Investigate Industrial Systems
Using Positron Emission Particle Tracking (PEPT) to Investigate Industrial Systems
Sep 13, 2010
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Investigation of Microwave Exposure on Beneficiation of Low-Grade Banded Iron Ore Mining, Metallurgy and Exploration
By Nikhil Dhawan, Shrey Agrawal, Veeranjaneyulu Rayapudi
India’s steel vision of 2030 requires a huge amount of quality iron ore. The utilization of low-grade iron ores such as banded iron ores will play an important role to achieve the same production. The
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Consultants Can Be Safe, Too – A Collaborative Approach
By Brian FitzPatrick, Michael J. Weaver
Everyone has a role in site safety, even consultants. This paper presents a summary of how a geotechnical and environmental consulting firm, with field staff on construction and subsurface exploration
Jan 1, 2019
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Gold Recovery Using Riffle Tables: A Review of Current Practice on the West Coast with Reference to Contemporary Research
Despite the recovery of approximately six million ounces of alluvial gold from the West Coast of the South Island, New Zealand during the last 140 years, a great deal of this having been obtained via
Jan 1, 1992
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Pre-Implementation Evaluation of VR as a Mine Safety Training Tool - SME Annual Meeting 2025
By CASSANDRA L. HOEBBEL, Jennica L. Bellanca
High-fidelity, immersive training is known for its learning and logistical benefits. While other industries have used virtual reality (VR) for decades, the same uptake has not been seen in mining. NIO
Feb 1, 2025
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Effect of Refractive Index on the Determination of Layer Thickness of 4H-SiC Homo-Epitaxial Films
By Zhiyun Li
Room temperature infrared reflection spectra of 2 n-type homo-epitaxial epifilms have been measured in the work. The effect of the refractive index on the determination of layer thickness using tradit
Jan 1, 2010
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Evaluation Of A Limit Equilibrium Model To Simulate Crush Pillar Behaviour - Synopsis
By M. du Plessis
This paper describes the evaluation of a limit equilibrium model to simulate the behaviour of crush pillars in platinum mines. An analytical model was derived to calculate the residual average pillar
Jan 1, 2011
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Observations on the 2005 PDAC Convention
By Bruce Geller
The 2005 Prospectors and Developers Association of Canada (PDAC) convention continued the upbeat mood found in 2004. The global mining industry is booming due to higher commodity prices in nearly eve
Jan 1, 2005
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Optimizing Secondary Tailgate Support Selection
A model was developed to facilitate secondary tailgate support selection based on analysis of over 100 case studies, compiled from two different surveys of operating longwall coal mines in the United
Jan 1, 1996