Ok Tedi began mining operations in 1984, initially as a gold mine to exploit the gold-rich cap on the Mount Fubilan deposit, and then as a copper-gold mine in 1987 for the majority of the ore body. In 2002, BHP exited Ok Tedi, announcing its interest to the PNG Sustainable Development Programme (SDP)
Tailings from the Ok Tedi mine have been discharged into the river since the mid-1980s (Banks 2002), and Campbell and Beardall (2019) found that
Mining (Ok Tedi Tenth Supplemental Agreement) Act 2013 6SA Mining (Ok Tedi Sixth Supplemental Agreement) Act 1986 9SA Mining (Ok Tedi Ninth Supplemental Agreement) Act 2001 ARAMA Alice River Alluvial Mining Association ART Alice River Trust ASM Artisanal and small-scale mining BCL Bougainville Copper Limited
Nov 01, 2020 Scale of project now far exceeds original expectations (see Table S6) – which could be viewed as a blessing (i.e. economically) or a curse (i.e. environmentally), but it certainly means that the scale of environmental and social risks continues to grow as mine waste continues to enter the Ok Tedi-Fly River system; 5
The river section between the Ok Tedi and the Strickland River junction is termed Middle Fly River with a length of 410 river kilometres (Fig. 1). We in-vestigated the geochemistry of modern sediments and water in the lower part of the Middle Fly River flood-plain, after ten years of large-scale Ok Tedi copper-gold mining 500–600 km upstream
Re- Ok Tedi and related situations, the strategies identified cently, a great number of large-scale mines have in this paper could prove useful in resolving and concerned themselves with the small-scale mining sector preventing a great number of land use conflicts, (UN, 1996)
Approximately 50,000 residents in 120 villages have been affected by the 70 million tonnes of tailings and waste rock dumped into the Ok Tedi River. Fish stocks are estimated to have declined 70-90 percent. As a result, BHP divested itself of the Ok Tedi mine, leaving management to a gov-ernment-owned subsidiary
Feb 08, 2017 3.5.5.3 Potential Acid and Copper Loads to the Ok Tedi from Bige Table 3.21 presents the predicted potential peak acid and copper loads from the East and West Bank stockpiles and Table 3.22 compares the loads from the combined Bige stockpiles with the total load from all mine derived sediments deposited in the Ok Tedi and Fly River catchments
Jan 01, 2002 In fact, the areas that are less favourable to mine on a large-scale—more specifically, where it is unsuitable to use bulky equipment—are usually more suitable for small-scale mining, a primary example being the reprocessing of tailings and waste dumps, which is usually only economically viable on a small-scale
Through the combined efforts of various universities, government departments, individuals and in particular, the management of Ok Tedi Mining Limited, the owner and operator of the Ok Tedi mine, this on-going attempt to monitor environmental impact has resulted in the assembly of an enormous body of work on this important river system
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Biblioteca en l nea. Materiales de aprendizaje gratuitos. Ninguna Categoria Subido por Orlando Mamani Explotaci n Mineral - Principios y aplicaciones
The first stage, to run from 2005 to 2007, covered the cement, glass, paper-and-pulp, electric-power, and iron-and-steel industries. The second stage, to run from 2008 to 2012, was expected to impose tighter restrictions and would perhaps be extended to cover additional producers, such as the chemical and aluminum industries and, possibly, the
The Amazon River is the greatest river in the world in its volume and the area of its drainage basin. The Amazon flows some 6400 km across northern Brazil to its mouth in the Atlantic Ocean. It has been estimated that from 20 to 25 per cent of all the water that runs off the surface of the Earth is carried by the Amazon
Oct 20, 2009 A PILOT small-scale alluvial gold mining project will soon begin in Western province to prop the local economy even after the closure of Ok Tedi Mining Ltd (OTML) some time in 2013. This project is being made possible through the OTML’s partnership with the PNG Sustainable Development Program Ltd (PNGSDP), the Fly River provincial government
Apr 27, 2021 A local company in the North Fly District of Western Province is committed to supporting small scale alluvial business for locals. The Ok Ti Stones Limited (OTSL) in Haidawogam village along Kiunga-Tabubil highway opened on Wednesday last week. This company will help locals to sell raw or melted gold dust
Oct 14, 2021 In Papua New Guinea (PNG), mining has been surrounded by controversy related to its environmental and social impacts for several decades. In this context, the research reported herein is an investigation of the way in which mining has impacted on poverty in two large mining regions at Ok Tedi and Porgera. We surveyed 609 households, of which 309 were in
Apr 09, 2013 location of ok tedi river _ tamaro_ alluvial gold project … – Docstoc. 1 Jul 2011 … The OK Tedi River alluvial gold deposit contains a total estimated … The alluvial mining operation will make use of a hydraulic excavator ….. using skid-mounted processing plants widely used in New Zealand and Australia. More detailed
The 1000 km long Ok Tedi/Fly River system receives about 66 Mt/year of mining waste from the Ok Tedi copper-gold porphyry mine. Mine input has increased the suspended sediment load of
For example, since its discovery in 1983, the Mount Diwalwal small-scale mining area in the Philippines has produced considerable mercury pollution, mine accidents, crime, and social disintegration (Beinhoff and Calvez, 2000; Manila Times, 2002). However, small-scale mining is difficult to track
Feb 08, 2017 3.5.5.3 Potential Acid and Copper Loads to the Ok Tedi from Bige Table 3.21 presents the predicted potential peak acid and copper loads from the East and West Bank stockpiles and Table 3.22 compares the loads from the combined Bige stockpiles with the total load from all mine derived sediments deposited in the Ok Tedi and Fly River catchments
For example, in Papua New Guinea the second largest copperproducing mine in the world, impacts the Ok Tedi River through mine waste that is dumped directly into the river (Wohl, 2006). Mountain
Scale is an important consideration in fluvial geomorphology, with process–form interactions occurring over a huge range of space and time scales. At one end of this range is the long-term evolution of the landscape. At the other are small-scale processes, such as the setting in motion of an individual grain of sand resting on the bed of a
