We are the first to apply the copper stress vegetation index (CSVI) on a remotely sensed image and the purpose is to verify the effectiveness of CSVI at the satellite-image scale. The study area was located at the Dexing Copper Mine, Jiangxi Province, China. First, the data preprocessing for the Hyperion image was conducted, including bands removal, radiometric …
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Abstract: The Dexing copper mine is the largest open pit copper mines in Asia, with mining and beneficiation history stretching back more than half a century; consequently it has large amounts of ...
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Dexing copper mine (DCM), situated in Jiangxi Province of China, is 200 km away from provincial capital city Nanchang.Mining production of DCM started in 1965 by underground mining. The open pit operation started in 1971, and currently produces some 36 million tonnes of crude ore annually, which positions among the largest open pit copper mine in Asia.
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Multi-level and Precise Evaluation of Slope Stability in Large Open-pit Mines: a Case Study at Dexing Copper Mine, China April 2021 DOI: 10.21203/rs.3.rs-409378/v1
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The wastewater source of 4# tailing pond in Dexing copper mine consists of alkaline flotation pulp and acid mine drainage (AMD) from the nearby opencast mine. ... the measured concentrations of heavy metals in the leachate would represent a maximum of the leaching level under the same conditions, when higher temperature was examined in the ...
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The Dexing Copper Mine is the largest outcrop copper mine in China, and the Dawu River crosses this mine area and drains into the Le'an River (Wu et al. 2009). The Yishan Lead-Zinc Mine is located ...
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This study re-assess the environmental impacts of the Dexing copper mine (the largest open-pit copper mine in Asia) on the Lean river and its two tributaries (the Dawu river and Jishui river) in the Jiangxi province, China, with particular focus on metal pollution as well as the effectiveness and side-effects of remediation activities. Results show that the Dawu river and …
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[Objective] In order to understand the interaction between heavy metal contamination and microbial diversity better, 16 wild field samples including tailing samples, near grain and vegetable soil samples were obtained from the 4 # tailing site of Dexing copper mine, Jiangxi province, China. On the one hand, number of culturable heterotrophic bacteria in samples was counted …
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While a few millimeters of sea level rise per year may seem small, scientists estimate that every 2.5 centimeters (1 inch) of sea level rise translates into 2.5 meters (8.5 feet) of beachfront lost along the average coast. It also …
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Global average sea level has risen 8-9 inches since 1880, and the rate is accelerating thanks to glacier and ice sheet melt. ... (1.5 degrees C), global mean sea level would rise at least 0.3 meters (1 foot) above 2000 levels by 2100. On a pathway with very high rates of emissions that trigger rapid ice sheet collapse, sea level could be as ...
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The city is situated around 2 meters below sea level and the lowest point in the ... point in the whole country is the tri-border area (a place where the Netherlands, Belgium, and Germany meet) – 323 meters above …
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The Dexing copper mine is the largest open pit copper mines in Asia, with mining and beneficiation history stretching back more than half a century; consequently it has large amounts of ore tailings.
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The No.4 tailings pond of the Dexing Copper Mine is the second largest in Asia. The tailing pond is a dangerous source of man-made debris flow with high potential energy. In view of the lack of effective and low-cost global safety monitoring means in this region, in this paper, the time-series InSAR technology is innovatively introduced to monitor the deformation …
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50 slope, referred to as Yangtaowu Slope in Dexing Copper Mine, was selected for the 51 demonstration of the accuracy of this approach. The results indicate that the adopted method
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The wastewater source of 4# tailing pond in Dexing copper mine consists of alkaline flotation pulp and acid mine drainage (AMD) from the nearby opencast mine.
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The No.4 tailings pond of the Dexing Copper Mine is the second largest in Asia. The tailing pond is a dangerous source of man-made debris flow with high potential energy. ... SBAS-InSAR Based Deformation Monitoring of Tailings Dam: The Case Study of the Dexing Copper Mine No.4 Tailings Dam Sensors (Basel). 2023 Dec 8;23(24):9707. doi: 10.3390 ...
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What Is My Elevation Quickly answer 'What is my elevation' using your device's location. What Is My Elevation: Find your current elevation based on your device's location.For best results, allow permission to use your location when prompted by your browser. The panel above the map will show your elevation, and a red marker will show your location on Google …
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Elevation calculator: Find your current elevation, an address, or a point on the map
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These scientists project that global mean sea levels will rise almost 1 foot (0.28 meter) above 2000 levels by 2050—and above 3 feet (1 meter) by 2100. This is our "intermediate" scenario.
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Most recently, in July 2019, it was reported that a spill from a tailings dam at the Cobriza copper mine led to the Mantaro River being severely polluted with cyanide up to 375 …
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Based on 20 copper mine tailings dam failures, we found that ~ 38% of the tailings volume stored in the dams was released into the environment, whereas 24% of the stored …
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Dexing Copper Mine in Dexing City is the largest open-pit copper mine in Asia and one of the eight super-large porphyry copper mines with reserves of more than 10,000 tons in the world.
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Located in Dexing City, Jiangxi Province, China (Fig. 1), the Dexing copper mine stands as the largest open-pit copper mine in the country (Jiang et al., 2021b). Initiated in 1958, the mine has witnessed over three decades of continuous, large-scale open-pit mining. ... which ranged between 1.24 and 5.31%, indicating a high level of precision ...
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The depth of the mine ranges between 8,040-4390 ft (2.5-1.3 km) above sea level. What is the history of the Bingham Canyon Mine? ... It was originally opened as a gold and silver mine in 1906, but it soon became a …
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The Dexing copper mine is located in Dexing City, Shangrao Region of Jiangxi Province in China (29°02′N, 117°43′E). The study area covers 100 km 2, within an elevation range of 65–500 m, and over a terrain characterized by low hills with slope angles of 20–40°. The groundwater level of the area is approximately 30 m.
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The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic system, vertical datum). Elevation, or geometric height, is mainly used when referring to points on the Earth's ...
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Assessment of heavy metal concentrations in roadside soils and plants around the Dexing copper mine: implications for environmental management and remediation Environ Monit Assess . 2024 Feb 10;196(3):251. doi: 10.1007/s10661-024-12422-7.
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The Quellaveco mine is located at the high altitude of 3,000 to 3,500 meters above sea level and required significant investment in road and water infrastructure over a geographically widespread area spanning roughly 150 kilometers from the mountains to sea level.
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mines: a case study at the Dexing Copper Mine, China Shi‑Gui Du1 · Charalampos Saroglou2,3 · Chen 4 · Hang Lin4 · Rui Yong1 Received: 8 April 2021 / Accepted: 12 January 2022 / Published online: 2 February 2022 ... The above-given brief background indicates that open-pit mine slope stability is a very complex problem. In this study ...
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SBAS-InSAR Based Deformation Monitoring of Tailings Dam: The Case Study of the Dexing Copper Mine No.4 Tailings Dam. Sensors 2023, 23(24), 9707; ... what rate of movement would trigger an alarm level? ... Also, show some critical dimensions on Figure 2. Is the height really 208 meters? Text on line 505 and 506 - "...expansion coefficient of the ...
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