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 …
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 …
Visualize and download global and local sea level projections from the Intergovernmental Panel on Climate Change Sixth Assessment Report.
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.
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.
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.
At the end of 2022 the dam crest elevation will be 973 meters above sea level, corresponding to heights of 172.5 meters and 164.5 meters for the East Dam and West Dam, respectively. The permitted elevation of 997 meters above sea level (corresponding to …
The Yangtaowu Slope in the Dexing Copper Mine was selected as a case study in this paper. The slope, striking near east–west and dipping to north, has a height of 290 m, a …
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 ...
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 ...
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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[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 …
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 ...
The dam heights in instances of lead mine tailings pond failures ranged from 5 to 45 m, with the average being 19.2 m and the median being 15 m. Both the average and …
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 …
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 ...
The mine is located 170 kilometers (110 miles) southeast of Chile's port city of Antofagasta, in the hyper-arid northern Atacama Desert at an elevation of 3,050 meter (10,010 feet) above sea level. This astronaut photograph features a large impoundment area (image center) containing light tan and gray waste materials ("spoil") from of the ...
Our altimeter determines the altitude above sea level in meters. This is also known as altitude above mean sea level (AMSL). The reference point for this measurement is sea level, which is why it's referred to as altitude above sea level. When someone asks about altitude, especially in the European region, they usually mean altitude above mean ...
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 …
The largest copper mine in China and one of Asia's largest is Jiangxi Copper's Dexing, which covers an area of more than 4,000 ha and has an annual output of more than 100,000 t, accounting for about a quarter of the country's copper output at its peak. In late 2021 leading Chinese autonomous mining truck technology group TAGE Idriver and Jiangxi Copper …
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.
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
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 …
This means that we obtained an ideal detection effect; (2) the surface-mining area was increasing from 1986-2020 in the Dexing copper mine, and the accumulation of mining damage is approximately ...
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.
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 ...
An investigation of concentrations of copper, cobalt and cadmium minerals in soils and mango fruits growing on Konkola copper mine tailings dam in Chingola, Zambia. Arch. Sci. 1, 2–5 (2017).
Elevation is a measurement of height above sea level. Elevation typically refers to the height of a point on the earth's surface, and not in the air. Altitude is a measurement of an object's height, often referring to your height above the ground (such as in an airplane or a satellite).
The deformation rates in the area range between −46 mm/yr and +13 mm/yr. The lowest value of −46 mm/yr is located near the dam's crest (blue triangle in Figure 5), while the …
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.
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
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 …
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.