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This Sea Level Rise Technical Report provides the most up-to-date sea level rise projections available for all U.S. states and territories; decision makers will look to it for information. This multi-agency effort, representing the first update since 2017, offers projections out to the year 2150 and information to help communities assess potential …
Abstract: Taking the Dexing Copper Mine in Jiangxi Province, China as an study area, we used the long-term sequence summer Landsat images in 2002–2019 to investigate the variation of vegetation growth status and their ecological restoration effects. According to the specific situation of the study area, the Green-Red Normalized …
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 …
On the other hand, as a super-large copper mine in China, Dexing Copper Mine has become the largest open-pit copper mine in Asia after nearly 60 years of development, currently producing 36 million tons of raw ore per year [[21], [22], [23]].
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 …
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.
Dexing copper mine is an open pit copper mine located in Dexing, Jiangxi Province. It is one of the major copper mines in China and operates two mining sites (Tongchang and Fujiawu) and two concentrators (Dashan and Sizhou).
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. …
1 Multi-level and precise evaluation of slope stability in large 2 open-pit mines: a case study at Dexing Copper Mine, China 3 4 Shi-Gui Du1, Charalampos Saroglou2,3, Chen4, Hang Lin4, Rui ...
The calculation method and parameter determination of slope stability should be based on the analysis of slope failure mode (The National Standards Compilation Group of …
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 …
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, …
The Dexing porphyry copper ore mine is located in the Qin-Hang metallogenic belt between the Yangtze block and the Cathaysia block. It is a giant porphyry copper mine in China, including 3 ore districts: Tongchang, Fujiawu and Zhushahong. Our analyses of Re in molybdenite indicate that the ore-forming material of the copper ore …
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 …
The research results can provide data support for safety management of No.4 tailings dam in the Dexing Copper Mine, and provide a method reference for monitoring other similar tailings dams ...
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 ...
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 …
In total, 1400 tailing samples from 35 drill cores were collected from the 1 tailings pond at the Dexing copper mine. All samples were analyzed to determine their …
Above level 1970 m, a typical open-pit mining method will be used for the shallow ore body. Below level 1970 m, an underground mining method will be used to …
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 …
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
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.
The Dexing porphyry copper ore mine is located in the Qin‐Hang metallogenic belt between the Yangtze block and the Cathaysia block. It is a giant porphyry copper mine in China, including 3 ore districts: Tongchang, Fujiawu and Zhushahong. Our analyses of Re in molybdenite indicate that the ore‐forming material of the copper ore …
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.
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 copper mine after large amounts of copper ore were discovered nearby. In 1911, the Utah Copper Company purchased the …
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 …
The total weight of the copper metal within the WRD in Dexing exceeds 1.2 million tonnes. The exploitation of waste rock by traditional method was not economical, but dump leaching has the advantages of low investment, better working conditions, and lower energy consumption (Wu et al., 2007).In order to extract copper metal from those …
As two major branches of the upper reach of the Lean river, the Jishui river (39 km long, 19.3 m/s of current velocity) and the Dawu river (14 km long, 0.3–1.5 m/s of …
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 …
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 …