To address these questions, we monitored 50 abandoned mines using remote cameras in the northern Sangre de Cristo Mountains, Colorado, USA, for 25,201 camera days from May 2017 to August 2020. We monitored mines in 2 phases. During phase 1 (May 2017–May 2019), we monitored 30 randomly ...
In a typical year, several people die in accidents that occur in abandoned mines across the United States. Some of these deaths can be prevented if citizens know the danger of these properties; if landowners make better efforts to warn and limit access; and, if governments have improved ...
Founded in 1908 when a rail worker named Zacharias Lewala in the area discovered a diamond, the town enjoyed nearly fifty years of history until it was abandoned in 1954 when the diamond mines finally dried up.credit: codaRelevant Articles Wild West Bodie Ghost Town Varosha Ghost Town in ...
The methods that have been used, either singly or in combination, include loading out and cooling the burning material, installing fire barriers, surface sealing, and water and pneumatic flushing. 展开 关键词: coal, lignite, and peat abandoned shafts fires control coal mines usa mines north ...
Against a background of hydrodynamic conditions connected with abandoning of significant number of mines and vast water reservoirs forming within them, basic methods of the assessment of strength of safety pillars used in coal mines in the USCB are presented. In the light of geomechanical research ...
(Vermeulen et al.,2014). Moreover, isotopic techniques have been widely approached for some decades in studying mine water characteristics. In particular, many researchers used environmental isotopes to identify water sources in abandoned coal mines in China and the USA (Gammons et al.,2010; Qu...
Experimental/ mining seismic waves seismology/ coal-seam seismic waves abandoned underground mines detection in-seam reflection surveys transmission survey Hurley Virginia USA abandoned-mine voids seismic reflection processing transmission data reflection data void detection in-seam seismic methods hazardous areas...
Max Hottell recalled, “The Laredo Municipal Airport located on the Old Mines Road also had military operations on it in the late 1960s.The Air Force had a contract flight school operation using civilian contract instructors flying T-41 aircraft....
in relation to milieu conditions of tailing waters in abandoned uranium mines in Germany. In: Jarvis AP, Dudgeon BA, Younger PL (eds) Mine water—process, policy and progress, vol. 2. University of Newcastle upon Tyne Press, Newcastle upon Tyne, pp 9–18 Google Scholar Mkandawire M, ...
Abandoned Mine Drainage in the Swatara Creek Basin, Southern Anthracite Coalfield, Pennsylvania, USA: 2. Performance of Treatment Systemscoal minesdiversion welllimestone sandlimestone channellimestone drainwetlandA variety of passive and semi-passive treatment systems were constructed by state and local ...