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在亚利桑那州东北部,卡延塔镇西南 48.3km处,有皮伯地煤矿公司经营的卡因 塔和黑迈萨两个露天矿,两矿比邻,共租地 64860平方英里,含煤面积15000(km)~2, 两矿专供州内耐威电站和莫海电站动力 用煤。 矿区属丘陵地形,海拔标高2128～2158 m,年平均气温0～15℃。煤层埋藏较浅, 煤层沿各丘陵四周出露地表,上复表土层厚 度4.6～6.1m。岩层厚度7.6～15.3m,各别 山脊部分有达36.6m。 区内共含六个煤层,有三层可采层,赋 存稳定,无大的构造,近似水平矿床,倾角
In northeastern Arizona, at 48.3km southwest of Cayananta town, there are two open-pit mines in Caineta and Blackmaila operated by the Peabody Coal Company, adjacent to the two mines with a total rented area of 64,860 square miles and a coal-bearing area of 15,000 (km) ~ 2, two ore for Nawe Wei power station and the Mohai power plant coal. Mining area is hilly terrain, elevation elevation 2128 ~ 2158 m, the annual average temperature 0 ~ 15 ℃. The coal seam is shallow buried. The coal seam exposes the ground surface all around the hills. The thickness of the upper surface layer is 4.6 ~ 6.1m. The thickness of the rock formation is 7.6 ~ 15.3m, with 36.6m in each ridge part. There are six coal seams in the area, three layers of recoverable layer, stable occurrence, no big structure, similar horizontal deposits, dip