...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mining Engineering >Reclaiming an abandoned placer mine site in Alaska
【24h】

Reclaiming an abandoned placer mine site in Alaska

机译：回收阿拉斯加一个废弃的砂矿矿场

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In 1992, the Alaska Department of Environmental Conservation received a grant from the Environmental Protection Agency (EPA) to fund the reclamation of an abandoned placer mine. The project also included the development of a water-quality and hydrologic-monitoring program. The grant was provided under Section 319 of the Clean Water Act and is administered through EPA's Region X Water Division. For the past 100 years, Alaska's interior has been the site of extensive placer-mining operations. Early surface and underground operations left small tailings piles, some of which are still visible. Dredging left larger tailings piles, similar to those in California and elsewhere. The only reclamation of these tailings involved use as road base and fill and other civil applications. Most active mines in Alaska are on state and federal lands. The standards of reclamation for mines on federal lands are established under US Mining Laws, 43 CFR 3809. They address only mines operated since 1981. Under a state statute passed in 1990, the Alaska Department of Natural Resources, Division of Water and Mining, has issued reclamation regulations. These regulations apply to sites on state, federal and private lands, but only those mined since Oct. 15, 1991.
机译：1992年，阿拉斯加环境保护部获得了环境保护局（EPA）的赠款，以资助填埋废弃矿山的开采。该项目还包括制定水质和水文监测计划。该赠款是根据《清洁水法》第319条提供的，并通过EPA的X区水务部门进行管理。在过去的100年中，阿拉斯加的内部一直是广泛的砂矿开采作业场所。早期的地面和地下作业留下了小的尾矿堆，其中一些仍然可见。疏left留下了较大的尾矿堆，类似于加利福尼亚和其他地方的那些。这些尾矿的唯一填海工程涉及用作路基和填土以及其他民用。阿拉斯加最活跃的地雷在州和联邦土地上。联邦土地上的矿山的填海标准是根据美国《采矿法》（43 CFR 3809）建立的。它们仅针对自1981年以来运营的矿山。根据1990年通过的州法规，阿拉斯加自然资源部水利和矿业部规定了发布了填海法规。这些规定适用于州，联邦和私人土地上的土地，但仅适用于1991年10月15日以来开采的土地。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号