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首页> 外文期刊>Geochemistry: Exploration, Environment, Analysis >Natural versus anthropogenic dispersion of metals to the environment in the Wulik River area, western Brooks Range, northern Alaska
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Natural versus anthropogenic dispersion of metals to the environment in the Wulik River area, western Brooks Range, northern Alaska

机译：在阿拉斯加北部布鲁克斯山脉西部的乌里克河地区，金属向环境的自然分布和人为分布

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摘要

Zinc–lead–silver mineral deposits in the Wulik River region, Alaska, contain an enormous accumulation of Zn. In addition to the giant deposits at Red Dog, at least nine other deposits are known. Natural weathering of these deposits has dispersed metals over a wide region over a long period of time (c. 10 000 years) through transport by stream and groundwater, stream sediments, formation of soils, and perhaps wind-blown atmospheric deposition from weathering of naturally enriched Pb–Zn surface deposits. Anthropogenic input also contributes metals to the environment. Mining of the Red Dog deposit, which began in 1989, produces fine-grained galena and sphalerite concentrates that are transported from the mine site by truck to a storage port facility. Wind-blown dispersion of concentrate dust along the road and around the port facility has been a source of local metal-rich surficial materials.
机译：阿拉斯加乌里克河 地区的锌铅银银矿床蕴藏着大量的锌。除了 在Red Dog的巨型矿床中，至少还有九个其他矿床 是已知的。这些沉积物的自然风化通过流和地下水的运输（流）在很长一段时间（约10 000年）中将 金属分散在很宽的区域内自然富集的Pb–Zn 表面沉积物的风化引起的沉积物，土壤的形成，可能还有风吹大气沉积。人为输入也会对环境造成金属 的影响。 于1989年开始开采的红狗矿床，生产出细粉方铅矿和闪锌矿精矿 ，它们通过卡车从矿场运至仓库 < / sup>端口设施。沿 沿道路以及港口设施周围风吹散的粉尘一直是当地 富含金属的表层材料的来源。

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