USGS Interactive Coal Map of South America

As a result of a Latin American Coal Assessment, the USGS published the first Coal Map of South America (Weaver and Wood, 1994) and developed a cooperative inter-...作为拉丁美洲煤炭评估项目的成果，美国地质调查局（United States Geological Survey, USGS）发布了首份南美洲煤炭地图（Weaver与Wood，1994），并开展了一项合作性跨（原文未完整表述）相关工作。