黑龙江省北部风化壳的形成及其对砂金成矿的作用

Formation of Residuum and Its Role on the Gold placer Mineralization in the North of Heilongjiang Province

黑龙江省北部风化壳的形成及其对砂金成矿的作用宋长春张宝林（中国科学院长春地理研究所，长春１３００２１）关键词风化壳砂金次生长大储集体黑龙江省北部地区第三纪准平原化过程形成了广布的风化壳，在部分区段风化壳中储集有大量的金质，表现出明显的金及伴生元素地球...

Residuum are widely developed during the Tertiary peneplanation period in the north of Heilongjiang Province. The paper points out that the gold containing residuum is the most important mineral sources of the gold placer in this area. Fine gold was secondarily enlarged at some physical chemicalc environment, and then carried, precipitated and concentrated by mechanical weathering, and formed the gold placer deposits at the end. In addition, primary gold deposits and gold placer which developed in the same area may not have any relationship between them