铜绿山古铜矿
Tonglushan ancient copper mine
铜山铜矿地质测量科
Geology and surveying bureau of Tongshan bronze mine
铜山铜矿石
changes in ore properties
安山岩
andesite
Anderton shearer-loader
andestie
early caiboniferous
geochemistry
Subject heading: Andesite
andesite aggregates