In Elny in USA 15% of the chalcocite was oxidized in one year down to 15m depth.
在美国埃尔尼，一年中有15%的辉铜矿被氧化至15米的深处。
2
Chemical kinetics and thermodynamics of copper minerals constrain that chalcocite is main and ore zoning form in sandstone copper deposits.
铜矿物的化学动力学和热力学制约了砂岩铜矿中以辉铜矿为主及矿床分带的形成。
3
There are vertical zoning of mineralization, that is chalcocite in the upper, enargite at the elevation between 580 to 400m, and chalcopyrite below the 400m.