千万年前人类的活动,虽被消逝的时间所湮没,但其活动的遗迹却大量存留在古老的地层里。采煤开凿的井穴,和其他许多遗迹一样,在经历了无数个世纪的风雨沧桑之后,有的掩没在表土层下,有的露痕于山麓坡间,经考古发掘又重新露出昔日的风姿。 1988年,考古工作者在安徽南陵发现一处年代久远的“煤窿”引人注目。南陵,古为“坑冶之地”,用煤炼铜历史悠久。现已发现开采、冶炼铜 Human activities thousands of years ago, lost by the disappearance of time, but a large number of remains of their activities in the ancient strata. Like many other relics, after many years of wind and rain, some of them have been concealed beneath the surface soil and some have been exposed on the slopes of the hills. After archaeological excavations, they have been re-exposed Grace. In 1988, archaeologists found a time-honored “coal hole” in Nanling, Anhui, attracting attention. Nanling, the ancient “pit metallurgy”, with a long history of copper smelting. Has been found mining, smelting copper