The hills are largely carboniferous limestone, which is quarried at several sites.從多處遺址的挖掘來(lái)看, 這片丘陵大部分屬石炭紀(jì)石灰?guī)r.In Early Carboniferous, Tianshan mountains entered an intraplate evolution stage.從石炭紀(jì)開(kāi)始天山地區(qū)進(jìn)入陸內(nèi)演化階段.WHERE HAINA...