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1998年9月，在洛阳市北郊北窑村的黄土地层中发现了丰富的旧石器，为研究黄土时期的人类生存环境提供了宝贵的材料。北窑遗址位于洛阳市河南岸的三级黄土堆积阶地，高于现代河床约20m。遗址地层如图所示，由上而下，第1层为灰黄色黄土，厚307m;第2层为棕红色古土壤，厚3．37m；
In September 1998, abundant paleoliths were found in the loess layer of Beiyao, northern suburb of Luoyang City, which provided precious materials for studying the human living environment during the loess period. Beiyao site is located in Luoyang City Henan bank three loess accumulation terrace, higher than the modern riverbed about 20m. The site strata shown in the figure, from top to bottom, the first layer of gray-yellow loess, thickness 307m; the second layer of brown red paleosol, thickness 3.37m;