柿子滩遗址位于山西吉县清水河流域,属于旧石器时代晚期遗址。出土石制品以燧石为主,但石英岩占据一定比例,对石英岩石料的产地研究成为了解人类行为信息的一个重要方面。对遗址所在区域的地质勘查结果显示,柿子滩遗址的石英岩石料采集于当年的黄河河漫滩,而这些石英岩砾石的地质来源为清水河入黄河口处上游的上三叠统须家河组顶部、下侏罗统珍珠冲组和中下侏罗统自流井组底部地层。对现代黄河河漫滩砾石的地质采样分析认为,燧石石料的稀缺使得石英岩成为石制品制作中必要的石料补充。 Persimmon Beach site is located in Ji County, Shanxi Qingshui River Basin, belonging to the late Paleolithic site. Excavated stone products are mainly chert, but quartzite occupies a certain proportion. The study on the origin of quartz rock material becomes an important aspect of understanding human behavior information. The geological survey of the area where the site was located showed that the quartz rock materials from the site of the persimmon beach were collected in the floodplain of the Yellow River that year. The geological origin of these quartzite gravels is the top of the Upper Triassic Xujiahe Formation upstream of the Yellow River estuary , The lower Jurassic Pearl Chong Group and the Middle-Lower Jurassic Artesian well bottom formation. Geological sampling analysis of the gravel in the floodplain of the Yellow River nowadays suggests that the sclerosis of the chert stone makes quartzite the necessary stone supplement in the manufacture of stone products.