黑曜岩作为石器原料具有锋利、硬度适中、便于加工等其他石料所不可比拟的优势。早在20世纪,Hurcombe、Mandujano等很多外国学者都对黑曜岩微痕进行了卓有成效的研究,而国内与之相比则缺乏相应的研究成果,特别是在吉林抚松西山旧石器遗址、吉林和龙柳洞旧石器地点,珲春北山旧石器地点、吉林延边石人沟旧石 Obsidian as a stone material with sharp, moderate hardness, ease of processing and other stones incomparable advantages. As early as in the 20th century, many foreign scholars such as Hurcombe and Mandujano conducted fruitful research on the trace of obsidian. However, compared with the lack of corresponding research results in China, especially in the Fusong Xishan Paleolithic Site in Jilin, Jilin And Longliu Cave Paleolithic sites, Hunchun Beishan Paleolithic site, Jilin Shirengou old stone