Experts in China have entered 72 petroglyphs(巖畫),an ancient rock art dating as far back as the Paleolithic (舊石器時代的) Age,into a digital image database after two years of fieldwork.Those petroglyphs are scattered across Northwest China's Gansu Province,a province that is known for these ancient rock paintings.More than 200 petroglyphs have been found across the province to date.

Experts explained that the database,which is supplemented by additional materials related to these ancient petroglyphs,will make it more convenient for archaeologists to carry out research and can also be used to provide information for touring exhibitions.

Most of the Gansu petroglyphs have been found deep among mountains and valleys where people seldom set foot.Due to the remote location and vast distribution of these petroglyphs,it is extremely difficult for archaeologists to carry out research and conserve the sites.

Rock paintings are history books that vividly reflect the life of our ancient ancestors,and are part of the precious cultural heritage of mankind as well.Most of the rock paintings in Gansu are found along the Yellow River,making them a historical imprint of Yellow River culture.A majority of the rock paintings depict people with weapons and hunting dogs chasing animals such as deer,or scenes of people farming.

“Due to natural erosion,the disappearance of these petroglyphs and murals cannot be changed.The digital transition will offer a chance for a future touring exhibition,”Dong Hao,a Beijing-based archaeologist,said.

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Why is it difficult for archaeologists to carry out research and conserve the petroglyph sites?

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