Because the lithic artifacts represented every phase of the toolmaking ... The ancient ones knew it well. The sandstone cliff was a landmark visible for miles, the nexus of several trail systems. It ...

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The process unquestionably quickened and changed character with the wholesale burning of fossil fuels, or what we might term lithic landscapes. This combustion lies outside the old boundaries: It can ...

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The study of reservoir space development characteristics and the geochemical parameters of the Permian Longtan Formation in the southeast of the Sichuan Basin at Well X1 was analyzed by using core ...