Gyratory Crushers of the Sierra Pinacate, Sonora
A unique grinding tool, termed a "gyratory crusher," was developed very early in Phase I of the Amargosan-Pinacateño occupation of the Sierra Pinacate, an isolated ecological and archaeological enclave in extreme north-western Sonora, Mexico. The gyratory crusher resembles a perforated mortar, either in slab or block form, in which a …Web
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