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Our country north comes up out of land Gu Yu is caving cliff to show Shi Yu most
From;  Author:Stand originally
Liaoning saves jade of caving cliff of caving cliff county is our country extract and use the earliest jade, if our country north sends disinter in relics of burrow of ancient mankind of hill of Liaoning small Gu be apart from today jade of 20 thousand years piece, distant is mixed on the west of disinter of hair of ministry of Inner Mongolia southeast be apart from today 8000 ~ the flourishing depression culture before 5000, all be caving cliff jade. Department of Wang Shiqi of ground-to-air college professor, archaeology teachs Beijing University a recent research makes clear the person such as Zhao Chaohong, the Gu Yu that the our country north such as flourishing depression culture, red hill culture comes up out of land belongs to caving cliff to show Shi Yu mostly, is not all the time since the caving cliff serpentine that people place thinks jade. Wang Shiqi is being accepted " scientific times " when interviewing, say, specification of result of this one research is in our country of The Neo-lithic Age northward ancient time first civilian to caving the understanding of cliff jade, development is mixed use already had higher level.
Wang Shiqi says, serpentine formal name is called magnesian silicate, formal name showing stone calls calcium magnesian silicate. Caving cliff serpentine jade and Shan Shiyu are corrode of qualitative Dali cliff changes and become by carbonate, these two kinds of jade originate in caving cliff county inside two different gully. Look from physico-chemical property, both special on color, configuration likeness; Nevertheless, shan Shiyu's hardness is taller than the hardness of serpentine jade, proportion is larger also, so both distinguish more easily still. As we have learned, to jade of archaic jade article the research of makings producing area is the main task that archaeological bound pays close attention to very, but judge Shan Shi kind Gu Yu's producing area is a more complex issue however. From theoretic tell, the Shan Shiyu that each district place produces is identical on main physico-chemical character, distinguish hard, but the geological environment background that forms as a result of its differs somewhat, show a few apparent differences in certain feature respect, these features can say for " trait of producing area character " or " dactylogram feature " . Hardness proportion is big, large, show Shi Yu to distinguish the character trait at serpentine jade just about. Before this, the Guyu that already the expert comes up out of land to our country north had relevant research, but the conclusion that reach is the Gu Yu that our country north comes up out of land belongs to caving cliff serpentine more jade. The person such as Wang Shiqi, Zhao Chaohong checked the ancient jade feature that already came up out of land afresh, through Gu Jinyu the character trait contrast of stone analyses discovery, the Gu Yu great majority that our country north comes up out of land belongs to caving cliff to show Shi Yu, is not all the time since the caving cliff serpentine that academia place thinks jade. In addition, also hostage doubt says, the Gu Yuji producing area that our country north comes up out of land can be Xinjiang with cropland. To this, the person course such as Wang Shiqi considers to discover, the value has time of caving cliff Shan Shiyu and Xinjiang and the color that cropland shows stone jade, isotope and oxygen isotope apparent difference, can be a basis with these character traits, to our country source source of Gu Yu undertakes judging. The conclusion that studies the analysis reachs from this shows ancient jade of our country north should belong to caving cliff to show Shi Yu likewise, is not show Shi Yu with cropland.
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