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齐国古刀币面文有“齐△邦(立长)(长)夻(大)(?)(刀)”一种,见于《古钱大辞典》838、840、845、848、851-853、857、863、867等,通称“六字刀”。△字,黄锡全先生《先秦货币通论》①第五章“刀币”据张颔《古币文编》所收39个字形,将其分为7种: 相似文献
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R. G. BEDNARIK 《Archaeometry》1992,34(2):279-291
A new calibrated method based on erosion phenomena is presented for the dating of petroglyphs (rock carvings and engravings) and geomorphic surfaces. In contrast to previous methods of petroglyph dating, which sought to determine the age of various mineral and organic deposits coating the art, microerosion analysis attempts to ascertain the time of mark production itself, by creating a geomorphologically based time frame. The method involves the establishment of calibration curves for the crucial variables to be considered. These are the rock type and climate of a particular region, microerosional indices and age. The theory, practical application, and prerequisites of the method are considered, and the paper concludes by defining the disadvantages and advantages of the method. 相似文献
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一前言《陶记》是中国第一部有关陶瓷生产技术、管理及其行销等方面的论著,对其进行深入的理解和断代有益于中国陶瓷史、科技史的研究,故我国老一辈陶瓷研究学者傅振伦、陈万里、冯先铭等先生都对《陶记》给以关注,傅振伦先生在耋耄之年(1979年)还对《陶记》进行了译注。约与《陶记》同时期,伊朗人阿布尔·卡西姆于1301年著有《阿布尔·卡西姆有关陶瓷的论 相似文献
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W. R. OWENS 《The Seventeenth century》2013,28(2):153-157
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E. AKIMOVA T. HIGHAM I. STASYUK A. BUZHILOVA M. DOBROVOLSKAYA M. MEDNIKOVA 《Archaeometry》2010,52(6):1122-1130
A new AMS radiocarbon date has been obtained from a Siberian human bone sample taken directly from a cranial fragment. The specimen comes from the north‐east Siberian site of Pokrovka 2 (55019′46.30″N, 92026′48.80″E). The remains consist of the anterior portion of the cranium or the superior part of the face; that is, the forehead and the roof of the eye sockets. Sadly, indifferent features of the frontal bone do not allow a confident diagnosis of the sex of the individual. The evidence suggests, however, that the remains are probably those of a young adult (teenager) and an anatomically modern human, rather than a Neanderthal. Radiocarbon dating was undertaken at the Oxford Radiocarbon Accelerator Unit (ORAU). The radiocarbon age determination of the bone fragment, 27 740 ± 150 bp (OxA‐19850), is one of the earliest direct dates for a modern human from Siberia. The Pokrovka cranial fragment dates to the middle Upper Palaeolithic of Eurasia and is broadly contemporary with the human remains from the famous eastern European site of Sunghir. When the radiocarbon age is compared with the Cariaco Basin 14C data set and the Greenland oxygen isotope record of NGRIP, it corresponds with Greenland Interstadial 5, a warmer phase of the Last Glacial period, although this is a preliminary conclusion, and is based on climate records that may or may not be wholly synchronous between the two locations. 相似文献
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