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- 1520568
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- 2022-6-4
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- 1970-1-1
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main idea: the examination method of a sculpture and the due result
structure:
p1. a trade of a sculpture
-details of the sculpture: 2meters high, more than 2500 years old, private collection of a Swiss person and that's why unknown to artist historians
-trade 8-12 mios dollars, draw great attention
p2. authentication process:
- participants of the process: e and h, the latter one is an expert
- isotope method to determine the age of the stone that used in sculpture
- age of the stone: seventh and sixth centuries b.c.
p3. the result:
-o12/ o18 and c12/c13, crust = interior = nature bone stone
-rule out two possibilities
- artificially replicated
- precipitated out of groundwater
p4. thickness of the stone can't be used to determine the age
- various factors can influence it: rainfall, composition of soil, groundwater, length of burial
- age range: several centuries - several millennia
new words:
putative: 假定的
quarry: 采石场;挖出
provenance: 起源,出处
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