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Difficulty: MediumArchaeological Dating and Contextual Analysis

Archaeologists excavating a Neolithic Liangzhu culture burial site in China discover a jade cong. Because jade is inorganic and cannot be directly dated using radiocarbon (14C^{14}\text{C}) analysis, which of the following methods must researchers use to determine the absolute date of the artifact?

  1. A
    Subjecting the mineral composition of the jade to radiocarbon dating to measure the decay of organic isotopes.
  2. B
    Applying stylistic analysis to assert that the cong's face-like motifs prove it was used exclusively as a shamanic mask.
  3. Testing organic carbon remains, such as charcoal or bones, found within the same stratigraphic layer of the burial.Answer
  4. D
    Analyzing the mortise-and-tenon joints of the tomb's stone lintels to calculate the exact structural load of the chamber.

Answer

Testing organic carbon remains, such as charcoal or bones, found within the same stratigraphic layer of the burial.
The correct answer is testing organic carbon remains found in the same stratigraphic layer. Because jade is an inorganic mineral, it cannot be dated directly using radiocarbon (14C^{14}\text{C}) analysis, which requires organic material. By dating organic matter (like charcoal or bone) located in the same stratigraphic level or burial context, archaeologists can establish an absolute date for the deposit, which provides the timeline for the jade cong.

Step-by-Step Solution

1
Identify the material properties of the prehistoric artifact being dated.
The jade cong is made of jade, which is a mineral (inorganic material) and does not contain organic carbon.
Radiocarbon (14C^{14}\text{C}) dating requires organic material to measure isotope decay.
2
Determine the appropriate method to establish an absolute chronology for inorganic materials in a stratigraphic excavation.
Archaeologists must date associated organic matter (e.g., charcoal, wood, or bone) found in the exact same stratigraphic layer.
This establishes the absolute date of the soil layer/burial context, thereby dating the inorganic artifact found within it.

Key Concept

Establishing absolute dating for inorganic prehistoric artifacts through the radiocarbon analysis of surrounding organic context.
Estimated Time:1m 0s
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Topics

Archaeological Dating and Contextual Analysis

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