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Application of micro-CT: a new method for stone drilling research
Yimin Yang1, Min Yang, Yaoting Xie
1Department of Scientific History and Archaeometry, Graduate University of Chinese Academy of Sciences, Beijing 100049, China.
Microscopy Research and Technique
|January 24, 2009
Summary
This study introduces micro computed tomography (microCT) as a novel, non-destructive method to analyze ancient stone drilling techniques. MicroCT successfully revealed intricate drilling marks, overcoming limitations of traditional microscopic observation.
Area of Science:
- Archaeological science
- Materials science
- Geology
Background:
- Stone drilling is a complex ancient technology for creating tools and adornments.
- Observing micro-scale drilling marks on small perforations is challenging using conventional methods like microscopy or SEM.
- Current methods for analyzing drilling marks, such as silicone rubber casting, can be difficult or ineffective for minute features.
Purpose of the Study:
- To introduce and validate a new non-destructive method for analyzing ancient stone drilling.
- To overcome the limitations of existing techniques in observing fine drilling details.
- To demonstrate the application of micro computed tomography (microCT) in understanding ancient stone drilling processes.
Main Methods:
- Development of an exclusive non-destructive method for observing drilling marks.
- Application of virtual 3D reconstruction using micro computed tomography (microCT).
- Analysis of drilling tool marks on the inner wall of a small perforation in an ancient stone artifact.
Main Results:
- MicroCT successfully enabled detailed observation of drilling tool marks within a small perforation.
- The study achieved virtual 3D reconstruction of the perforation.
- Analysis of the revealed marks allowed for the deduction of the relative drilling technique employed.
Conclusions:
- Micro computed tomography (microCT) is a powerful non-destructive technique for studying ancient stone drilling.
- This method overcomes significant observational challenges associated with small perforations.
- MicroCT holds great potential for advancing the understanding of ancient stone tool manufacturing and technology.
