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Ore Deposit Geology Lab (Nakanishi Lab)
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The lab explores ore deposits and the history of mining technology through analysis and fieldwork.
AboutAbout the lab
Analyzing ores to explore ore deposits and the history of technology
The Ore Deposit Geology Lab (Nakanishi Lab) studies ore deposits, based on trace element analysis of rocks using inductively coupled plasma mass spectrometry (ICP-MS) and X-ray fluorescence (XRF).
Applying the background and research methods of ore deposit geology and resources engineering to the history of technology, the lab scientifically verifies the historical mining and smelting technologies of mines in Japan.
Overseas, the lab is studying orogenic gold deposits in Mongolia and porphyry copper deposits in northeastern Cambodia.
Associate Professor Tetsuya Nakanishi belongs to the University Museum and holds a concurrent appointment in the Department of Earth Resources Engineering, Graduate School of Engineering.
Key terms
- Ore deposit
- A place where useful elements such as gold and copper are concentrated enough to be mined
- Fluid inclusion
- A tiny droplet or bubble of liquid or gas trapped inside a mineral
- Smelting
- Extracting metal from ore
ResearchResearch themes
Trace element analysis is an essential technique for handling geochemical samples. The lab uses this analysis in research on gold deposits and in the scientific verification of historical mining technology.
Scientific Verification of the History of Mining Technology
Rather than relying only on written records, the lab analyzes actual ores, slag, and smelting waste to scientifically verify mining and smelting technologies. It also studies the Iwami Silver Mine, the Naganobori Copper Mine, and the Sado Gold Mine, and estimates the sources of materials using lead isotope ratios.
Orogenic Gold Deposits in Mongolia
In collaboration with researchers at the Mongolian University of Science and Technology, the lab is attempting to evaluate the nature and origin of mineralizing fluids using fluid inclusions, and to estimate the timing of mineralization by Ar-Ar dating.
Porphyry Copper Deposits in Cambodia
Since 2016, the lab has been investigating porphyry copper deposits in northeastern Cambodia together with doctoral students.
MembersFaculty
- Associate ProfessorTetsuya Nakanishi
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The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
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