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Team TFS
Team TFS
1)Iwate University, Shirakuchi 1715-2, Kurume 830-0062, Fukuoka, Japan, 2) Priority Organization for Innovation and Excellence, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan, 3) Graduate School of Science and Technology, Kumamoto University, 2-39-1, Kurokami, Kumamoto 860-8555, Japan, 4) Department of Earth Sciences, Graduate School of Natural Science and Technology, Okayama University, 1-1, Naka 3-chome, Tsushima, Kita-ku, Okayama 700-8530, Japan
Journal of Archaeological Science: Reports (2016), V6, pp547-556, doi:10.1016/j.jasrep.2016.03.026
Oxygen and nitrogen isotopic constraints to the origin of saltpetre in historic gunpowder prevailed during the 19th century in Japan
Chitoshi Mizota (1), Takahiro Hosono (b), Midori Matsunaga (3) and Toshiro Yamanaka (d)
Saltpetre (KNO3) is the major ingredient of gunpowder, which played a driving force in political changes during the late medieval to middle modern times in the world. The intrinsic isotopic parameters of the mineral are useful for elucidating the origin and following its marketing route. Dual isotopic analysis (oxygen together with nitrogen, as expressed by δ18O and δ15N notations, respectively) was made for nitrates from diverse gunpowder samples which prevailed during the 19th century in Japan. Three distinctive sources which represent Japanese domestic (characterized by low δ18O–low δ15N values), British Indian (characterized by clearly higher δ18O–higher δ15N values) and Atacama Desert nitrates (characterized by very high δ18O up to + 50‰ - δ15N = around 0‰) were determined by binary plotting. Some samples recovered from portable powder reservoirs for less developed guns tend to exhibit a small shift in δ15N value toward a British Indian origin,
  • IRMS
  • Gas Bench
  • O and N Isotopes
  • Gunpowder
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‎11-09-2021 04:03 AM
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