University of Tokyo Radiocarbon Measurements IV

Radiocarbon - Tập 13 Số 1 - Trang 97-102 - 1971
Hiromi Kobayashi1, Yasuko Matsui1, Hisashi Suzuki1
1Carbon Dating Laboratory, University of Tokyo, Tokyo, Japan†

Tóm tắt

The C14 measurements reported here were made in this laboratory between January 1969 and July 1970. Details of our apparatus, sample preparation, and measuring procedure were described in R., 1968, v. 10, p. 144–148. A change has been made since January 1969: strontium carbonate is reduced to strontium carbide with a mixture of 60g of SrCO3 to 40g of Mg-powder (<200 mesh) instead of 60g of SrCO3 to 50g of Mg-powder (<50 mesh).

Từ khóa


Tài liệu tham khảo

10.1017/S0033822200011395

10.1007/BF02597139

Akutsu, 1964, The geology and paleontology of Shiobara and its vicinity, Tochigi Prefecture, Sci. Rept., Tohoku Univ., ser. 2, 35, 211

10.1017/S0033822200019986

10.1017/S0033822200000898

Tsuya, 1929, Volcanoes of Kozu-shima, Tokyo Univ. Earthquake Research Inst. Bull., 7, 269

Suzuki, 1970, The Amud man and his cave site

Thông tin
Thông tin xuất bản

Radiocarbon

Tập 13 Số 1

97-102

Thông tin tác giả