2021 年 71 巻 2 号 p. 75-102
Topics was limited from September 2020 to August 2021 compared with the previous years, because of the COVID-19 crisis. Remarkable topics should be taken up, however, for the exploration of mineral and energy resources in and by Japan as follows: 1) a Canadian exploration company drilled high-grade gold ore in southern Kyushu, while another Canadian exploration company in Hokkaido, 2) production of natural gas dissolved in water which was rich in iodine was commenced in Niigata, 3) high grade Cu-Au mineralization was found in the Mt Isa east area, 4) commercial oil and gas production was commenced from the Snorre and Duva oil and gas fields in Norwegian North Sea, and 5) oil and gas was found at an offshore oil and gas field in Malaysia.