1. N. V. Astakhova, O. N. Kolesnik, and V. T. S”edin, Vestn. Kamchatskoi Reg. Assots. Uchebn.-Nauchn. Tsentra Nauki Zemle, No. 16, 152–166 (2010).
2. L. E. Shterenberg, V. A. Aleksandrova, I. F. Gablina, et al., Tikhookean. Geol., No. 1, 125–128 (1986).
3. O. N. Kolesnik, V. T. S”edin, A. N. Kolesnik, et al., Dokl. Earth Sci. 487 (1), 786–791 (2019).
4. F. V. Chukhrov, A. I. Gorshkov, and V. A. Drits, Manganese Supergene Oxides (Nauka, Moscow, 1989) [in Russian].
5. I. Kostov, Mineralogy (Oliver and Boyd, Edinburgh, 1968).