Tumcha
| Tumcha | |
|---|---|
.jpg) | |
| Location | |
| Country | Russia |
| Physical characteristics | |
| Mouth | Iova Reservoir |
• coordinates | 66°40′28″N 30°40′20″E / 66.67444°N 30.67222°E |
| Length | 20 km (12 mi) |
Basin size | 5,240 km2 (2,020 sq mi) |
| Basin features | |
| Progression | Iova Reservoir→ Kovda→ White Sea |
The Tumcha (Russian: Тумча, Finnish: Tuntsajoki) is a river in the south of the Kola Peninsula in Murmansk Oblast, Russia. It is 20 kilometers (12 mi) in length. The area of its basin is 5,240 square kilometers (2,020 sq mi). The river originates in the confluence of the rivers Kutsayoki and Tuntsayoki and flows into the Iova Reservoir which is drained by the Kovda. A mineral, tumchaite, is named after the river.[1]
References
- ↑ Subbotin, Victor V.; Merlino, Stefano; Pushcharovsky, Dmitry Yu.; Pakhomovsky, Yakov A.; Ferro, Orazio; Bogdanova, Alla N.; Voloshin, Anatoly V.; Sorokhtina, Natalia V.; Zubkova, Natalia V. (2000-10-01). "Tumchaite Na2(Zr,Sn)Si4O11·2H2O—A new mineral from carbonatites of the Vuoriyarvi alkali-ultrabasic massif, Murmansk Region, Russia". American Mineralogist. 85 (10): 1516–1520. doi:10.2138/am-2000-1024. ISSN 0003-004X.