| Petukhovskoye | |
| Other Name: | Петуховское |
| Coords: | 52.1069°N 79.1597°W |
| Pushpin Map: | Russia Altai Krai#Russia |
| Basin Countries: | Russia |
| Length: | 3.2km (02miles) |
| Width: | 1.4km (00.9miles) |
| Area: | 5.5sqkm |
| Depth: | 1.2m (03.9feet) |
| Elevation: | 145.7m (478feet) |
| Cities: | Severka |
Petukhovskoye (ru|Петуховское), also known as Petukhovo, is an alkaline lake[1] in Klyuchevsky District, Altai Krai, Russian Federation.[2]
The lake is located at the western edge of the Krai, only 7km (04miles) east of the Russia-Kazakhstan border. The nearest inhabited place is Severka 5km (03miles) to the east of the eastern end. Klyuchi, the district capital, lies 13km (08miles) to the north.[3]
Located in the Kulunda Plain, Petukhovskoye has an elongated shape, stretching roughly from northeast to southwest for approximately 3km (02miles). The lake dries during summers of drought, becoming a salt pan. Salt was mined in the lake in the past. The indicator minerals in the sediments of the lake are pyrite, disordered Ca-smectites, and dolomite, the latter being markedly predominant, especially in the lower part of the sediment section. The water has a mineralization of 24.3g/l and a pH of 9.8.[1]
Metagenomic analyses of lake samples collected in July 2016 indicate the presence of archaea belonging to the Lokiarchaeota group (MAG: Ca. Lokiarchaeota archaeon isolate CSSed165cm_327R1) among other microbes.[4] [5]
Lake Gornostalevo lies 17km (11miles) to the south and Kurichye 21km (13miles) to the ENE. 24km (15miles) to the northeast lies lake Petukhovo, near Petukhi.[3]
The lake is surrounded by forest steppe. There are also sand dunes.[2] [6]
