Gorely volcano: the mystery of two lakes
Gorely volcano - active volcano in the south of the Kamchatka Peninsula, belonging to the Eastern Kamchatka volcanic belt. Gorelaya Sopka (the second name of the volcano) - a majestic natural monument just 4 hours drive from Petropavlovsk-Kamchatsky.
Gorely unlike most volcanoes of Kamchatka (Avacha, Koryak, Kozelsk, and others.) Is not a conical mountain.
To more accurately reflect its full name of contemporary structure of the volcano in the form of a long mountain massif - Goreliy mountain range. Mountain range formed by the merger of several volcanic cones, it reaches a height of 1829 meters and has a total area of over 150 square kilometers.
About forty thousand years ago on the site of the volcano Gorely was a huge shield volcano, the diameter of the base of which is 30 kilometers away. Over time, its apical part fell under its own weight, it was formed caldera 10 × 14 km. It is bordered by the remains of an old volcano in the form of a low rocky ridge. From the bottom of the caldera (the northern and southern parts of it is flat) eruptions continued through a chain of appeared craters. Craters "have overlapped" each other and growing cones merged. Thus was formed the modern and elongated mountain range covered with sand, slag and layers of hardened lava, which continues the activity of more ancient volcanic center.
That is why Goreliy has not one but eleven craters located on the top of the perimeter of the three cones. In the west of the ridge is a rocky crater West, its bottom covered by glacier, giving rise to a stream. It, in its turn flows into the north-western part of the caldera, on the way forming a series of small waterfalls. Another interesting crater The cylinder with its proper rounded shape, the diameter of which is 40 m. The crater called Crater's Nest is a kind of "family": at the bottom of the old crater there are two young. Gluboky and narrow crater Shchel have an elongated shape.
Photos from the top of Gorely volcano
Several craters of Gorely volcano from among those in which committed the historical eruptions are filled with acid lake. This is the eastern crater Blue Lake, on its bottom there is a lake of blue color, surrounded by steep cliffs and partially covered with floating ice. On 75-meter depth of the crater Bowl there is a lake with water in the sun acquiring a violet shade. Some lakes formed as a result of the lack of runoff during snowmelt.
During the last 150 years eruptions of the volcano Gorely were observed only 7 times. Since the end of the last century were several weak eruptions, consists mainly of emissions of gases, ash and sand to a height of several hundred meters. The last activity of the volcano in summer 2010 led to a drop in lake levels, fluctuations of soil and vapor emissions that were visible in Petropavlovsk-Kamchatsky. At the moment, is taking place a weak fumarolic activity in the crater Activny.