Lake Vostoke: Discovery & Geological History

What is Lake Vostok?

Lake Vostok is the biggest of Antarctica’s lake just about 400 known subglacial lakes. Lake Vostok is situated at the southern Pole of Cold. The outer layer of this new water lake is roughly 4,000 m (13,100 ft) underneath the ice.

Lake Vostok Length and width

Estimating 250 km (160 mi) long by 50 km (30 mi) wide at its broadest point. It covers an area of 12,500 km2 (4,830 sq mi) making it the sixteenth biggest lake by surface region. With a normal profundity of 432 m (1,417 ft), it has an expected volume of 5,400 km3 (1,300 cu mi). It makes it the sixth biggest lake by volume.

Lake Vostoke
Lake Vostoke

Two segments of Lake Vostok

The lake is separated into two profound bowls by an edge. The fluid water profundity over the edge is around 200 m (700 ft), contrasted with about 400 m (1,300 ft). Somewhere down in the northern bowl and 800 m (2,600 ft) somewhere down in the southern.

Lake Vostok Name

The lake is named after Vostok Station, which thusly is named after the Vostok (Восток), “East” in Russian. The presence of a subglacial lake in the Vostok area was first proposed by Russian geographer Andrey Kapitsa. It happened in light of seismic soundings made during the Soviet Antarctic Expeditions in 1959 and 1964 to quantify the thickness of the ice sheet. The proceeded with research by Russian and British scientists prompted the last affirmation of the presence of the lake in 1993 by J. P. Ridley utilizing ERS-1 laser altimetry.

A team of Russian scientists completed the longest ever ice core of Lake Vostok

The overlying ice gives a consistent paleoclimatic record of 400,000 years. Although the lake water itself might have been segregated for 15 to 25 million years. On 5 February 2012, a group of Russian researchers finished the longest at any point ice center of 3,768 m (12,400 ft). And pierced the ice safeguard to the outer layer of the lake.

The primary center of newly frozen lake ice was acquired on 10 January 2013 at a profundity of 3,406 m (11,175 ft). However, when the ice was penetrated, water from the basic lake spouted up the borehole. Blending it in with the Freon and lamp oil used to keep the borehole from freezing. A new borehole was bored and a purportedly flawless water test was gotten in January 2015. The Russian group plans to ultimately bring down a test into the lake to gather water tests and silt from the base. It says that uncommon types of life could be found in the lake’s fluid layer, fossil water save. Since Lake Vostok might contain a climate fixed off beneath the ice for a long period of time. The circumstances could take after those of ice-covered seas estimated to exist on Jupiter’s moon Europa and Saturn’s moon Enceladus.

Discovery OF Lake Vostok

Russian researcher Peter Kropotkin previously proposed the possibility of new water under Antarctic ice sheets toward the finish of the nineteenth century. He hypothesized that the huge tension applied by the aggregate mass of thousands of vertical meters of ice could diminish the softening point at the most minimal parts of the ice sheet to where the ice would become fluid water. Kropotkin’s hypothesis additionally evolved by Russian glaciologist I. A. Zotikov, who composed his Ph.D. proposal regarding this matter in 1967.

Russian geographer Andrey Kapitsa

Russian geographer Andrey Kapitsa involved seismic soundings in the district of Vostok Station made during the Soviet Antarctic Expedition in 1959 and 1964 to gauge the thickness of the ice sheet. Kapitsa was quick to recommend the presence of a subglacial lake in the region, and the ensuing examination affirmed his hypothesis.

British researchers in Antarctica

Whenever British researchers in Antarctica performed airborne ice-infiltrating radar studies in the mid-1970s, they recognized surprising radar readings at the site which proposed the presence of a fluid freshwater lake underneath the ice.

University College London

In 1991, Jeff Ridley, a remote detecting expert with the Mullard Space Science Laboratory at University College London, guided the ERS-1 satellite to turn its high-recurrence cluster toward the focal point of the Antarctic ice cap. The information from ERS-1 affirmed the discoveries from the 1973 British surveys. However, this new information was not distribute in the Journal of Glaciology until 1993. Space-based radar uncovered that this subglacial assortment of new water is perhaps the biggest lake on the planet, and one of around 140 subglacial lakes in Antarctica.

Work Together

Russian and British researchers outlined the lake by coordinating an assortment of information. It includes airborne ice-entering radar imaging perceptions and space-based radar altimetry. It has affirmed that the lake contains a lot of fluid water under the more than 3-kilometer-thick (1.9 mi) ice cap. The lake has something like 22 depressions of fluid water, averaging 10 kilometers (6 mi) each.

Name Of Vostok

The station after which the lake is name celebrates the Vostok (Восток), the 900-ton sloop-of-war transport simply cruise by one of the pioneers of Antarctica, Russian voyager Admiral Fabian von Bellingshausen. Because the word Vostok signifies “East” in Russian, the names of the station and lake likewise mirror the way that they are present in East Antarctica.

Island in Lake Vostok

In 2005, researchers found an island in the focal piece of the lake. They name 90 Degrees East and Sovetskaya. They think that these Antarctic subglacial lakes may associate with an organization of subglacial streams. A place for Polar Observation and Modeling glaciologists recommend that a significant number of the subglacial pools of Antarctica are briefly interconnecting. Because of shifting water tension in individual lakes, enormous subsurface streams may out of nowhere structure and afterward power a lot of water through the strong ice.

Geological history

Additional data: Geology of Antarctica and Gondwana

Africa isolated from Antarctica around 160 million years prior, trailed by the Indian subcontinent, in the Early Cretaceous (around 125 million years prior). Around 66 million years prior, Antarctica (then, at that point, associated with Australia) actually had a tropical to the subtropical environment, complete with marsupial fauna and a broad mild rainforest.

The Lake Vostok bowl is a little (50-kilometer-wide (31 mi)) structural element inside the general setting of a few hundred-kilometer-wide mainland crash zone between the Gamburtsev Mountain Range. It is a subglacial mountain range and the Dome C region. The lake water is supportable on a bed of dregs 70 meters (230 ft) thick. It is offering the likelihood that they contain a one-of-a-kind record of the environment. And life in Antarctica before the ice cap formed.


Lake Vostok Station

The lake water is accessible to have fixed off under the thick ice sheet around 15 million years ago. Initially, it feels that similar water had made up the lake since the hour of its development. Giving a home time in the request for 1,000,000 years. Later exploration by Robin Bell and Michael Studinger. It is the Lamont-Doherty Earth Observatory of Columbia University. It recommends that the water of the lake is constantly freezing. And moving off by the movement of the Antarctic ice sheet. While supplanted by water softening from different pieces of the ice sheet in these high tension circumstances. This brought about a gauge that the whole volume of the lake supplier at regular intervals. Its powerful means home time.

Lake Vostok Temperature

The coldest normally happening temperature at any point seen on Earth.−89 °C (−128 °F), recorded at Vostok Station on 21 July 1983. The normal water temperature is around −3 °C (27 °F). It stays fluid beneath the ordinary edge of freezing over in view of high tension. It is from the heaviness of the ice above it. Geothermal hotness from the Earth’s inside warms the lower part of the lake. While the ice sheet itself protects the lake from cold temperatures on a superficial level.

Outrageous Climate

Lake Vostok is an oligotrophic outrageous climate. Estimating 2.5 liters (0.088 cu ft) of nitrogen and oxygen per 1 kg (2.2 lb) of water. It is multiple times higher than those normally found in common freshwater lakes on Earth’s surface. The sheer weight and tension around 345 bars (5,000 psi) of the mainland ice cap. It is on top of Lake Vostok is assessingible to add to the high gas concentration.

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