A pseudocrater looks like a true volcanic crater, but is not. These distinctive landforms are created when flowing hot lava crosses over a wet surface, such as a swamp, a lake, or a pond causing an explosion of steam through the lava.
The intense fumes crack through the lava surface place in a way just like a phreatic eruption, and traveling waste develops up crater-like function which can appear very just like actual volcanic craters. Pseudocraters are also known as rootless cones, since they are recognized by the lack of any magma gateway which joins below the surface of the earth.
A traditional area for pseudocraters is the Lake Myvatn place of north Iceland that was established 2,300 decades ago by basaltic lava eruption. The lava ran down the Laxárdalur Area to the lowland simply of Aðaldalur where it entered the Arctic Ocean about 50 km away from Mývatn.
There was a huge lake in the place at time, a forerunner of the present-day Mývatn. When the radiant lava experienced the lake some of the water-logged lake sediment was stuck beneath it. The following vapor explosions ripped the lava into little items which were tossed up into the air, together with some of the lake.
By recurring explosions in a variety of places, categories of craters designed up and now control the scenery on the coast of Lake Mývatn and also type some of the isles in the lake. The Myvatn pseudocraters happen in several categories around the lake and as isles within the lake.
A variety of such craters at Skútustaðir on the southern coast of the lake is secured as a organic monument and is visited by tourists. Other pseudocrater categories in this lava area are in the Laxárdalur Area and Alftaver area. Pseudocraters have also been found in the Athabasca Valles area of Mars, where lava moves superheated groundwater in the underlying rocks.
The Pseudocraters Of Iceland
Source : wikipedia