The amazing and strange pictures taken by NASA in Siberia – Science – Life
An unusual event was captured in the photos by the Landsat 8 satellite, on both sides of the Marga River, in Northeast Siberia, in Russia.
Images taken by NASA for several years show a strange landscape of the area’s soil, as well It is not uncommon to find surfaces like the ones you can see in the photos. It’s like seeing polygonal, wavy-striped “graphics” with dark and light tones.
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As reported by NASA’s Earth Observatory, there may be many responses to this phenomenon.
Observatory scientists explain that the area is part of the Arctic Circle, thereforeThe air temperature remains below freezing for most of the year.
Additionally, it ensures that most of the land is covered with frozen soil, or frozen soil, which can extend hundreds of meters below the surface, and this ice can melt in short periods of time.
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So, when the floor thaws and freezes again in a cyclic manner, these strange designs known as “patterned floors” start to emerge.
Nevertheless, as they confirm from the observatory, “Studies have shown that these types of limbs generally occur on a much smaller scale and tend to go downward.” Geomorphologists state that “the nature of soil provides another explanation for the lines”.
In such cold regions the soil can become “glycols”, “these soils have” permafrost “in the upper two meters, often with layers darker and lighter than It has more organic matter or more minerals and sediments., The observatory reported.
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When the Earth freezes and thaws, a phenomenon called “cryogenic turbulence” occurs, which generates that over the course of the seasons, the Earth’s layers line up in striped patterns.
They also add, “Various types of tundra plants (lichens, low shrubs, and mosses) can grow preferentially in these Gelisol layers, accentuating the streaks we see from above.”. However, this hypothesis has not been extensively tested.
On the other hand, geologist Thomas Crawford of the United States Geological Survey called the ground pattern “cake layer geology”.
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Based on the various theories, make sure that it is a phenomenon related to the climatic factors provided by the topography of the place
This is that “when snow melts or rain falls, pieces of sedimentary rock are dislodged and sent into the valleys below. Such erosion can cause an overlapping pattern that appears as streaks from space resembling a slice of layered cakes,” according to his author.
What’s more, “The shape of the erosion pattern looks a little different from standard sedimentary erosion, but I assume it is caused by permafrost. Rivers are eroding across frozen ground. There may also be a frost effect affecting the terrain.”Said Walt Meyer, a snow specialist at the National Ice and Snow Data Center in the United States.
In fact, based on the various theories, it is confirmed that it is a phenomenon related to the climatic factors provided by the topography of the place. Experts are still investigating whether, in fact, it is a “permafrost” derivative effect on soils.
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