What's Under The Earths Crust?

It had been a common belief that there are just six continents on our planet. These are the well known Eurasia Africa, two Americas, Australia, and Antarctica. But at the end of the 1970s, scientists made a sensational discovery by identifying two more continents under the Earth's crust at a depth of between 20 503,000 meters or at 200 to about nine 840 feet, each of which is 100 times higher than Mount Everest.

These findings can offer some insight into what happened on earth billions of years ago, this could potentially pose a great fire danger to all of humanity. However, over the more than 30 years since their discovery, scientists have only managed to slightly raise the veil of secrecy over these underground formations nicknamed for their soft Lumbee shape the blobs.

We know much more about the surface of the sun, moon, and Mars about what's happening under our state's Paula Cole Meyer, a researcher at the University of London. This is due to our limited ability to study the depth of the center of the earth.

So what are these blobs? Like? Are they really continents? And what role do they play in the face of our planet?

One of these blobs is located under the Pacific Ocean and the second under Africa and partially under the Atlantic Ocean. They are so large that if they were on the surface of the earth, the International Space Station would have to fly around them.

They were found using the seismic tomography method, which was new at that time, anomalous zones slow down the movement of seismic waves, hence their technical name is large, low shear velocity provinces.







Moreover, they presumably consist of rocks like the storm Rounding mental, but have a higher temperature and mass exactly what kind of rocks they are dense and heavy or porous lava as the earth layers above has also not been established. The question of the density of the underground contents is the main focus for today. Most people know about the tides of the ocean. But

not everybody has heard that the cosmic forces that caused them also caused the Earth's crust to rise and fall twice a day with an amplitude of up to 40 centimeters or 15.7 inches.

Scientists notice that the oscillations above the blobs are much stronger, which led the assumption that the underground confidence is much less dense than the surrounding matter what is their connection with the rest of the planet.

At first glance, the structure is simple. It consists of the Continental and oceanic crust the upper and lower mantel together accounting for 70% of the Earth's mass and more than 80% of its volume and the core also consisting of two parts the molten external core and the solid internal core.

Also, the crust is divided into lithosphere plates that drift relative to each other. But according to scientists, this wasn't always the case. According to Scott Wakeham of the University of Texas and his colleague, at the very beginning of its existence, the earth was covered with a monolithic crust similar in structure to the upper layer of the Venus lithosphere.

Michael Brown of the University of Maryland at College Park compared the crust of the period to the lid on a pot whose contents were slowly heated. This hypothesis is supported by the most ancient continental rocks, the so-called gray niceness found in the Western Australia shield, it turned out that they formed under tremely large mass swings in temperature and pressure and have an unusual isotopic composition, which is possible only if they have long been under the cover of the Earth's crust.

But we must also understand when and why this cover was ripped off, so that the crust split into place. The opinions about this differ. Some believe that this happened almost immediately after the birth of the planet. Well, others believe that it occurred only several hundred million years later.

Another proposed alternative is that the causes and external factor the impact of a large asteroid, comet or even a collision with a space object called feyza, from which it's believed that the moon was formed, but wantem believes that the movement of lithosphere plates started due to the internal processes of the earth.

In support of this he and his colleague's site and unusual Hole in oceanic basalt in the Caribbean, which appeared about 100 million years ago due to the hot flow of the molten metal rocks rapidly moving to the surface. simultaneously with its appearance, the tectonic plate on which it was located began to sink under the neighboring ones.

It turned out that the formation of such structures is quite capable of splitting large sections of the crust into place. Since the emerging magma weakens the rocks around the hole, turning it into a sort of funnel.

The required condition for the formation of such funnels is the low temperature of the crust in this area. Geologists from the University of California at Davis also studied the question of the rising of hot rocks from the core of the planet to the surface and concluded that it took place before the collision of the earth with feyza.

They gathered together data on geological samples from the Hawaii and I islands, the balcony islands in the Antarctic, Iceland and other regions where these rocks made their way through the crust in the form of lava and cooled samples contain ancient isotopes port types of atoms such as helium three, which were formed during the Big Bang.

Taking into account the zigzag nature of the magma plumes in the Earth's mantle. The scientists track the way in which rocks with primary isotopes reach the Earth's surface and thus found a connection with the anomalous continents in the area between the core and mental that is, according to these studies, the blobs are directly related to the beginning of the tectonic process.

Due to which the Earth's magnetic field was also formed by the transfer of thermal energy from the depth of the planet to the surface, which means that it also contributed the formation of life on Earth, otherwise our planet at that moment It would resemble Venus with its super high temperature and atmosphere consisting of sulfuric acid and carbon dioxide.

A new breakthrough in the study of underground anomalies was presented by one Maria tech mischenko from Oxford University in her 3d map of the continent under Africa per representation looks like a tree whose roots go to the center of the earth and numerous branches reach its surface right where the locations of active volcanoes are.

Scientists have so far refrained from definite conclusions but suggest that the underground continents stimulate volcanic activity on the planet and in particular to contribute to the emergence of active volcanoes that form chains of islands such as Hawaii, they appear to also be responsible for several super eruptions that happened millions of years ago, and almost every To all life from the face of the earth.

 As far as the origin of the underground continents, there's also no definitive answer. Some researchers believe that they could have formed when the basalt of which the Earth's crust mainly consists sank into the depths of the planet due to the high pressure at the junctions of lithosphere plates.

As they move deeper. These rocks under the influence of even higher pressures and temperatures encountered various reactions upon exit pair of a Skype calcium silicate was produced, which is considered the third most abundant mineral in the Earth's mantle at a depth of more than 660 kilometers or about 410 miles.

It's technically extremely difficult to study as properties since the mineral is stable only in the Earth's interior. But scientists still succeeded as a result of a challenging experiment. The results show that areas of abnormally low wave velocity are areas with moderate inclusion of processed oceanic crust.

However, this result contradicts the opinion of scientists who consider the underground continents to be the cause of the appearance of lithosphere plates and associate them with the hardening of the ancient ocean of magma on the surface of a young Planet 4.5 billion years ago, probably the truth, as always, is somewhere in between.

As for the future, scientists predict the unification of the currently existing continents into one supercontinent, as well as the possible death of all life on Earth due to the eruption of the supervolcano, Yellowstone Caldera, which is woken up three times in the past, and this occurs about once every 600,000 years.

The last eruption happened just 640,000 years ago. If the blobs are related to the movement of lithosphere, plates, and volcanism, then they will most likely be involved in these events. However, all of this is just an assumption.

According to scientists despite the fact that the underground continents are one of the largest objects inside the earth. We know almost nothing about their nature, origin, age or functioning. each new day can bring new discoveries such as the discovery of a lost continent under Europe, which we'll discuss in one of the next episodes.



What's Under The Earths Crust? What's Under The Earths Crust? Reviewed by Mahi Uddin on December 15, 2019 Rating: 5

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