Geology 2023, February

Geologists have discovered traces of a tsunami from the fall of the asteroid that killed the dinosaurs

Geologists have discovered traces of a tsunami from the fall of the asteroid that killed the dinosaurs

In the fossilized sedimentary deposits at the bottom of the former ocean, scientists noticed high folds that were left by the passage of a tsunami caused by an asteroid that crowned the Cretaceous-Paleogene extinction

Early Earth was bombarded with city-sized asteroids

Early Earth was bombarded with city-sized asteroids

Scientists have always assumed that in the early stages of its existence, our planet was attacked by large and small celestial bodies. But a new study showed that the number of these impacts could be 10 times more than previously thought, and some asteroids at the same time had a scale comparable to the city

It is shown that the Earth was ready for the "explosion" of life already 2.7 billion years ago

It is shown that the Earth was ready for the "explosion" of life already 2.7 billion years ago

A unique study of ancient diamonds showed that the chemical composition of the atmosphere of our planet, which makes it suitable for the active development of life, was laid down at least 2.7 billion years ago

Changing the Earth's orbit could have contributed to the emergence of complex life

Changing the Earth's orbit could have contributed to the emergence of complex life

Scientists have found that the change in the orbit of our planet may have triggered the emergence and development of complex life during the period of global glaciation

Geologists have proposed to extract valuable metals from volcanoes

Geologists have proposed to extract valuable metals from volcanoes

At a depth of a couple of kilometers under the volcanoes, reservoirs of hot and concentrated solution are formed, rich in copper, gold and other metals: they can be extracted from this liquid, at the same time receiving geothermal electricity

The earthquake was recorded for the first time from a hot air balloon. This technology will come in handy for Venus probes

The earthquake was recorded for the first time from a hot air balloon. This technology will come in handy for Venus probes

Engineers at NASA's Jet Propulsion Laboratory have developed and tested a method for recording tremors using instruments in balloons. In the same way, promising research vehicles, which will be located in the relatively safe upper layers of its atmosphere, can study the bowels of Venus. And it is not yet possible to place long-term seismometers on the surface of this planet

Loss of large lake discovered in East Antarctica

Loss of large lake discovered in East Antarctica

Scientists believe that melt water, which had accumulated for a long time in a deep lake on the surface of the Emery Glacier, split the ice mass and quickly flowed into the ocean

Scientists have found out where the water disappeared from the largest sea in the history of the Earth

Scientists have found out where the water disappeared from the largest sea in the history of the Earth

An international team of researchers has studied the geology and conditions for the existence of the largest sea in the history of the planet - Paratethys

The world's largest iceberg broke away from Antarctica

The world's largest iceberg broke away from Antarctica

A huge piece of ice floating freely in the Weddell Sea, located between the Antarctic Peninsula in the west and Cotes Land in the east, is almost twice the area of ​​the capital of Russia

Climate change threatens extreme floods in cities and small catchments

Climate change threatens extreme floods in cities and small catchments

Global warming cannot but affect the earth's climate, but how it will change specifically is difficult to predict. An international team of researchers analyzed more than one and a half hundred scientific papers to answer at least one question: will the risk of floods increase or decrease if the average annual temperature on Earth continues to rise? The result was, as is often the case, ambiguous, but the news is definitely bad for city dwellers

Shown that the continental crust arose 500 million years earlier than expected

Shown that the continental crust arose 500 million years earlier than expected

Scientists have found that the continental crust formed half a billion years earlier than previously thought. This is critical to understanding plate tectonics and biological evolution

The Earth's core can contain tens of times more hydrogen than the oceans

The Earth's core can contain tens of times more hydrogen than the oceans

Experiments have shown that the earth's core can contain a significant amount of hydrogen, which got there as a result of meteorite bombardments billions of years ago. If this hydrogen was not trapped in the core, the Earth may never have formed land and was a watery world

Anomalous drought awaits the US West. For the first time in history, the government prepares for water restrictions

Anomalous drought awaits the US West. For the first time in history, the government prepares for water restrictions

The US Bureau of Reclamation has published a two-year forecast of the hydrological situation in the Colorado River Basin. According to the available data, this year it will receive an incredibly small amount of water from mountain runoff and precipitation. Relevant Governments and Infrastructure Organizations Prepare to Declare a Declaration of Water Scarcity at the Federal Level for the First Time in United States History

Volcanologists warn of the danger of shallow reservoirs of magma

Volcanologists warn of the danger of shallow reservoirs of magma

Shallow and small magma reservoirs are rarely seen on seismographic surveys, but they can determine the activity of volcanoes

Research shows how natural earthquake blocker works

Research shows how natural earthquake blocker works

Scientists have discovered a natural "gateway" to earthquakes. They "stop" cataclysms and do not allow them to rise to a magnitude of 8 and above

Platinum Indicated Late Stone Age Disaster

Platinum Indicated Late Stone Age Disaster

Soon after the end of the ice age, a powerful blow from a celestial body hit the Earth. As a result, mammoths and other large animals began to die out. Let's try to figure out how and why this happened

Water circulation in the Atlantic drops to its lowest level in 1,000 years

Water circulation in the Atlantic drops to its lowest level in 1,000 years

The Gulf Stream and other currents of the Atlantic Ocean, the common system of which redistributes heat across our planet and has a great influence on the climate, now move more slowly than about 1000-1600 years ago

The oldest millipede in the world is estimated at 425 million years old

The oldest millipede in the world is estimated at 425 million years old

Scientists from Texas applied a new method of radioisotope analysis and specified the age of a centipede fossil found on a Scottish island. It turned out that she is 75 million years younger than previously thought

A fossil from the Jurassic period tells of a shellfish hunting for fish, as a result of which none of them survived

A fossil from the Jurassic period tells of a shellfish hunting for fish, as a result of which none of them survived

The fossil discovered in the south of England recorded a paleobiological event that happened about 200 million years ago, and became a unique illustration of how recklessly and cruelly ancient mollusks were hunted

Is it true that oil came from dinosaurs?

Is it true that oil came from dinosaurs?

Everyone knows that oil is hydrocarbons. But where did it come from? Is it true that of the dinosaurs? And how many millions of years is the oil from which gasoline and hundreds of other important things around us are made today? We figure out what oil reserves lie in Russia and how many of them remain, why they have not yet been extracted, and also how this is related to creatures that lived millions of years ago

Geologists have modeled the flow of iron lava "ferrovolcanoes"

Geologists have modeled the flow of iron lava "ferrovolcanoes"

Scientists for the first time examined the flows of iron lava, unlike the lava of molten silicates, which are ejected by ordinary volcanoes

Plate tectonics on Earth could have been triggered by an asteroid impact

Plate tectonics on Earth could have been triggered by an asteroid impact

The movement of the plates of the earth's crust could begin in the Middle Archean with the hit of a heavy asteroid in a thin section of the lithosphere

Geologists have discovered a "leak" of heavy iron from the core of the Earth

Geologists have discovered a "leak" of heavy iron from the core of the Earth

Laboratory experiments and computer simulations have shown that heavy isotopes of iron are capable of migrating from the earth's core into the mantle, and then being thrown out onto the surface with volcanic lava

Geologists Confirm Ancient Earth May Be Covered By Ocean

Geologists Confirm Ancient Earth May Be Covered By Ocean

In the era in which the emergence of life, the Earth could have practically no land

Another version has been put forward about how the Earth's atmosphere received oxygen

Another version has been put forward about how the Earth's atmosphere received oxygen

Scientists in the United States used groundbreaking techniques to figure out how the Earth's atmosphere was filled with oxygen billions of years ago

The powerful magnetic field of the young Earth could have been created by the cooling of the planet

The powerful magnetic field of the young Earth could have been created by the cooling of the planet

The Earth's magnetosphere was strong enough even before the planet had an inner core and the mechanism of the "geomagnetic dynamo" began to work: it seems that at the first stages it was fueled by a completely different mechanism

Young Earth's magnetic field explained by currents in silicate magma

Young Earth's magnetic field explained by currents in silicate magma

In the first billions of years of our planet's existence, its magnetic field could be created without the participation of the core - directly by molten magma

Geologists confirmed the super-rotation of the Earth's inner core

Geologists confirmed the super-rotation of the Earth's inner core

New accurate observations of seismic waves passing through the center of the planet have confirmed that its solid inner core is rotating slightly faster than the surface

The diamond withstood a record pressure of 20 million atmospheres

The diamond withstood a record pressure of 20 million atmospheres

To obtain exotic forms of carbon, scientists squeezed the diamond with record force, but it retained its structure even at the maximum pressure that was achieved

Huge reserves of fresh water have been found under Hawaii - and this is good news for all volcanic islands

Huge reserves of fresh water have been found under Hawaii - and this is good news for all volcanic islands

For a long time, hydrologists puzzled over the mystery of the island of Hawaii - for unknown reasons, there was much less water in its underground aquifers than it should be given the amount of precipitation. Now it has been solved: the study of the electrical conductivity of water at different depths off the coast made it possible to find whole underground rivers that emerge from the bottom at a distance of up to four kilometers from the coastline

The largest and rarest diamonds are formed in the bowels of the Earth, much deeper than usual

The largest and rarest diamonds are formed in the bowels of the Earth, much deeper than usual

Diamonds are formed at high temperatures and pressures in the interior of the earth. Most of them are born in the upper layers of the mantle, at the base of massive

Scientists have determined the possible age of the Yangtze River

Scientists have determined the possible age of the Yangtze River

The question of when the largest river in Asia formed has been the subject of controversy for over a century. Researchers from China and the Netherlands have shed light on this mystery

The catastrophe of the earth's atmosphere is predicted

The catastrophe of the earth's atmosphere is predicted

Simulations have shown that in a billion years, the atmosphere of our planet will experience dramatic changes and lose all its oxygen, throwing life back to the most ancient anaerobic forms

A giant pumice "raft" swam across the ocean

A giant pumice "raft" swam across the ocean

In August last year, scientists noticed a "floating island" in the Pacific Ocean, which was formed as a result of the eruption of the Tonga submarine ridge of volcanoes. Exactly a year later, a colossus the size of 20,000 football fields landed on the eastern shores of Australia. Scientists pin their hopes on the volcanic rock raft to save the dying Great Barrier Reef

Geologists have modeled the "soil" for growing plants on Mars

Geologists have modeled the "soil" for growing plants on Mars

The future colonists of the Red Planet, of course, will not be able to take with them a huge supply of terrestrial soil in order to "fertilize" the impoverished Martian "land" with them. American scientists were puzzled by this problem and found a way out: they developed artificial soil mixtures that mimic the Martian soil, and preliminary estimated its fertility

The severity of megacities causes the land level to fall

The severity of megacities causes the land level to fall

A mass of urban buildings and infrastructure pushes the ground beneath a large city, causing a localized sink in the land surface

The Black Sea has not yet "survived" the ice age, which ended almost 12 thousand years ago

The Black Sea has not yet "survived" the ice age, which ended almost 12 thousand years ago

German scientists have found that the deepest parts of the Black Sea are still responding to climate change caused by the last ice age, which ended 11,590 years ago

Scientists have solved the "problem of missing ice" during the maximum of the last glaciation

Scientists have solved the "problem of missing ice" during the maximum of the last glaciation

The more glaciers on Earth, the less water in the oceans of the planet - this is a completely logical idea, however, was not confirmed in the data on the last ice age. The information about the level of the World Ocean does not coincide with the models of glaciation. An international team of paleoclimatologists was able to resolve this paradox. True, now some important methods of isotopic analysis of sedimentary cores will have to be revised

Ice cores help trace two million years of atmospheric history

Ice cores help trace two million years of atmospheric history

Geologists have traced climate fluctuations during an era when warming and cooling cycles succeeded each other much faster than today

Research shows rain can move mountains

Research shows rain can move mountains

Scientists have developed a model that calculates the rate of change in a mountainous landscape. With its help, it was possible to establish that the average annual precipitation affects the erosion of rocks and can deform mountains