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Microcontinent/ Researchers discover lost continent. How did they identify the isolated terrain?
2024-07-21 15:59:50 / MISTERE&KURIOZITETE
In a remarkable discovery, researchers at the University of Derby in the United Kingdom have identified a lost proto-microcontinent beneath Davis Strait, between Greenland and Canada, which formed more than 60 million years ago. This discovery provides new light on the processes of tectonic rifts and the evolution of the continental lithosphere.
The Davis Strait proto-microcontinent is a tectonic block detached from a continent, which was created through a long period of rifting and seafloor spreading between Greenland and North America. Researchers identified this microcontinent using a combination of data from gravity maps, seismic reflection data, and plate tectonic modeling.
Gravity maps are used to monitor the density of rocks and their depth, helping to identify anomalies in the earth's crust. Using these data, the researchers were able to reconstruct the tectonic movements that occurred over millions of years and identify the isolated terrane with relatively thick continental crust that broke away from Greenland during a known phase of extension.
Proto-microcontinents are part of the continental lithosphere and are separated from the main continents by tectonic plate movements that cause land collisions and separation. In the case of Davis Strait, the process of sea spreading helped form this proto-microcontinent, which has now been discovered and studied in such detail for the first time.
The findings of this study provide a new opportunity to understand how proto-microcontinents form and develop through the Earth's rocks. By understanding these processes, researchers are able to predict the future evolution of the earth's lithosphere and the possible breakup of other microcontinents around the world.
This discovery deepens our understanding of Earth's distant history and makes an important contribution to the field of Earth and tectonic sciences. The truth hidden beneath the earth's surface is becoming increasingly clear, offering us new insights into the history of our planet's development.
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