In a study published in Geological Society of America BulletinResearchers at the University of Houston identified the remains of the ancient plate – which disappeared some 40 million years ago – hundreds of miles beneath the Yukon Territory of Canada.
Whether or not the plate “resurrection” is mentioned – has been a hot topic of debate in the field of geology whenever it came into existence.
Tectonic plates are huge slabs of planetary crust, which are continuous, very gradual, motion. The regions where these plates meet are seismically and volcanically active.
Geologists have long known that there were two tectonic plates called the Kula and Farlan from the west coast of North America to the Pacific Ocean until the Cenozoic era (66 million years before the present day).
But some experts have suggested that a third plate, the resurrection, may have been with Kula and Ferlan for a time, before it became known as the “precipitate”, 60 and 40 million years ago on the Earth’s surface. Was drowned under.
The resurgence caused the North American slipping beneath the plate – including most of North America, as well as Greenland, the North Caribbean, and parts of Siberia, Iceland, and the Azores – to melt and deform due to the Earth’s extreme heat. The interior is becoming much smaller in size.
Now, researchers at the University of Houston say they have found a large proportion of the crust that they believe represents the remains of the resurrection.
First, scientists analyzed existing mantle topography images, which provide a snapshot of the Earth’s interior beneath North America.
This analysis showed a portion of the rock 250 to 370 miles below the Yukon, which they dubbed the “Yukon Slab”.
The team then used a computer modeling technique, known as “slab unfolding”, to find that whatever subducted plates once were in the area were rebuilt. This approach showed that the Yukon slabs closely matched the assumed shape of the resurrection plate of the early Cenozoic era.
“We believe we have direct evidence that a resurrection plate existed,” University of Houston study co-author Spencer Fuston said in a statement. “We are also trying to resolve a debate and advocate the side for which our data supports.”
Researchers say the latest findings may improve our ability to predict volcanic hazards in the region and identify mineral deposits, providing new insights into the Earth’s climate.
Another co-author of the study, Johnny Wu, said in a statement, “Volcanoes form at the boundaries of the plate, and the more plates you have, the more volcanoes there are.” “Volcanoes also affect climate change. So, when you’re trying to model the Earth and understand how the climate has changed over time, you really want to know how many volcanoes there are on Earth . “