Magma under tectonic clash areas water than previously expected.
Findings from new research may help explain how the Earth’s crust forms, where the metal is deposited, and why some volcanoes are more active than others.
A new study has found that the collision of the continental plateau may cause more water than previously thought. The results may help explain the volcanic eruption and the distribution of iron ore such as copper, silver, and gold. Geologists conducted the study at the Woods Hole Oceanographic Institution (WHOI), MIT, and elsewhere.
The findings are based on an analysis of ancient gemstones in the Himalayan mountains. This geologic structure is the product of a reduced area, where two large tectonic plates are crushed by each other, one plate sliding beneath another over millions of years.
Reducing areas can be found worldwide. As one tectonic plate slides beneath the other, it can absorb seawater, drawing it deeper into the fabric, where the liquid may combine with rising magma. If the water magma is complete, it may explode. Reduced areas are the site of some of the world’s most powerful and devastating volcanic eruptions.
Beneficiary analysis, published May 26, 2022, in the journal Nature Geoscience, finds that magma in reduced areas, or “arc magmas,” can contain up to 20 percent of water content by weight – about twice the amount of water in abundance. Considered. The new measure suggests that reduced areas absorb more water than previously thought and that arc magmas are “much stronger” and have more water than scientists estimated.
The authors of the study included lead author Ben Urann Ph.D. ’21, a graduate student in the MIT-WHOI Joint Program at the time of the study (now at the University of Wyoming); Urann Ph.D. Advisor Véronique Le Roux of WHOI and the MIT-WHOI Integrated Program; Oliver Jagoutz, professor of geology at the MIT Department of Earth, Atmospheric and Planetary Sciences; Othmar Müntener of the University of Lausanne in Switzerland; Mark Behn of Boston College; and Emily Chin of Scripps Institution of Oceanography.