All articles tagged with #deep earth
Scientists have discovered a new bacterial phylum, CSP1-3, deep within Earth's crust in Iowa and China, which plays a crucial role in purifying water by consuming pollutants and may be among the most ecologically significant microbes in deep soil environments, challenging previous assumptions about inertness in such habitats.
Scientists have discovered a massive, hidden ocean beneath Earth's surface, approximately 700 km deep, using seismic data and mineral analysis, which could reshape our understanding of Earth's water sources and geological processes.
Scientists have discovered that remnants of the ancient planet Theia may be present in Earth's deep mantle, shedding light on the origin of the Moon and Earth's early history. Through computational fluid dynamics simulations, researchers found that the giant impact between Theia and Earth resulted in mantle stratification, with the upper mantle forming a magma ocean and the lower mantle retaining the composition of Earth (Gaia). This stratification may have persisted to the present day, explaining the presence of Large Low Velocity Provinces (LLVPs) in the mantle. The study challenges previous theories of Moon formation and provides insights into Earth's geological evolution and the formation of the inner solar system.
Diamonds are the deepest-occurring gemstones on Earth, forming in the upper mantle at depths between 93 and 186 miles (150 to 300 km) under extreme pressures. Peridot, the gem form of olivine, was once a contender for the title but has been surpassed by superdeep diamonds found at depths of 410 miles (660 km) and 466 miles (750 km). Diamonds are brought to the surface by volatile kimberlite magma, and their scientific importance lies in providing valuable insights into the Earth's interior and processes, including tectonic activity, the carbon cycle, water distribution, and the discovery of new minerals.