Key Takeaways:
According to Youjun Zhang, one of the principal authors of the study from Sichuan University, Earth’s core may possess a more viscous consistency than previously assumed, drawing a comparison to the softness of butter in a kitchen setting, as stated in a press release from the University of Texas.
These findings hold the potential to shed light on longstanding enigmas surrounding our planet, including the enduring mystery of Earth’s unpredictable magnetic field.
Direct observation of Earth’s core remains an impossibility, as accessing its depths is beyond current technological capabilities. Even if we could penetrate to such depths, the extreme temperatures and pressures would render human instrumentation ineffective.
Consequently, scientists primarily rely on data collected from seismic waves generated by earthquakes to glean insights into the Earth’s internal composition.
By analyzing how these waves interact with various structures within the planet, scientists can make inferences about its internal dynamics.
Previously, scientific models had suggested that the immense pressure at the Earth’s core would force iron atoms into a solid state, despite the extreme heat.
These models depicted the iron atoms as arranged in a hexagonal pattern, indicating the presence of a massive solid metal core (the inner core) surrounded by molten metal (the outer core).
However, recent research indicates that this representation is incomplete.