Articles tagged "earth's core"

structure of the earth ft img march 14 2020

Earth's early magnetic field may have been produced by its mantle, not core

A new study published in Earth and Planetary Science letters supports the concept that the Earth's early magnetic field was generated by its mantle, not its core. A new study conducted by researchers Dave Stegman, Leah Ziegler, and Nicolas Blanc provided more...

March 15, 2020

quartz crystals earth core power magnetic field

"Quartz" crystals at the Earth's core power its magnetic field

Scientists at the Earth-Life Science Institute at the Tokyo Institute of Technology reported in Nature yesterday their unexpected discoveries about the Earth's core. The findings include insights into the source of energy driving the Earth's magnetic field,...

February 23, 2017

scientists discover accelerating jet stream in earth core

Accelerating high-latitude jet stream discovered in Earth’s core

Scientists using data obtained by ESA's Swarm constellation of satellites have discovered a jet stream in the liquid iron part of Earth’s core 3 000 km (1 864 miles) beneath the surface. In addition, Swarm satellite data show that this jet stream is...

December 20, 2016

earth_core_feat

New research shows Earth's core is more abundant in oxygen than previously thought

An international team of scientists has concluded the oxygen is more abundant in the core of the Earth than previously thought, by considering the combined geophysical and geochemical signatures of the planet. Results were published in the online September 21 - 25, 2015

September 25, 2015

outer_and_inner_core_of_earth_fe

Earth's surprise inside: Geologists unlock mysteries of the planet's inner core

Seismic waves are helping scientists to plumb the world’s deepest mystery: the planet’s inner core.Thanks to a novel application of earthquake-reading technology, a research team at the University of Illinois and colleagues at Nanjing University in China hav

February 11, 2015

hotspots driving tectonic plate movement_67

Hotspots driving tectonic plate movement

Plate tectonics has been on the curriculum for a while now. Most people are fairly familiar with the theory; the Earth's crust - or lithosphere - is broken up into different plates which move around on the very hot, viscous substance beneath.This movement is driven

July 08, 2011

puuoo crater 1103015 02

Source of Hawaii volcanism found

For years, researchers have debated whether or not the Hawaiian hot spot — the active volcanic region that created the islands — is fueled by a plume of hot magma rising straight up from the Earth's depths. Not so, new research finds. Instead, a giant, d

May 27, 2011