An Underwater Volcanic Eruption. Credit: NSF and NOAA

How volcanoes explode in the deep sea

Next to Prof. Oded Aharonson is the tri-axial Helmholtz Coil used to generate the magnetic field during the growing of the ice samples

The magnetic history of ice

False color satellite image of the Taimali catchment area in southeastern Taiwan in August 2009 after typhoon Morakot. Red: vegetated surface, grey: barren surface (Image: LANDSAT-7 / NASA, JPL).

Typhoon changed earthquake patterns

A new study shows that giant ore deposits are tightly distributed above where rigid rocks that comprise the nuclei of ancient continents begin to thin, far below the surface (white areas). Redder areas indicate the thinnest rocks beyond the boundary; bluer ones, the thickest. Circles, triangles and squares show known large sediment-hosted deposits of different metals. (Adapted from Hoggard et al., Nature Geoscience, 2020)

Geologists identify deep-earth structures that may signal hidden metal lodes

Our planet has a layered structure of silicate mantle and metallic core. The liquid outer core is located 2900 km below the surface where the pressure and temperature are extremely high, >136 gigapascal (1.36 million atmospheres) and >4000 C. The sound speed and density profiles of the deep-interior of our planet is given by seismological observations.

Precise measurement of liquid iron density under extreme conditions

Moon

Higher concentration of metal in Moon’s craters provides new insights to...

Earth

Uncovering the two ‘faces’ of the Earth

Amethyst-Geode in the parent rock

How do the Geodes get Colorful?

zultanite gemstones, rough and crystal form lighting

Zultanite : What is Zultanite Mineral? Where to find Zultanite?

An egg of Himeoolithus murakamii (left), outlined egg with intact eggshell remains (black area) (middle), and reconstruction of Himeoolithus murakamii and their probable parent dinosaur (right).

Tiny Japanese dinosaur eggs help unscramble Cretaceous ecosystem

1...727374...668Page 73 of 668