This cylindrical core sample, ... “Previously, we have been largely limited to mantle samples dredged from the sea floor,” he added. The core sample has a diameter of about 6.5cm.

This sample, which is more than six times longer than the previous core of mantle rock, has given us a glimpse into the composition of this mostly inaccessible layer of the Earth. You can read ...

Scientists regularly extract core samples—cylindrical samples of material from deep under the Earth’s surface—to examine the composition of different layers.

An analysis of Hawaii’s volcanic rocks revealed Earth’s core is leaking gold and other precious metals, a study found. The elements emerge when ocean islands form.

Nodules containing nickel, cobalt, and manganese rest top these core samples taken from the deep ocean floor, San Diego, Calif., June 8, 2021. Carolyn Cole/Los Angeles Times via Getty Images, FILE.

Core samples from Greenland's seabed provide first historical overview of plastic pollution By coring the seabed at 850 m water depth in Disko Bay off Greenland's west coast, researchers from the ...

The core sample they recovered comprises more than 70% of the rock - 2,907 feet ... "Previously, we have been largely limited to mantle samples dredged from the seafloor," Lissenberg added.

We collected the core from a zone called the Mid-Atlantic Ridge on the seafloor under the North Atlantic Ocean. The drill was deployed from the research ship Joides Resolution. This happened on ...