Basalt is a volcanic rock (microlitic structure). From a primary magma from partial melting of the mantle peridotites. The rocks…

After the structure, density, porosity, magnetism, mineralogy of rocks, geochemists up! In the Geochemistry Laboratory, we will reduce the rock…

Olivine is the first mineral to crystallize when magma is cooling. It is the reason why Olivine is often present…

The answer was found by some of our frequent readers. Thank you for following us and explore with us in…

When cores arrive in the lab from the drill floor, scientists and technicians study physical properties of the rocks (magnetism…

The magma produced in the oceanic ridge, while cooling slowly, crystallizes in magmatic rocks. The challenge for the petrologists on…

When the magma becomes rock !   Since one month, the scientists aboard the JR have examined with the rocks…

Seven rocks cores from the ocean floor… among them a sediment core less dense than the others hard rocks cores…

Core on deck, core on deck This advertisement of the speaker announces the arrival on the deck of a core…