Αποτελέσματα Αναζήτησης
Oceanic crust is the layer of Earth's lithosphere under the oceans, formed by volcanic eruptions at spreading centres. It is about 6 km thick, composed of basaltic lavas, dikes, and gabbro layers, and destroyed by subduction.
Oceanic crust is the uppermost layer of the oceanic portion of the tectonic plates, composed of mafic rocks and formed by cooling of magma. It is thinner, denser and younger than continental crust, and it is created and destroyed at mid-ocean ridges and subduction zones.
Oceanic crust is the thin, magnesium-rich layer of Earth's crust that forms at mid-ocean ridges through the partial melting of the mantle. It consists of basaltic rocks with a standard layered structure, and its seismic velocity and geological features are explained in this article.
1 Ιαν 2018 · Oceanic crust is the basaltic layer of the lithospheric plates under the oceans, formed by magmatic processes at mid-ocean ridges. Learn about its composition, structure, and variations across different spreading rates and environments.
Oceanic crust is the thin and dense layer of rock that forms the seafloor and is constantly recycled by the rock cycle. Learn about its layers, properties, age, and how it differs from continental crust.
25 Απρ 2024 · Oceanic crust, extending 5 to ten kilometers (3-6 kilometers) beneath the ocean floor, is mostly composed of different types of basalts. Geologists often refer to the rocks of the oceanic crust as “ sima .”
5 Απρ 2004 · Oceanic crust is a thin, dense, and basaltic layer that covers most of Earth's surface. Learn how scientists use sound, rock samples, and ophiolites to unravel the tapestry of ocean crust and its magmatic processes.
