The lower crust is primarily made up of igneous rocks such as gabbro and basalt. It is denser and more mafic (rich in magnesium and iron) compared to the upper crust. The lower crust is also hotter and more ductile than the upper crust.
Most magma is foound in upper portions of the mantle near plate boundaries or at hot spots, but some is found in the crust in magma chambers.
No, the lower portion of the crust and the upper portion of the mantle together are not called the core. The core is a separate layer found beneath the mantle, and it is divided into the outer core and inner core based on composition and properties.
It is the upper and lower mantle. It has the consistency of warm asphalt.
If you are using the term 'upper crust' euphemistically and not to refer to bread or pies, then the upper crust is made of aristocrats. If you mean the upper part of the earth's crust, then it is made of the lightest elements from which the planet is made (silicon, aluminum etc).
The lower crust is denser and more mafic in composition compared to the upper crust, which is less dense and more felsic. The lower crust is also usually deeper in the Earth's crust compared to the upper crust.
The lower crust is primarily made up of igneous rocks such as gabbro and basalt. It is denser and more mafic (rich in magnesium and iron) compared to the upper crust. The lower crust is also hotter and more ductile than the upper crust.
The crust and upper mantle make up the earth.
Oceanic Crust
only 1 crust. then the lithosphere, upper mantle, lower mantle, outer core, inner core.
Crust and the upper mantle
lower crust to upper mantle
lower core, upper core, mantle, and crust
Most magma is foound in upper portions of the mantle near plate boundaries or at hot spots, but some is found in the crust in magma chambers.
No, the lower portion of the crust and the upper portion of the mantle together are not called the core. The core is a separate layer found beneath the mantle, and it is divided into the outer core and inner core based on composition and properties.
The Earth's crust is composed of two layers: the continental crust, which makes up the landmasses, and the oceanic crust, which forms the seafloor. These two crustal layers differ in composition, thickness, and density.
crust, upper mantle, lower mantle, outter core,inner core,rock