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Magma can be described as melted rock deep within the Earth, usually originating from the melting of the upper mantle or crust. The magma will generally contain silica tetrahedra as well as many metal cat...
Palaeomagnetism is a record of the Earth’s past magnetic field. When lava is erupted at the surface, magnetic minerals, such as iron, in the lava align parallel with the Earth’s magnetic field. The magnet...
A normal fault is a fault that involves extensional movement along its fault plane, this involves the hanging wall moving down in relation to the footwall. A reverse fault involves contraction along its f...
Echinoids. They belong to the same phylum (Echinodermata) as Crinoids. This classification is defined by an organism showing 5-fold symmetry.
To achieve the highest marks, both successes and failures must be discussed explicitly and in depth, not just listed, which would limit you to half marks. Remembering two or three figures can make your...
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