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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.
Normal Faults and Reverse Faults are "Dip-Slip" Faults - they experience vertical movement, in line with the dip of the fault. They are identified by the relative movement of the Hanging Wall...
To understand the answer to this question we must first consider the dynamics and structure of each of these plate margins.
Oceanic trenches form at subduction zones. At a subduction zon...
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