In the 1960s, scientists developed a revolutionary theory called plate tectonics. Plate tectonics holds that the lithosphere, a layer of rigid material composed of the outer crust and the very top of the mantle, is divided into seven large plates and several more smaller plates. This sort of magma production is called subduction zone volcanism. 2  If the plates collide and neither plate can subduct under the other, the crust material will just crumple, pushing up mountains. 3  This process does not produce volcanoes.
The common causes of atrophic kidney fall into three distinct categories â congenital renal dysplasia, end stage kidney disease and chronic pyelonephritis. Congenital renal dysplasia This is brought about when there is a low blood supply during the embryonic period due to obstruction or other reason.
What Are Symptoms and Causes of Atrophic Kidney 2013-03-10 16:52. Atrophic kidney is a kidney disorder where the kidney is relatively smaller or obviously shrinks based on patientsâ age, sex, height and weight. The onset of atrophic kidney is reminding them of some severe issues. Knowing the symptoms and causes of atrophic kidney is able to prepare for the following treatment well.