The orogenic movements are movements of vertical type and are faster, producing folds (responsible for the formation of mountain ranges), and faults, which are fractures of the cortex that occur when the strata do not withstand the pressures, these faults can be vertical, horizontal or normal and cause earthquakes. Different natural processes are carried out in the cortex and living beings, both plants and animals, can have a suitable place for life. The silicates that had a lighter composition went up creating the mantle and the crust , and the heavier ones sank giving form to the nucleus . Earth's crust is an important layer which is extremely thin which is composed of rocks which form the outermost layer of our planet. The gases emanating from the volcanic eruptions formed the atmosphere. Prior to 4.44 billion years ago, the Earth's crust was entirely molten, due to residual heat from the planet's initial collapse. The Earth’s crust radius is 6,378 kilometers in part of Equator and the variation between the highest continental height and the deepest sea does not exceed 20 kilometers. Some of the phenomena that occur in the Earth’s crust are the following: The main importance of the Earth’s crust is that on it is where life takes place and develops. Prior to 4.44 billion years ago, the Earth's crust was entirely molten, due to residual heat from the planet's initial collapse. Michael is a longtime wiseGEEK contributor who specializes in topics relating to paleontology, The main characteristics of Earth’s crust are as follows: The earth was formed 4.6 billion years ago and when surface cooling began, its crust, mantle and core also began to differentiate. Evidence that the Earth's crust cooled within 100 million years comes from measurements of hafnium levels in the Jack hills in Western Australia, one of the oldest areas of exposed crust today. The silicates that had a lighter composition went up creating the mantle and the crust, and the heavier ones sank giving form to the nucleus. Wikibuy Review: A Free Tool That Saves You Time and Money, 15 Creative Ways to Save Money That Actually Work. The only earthly minerals older than this are individual rocks and crystals, which give less information about the overall global state of the Earth's crust at the time. It is less than 1% of Earth's volume. Methuselah Foundation, the Singularity Institute for Artificial Intelligence, and the Lifeboat Foundation. In addition to being an avid blogger, Michael is particularly It is formed by several types of rocks such as, Most of the rocks that form it were originated as, The upper part of the mantle is composed mainly of, The boundary between the crust and the mantle is conventionally placed in the, Together with the underlying mantle it forms the. The most important components found in the Earth’s crust are: oxygen, silicon, aluminum, calcium, iron, sodium, potassium and magnesium. The crust began to cool when the Earth was at least 40% of its current size, possessing enough gravity to hold down an atmosphere containing water vapor. The Earth's crust, its outermost layer, formed about 4.44 billion years ago, roughly 100 million years after the formation of the Earth itself. Below the crust is the mantle.The crust and the upper mantle make up the lithosphere.The lithosphere is broken up into tectonic plates that can move.. He has also worked for the It is the place where plants grow, food is cultivated and living things evolve. It is equivalent to less than half of 1 percent of the planet's total mass, but it plays a vital role in most of the natural cycles that occur throughout the Earth. In practice, looking back beyond 3.8 billion years ago is difficult, as the oldest rock formations are about this age.