The Rock Cycle

By: Kevin Patel

The Rock Cycle

The rock cycle ceaseless cycle in which rocks go through a transformational phase, changing their current forms. Throughout the duration of this cycle the rock will experience a variety of forces including: heat, pressure, and weathering, which will substantially alter it's current form. The possible outcomes of these factors include the rock becoming a sedimentary rock, an igneous rock, or a metamorphic rock. Depending on which forces have been applied to the rock the outcome varies. The duration of the period it takes for a rock to shift from one form to another is designated for any of the rocks. Some rocks may take a very long period of time to actually shift from one form of rock to another, while another rock may take only a short while to shift from one form to another-the time is undetermined.
Big image

Diabase (Igneous Rock)

Diabase, one of the many rocks classified as an igneous rock is a rock known for its almost congruent relation in physical configuration of the rock itself. Diabase which is dubbed,"black granite" due to its grayish-black hue is located beneath basaltic volcanoes, where it hardens. These basaltic volcanoes are usually found along the mid-ocean ridges. Diabase contains many large crystals due to the fact that because of the rock's hardening pace, crystals are able to develop within the rock. Diabase is classified as an igneous rock because of the way it is manufactured-cooling from magma.

Diabase is a rock with crystals that are noticeably larger than the others, a characteristic called porphyry. Porphyry is caused when different parts of the magma, that make up a rock have unequal levels of cooling paces due to their diverse locations in the magma stream as it ascends. The bulkier crystals in diabase are actually feldspar crystals, which developed greatly because of their reduced cooling paces. The crystals with the lesser mass are created as the magma stream begins to move at an accelerated pace, causing the crystals to have faster cooling paces, resulting in smaller crystals.

Big image

Bauxite (Sedimenatry Rock)

Bauxite, the highly important sedimentary rock in which aluminum can be derived from due to the high percentage of hydrated aluminum hydroxide, which is a compound of water and aluminum oxide. This allows the Bauxite to be processed, and have the aluminum oxide extracted from the rock itself. The aluminum oxide contains aluminum within it, which is then extracted for a final product.

Bauxite is formed as rocks that are composed of aluminum or silica, are chemically weathered, then deposed onto land, forming Bauxite. Thus, making the rock a sedimentary rock, being composed of layers of sediment from different rocs containing aluminum or silica, which is a combination of silicon and oxygen. Bauxite can be found in areas that have somewhat of a tropical climate because natural running water sources weather away some of the silica in the nearby rock. Australia, for example would suit these conditions, which is why they are the country with the highest bauxite generation.

Slate (Metamorphic Rock)

Slate, formed from the sedimentary rock shale with heat and pressure applied to it over time. The shale was altered into slate throughout that vast period of time, and now the newly formed slate may contain minerals such as quartz. Since slate is altered shale it will most likely retain some key features of the rock including its quartz percentage. A high percentage of slate is found in Scotland, France, and Germany.

What makes slate a metamorphic rock is the fact that it comes from a previous type of rock that has had numerous amounts of heat and pressure applied to it- in this case a sedimentary rock (shale).