The Rock-Cycle
Word Wall
Rock-cycle
Sedimentary
Igneous Rock
Metamorphic Rock
Sedimentary Rock
Texture
Fine Grained
Coarse Grained
Sediment
Compaction
Cementation
Organic Rock
Chemical Rock
Clastic rock
This picture will help you figure out the rock cycle
The rock-cycle is very unique cycle because it forms many different rocks in many different ways.
The rock-cycle starts in the magma chamber. The magma chamber is made up of heated up rock that is called magma.
These types of rocks are sedimentary rocks
Sedimentary rocks are the most prevalent rock type exposed on the Earth's surface, created from other materials derived from exposed and weathered igneous, metamorphic or previously structured sedimentary rocks, or biological sedimentation, and compacted into a solid, self-adherent mass. Due to the action of wind, water, gravity, thermal expansion, and salt crystal expansion, small bits of rock are detached from distant parent structures, carried some distance, and deposited in another location to form a new layer of somewhat homogeneous material. From there, cementing agents such as carbonates, oxides and silica intermingle with the deposited material, eventually transforming the mixture into rock.
This type of rock is metamorphic rock
A metamorphic rock is formed is when a sedimentary rock changes under earths surface and heat and pressure changes it and it turns into a metamorphic rock.
This obsidian rock is an igneous rocks
The oldest type of all rocks is the igneous rock (IG nee us). The word "igneous" comes from a Greek word for fire. Deep inside the earth, the temperature is very high and the minerals there are in liquid form called magma. As the magma pushes towards the earth's surface, it starts to cool and turns into solid igneous rock.
TYPES OF SEDAMENTARY ROCKS
This Rock is clastic rock it forms by broken pieces of rocks
Conglomerate is a clastic sedimentary rock that contains large (greater then two millimeters in diameter.Rounded particles. The space between the pebbles is generally filled with smaller particles and/or a chemical cement that binds the rock together. The specimen shown above is about two inches (five centimeters) across.
This rock is chemical
Rock salt is a chemical sedimentary rock that forms from the evaporation of ocean or saline lake waters. It is also known by the mineral name "halite". It is rarely found at Earth's surface, except in areas of very arid climate. It is often mined for use in the chemical industry or for use as a winter highway treatment. Some halite is processed for use as a seasoning for food. The specimen shown above is about two inches (five centimeters) across.
This rock texture is organic
coal is an organic sedimentary rock that forms mainly from plant debris. The plant debris usually accumulates in a swamp environment. Coal is combustible and is often mined for use as a fuel. The specimen shown above is about two inches (five centimeters) across.
THIS ROCK IS FINE GRAINED TEXTURE
Extrusive rocks, formed due to rapid cooling of lava at Earth's surface, are composed of tiny crystals or even unordered atoms because crystallization was completed within a few seconds, hours, or perhaps days. The resulting fine-grained or aphanitic texture is characteristic of volcanic igneous rocks. The rocks shown below show this fine-grained texture.
This texture rock is coarse-grained
Coarse-grained textures generally indicate magmas that slowly cooled deep underground. Slow cooling gives crystals enough time to grow to easily seen sizes (i.e., larger than 1 mm).The first-formed crystals tend to have regular shapes because they grow freely into the surrounding liquid. Later-formed crystals find themselves competing for space with their solid neighbors; they are forced to fill in the irregular gaps. Thus, you can often figure out the relative order in which the minerals crystallized from the magma.