Introduction
What is a rock’s favorite ice-cream? ROCKY road!
What is a rock’s favorite song? We Will, We Will, ROCK You!
Ok, ok, all jokes aside. Would you like to learn more about rocks and minerals? If you do, come along on my fascinating journey. (In an airplane.)There are many things to see and learn about on this trip. So, pack your bag and socks because we are going to learn more about rocks!
We are turning on the oldies…Haha
Minerals are natural compounds or elements of inorganic nature. There are 92
naturally occurring elements that have specific physical properties, definite
chemical composition, and characteristic atomic structure. You can also find
between 2,000 to 2,500 minerals in the earth’s crust. Minerals are formed in a
positive response to their environment, most of them too deep for an observer.
Environments in which minerals are formed far beneath the earth’s surface are
plutonic igneous, pegmatitic, hot temperature vein, moderate temp. Vein, low
temp. Vein and a metamorphic environment. Environments in which minerals form
near the earth’s surface are groundwater, weathering, and sedimentary. Minerals
are divided into groups on the basis of their composition. About one third of
all mineral belong to the group silicates. Other groups are carbonates they
includes calcite, oxide which includes magnetite, sulfides which includes pyrite,
The Essay on “How the Earth was Formed” video notes
Theory: -sun was surrounded by a cloud of dust and gas -as cloud cooled little grains of minerals started forming -grains of minerals started bumping into each other (Problem was nobody could explain how these microscopic minerals formed a planet) Then in 2003 astronaut Don Pettit performed an experiment onboard the international space station. He put some salt in a plastic bag and found that ...
halides which includes halite, sulfates which includes gypsum, and
phosphateswhich eapalite the mineral belongs to. The last group is every
mineral that is a chemical element and is found their uncombined state. The
elements include copper, silver, gold, and so on.
The Rock Cycle describes the process the earth uses to recycle rocks. Yes, even rocks are recycled.
There are three basic types of rocks: igneous, metamorphic, and sedimentary. The interesting part of knowing these names is that any one of the three types of rock can be changed into one of the other types.
The names of the rock types refer to the way the rocks are formed. Igneous rocks are formed from fiery molten magma. Metamorphic rocks form under intense heat and pressure. Sedimentary rocks form by weathering.
Get ready for a very rocky flight….Haha
Igneous Rocks
Igneous rocks are formed of magma, the molten form of the earth’s mantle layer. Igneous rocks can form above ground as lava spewing from volcanoes. But igneous rocks can also form below the surface. Pockets of magma get stuck in layers of the earth. As they get closer and closer to the surface, the magma slowly cools. Granite is an igneous rock that formed from a slow-cooling pocket of magma.
Sedimentary Rocks
Sedimentary rocks form from small weathered particles of other rocks or the weathered shells of sea animals. Wind and rain beating on the faces of exposed rock tend to wear off particles that are blown or washed to a new location. When sea creatures die, the shells settle on the bottom of the ocean. As the sediments pile up, they press together to form Sedimentary rock.
Metamorphic Rocks
Metamorphic Rocks form under intense heat and pressure. Metamorphic rocks start out as igneous rocks, sedimentary rocks or other types of metamorphic rocks, but through heat or pressure, change characteristics such as sheen, tightness of grain and hardness.
Rocks continually change form. What started out as sedimentary rock may change to metamorphic and, with time and weathering, change back to sedimentary.
The Term Paper on Sedimentary Rock 2
... of sedimentary rock on Earth is formed from particles of pre-existing rocks. This route begins with the weathering and erosion of sedimentary, igneous, or metamorphic rocks. Through ... form and result in a natural glass, such as obsidian. Any of the three main types of rocks (igneous, sedimentary, and metamorphic rocks) can melt into magma ...
Thanks for keeping your seatbelts on and your hands and feet to yourself!!!!!Have a nice day!
