Sedimentary rocks are formed by the deposition of material on the earth's surface or in bodies of water, and make up around 8% of the earth's crust by volume. Intrusive igneous rocks form underground from magma that cools and solidifies within the surrounding country rock, resulting in coarse-grained textures. Metamorphic rocks comprise a large part of the earth's crust and form under high temperatures and pressures, being classified by their textures and mineral assemblages.
A CAPS-based slide show on the Earth and Beyond Module for grade 9's.
The focus is on recapping the different spheres of the earth, looking at the Lithosphere, and discussing the rock cycle, ores and minerals.
Text comes from the DocScientia Workbooks for grade 9's.
A CAPS-based slide show on the Earth and Beyond Module for grade 9's.
The focus is on recapping the different spheres of the earth, looking at the Lithosphere, and discussing the rock cycle, ores and minerals.
Text comes from the DocScientia Workbooks for grade 9's.
GEOGRAPHY YEAR 10: WEATHERING. Contains: the definition of weathering, physical or mechanical weathering, freeze-thaw action, onion-skin action, chemical weathering.
This is a powerpoint that would be able to be used in a 2nd grade level class. This goes into detail about what the definition of geology is as well as different types of rocks that there are.
This is an important presentation for geoscince and geology, and also can be useful for petroleum engineering as they are always studying Geology because without geologic we can say they can't do anything.
This is basic to understand how the rocks are formed and the basic type of rock and so on.
GEOGRAPHY YEAR 10: WEATHERING. Contains: the definition of weathering, physical or mechanical weathering, freeze-thaw action, onion-skin action, chemical weathering.
This is a powerpoint that would be able to be used in a 2nd grade level class. This goes into detail about what the definition of geology is as well as different types of rocks that there are.
This is an important presentation for geoscince and geology, and also can be useful for petroleum engineering as they are always studying Geology because without geologic we can say they can't do anything.
This is basic to understand how the rocks are formed and the basic type of rock and so on.
Earth materials, internel structure of the earth, composition of the earth Jahangir Alam
Internal Structure of the Earth
The Processes that Change the Shape of the Earth
Composition of the Earth
Basic Rocks Types
Common Rock Forming Minerals
Can you solve these questions please with clear explanation Describe.pdfAmansupan
Can you solve these questions please with clear explanation Describe the main difference
between Kaolinite and Montmorillonite clay minerals Differentiate between Sedimentary,
Igneous and metamorphic Rocks. Identify the main Transportation agents for the following
types of soil. Wind Sea (salt water) Lake (fresh water) River\" Ice
Solution
Minerals-Montmorillonite
Minerals-Kaolinite
The main difference between Igneous, Sedimentary and Metamorphic rocks, is the way that they
are formed, and their various textures.
Igneous Rocks
Igneous rocks are formed when magma (or molten rocks) cool down, and become solid. High
temperatures inside the crust of the Earth cause rocks to melt, and this substance is known as
magma. Magma is the molten material that erupts during a volcano. This substance cools down
slowly, and causes mineralization to take place. Gradually, the size of the minerals increase until
they are large enough to be visible to the naked eye. Igneous rocks are mostly formed beneath
the Earth’s surface.
The texture of Igneous rocks can be referred to as Phaneritic, Aphaneritic, Glassy (or vitreous),
Pyroclastic or Pegmatitic. Examples of Igneous Rocks include granite, basalt and diorite.
Sedimentary Rocks
Sedimentary rocks are usually formed by sedimentation of the Earth’s material, and this
normally occurs inside water bodies. The Earth’s material is constantly exposed to erosion and
weathering, and the resulting accumulated loose particles eventually settle, and form
Sedimentary rocks. Therefore, one can say, that these types of rocks are formed slowly from the
sediments, dust and dirt of other rocks. Erosion takes place due to wind and water. After
thousands of years, the eroded pieces of sand and rock settle, and become compacted to form a
rock of their own.
Sedimentary rocks range from small clay-size rocks to huge boulder-size rocks. The textures of
Sedimentary rocks are mainly dependent on the parameters of the clast, or the fragments of the
original rock. These parameters can be of various types, such as surface texture, round, spherical
or in the form of grain. The most common type of Sedimentary rock is the Conglomerate, which
is caused by the accumulation of small pebbles and cobbles. Other types include shale, sandstone
and limestone, which is formed from clastic rocks and the deposition of fossils and minerals.
Metamorphic Rocks
Metamorphic rocks are the result of the transformation of other rocks. Rocks that are subjected to
intense heat and pressure change their original shape and form, and become Metamorphic rocks.
This change in shape is referred to as metamorphism. These rocks are commonly formed by the
partial melting of minerals, and re-crystallization. Gneiss is a commonly found Metamorphic
rock, and it is formed by high pressure, and the partial melting of the minerals contained in the
original rock.
Metamorphic rocks have textures like slaty, schistose, gneissose, granoblastic or hornfelsic.
Examples of these types .
1. Mathew Sweeden
Life Skills
Sedimentary Rock
Sedimentary rocks are types of rock that are formed by
the deposition of material at the earth's surface and within
bodies of water.
The sedimentary rock corer of the continents of the
earth's crust is extensive but the total contribution or
sedimentaryrocks is estimated to be only 8% of the total
volume of the crust.
2. Igneous Rock
Intrusive igneous rocks are formed from magma that
cools and solidifieswithin the crust of a planet surroundedby
Pre-existing rock called country rock the magma cools slowly
and as result these rocks are coarse grounded.
Igneous rock is the product cooed solidified magma/lava.
As magma/lava cools it goes through the process of
crystallization which makes it turn into a igneous rock.
3. Metamorphic Rock
Metamorphic rocks make up a large part of the earth's
crust and classified by texture and by chemical and minerals
assemblage the temperatures greater than 150 to 100c and
pressure.
