Types of Rocks - Fort Bend ISD
... Slowly thick layers of sediment build up and the weight of the layers above presses down on the layers below. The process is call compaction, squeezes the layers of sediment together. Another process, called cementation, glues the sediment together. ...
... Slowly thick layers of sediment build up and the weight of the layers above presses down on the layers below. The process is call compaction, squeezes the layers of sediment together. Another process, called cementation, glues the sediment together. ...
Types of Rock
... silicon, and sodium Mafic: dark colored rocks that are rich in calcium, iron, and magnesium, poor in silicon Coarse-grained: takes longer to cool, giving mineral crystals more time to grow Fine-grained: cools quickly with little to no ...
... silicon, and sodium Mafic: dark colored rocks that are rich in calcium, iron, and magnesium, poor in silicon Coarse-grained: takes longer to cool, giving mineral crystals more time to grow Fine-grained: cools quickly with little to no ...
7.2 NOTES What is chemical weathering? Objective: Explain how
... OxidationOxidation occurs when oxygen combines with another substance, forming oxides. Rust is an iron oxide. Rocks such as pyrite and magnetite have minerals that contain iron. When exposed to the air, the iron undergoes oxidation, and the rocks weaken and crumble. ...
... OxidationOxidation occurs when oxygen combines with another substance, forming oxides. Rust is an iron oxide. Rocks such as pyrite and magnetite have minerals that contain iron. When exposed to the air, the iron undergoes oxidation, and the rocks weaken and crumble. ...
Sedimentary Rocks - CoconinoHighSchool
... Diagenesis is any chemical, physical, or biological change undergone by a sediment after its initial deposition and during and after its lithification. ...
... Diagenesis is any chemical, physical, or biological change undergone by a sediment after its initial deposition and during and after its lithification. ...
Lab #22: Sedimentary Rock Identification
... 1. Clastic or fragmental rocks derived from weathering and erosion of land materials. They are identified by their grain size. 2. Crystalline which form from precipitation of dissolved salts in sea water. They are identified by composition. 3. Bioclastic rocks which are made up of fragments of livin ...
... 1. Clastic or fragmental rocks derived from weathering and erosion of land materials. They are identified by their grain size. 2. Crystalline which form from precipitation of dissolved salts in sea water. They are identified by composition. 3. Bioclastic rocks which are made up of fragments of livin ...
Types of Rock
... cemented together with calcite or quartz Breccia is a term most often used for clastic sedimentary rocks that are composed of large angular fragments (over two millimeters in diameter). ...
... cemented together with calcite or quartz Breccia is a term most often used for clastic sedimentary rocks that are composed of large angular fragments (over two millimeters in diameter). ...
Rock revision exercise using drawings of thin sections Look at the
... Answer the following questions. Write your answers in the spaces provided. a) For each rock give the grain size & texture and name the rock. Rock name Section Grain size Texture ...
... Answer the following questions. Write your answers in the spaces provided. a) For each rock give the grain size & texture and name the rock. Rock name Section Grain size Texture ...
Thin section drawings of rocks
... Answer the following questions. Write your answers in the spaces provided. a) For each rock give the grain size & texture and name the rock. Rock name Section Grain size Texture ...
... Answer the following questions. Write your answers in the spaces provided. a) For each rock give the grain size & texture and name the rock. Rock name Section Grain size Texture ...
1 Sedimentary Rocks - Laboratory 5 (name
... Sedimentary rocks or their unconsolidated equivalents are composed of sediment, but what is sediment? Sediment is solid particles that originate from the (1) weathering, mass wasting, and erosion of previously existing Earth material, (2) minerals precipitated from a solution, or (3) the remains or ...
... Sedimentary rocks or their unconsolidated equivalents are composed of sediment, but what is sediment? Sediment is solid particles that originate from the (1) weathering, mass wasting, and erosion of previously existing Earth material, (2) minerals precipitated from a solution, or (3) the remains or ...
Name Date
... plagioclase feldspar (3) qumr . .(4) dark (biotite) mica 24. According to the Earth Science Reference Tables, how does gabbro differ from basalt? (1) only in grain size (2) o~ in mineral composition (3) in color and grain size (4) in mineral composition and color 25. If an igneous rock is composed o ...
... plagioclase feldspar (3) qumr . .(4) dark (biotite) mica 24. According to the Earth Science Reference Tables, how does gabbro differ from basalt? (1) only in grain size (2) o~ in mineral composition (3) in color and grain size (4) in mineral composition and color 25. If an igneous rock is composed o ...
The Rock Cycle
... Transition to metamorphic • Rocks exposed to high temperatures and/or pressures can be changed physically or chemically to form a different rock, called metamorphic. • A main type of metamorphism is caused when a body of rock comes into contact with an igneous intrusion that heats up this surroundi ...
... Transition to metamorphic • Rocks exposed to high temperatures and/or pressures can be changed physically or chemically to form a different rock, called metamorphic. • A main type of metamorphism is caused when a body of rock comes into contact with an igneous intrusion that heats up this surroundi ...
Lab6Siliciclastic14
... divisions and the transport mechanism, which is in return responsible for their physical separation during the fluid transport process, and the final distinction between sedimentary rocks. ...
... divisions and the transport mechanism, which is in return responsible for their physical separation during the fluid transport process, and the final distinction between sedimentary rocks. ...
Rocks Quiz Study Guide
... Rocks Quiz Study Guide -Rocks are made up of one or more minerals. -There are three types of rocks: sedimentary, igneous, and metamorphic. -Sedimentary rock forms when sand, particles of rock, bits of soil, and remains on once-living things (fossils) are pressed together and harden. -Limestone and S ...
... Rocks Quiz Study Guide -Rocks are made up of one or more minerals. -There are three types of rocks: sedimentary, igneous, and metamorphic. -Sedimentary rock forms when sand, particles of rock, bits of soil, and remains on once-living things (fossils) are pressed together and harden. -Limestone and S ...
ROCKS AND MINERALS READING TEACHER NOTES
... Pumice stones are lightweight, rough, and porous. It forms when magma cools so quickly it preserves the air pockets created by the gas bubbles. ...
... Pumice stones are lightweight, rough, and porous. It forms when magma cools so quickly it preserves the air pockets created by the gas bubbles. ...
sedimentary rocks (clastic)
... They are derived from preexisting source rocks. They are composed by sediments, this is material that has been weathered, transported and deposited by processes such as running water (rivers) glaciation (glaciers), etc., or formed by chemical precipitation from solutions. They cover 75% of the Earth ...
... They are derived from preexisting source rocks. They are composed by sediments, this is material that has been weathered, transported and deposited by processes such as running water (rivers) glaciation (glaciers), etc., or formed by chemical precipitation from solutions. They cover 75% of the Earth ...
Rock Cycle
... preexisting rock, either sedimentary or igneous, into a texturally or miner logically distinct new rock as a result of high temperature, pressure or both without melting the rock. Examples include schist, gneiss, and anthracite coal Fossils- Traces of plants or animals preserved in rock. ...
... preexisting rock, either sedimentary or igneous, into a texturally or miner logically distinct new rock as a result of high temperature, pressure or both without melting the rock. Examples include schist, gneiss, and anthracite coal Fossils- Traces of plants or animals preserved in rock. ...
4 Key Agents of Erosion
... - the physical or chemical breakdown of rock caused by living organisms such as plants, animals, bacteria, and fungi Example: Tree roots getting into cracks in rock and wedging the rock apart, acids produced by living organisms can dissolve rocks *The physical environment and natural processes such ...
... - the physical or chemical breakdown of rock caused by living organisms such as plants, animals, bacteria, and fungi Example: Tree roots getting into cracks in rock and wedging the rock apart, acids produced by living organisms can dissolve rocks *The physical environment and natural processes such ...
The Rock Cycle
... Most sediments are deposited in water containing dissolved minerals. The water flows through the sediment and some of these minerals precipitate on the grain surfaces. This “cements” the grain surfaces together ...
... Most sediments are deposited in water containing dissolved minerals. The water flows through the sediment and some of these minerals precipitate on the grain surfaces. This “cements” the grain surfaces together ...
The rocks you see around you - the mountains, canyons & riverbeds
... than it is high in silica If an Igneous Rock is dark in color than it is low in silica ...
... than it is high in silica If an Igneous Rock is dark in color than it is low in silica ...
Rocks, Minerals, and Soil Study Guide Earth`s Crust There are four
... Rocks are classified into three basic groups: igneous, sedimentary, and metamorphic. These groups are based on how the rock is formed. Igneous rocks begin as molten rock, a red hot liquid. Igneous means “fire”, so igneous rocks can also be called “fire rocks.” After a long while, the molten rock coo ...
... Rocks are classified into three basic groups: igneous, sedimentary, and metamorphic. These groups are based on how the rock is formed. Igneous rocks begin as molten rock, a red hot liquid. Igneous means “fire”, so igneous rocks can also be called “fire rocks.” After a long while, the molten rock coo ...
Constructive Processes
... strong wind cannot carry sand very far. Wind blowing from the ocean toward land picks up sand along the shore and deposits it nearby. Sand dropped by wind starts to build up around rocks or plants on the shore. As the wind deposits more sand, dunes form. ...
... strong wind cannot carry sand very far. Wind blowing from the ocean toward land picks up sand along the shore and deposits it nearby. Sand dropped by wind starts to build up around rocks or plants on the shore. As the wind deposits more sand, dunes form. ...
Weathering, Erosion, Deposition, and Lithification: Or How to Make a
... of the water to carry it. Calcareous: Rock or other material containing up to 50 percent calcium carbonate. Carbonate: Rock-forming minerals containing the carbonate ion which include calcite and dolomite. Carbonate platform: A substantial limestone or dolomite substrate upon which a reef might be b ...
... of the water to carry it. Calcareous: Rock or other material containing up to 50 percent calcium carbonate. Carbonate: Rock-forming minerals containing the carbonate ion which include calcite and dolomite. Carbonate platform: A substantial limestone or dolomite substrate upon which a reef might be b ...
Mudrock
Mudrocks are a class of fine grained siliciclastic sedimentary rocks. The varying types of mudrocks include: siltstone, claystone, mudstone, slate, and shale. Most of the particles are less than 0.0625 mm (1/16th mm or 0.0025 inches) and are too small to study readily in the field. At first sight the rock types look quite similar; however, there are important differences in composition and nomenclature. There has been a great deal of disagreement involving the classification of mudrocks. There are a few important hurdles to classification, including:Mudrocks are the least understood, and one of the most understudied sedimentary rocks to dateIt is difficult to study mudrock constituents, due to their diminutive size and susceptibility to weathering on outcropsAnd most importantly, there is more than one classification scheme accepted by scientistsMudrocks make up fifty percent of the sedimentary rocks in the geologic record, and are easily the most widespread deposits on Earth. Fine sediment is the most abundant product of erosion, and these sediments contribute to the overall omnipresence of mudrocks. With increased pressure over time the platey clay minerals may become aligned, with the appearance of fissility or parallel layering. This finely bedded material that splits readily into thin layers is called shale, as distinct from mudstone. The lack of fissility or layering in mudstone may be due either to original texture or to the disruption of layering by burrowing organisms in the sediment prior to lithification. From the beginning of civilization, when pottery and mudbricks were made by hand, to now, mudrocks have been important. The first book on mudrocks, Geologie des Argils by Millot, was not published until 1964; however, scientists, engineers, and oil producers have understood the significance of mudrocks since the discovery of the Burgess Shale and the relatedness of mudrocks and oil. Literature on the elusive yet omnipresent rock-type has been increasing in recent years, and technology continues to allow for better analysis.