Classifying Metamorphic Rocks
... or layering orientation of their minerals. Non-foliated textures are composed of either randomly oriented platy minerals or minerals that are not foliated. Non-foliated metamorphic rocks are composed of mineral grains that don’t form layers. Marble and quartzite are the best examples. Metamorphic ro ...
... or layering orientation of their minerals. Non-foliated textures are composed of either randomly oriented platy minerals or minerals that are not foliated. Non-foliated metamorphic rocks are composed of mineral grains that don’t form layers. Marble and quartzite are the best examples. Metamorphic ro ...
FAIRLY SIMPLE ROCK IDENTIFICATION John J. Thomas Purpose
... rock and ask what kind it is and why they found it where they did. This exercise is not a comprehensive rock identification course. It is not designed to make you a perfect rock identifier, nor will it. The real purpose is to introduce the students (and you) to how to identify rocks and give them (a ...
... rock and ask what kind it is and why they found it where they did. This exercise is not a comprehensive rock identification course. It is not designed to make you a perfect rock identifier, nor will it. The real purpose is to introduce the students (and you) to how to identify rocks and give them (a ...
Skills Worksheet
... remain ______________________ at pressures and temperatures that would melt other rock. 5. Pressure caused by large movements within the crust sometimes cause the ______________________ in metamorphic rocks to align themselves in parallel bands. 6. During ______________________, rock is heated by ne ...
... remain ______________________ at pressures and temperatures that would melt other rock. 5. Pressure caused by large movements within the crust sometimes cause the ______________________ in metamorphic rocks to align themselves in parallel bands. 6. During ______________________, rock is heated by ne ...
3 Sedimentary Rock
... the Earth’s surface. Then the sediment is deposited in layers on the Earth’s surface. As new layers are deposited, they cover older layers. The weight of the new layers compacts, or squeezes, the sediment in the older layers. Water within the sediment layers can contain dissolved minerals, such as c ...
... the Earth’s surface. Then the sediment is deposited in layers on the Earth’s surface. As new layers are deposited, they cover older layers. The weight of the new layers compacts, or squeezes, the sediment in the older layers. Water within the sediment layers can contain dissolved minerals, such as c ...
Lesson 1: Valuable materials from out of the ground
... then fired in a kiln. The colour of the brick depends on the mineral content of the original clay and the way that it is fired. Clay is a sedimentary rock, made up of tiny mineral particles that were originally part of another quite different rock. The original rock may have been changed by the Eart ...
... then fired in a kiln. The colour of the brick depends on the mineral content of the original clay and the way that it is fired. Clay is a sedimentary rock, made up of tiny mineral particles that were originally part of another quite different rock. The original rock may have been changed by the Eart ...
Lesson 1: Valuable materials from out of the ground
... then fired in a kiln. The colour of the brick depends on the mineral content of the original clay and the way that it is fired. Clay is a sedimentary rock, made up of tiny mineral particles that were originally part of another quite different rock. The original rock may have been changed by the Eart ...
... then fired in a kiln. The colour of the brick depends on the mineral content of the original clay and the way that it is fired. Clay is a sedimentary rock, made up of tiny mineral particles that were originally part of another quite different rock. The original rock may have been changed by the Eart ...
Introduction
... • The weight of accumulating sediments, in addition to compressional forces in the crust, forced the eastern edge of the North American continent to gradually fold downward • The shallow carbonate deposition that had persisted on the shelf margin through Late Cambrian into Early Ordovician time, gav ...
... • The weight of accumulating sediments, in addition to compressional forces in the crust, forced the eastern edge of the North American continent to gradually fold downward • The shallow carbonate deposition that had persisted on the shelf margin through Late Cambrian into Early Ordovician time, gav ...
Louisiana Rocks and Minerals
... An LSU Museum of Natural Science presentation to accompany the activity ...
... An LSU Museum of Natural Science presentation to accompany the activity ...
Rocks and Weathering
... – Abrasion- grinding away of rock by rock particles carried by water, ice, wind or gravity ...
... – Abrasion- grinding away of rock by rock particles carried by water, ice, wind or gravity ...
Directed Reading A (Lesson 4-4) Section: Metamorphic Rock
... 4. The heat and pressure at which some metamorphic rocks originally form allow them to sometimes remain ______________________ at pressures and temperatures that would melt other rock. 5. Pressure caused by large movements within the crust sometimes cause the ______________________ in metamorphic ro ...
... 4. The heat and pressure at which some metamorphic rocks originally form allow them to sometimes remain ______________________ at pressures and temperatures that would melt other rock. 5. Pressure caused by large movements within the crust sometimes cause the ______________________ in metamorphic ro ...
Geologic Time & Fossils
... The oldest rocks on the moon are 4-4.6 billion years old. We think that the earth and the moon formed at about the same time. Why are earth’s younger? ...
... The oldest rocks on the moon are 4-4.6 billion years old. We think that the earth and the moon formed at about the same time. Why are earth’s younger? ...
Glossary (PDF file)
... is scratched by the other substance, it is softer. igneous rock Rock that forms when molten (melted) rock cools and hardens. Igneous rock can form underground or at Earth’s surface. Molten rock underground is called magma. Molten rock that reaches Earth’s surface is called lava. limestone Rock made ...
... is scratched by the other substance, it is softer. igneous rock Rock that forms when molten (melted) rock cools and hardens. Igneous rock can form underground or at Earth’s surface. Molten rock underground is called magma. Molten rock that reaches Earth’s surface is called lava. limestone Rock made ...
IESO 2012 Written TEST: Geosphere
... 9. M, Z and P are sedimentary beds that have been Closer to each other affected by a reverse fault. Will the boundaries between the sedimentary beds be closer or farther apart in the northern block? ...
... 9. M, Z and P are sedimentary beds that have been Closer to each other affected by a reverse fault. Will the boundaries between the sedimentary beds be closer or farther apart in the northern block? ...
Sedimentary weathering
... Sedimentary Materials • Sedimentary rocks cover 80% of the earth’s surface but only comprise ~1% of the volume of the crust (they are generally NOT dense either!) ...
... Sedimentary Materials • Sedimentary rocks cover 80% of the earth’s surface but only comprise ~1% of the volume of the crust (they are generally NOT dense either!) ...
The rock cycle shows how rock change.
... change into other types of rocks called a cycle? Which type of rock would you expect to be common on the floor of a large, deep lake? Why? ...
... change into other types of rocks called a cycle? Which type of rock would you expect to be common on the floor of a large, deep lake? Why? ...
Deposition, Weathering, and Erosion - ESC-2
... What is Chemical Weathering? • Breakdown of rock into smaller pieces because of change in the chemical composition of its minerals. – Chemical reactions break down the bonds holding the rocks together, causing them to fall ...
... What is Chemical Weathering? • Breakdown of rock into smaller pieces because of change in the chemical composition of its minerals. – Chemical reactions break down the bonds holding the rocks together, causing them to fall ...
Types of Rocks
... Sedimentary rock is formed by erosion Sediments are moved from one place to another Sediments are deposited in layers, with the older ones on the bottom The layers become compacted and cemented together http://www.fi.edu/fellows/payton/rocks/create/sediment.htm ...
... Sedimentary rock is formed by erosion Sediments are moved from one place to another Sediments are deposited in layers, with the older ones on the bottom The layers become compacted and cemented together http://www.fi.edu/fellows/payton/rocks/create/sediment.htm ...
Fossils - hs science @ cchs
... • The hard parts completely dissolve over time, leaving behind a hollow area with the organism’s shape. • A cast forms as the result of a mold. • Water with dissolved minerals and sediment fills the mold’s empty ...
... • The hard parts completely dissolve over time, leaving behind a hollow area with the organism’s shape. • A cast forms as the result of a mold. • Water with dissolved minerals and sediment fills the mold’s empty ...
Wind direction
... Any natural process that removes sediments and carries them away from one place to another is called erosion. Gravity is the driving force behind all erosion. Everything on earth is constantly being pulled toward the earth’s center by gravity. Any particle of matter that is free to move is going to ...
... Any natural process that removes sediments and carries them away from one place to another is called erosion. Gravity is the driving force behind all erosion. Everything on earth is constantly being pulled toward the earth’s center by gravity. Any particle of matter that is free to move is going to ...
Laboratory #4: Metamorphic Rocks
... 2. Scratch Glass, Porcelain Plate, Copper Penny, Iron Nail, Magnets, HCl 3. Hand lens ...
... 2. Scratch Glass, Porcelain Plate, Copper Penny, Iron Nail, Magnets, HCl 3. Hand lens ...
Batuan metamorfik - USM :: Universiti Sains Malaysia
... alignment of sheet-like minerals. Types of foliation: • Schistosity - alignment of large mica flakes, as in a mica schist derived from the metamorphism of shale. • Slaty cleavage - alignment of very fine-grained micas, as in a slate derived from the metamorphism of shale. • Phyllitic structure - ali ...
... alignment of sheet-like minerals. Types of foliation: • Schistosity - alignment of large mica flakes, as in a mica schist derived from the metamorphism of shale. • Slaty cleavage - alignment of very fine-grained micas, as in a slate derived from the metamorphism of shale. • Phyllitic structure - ali ...
New Rock from Old - Faculty Server Contact
... pores between rock grains heat up during metamorphism and can speed up chemical reactions. When there are abundant pore fluids involved in metamorphism, it is called metasomatism ...
... pores between rock grains heat up during metamorphism and can speed up chemical reactions. When there are abundant pore fluids involved in metamorphism, it is called metasomatism ...
Document
... change into other minerals. 5. Minerals might change in size or shape, or they sometimes separate into ______________________ that give rocks a layered appearance. 6. Hot fluids from magma can circulate through the rock and change the mineral ______________________by dissolving some minerals and add ...
... change into other minerals. 5. Minerals might change in size or shape, or they sometimes separate into ______________________ that give rocks a layered appearance. 6. Hot fluids from magma can circulate through the rock and change the mineral ______________________by dissolving some minerals and add ...
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.