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Earth Science Reference Tables
Earth Science Reference Tables

... LATE TRIASSIC and EARLY JURASSIC conglomerates, red sandstones, red shales, and diabase (in Palisades Sill) PENNSYLVANIAN and MISSISSIPPIAN conglomerates, sandstones, and shales ...
Chapter 1: Philosophy and Fundamental Concepts
Chapter 1: Philosophy and Fundamental Concepts

... igneous activity - intermediate & felsic regional metamorphism (in long belts) ophiolites accreted terranes (west coast of North America) ...
The Rock Cycle - Union Academy
The Rock Cycle - Union Academy

... sedimentary rocks can change into metamorphic rocks, and a metamorphic rock can change into another type of metamorphic rock. Heat and pressure do not change the chemical makeup of the parent rocks but they do change the mineral structure and physical properties of those rocks. ...
Vocabulary Chapter 14
Vocabulary Chapter 14

...  Radioactive isotopes used for radiometric dating are found in igneous or metamorphic rocks, not sedimentary rocks, so they can not be used to date rocks that contain fossils but instead date rocks found close by ...
IE 2.1 Earth`s Crust in Motion
IE 2.1 Earth`s Crust in Motion

... • Mountain Ranges are groups of mountains that are closely related in shape, structure and ...
Earth Science Introduction
Earth Science Introduction

... • 3 hours to retreat of glaciers from Wisconsin • 12 days = 1 million years • 2 years to extinction of dinosaurs • 14 years to age of Niagara Escarpment • 31 years = 1 billion years ...
Y10 Earthquakes - Learning on the Loop
Y10 Earthquakes - Learning on the Loop

... Where does the old oceanic crust go? Collision zones – plates collide at boundaries. Rocks can fold into mountains like the Southern Alps. Earthquakes common Subduction – a less dense oceanic plates goes in under a continential coast – east of the North Island. ...
Metamorphism and Metamorphic Reactions?
Metamorphism and Metamorphic Reactions?

... Most examples of such metamorphism are clearly associated with contemporaneous magmatism, and lead to the old debate about the distinction between regional and contact metamorphism in situations where volcanism means that the magmatic heat input to the upper crust was much greater than that contribu ...
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Lecture 3 Acadia and Mesa Verde

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Changes Within the Earth

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Ch. 7 Plate Tectonics Section 1 Inside the Earth
Ch. 7 Plate Tectonics Section 1 Inside the Earth

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Physical Science - elyceum-beta
Physical Science - elyceum-beta

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Types of Rocks

... Metamorphic rocks are formed under the surface of the earth from the metamorphosis (change) that occurs due to intense heat and pressure (squeezing). The rocks that result from these processes often have ribbonlike layers and may have shiny crystals, formed by minerals growing slowly over time, on t ...
MOUNTAINS - cravenccgeology
MOUNTAINS - cravenccgeology

... The name for the processes that collectively produce a mountain belt is orogenesis. The rocks comprising mountains provide striking visual evidence of the enormous compressional forces that have deformed large sections of Earth’s crust. Although folding is often the most obvious sign of these forces ...
the geology of the moon
the geology of the moon

... craters large enough to be seen with Earth bound telescopes.  DOMES Small surface bulges within the maria areas, whose heights are 100 meters or so and diameters of several kilometers.  MASCONS Areas of very high mass concentration that lie beneath regular shaped maria, of debateable origin.  RIL ...
practice exam #1
practice exam #1

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28 - KaterinaCLHSportfolio
28 - KaterinaCLHSportfolio

... o Pg598: 1. Disconformity: When a horizontal layer of sedimentary rock overlies another horizontal layer of sedimentary rock, ; eroded surface. o 2. Nonconformity: When a layer of sedimentary rock overlies a layer of igneous or metamorphic rock, i.e. granite or marble, the eroded surface is easier t ...
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Why are plate margins hazardous? Ground

... are warm enough that they can flow like soft toffee left in the sun. The surface rocks (crust & upper mantle – called the lithosphere) are the coldest so are the most solid these break into large pieces called tectonic plates – these move about on the currents in the soft mantle rocks. Constructive ...
Part I. Earth`s Internal Structure and composition
Part I. Earth`s Internal Structure and composition

... Igneous rocks form from a cooling magma.    The composition (mineral makeup) of igneous rocks can be divided into two main groups:  1. Felsic (silicic) rocks: These are lighter colored rocks and include abundant quartz, potassium  feldspar. These rocks include Granite and Rhyolite.  2. Mafic Rocks:  ...
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G2S15Lesson1 Introd

... Quartz: Hard (cannot scratch with a knife), often gray or light-colored, no cleavage, no reaction to ...
Earth`s crust, the surface layer of the planet, is
Earth`s crust, the surface layer of the planet, is

... and unbroken. The forces that rage inside the planet have fractured this brittle layer. Some of these fractures, called faults, lie beneath the surface of the crust. Other faults, however, have ruptured the surface, cracking the crust into various-sized blocks of rock. These blocks dip and rise alon ...
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Guided Notes for Forces Within Earth

... deformation. This type of strain produces permanent deformation, which means that the material is deformed even if the stress is reduced to zero. ...
Rocks - TeacherWeb
Rocks - TeacherWeb

... Sandstones form in sandy environments such as beaches, sand bars, deltas and dunes ...
RESTLESS EARTH Chapter 3: Uniformitarianism​~ A principle that
RESTLESS EARTH Chapter 3: Uniformitarianism​~ A principle that

... undisturbed rock sequences around the world. They create a ​ geologic column​ which is an ideal sequence of rock layers that contains all the known fossils and rock formations on Earth arranged from oldest to youngest. ...
Rock - My CCSD
Rock - My CCSD

... solid mixture of crystals of one or more minerals. ...
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Algoman orogeny



The Algoman orogeny, known as the Kenoran orogeny in Canada, was an episode of mountain-building (orogeny) during the Late Archean Eon that involved repeated episodes of continental collisions, compressions and subductions. The Superior province and the Minnesota River Valley terrane collided about 2,700 to 2,500 million years ago. The collision folded the Earth's crust and produced enough heat and pressure to metamorphose the rock. Blocks were added to the Superior province along a 1,200 km (750 mi) boundary that stretches from present-day eastern South Dakota into the Lake Huron area. The Algoman orogeny brought the Archaen Eon to a close, about 2,500 million years ago; it lasted less than 100 million years and marks a major change in the development of the earth’s crust.The Canadian shield contains belts of metavolcanic and metasedimentary rocks formed by the action of metamorphism on volcanic and sedimentary rock. The areas between individual belts consist of granites or granitic gneisses that form fault zones. These two types of belts can be seen in the Wabigoon, Quetico and Wawa subprovinces; the Wabigoon and Wawa are of volcanic origin and the Quetico is of sedimentary origin. These three subprovinces lie linearly in southwestern- to northeastern-oriented belts about 140 km (90 mi) wide on the southern portion of the Superior Province.The Slave province and portions of the Nain province were also affected. Between about 2,000 and 1,700 million years ago these combined with the Sask and Wyoming cratons to form the first supercontinent, the Kenorland supercontinent.
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