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SGES 1302 Lecture16
SGES 1302 Lecture16

... Sedimentary rocks begin with the process of weathering. Wheathering, which is a set of physical, chemical and biological processes that breaks rock into smaller particles while some dissolved into solution. Gravity and erosion agents remove the products of weathering and carry them into a new locati ...
Isotope Geochemistry of the Continents
Isotope Geochemistry of the Continents

... (A) Distribution of Hf model ages in 1376 detrital and inherited zircons sampled worldwide, from which O isotopes have been measured (from Dhuime et al., 2012, and references ...
Chapter 2 Minerals and Rocks
Chapter 2 Minerals and Rocks

... Great heat and pressure can change one type of rock into another. Are these types of rock sedimentary, igneous, or metamorphic? Which rock can form from the other rock? ...
Standard III, Objective 1, Indicator A
Standard III, Objective 1, Indicator A

... 10. Which location shows older rocks above younger rocks? A. A B. B C. C D. D 11. Based on the diagram, what force most likely created the changes to the bottom three layers? A. compression causing folding B. compression causing stretching C. tension causing faulting D. tension causing waving 12. Wh ...
Unit 2 Vocabulary – Plate Tectonics
Unit 2 Vocabulary – Plate Tectonics

... continental drift hypothesis – the continents once formed a giant landmass (Pangaea), broke apart, and then drifted to their current locations mid-ocean ridge – a continuous mountain chain on the floor of all major ocean basins seafloor spreading – process where the sea floor spreads apart along bot ...
identifying igneous rocks in the field
identifying igneous rocks in the field

... in the diagram. On the other hand, granitic rocks on the left (i.e., alkaline series) side  of  the  diagram  tend  to  have  little  mafic  minerals,  which  though  commonly  display  characteristic green or dark‐blue colors (rather than the usual black). Rocks near the  silica  saturation  bounda ...
File
File

... above or the pressure of the two tectonic plates crashing into each other. The heat can come from the pressure or come from magma that is rising up through the rock. Pressure from the weight of the Earths crust ...
Structure
Structure

... layer as it intersects with a horizontal surface • Dip – is measured at right angles to strike and is the amount of tilting of the formation (angle at which the bed is inclined from the horizontal) ...
IM_chapter10 Mountain Building
IM_chapter10 Mountain Building

... 1. A large sample of “silly putty” can be used to illustrate how a given material can respond differently to different stresses, or stresses applied at different rates. If a ball of the material is dropped from a short distance onto a table top, it will bounce, and although a small amount of the str ...
History in Geography
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... continental drift theory was the first step in the development of plate tectonic theory, the foundation ...
File
File

... 5. The state of volcanoes currently spewing smoke, ash, steam, cinders, and/or lava 6. The state of volcanoes not currently active 7. Area around Pacific Plate where earthquakes and volcanoes are common, the Pacific 8. Openings in Earth’s crust that allow magma to reach the surface 9. Type of bounda ...
Unit 3 Earth Science..
Unit 3 Earth Science..

... 2. Sedimentary Rocks: Formed in layers as the result of moderate pressure on accumulated sediments. 3. Metamorphic Rocks: Formed from older "parent" rock (either igneous or sedimentary) under intense heat and/or pressure at considerable depths beneath the earth's surface. ...
blue mountain anticline at macedonia
blue mountain anticline at macedonia

... visible in an impressive roadcut at the eastern portion of the Lewistown Narrows along U.S. Route 322/22. The roadcut exposed the tip or nose of a complex asymmetrical fold, which plunges northeast. The fold contains smaller (lower) order folds and some sharp-angled chevron folds, low-angle thrust f ...
Every Rock Tells A Story - University of Minnesota Duluth
Every Rock Tells A Story - University of Minnesota Duluth

... Age – according to the state geologic map, the rocks in the Duluth area are mostly mafic igneous rocks which are part of the Midcontinent Rift formed about 1.1 billion ago. The Story – The Midcontinent Rift formed when the North American continent (then known as Laurentia) began to split apart about ...
1. Scientific evidence indicates that the concentration of oxygen in
1. Scientific evidence indicates that the concentration of oxygen in

... dramatically approximately 2 billion years ago. Which event most closely coincides with this change in Earth’s atmosphere? a. Mammals appeared on the land. b. Volcanic outgassing increased. c. Decay of organic matter increased. d. Photosynthetic organisms appeared. Answer D According to the dating t ...
AICE Env Day 1 Types of Faults Foldable Booklet
AICE Env Day 1 Types of Faults Foldable Booklet

... The fault plane in a reverse fault is also nearly vertical, but the hanging wall pushes up, and the footwall pushes down. This sort of fault forms where a plate is being compressed. A thrust fault moves the same way as a reverse fault, but at an angle of 45 degrees or less. In these faults, which ar ...
Quiz 1
Quiz 1

... 9. Which is an example of a pre-mineral structural feature? A. a strike-slip fault which offsets a galena-quartz vein B. an anticlinal fold which deforms shale containing disseminated sphalerite C. a fault with breccia containing a matrix of quartz-arsenopyrite D. an overturned syncline containing a ...
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3 Metamorphic Rocks

... 7. Gneiss (NISE), another foliated rock, forms when granite and other rocks are changed. 8. Foliation in gneiss shows up as alternating light and dark bands. 9. Movement of atoms has separated the dark minerals, such as biotite mica, from the light minerals, which are mainly quartz and feldspar. ...
Ch 3
Ch 3

... 7. Gneiss (NISE), another foliated rock, forms when granite and other rocks are changed. 8. Foliation in gneiss shows up as alternating light and dark bands. 9. Movement of atoms has separated the dark minerals, such as biotite mica, from the light minerals, which are mainly quartz and feldspar. ...
Geology and Mineral Resources: Kamloops-Cache Creek
Geology and Mineral Resources: Kamloops-Cache Creek

... 70.2 km View across valley of the Thompson River (to south) with benches formed of late glacial lacustrine (lake) silts ,  common to many Interior BC valleys, which were deposited in ice‐dammed lakes as the glacier retreated.  71.4 km Columnar jointed Kamloops Group volcanics above north side of roa ...
The Wilson Cycle and a The Wilson Cycle and a Tectonic Rock Cycle
The Wilson Cycle and a The Wilson Cycle and a Tectonic Rock Cycle

... • If you could walk across this land it would look flat and featureless • Underneath lies a lot of historical record. – To the east are eroded roots of the mountains exposing their batholiths and metamorphic rocks – To the west is a thick wedge of foreland basin sediments, but now buried in the subs ...
Metamorphic Rocks - Ring of Fire Science
Metamorphic Rocks - Ring of Fire Science

... The Himalayan Mountains are growing as the continental plates of Asia and India collide. Beneath these mountains, igneous, sedimentary and metamorphic rocks are changing as the minerals in the rocks adjust to the increasing heat and pressure caused by the two continents colliding. Oceanic plates sub ...
Lecture notes on Metamorphic Petrology
Lecture notes on Metamorphic Petrology

... It is define as a subsolidus process leading to change in mineralogy, structures (textures) and/or chemical composition of an igneous, sedimentary, or prior metamorphic rocks. These changes were made due to subjection of these rocks to physicochemical conditions (P, T, active chemical fluids) higher ...
Basalts and Ultramafic Volcanic Rocks
Basalts and Ultramafic Volcanic Rocks

... is building for a new eruption in the next few years Loihi, which erupted in 1996 All three of these active Hawaiian volcanoes share the Hawaiian hot spot, but retain unique volcanic histories and compositions. ...
The Rock Cycle and the three rock types File
The Rock Cycle and the three rock types File

... ridge, and acquires a sediment cover. As shown in the figure, in this case, the oceanic plate eventually "dives" under the adjacent continental plate. As the oceanic plate travels deeper, high temperature conditions cause partial melting of the crustal slab. When that occurs, the surrounding "countr ...
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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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