Metamorphism, metamorphic rocks, and hydrothermal rocks

... recrystallize into stable ones • Rocks produced from pre-existing or parent rocks in this way are called metamorphic rocks bread toast Metamorphic Rocks • Metamorphic rocks common in the old, stable ... Hydrothermal processes add water for metamorphic reactions • Formation of hydrothermal rocks • Water passes through rocks and precipitates new minerals on walls of...

Ngày tải lên: 30/11/2016, 15:34

... Metamorphism, Metamorphic Rocks, and Hydrothermal Rocks Physical Geology 10/e, Chapter Steve Kadel, Glendale Community College Metamorphic Rocks • Metamorphism refers to solid-state changes ... pre-existing or parent rocks in this way are called metamorphic rocks • Metamorphic rocks common in the old, stable cores of continents, known as cratons Factors Controlling...

Ngày tải lên: 30/11/2016, 16:19

... stable ones • Rocks produced from pre-existing or parent rocks in this way are called metamorphic rocks • Metamorphic rocks common in the old, stable cores of continents, known as cratons Metamorphic ... of hydrothermal rocks • Water passes through rocks and precipitates new minerals on walls of cracks and in pore spaces • Metallic ore deposits often form this way (vei...

Ngày tải lên: 30/11/2016, 16:20

... http://www.lonelyplanet.com/mapshells/europe/scottish_highlands _and_ islands/scottish_highlands _and_ islands.htm http://www.clan-mackenzie.co.uk/graphics/highl Scottish Highlands http://www.scotland.de/photos/073l Scottish Highlands http://www.kentleton.evesham.net/Photo/03/0 ... http://www2002.stoke.gov.uk/museums/pmag/Nof_website1/natural_history_static_exhibitions/identifying_rock_minera...

Ngày tải lên: 30/11/2016, 16:35

... stable ones • Rocks produced from pre-existing or parent rocks in this way are called metamorphic rocks • Metamorphic rocks common in the old, stable cores of continents, known as cratons Metamorphic ... of hydrothermal rocks • Water passes through rocks and precipitates new minerals on walls of cracks and in pore spaces • Metallic ore deposits often form this way (vei...

Ngày tải lên: 30/11/2016, 16:36

... difference between the parent rock and the metamorphic rock Physical Geology Metamorphic Rocks Foliated Metamorphic Rocks Non-foliated Metamorphic Rocks Slate Anthracite Coal Phyllite Hornfels ... rock - the original rock from which a metamorphic rock was formed Parent rocks may be igneous, sedimentary, or metamorphic metamorphic grade - the intensity of metamorphism, m...

Ngày tải lên: 30/11/2016, 16:36

... (blueschist and eclogite metamorphism) Regional metamorphism Zone where wet fractional melting starts Contact metamorphism Figure 8.18 BE ABLE TO SKETCH THIS, AND EXPLAIN Plate Tectonics And Metamorphism ... under the coast of Alaska and the Aleutian Islands Figure 8.18 1-burial metamorphism; 2-high p, low T metamorphism Plate Tectonics And Metamorphism (3)  Regional...

Ngày tải lên: 29/09/2014, 20:55

... re-crystallize into new minerals • new rocks are metamorphic rocks • metamorphism occurs at depth; cannot see metamorphic rocks unless they are uplifted metamorphic rocks: controlling factors • parent ... surrounding rocks and transports dissolved material and ions time • metamorphism may take millions of years • longer times allow new minerals to grow larger coarser gr...

Ngày tải lên: 30/11/2016, 15:34

... the mantle Metamorphic Facies 2) Facies of medium pressure • Most exposed metamorphic rocks belong to the greenschist, amphibolite, or granulite facies • The greenschist and amphibolite facies conform ... garnet), characterizing this facies Sanidinite facies is not evident in basic rocks Mafic Assemblages of the High P/T Series: Blueschist and Eclogite Facies Mafi...

Ngày tải lên: 14/11/2014, 16:38

... absolute age dating • determination of amounts of radioactive parent and stable daughter Relative Age dating SED-MET ROCKS -AGE • Age determination method • relative and absolute age determination ... ROCKS -AGE • Age determination (geologic age) • important concepts used • relative age concepts • crosscutting and intrusive nature of igneous rocks • law of superpo...

Ngày tải lên: 30/11/2016, 15:37

... Metamorphic Rocks Foliations, and Lineations Topics • Fabrics • Foliation, cleavage, lineation – Cleavage and Folds – Geometry – Strain significance ... Recrystallization • Shear zones Geothermal Gradient and Metamorphism Naming of Metamorphic Rocks Slatey cleavage Gneiss Looks Like Bedding, but is it? Metamorphic layering Broosk Range, AK Isoclinal ... cleavage developmen...

Ngày tải lên: 30/11/2016, 16:07

... recrystallization Weathering, Erosion Melting Metamorphic Rocks Burial, metamorphism, recrystallization Sedimentary Rocks Northwest Igneous and Metamorphic Rocks Cascade Volcanoes (recent) Cascade ... Outline     Igneous Rocks Sedimentary Rocks Metamorphic Rocks Rock Identification Lab Rock Cycle Crystallization at depth or extrusion at surface Igneous Rocks...

Ngày tải lên: 30/11/2016, 16:20

... polarized light, 40x NNH-3 Actinolite in a greenstone Like most monoclinic amphiboles actinolite has birefringence in the lower 2nd order Twinning, possibly relic from the original augite, can be seen ... Cummingtonite in a hornblende - biotite - cummingtonite amphibolite Like most monoclinic amphiboles, birefringence is in the lower second order Cross polarized light, 100x Q-603C Cum...

Ngày tải lên: 29/09/2014, 17:15

... A Classification of Metamorphic Rocks • Metamorphic rocks are classified on the basis of composition (either mineralogical or chemical) and texture Mineralogy and Chemistry • Mineralogy and ... equant minerals such as feldspar and quartz ✦ Gneissic rocks are generally coarse grained ✦ Most commonly used to describe high-grade metamorphic rocks such as gneisses Classific...

Ngày tải lên: 30/11/2016, 15:31

... Art 7. 1 Figure 7. 5 New Minerals form New minerals are: Platy Elongate Figure 7. 6 Figure 7. 18 Effects of temperature and pressure Figure 7. 3 Pressure Figure 7. 4b Figure 7. 4a Figure 7. 1 Figure 7. 7a ... Figure 7. 7b Figure 7. 8a Marble Figure 7. 8a2 Marble in thin section Figure 7. 9 Quartzite Figure 7. 10a Slate Figure 7. 10b Slate Figure 7. 11 Phyllite Figure 7. 12 Ga...

Ngày tải lên: 30/11/2016, 15:32