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The Rock Cycle.

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Presentation on theme: "The Rock Cycle."— Presentation transcript:

1 The Rock Cycle

2 Formation of new minerals
Metamorphosed Sedimentary Rock Formation of new minerals Recrystallization/deformation

3 Recrystallization

4 Recrystallization Limestone under microscope Marble under microscope
5 mm 5 mm

5 Differential stress and the development of Slate

6 Slate and Slaty cleavage
Product of differential stress at low metamorphic grade Slate under the microscope Cleavage Cleavage Bedding Bedding

7 Differential Stress and Folding

8 Slaty cleavage and folding
Fold under the microscope Cleavage Cleavage

9 Metamorphism and the formation of new minerals
Chlorite + muscovite = garnet + biotite + H2O Garnet (Fe,Mg)3Al2Si3O12 Chlorite (Mg,Fe)6(Si,Al)4O10(OH)8 Muscovite (KAl3Si3O10(OH)2) Biotite (KAl(Mg,Fe)3Si3O10(OH)2)

10 Shistosity defined by muscovite
Schist Shistosity defined by muscovite Muscovite schist Garnet-biotite schist

11 Gneiss Highest metamorphic grade Muscovite converted to feldspar 1 cm

12 Partial melting Formation of migmatites

13 Metamorphism of Shale Hornfels

14 Sheet silicates in Metamorphism
Muscovite (KAl3Si3O10(OH)2) Chlorite (Mg,Fe)6(Si,Al)4O10(OH)8 Biotite (KAl(Mg,Fe)3Si3O10(OH)2)

15 Metamorphic Index Minerals
Garnet (Fe,Mg)3Al2Si3O12 Staurolite (Fe,Mg)2Al9Si4O23(OH) Sillimanite Al2SiO5

16 The Aluminosilicate minerals (Al2SiO5) and metamorphic grade
Kyanite Staurolite Andalusite Sillimanite

17 The Aluminosilicate minerals and metamorphic grade

18 Metamorphic reactions and metamorphic grade
Muscovite + Quartz = K-feldspar + sillimanite + H2O Sillimanite Quartz K-feldspar Muscovite

19 Metamorphic Facies

20 Basalt metamorphosed to different facies
Greenschist facies (chlorite) Basalt metamorphosed to different facies Amphibolite facies (Ca-amphibole) Blueschist facies (Na-amphibole)

21 Basalt at very high metamorphic grade
Granulite facies Pyroxene, garnet Basalt at very high metamorphic grade Eclogite facies Na-pyroxene, garnet

22 Mineralogy and Metamorphic Facies

23 Metamorphic Facies and P-T Paths

24 Metamorphic path during subduction

25 Metamorphic path during continental collision

26 Kilauea eruption of 2014

27 Kilauea 2014 eruption in late October

28 Kilauea eruption in late October 2014

29 Kilauea eruption in late October 2014

30 Kilauea eruption in late October 2014

31 Measuring the temperature of the Kilauea lava flow

32 Metamorphic Map


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