File - Flipped Out Science with Mrs. Thomas!
... Satellite images have provided evidence for plate tectonics by showing the geologic features that form at the boundaries between tectonic plates. East Africa’s Great Rift Valley (left) is so large it can be seen from space. The San Andreas Fault (right) is slowly pulling southern California and part ...
... Satellite images have provided evidence for plate tectonics by showing the geologic features that form at the boundaries between tectonic plates. East Africa’s Great Rift Valley (left) is so large it can be seen from space. The San Andreas Fault (right) is slowly pulling southern California and part ...
metamorphism
... textures of igneous, sedimentary or other metamorphic rocks due to prolonged exposure to elevated temperatures and pressures (or increased grades of metamorphism) ...
... textures of igneous, sedimentary or other metamorphic rocks due to prolonged exposure to elevated temperatures and pressures (or increased grades of metamorphism) ...
C 2 = C 1 + h
... Pro- and retrograde metamorphic reactions play important roles for the dynamics in orogenic belts in that they give • Changes in petrophysical properties (density structure and hence evolution of topography) • Reaction enhanced deformation (increased strain (strain-rate) in zones of reaction) • Mate ...
... Pro- and retrograde metamorphic reactions play important roles for the dynamics in orogenic belts in that they give • Changes in petrophysical properties (density structure and hence evolution of topography) • Reaction enhanced deformation (increased strain (strain-rate) in zones of reaction) • Mate ...
Minerals and Rocks
... The diagram below represents a rock with a distorted layer structure. Is this rock foliated or Foliated nonfoliated? The distorted structure of this rock is most likely the result of ...
... The diagram below represents a rock with a distorted layer structure. Is this rock foliated or Foliated nonfoliated? The distorted structure of this rock is most likely the result of ...
MEET SOME ROCKS AND MINERALS
... When molten rock—particularly lava—cools quickly (like when volcanic pahoehoe lava cools when it touches ocean water), the atoms “freeze” into place without having time to “line up” and form large crystals. The solids that form may have small crystals or even no crystals at all. If there is no defin ...
... When molten rock—particularly lava—cools quickly (like when volcanic pahoehoe lava cools when it touches ocean water), the atoms “freeze” into place without having time to “line up” and form large crystals. The solids that form may have small crystals or even no crystals at all. If there is no defin ...
PETLAB2-14
... best done on the basis of structures and textures in the field and we will look at this aspect in more detail in the next lab. The first order question you must decide for any igneous rock is whether it is a volcanic or plutonic rock. After the field context of the rock sample, this is best answered ...
... best done on the basis of structures and textures in the field and we will look at this aspect in more detail in the next lab. The first order question you must decide for any igneous rock is whether it is a volcanic or plutonic rock. After the field context of the rock sample, this is best answered ...
Geol 101
... (2) along the ridge itself B. (1) seafloor spreading (2) along the coasts of N. America and Europe C. (1) seafloor spreading (2) with a striped pattern of repeating old and young rocks D. (1) subduction (2) along the ridge itself E. (1) subduction (2) along the coasts of N. America and Europe 4. As ...
... (2) along the ridge itself B. (1) seafloor spreading (2) along the coasts of N. America and Europe C. (1) seafloor spreading (2) with a striped pattern of repeating old and young rocks D. (1) subduction (2) along the ridge itself E. (1) subduction (2) along the coasts of N. America and Europe 4. As ...
meet some rocks and minerals
... When molten rock—particularly lava—cools quickly (like when volcanic pahoehoe lava cools when it touches ocean water), the atoms “freeze” into place without having time to “line up” and form large crystals. The solids that form may have small crystals or even no crystals at all. If there is no defin ...
... When molten rock—particularly lava—cools quickly (like when volcanic pahoehoe lava cools when it touches ocean water), the atoms “freeze” into place without having time to “line up” and form large crystals. The solids that form may have small crystals or even no crystals at all. If there is no defin ...
General Geology Lab #3: Igneous Rocks
... General Geology Lab #3: Igneous Rocks Name______________________________________ Please identify the following group of igneous rocks. Please determine whether they are intrusive (plutonic) or extrusive (volcanic). Indicate whether they are felsic, intermediate or mafic. Finally, answer the sample s ...
... General Geology Lab #3: Igneous Rocks Name______________________________________ Please identify the following group of igneous rocks. Please determine whether they are intrusive (plutonic) or extrusive (volcanic). Indicate whether they are felsic, intermediate or mafic. Finally, answer the sample s ...
plate tectonic theory
... • Transform Plate Boundaries: At these boundaries, tectonic plates slide horizontally past each other in opposite directions. • The San Andreas Fault cuts across the state of California. The San Andreas Fault is a transform boundary between the Pacific Plate and the North American Plate. • When tecto ...
... • Transform Plate Boundaries: At these boundaries, tectonic plates slide horizontally past each other in opposite directions. • The San Andreas Fault cuts across the state of California. The San Andreas Fault is a transform boundary between the Pacific Plate and the North American Plate. • When tecto ...
The chronology and geochemical characteristics of Jiuhuashan
... A-type granite. The granite is also enriched in Rb, Th, U, K and high field strength elements, and depleted in Ba, Sr, P and Ti. The geochemical characteristic of granite is similar to that of A-type granites. With negative ɛHf(t) values, the magma source of Jiuhuashan granite was considered as crus ...
... A-type granite. The granite is also enriched in Rb, Th, U, K and high field strength elements, and depleted in Ba, Sr, P and Ti. The geochemical characteristic of granite is similar to that of A-type granites. With negative ɛHf(t) values, the magma source of Jiuhuashan granite was considered as crus ...
Global Tectonics - dynamicearth.de
... (Viljoen & Viljoen, 1969), are varieties of Mg-rich basalt and ultramafic lava that occur almost exclusively in Archean crust. The high Mg content (>18 wt% MgO) of these rocks (Nisbet et al., 1993; Arndt et al., 1997) commonly is used to infer melting temperatures that are higher than those of moder ...
... (Viljoen & Viljoen, 1969), are varieties of Mg-rich basalt and ultramafic lava that occur almost exclusively in Archean crust. The high Mg content (>18 wt% MgO) of these rocks (Nisbet et al., 1993; Arndt et al., 1997) commonly is used to infer melting temperatures that are higher than those of moder ...
Word
... 4. We see bands of oceanic crustal rocks alongside mid-ocean ridges with alternating magnetic polarity (paleomagnetism) because… A. seafloor spreading occurs at mid-ocean ridges B. Earth’s magnetic field reverses about every half million years C. plate tectonics causes continents and ocean crust to ...
... 4. We see bands of oceanic crustal rocks alongside mid-ocean ridges with alternating magnetic polarity (paleomagnetism) because… A. seafloor spreading occurs at mid-ocean ridges B. Earth’s magnetic field reverses about every half million years C. plate tectonics causes continents and ocean crust to ...
Ductile shear zone and brittle faults in the southwestern slope of
... The Svishtiplaz allochthone was recognised by Kouykin and Milanov (1970) and Kouykin et al. (1971), who argued that this fault was the eastern continuation of Kashana thrust. Later it was assumed to be part of the Etropole thrust (Antonov, 1976). The thrust plane is traced along the northwestern and ...
... The Svishtiplaz allochthone was recognised by Kouykin and Milanov (1970) and Kouykin et al. (1971), who argued that this fault was the eastern continuation of Kashana thrust. Later it was assumed to be part of the Etropole thrust (Antonov, 1976). The thrust plane is traced along the northwestern and ...
Definition of a Cenozoic alkaline magmatic
... to explain the areal distribution of the volcanism, an unusually large plume would have to underlie the entire southwest Pacific, or there would have to be hundreds of hot spots, which are not observed. Clearly, new models for volcanism are required. Comparison of the location of volcanoes and seism ...
... to explain the areal distribution of the volcanism, an unusually large plume would have to underlie the entire southwest Pacific, or there would have to be hundreds of hot spots, which are not observed. Clearly, new models for volcanism are required. Comparison of the location of volcanoes and seism ...
GEOLOGY Regional Geology The Brucejack Property is located in
... Magmatic zircons constrain the volcano-sedimentary rock sequence underlying the Property to between c.196 Ma and c.182 Ma, consistent with previous stratigraphic interpretations which placed these rocks in the Lower Jurassic Lower Hazelton Group. Detrital zircons hosted in immature volcaniclastic co ...
... Magmatic zircons constrain the volcano-sedimentary rock sequence underlying the Property to between c.196 Ma and c.182 Ma, consistent with previous stratigraphic interpretations which placed these rocks in the Lower Jurassic Lower Hazelton Group. Detrital zircons hosted in immature volcaniclastic co ...
Mafic to Intermediate Plutons
... •Samples can be split into 2 distinct geochemical groups: Mafic and Intermediate •Petrography shows evidence of variable retrograde and prograde metamorphism in the epidote-amphibolite and amphibolite facies •Variable amounts of metamorphic fabric •Generally characterized by calc-alkaline geochemist ...
... •Samples can be split into 2 distinct geochemical groups: Mafic and Intermediate •Petrography shows evidence of variable retrograde and prograde metamorphism in the epidote-amphibolite and amphibolite facies •Variable amounts of metamorphic fabric •Generally characterized by calc-alkaline geochemist ...
Metamorphism and Metamorphic Reactions?
... was very poorly understood. Films and pictures (some even taken from the space shuttle) of the progress and development of recent eruption columns have provided valuable insight into the processes governing this most devastating volcanic phenomenon. Apart from the academic interest in the genesis of ...
... was very poorly understood. Films and pictures (some even taken from the space shuttle) of the progress and development of recent eruption columns have provided valuable insight into the processes governing this most devastating volcanic phenomenon. Apart from the academic interest in the genesis of ...
acting 101 homework check
... • SQUEEZING CAN ALSO BE CALLED THE STRESS OF _______. • A)SHEARING • B)COMPRESSION • C)TENSION ...
... • SQUEEZING CAN ALSO BE CALLED THE STRESS OF _______. • A)SHEARING • B)COMPRESSION • C)TENSION ...
Dynamic Earth Assessment Test Results
... 16. Which of the following geologic events can occur at a transform boundary? a. Earthquake b. Mountain formation c. Volcanic eruption d. Rift formation You answered correctly! 17. What is happening at the subduction zone of the Juan de Fuca and North American Plates? a. Plates are sliding past each ...
... 16. Which of the following geologic events can occur at a transform boundary? a. Earthquake b. Mountain formation c. Volcanic eruption d. Rift formation You answered correctly! 17. What is happening at the subduction zone of the Juan de Fuca and North American Plates? a. Plates are sliding past each ...
PDF - Rosemont EIS
... Large stocks intruded the Montoea Canyon area volcanic complex only a few million years after the last major volcanic eruption. The central major structural unit, between the Santa Rita and Sawmill Canyon fault zonea, is for the most part a eimple eastwarddipping homoclinal block. In the northeast c ...
... Large stocks intruded the Montoea Canyon area volcanic complex only a few million years after the last major volcanic eruption. The central major structural unit, between the Santa Rita and Sawmill Canyon fault zonea, is for the most part a eimple eastwarddipping homoclinal block. In the northeast c ...
Bedrock - NH Division of Forests and Lands
... was associated with the ancestral African continent which, at that time, was a part of the southern super-continent of “Gondwanaland”. As was the case with ancient North America, both Europe and Africa had different sizes, shapes, locations, and orientations then than they do now.) Beginning about 4 ...
... was associated with the ancestral African continent which, at that time, was a part of the southern super-continent of “Gondwanaland”. As was the case with ancient North America, both Europe and Africa had different sizes, shapes, locations, and orientations then than they do now.) Beginning about 4 ...
Advances in the geology of the Tobacco Root Mountains, Montana
... We name this event the Big Sky orogeny. The Proterozoic geology of the Tobacco Root Mountains can be integrated with coeval features of the geology of the northern Wyoming province to outline a northeast-trending, southeast-vergent belt as the Big Sky orogen. The Big Sky orogen consists of a metamor ...
... We name this event the Big Sky orogeny. The Proterozoic geology of the Tobacco Root Mountains can be integrated with coeval features of the geology of the northern Wyoming province to outline a northeast-trending, southeast-vergent belt as the Big Sky orogen. The Big Sky orogen consists of a metamor ...
Great Lakes tectonic zone
The Great Lakes tectonic zone is bounded by South Dakota at its tip and heads northeast to south of Duluth, Minnesota, then heads east through northern Wisconsin, Marquette, Michigan, and then trends more northeasterly to skim the northern-most shores of lakes Michigan and Huron before ending in the Sudbury, Ontario, Canada, area.During the Late Archean Era the Algoman orogeny added landmass to the Superior province by volcanic activity and continental collision along a boundary that stretches from present-day South Dakota, U.S., into the Lake Huron region near Sudbury, Ontario, Canada.This crustal boundary is the Great Lakes tectonic zone. It is 1,400 km (870 mi) long, and separates the older Archean gneissic terrane to the south from younger Late Archean greenstone-granite terrane to the north.The zone is characterized by active compression during the Algoman orogeny (about 2,700 million years ago), a pulling-apart (extensional) tectonics (2,450 to 2,100 million years ago), a second compression during the Penokean orogeny (1,900 to 1,850 million years ago), a second extension during Middle Proterozoic time (1,600 million years ago) and minor reactivation during Phanerozoic time (the past 500 million years).Collision began along the Great Lakes tectonic zone (GLTZ) with the Algoman mountain-building event and continued for tens of millions of years. During the formation of the GLTZ, the gneissic Minnesota River Valley subprovince was thrust up onto the Superior province's edge as it consumed the Superior province's oceanic crust. Fragmentation of the Kenorland supercontinent began 2,450 million years ago and was completed by 2,100 million years ago. The Wyoming province is the continental landmass that is hypothesized to have rifted away from the southern Superior province portion of Kenorland, before moving rapidly west and docking with the Laurentia supercontinent 1,850 to 1,715 million years ago. Sedimentation from the GLTZ-rifting environment continued into the Penokean orogeny, which is the next major tectonic event in the Great Lakes region. Several earthquakes have been documented in Minnesota, Michigan's Upper Peninsula and Sudbury in the last 120 years along the GLTZ.