File - GEOLOGY ROCKS!
... melted the sedimentary rocks producing: Metamorphic rocks (partially melted) and Igneous rocks (completely melted) ...
... melted the sedimentary rocks producing: Metamorphic rocks (partially melted) and Igneous rocks (completely melted) ...
Document
... iceberg) and asthenosphere (analogous to seawater). Tectonic plates ‘float’ at an elevation which depends on their thickness and relative density; thus high areas will have large lithospheric ‘roots’. Where a balance is achieved between topography and size of roots, lithosphere is said to be in isos ...
... iceberg) and asthenosphere (analogous to seawater). Tectonic plates ‘float’ at an elevation which depends on their thickness and relative density; thus high areas will have large lithospheric ‘roots’. Where a balance is achieved between topography and size of roots, lithosphere is said to be in isos ...
Rocks and Minerals
... As sediment is buried several kilometers beneath the surface, heated from below, pressure from overlying layers and chemically-active water converts the loose sediment into solid sedimentary rock ...
... As sediment is buried several kilometers beneath the surface, heated from below, pressure from overlying layers and chemically-active water converts the loose sediment into solid sedimentary rock ...
Document
... causes them to stick together. When built up energy causes them to break, earthquakes ...
... causes them to stick together. When built up energy causes them to break, earthquakes ...
Rock Cycle & Igneous Rocks
... Ultramafic rocks are dominated by olivine and/or pyroxene. Mafic rocks are dominated by plagioclase and pyroxene (even if you can't see them with the naked eye) and smaller amounts of olivine. Intermediate rocks are roughly even mixtures of felsic minerals (mainly plagioclase) and mafic minerals (ma ...
... Ultramafic rocks are dominated by olivine and/or pyroxene. Mafic rocks are dominated by plagioclase and pyroxene (even if you can't see them with the naked eye) and smaller amounts of olivine. Intermediate rocks are roughly even mixtures of felsic minerals (mainly plagioclase) and mafic minerals (ma ...
List and describe the 3 types of stress
... (San Andreas Fault) foot wall as tension subduction stress pulls the Ocean to rocks apart. continental=subduction Continental to continental = mountain building The rocks move past each other. The shear Divergent: Mid stress pushes the rocks ocean ridges and horizontally rift valleys Convergent: sub ...
... (San Andreas Fault) foot wall as tension subduction stress pulls the Ocean to rocks apart. continental=subduction Continental to continental = mountain building The rocks move past each other. The shear Divergent: Mid stress pushes the rocks ocean ridges and horizontally rift valleys Convergent: sub ...
Faults are classified by how rocks move
... Record information about each type of fault in your notebook. ...
... Record information about each type of fault in your notebook. ...
Coastal Zones - hrsbstaff.ednet.ns.ca
... – (1) the Acadian Basin, an area of Triassic rocks in the Bay of Fundy and northern Gulf of Maine, – (2) terrestrial bedrock extending to 25 km off-shore along the Atlantic coast of Nova Scotia and into basins on the south side of the Gulf of Maine, – (3) an outer area comprising the Middle and Oute ...
... – (1) the Acadian Basin, an area of Triassic rocks in the Bay of Fundy and northern Gulf of Maine, – (2) terrestrial bedrock extending to 25 km off-shore along the Atlantic coast of Nova Scotia and into basins on the south side of the Gulf of Maine, – (3) an outer area comprising the Middle and Oute ...
southern alps: geology - Geoscience Research Institute
... triggers subduction of the oceanic crust. Rocks get caught in the subduction zone and form a subduction prism. Phase 3: The two continents collide, interrupting the subduction process and determining the rupture of the subducted slab. Magma rises through the window created by the slab break-off. Not ...
... triggers subduction of the oceanic crust. Rocks get caught in the subduction zone and form a subduction prism. Phase 3: The two continents collide, interrupting the subduction process and determining the rupture of the subducted slab. Magma rises through the window created by the slab break-off. Not ...
exploring the proterozoic big sky orogeny in southwest montana
... North American basement is revealed only in the cores of Mesozoic to Tertiary uplifted fault blocks, because younger deposits and younger events have buried and overprinted the Precambrian cratons. These fragmentary and discontinuous exposures provide the evidence by which the process of continental ...
... North American basement is revealed only in the cores of Mesozoic to Tertiary uplifted fault blocks, because younger deposits and younger events have buried and overprinted the Precambrian cratons. These fragmentary and discontinuous exposures provide the evidence by which the process of continental ...
Plate Tectonics Activity
... 2. Place 2 pieces of foam on the tables and begin to move one piece (the one without the cardboard edge toward the other). 3. Describe the processes that you see. 4. Draw a picture of the process. Note** Earthquakes commonly occur along the length of the subducted slab and compressional structures ( ...
... 2. Place 2 pieces of foam on the tables and begin to move one piece (the one without the cardboard edge toward the other). 3. Describe the processes that you see. 4. Draw a picture of the process. Note** Earthquakes commonly occur along the length of the subducted slab and compressional structures ( ...
Historical Geology, Chapter 1 Learning Objectives and Study
... on a geologic map or in a cross-section, and justify your decisions. 3. Draw a diagram of the geologic time scale and label the names and beginning and ending dates of the major subdivisions discussed in class. 4. Draw a neatly labeled cross-section that shows the structure of Earth’s lithosphere an ...
... on a geologic map or in a cross-section, and justify your decisions. 3. Draw a diagram of the geologic time scale and label the names and beginning and ending dates of the major subdivisions discussed in class. 4. Draw a neatly labeled cross-section that shows the structure of Earth’s lithosphere an ...
Magmatic and non-magmatic history of the Tyrrhenain backarc
... data. Here we present two analyses; the first one is focused on the spatial variability of magmatism along the Cornaglia Terrace axis, where magmatic-type crust has been previously interpreted. The comparison of three different seismic refraction transects, acquired across the basin axis from North ...
... data. Here we present two analyses; the first one is focused on the spatial variability of magmatism along the Cornaglia Terrace axis, where magmatic-type crust has been previously interpreted. The comparison of three different seismic refraction transects, acquired across the basin axis from North ...
Notes: Laramide orogeny
... The Laramide orogeny refers to a phase of mountain building from approximately 80 million years ago to 40 million years ago Laramide uplifts are topographically high areas that were create during this period. Although the cause of these uplifts is still debated, the uplifts are almost certainly rel ...
... The Laramide orogeny refers to a phase of mountain building from approximately 80 million years ago to 40 million years ago Laramide uplifts are topographically high areas that were create during this period. Although the cause of these uplifts is still debated, the uplifts are almost certainly rel ...
Classifying Rocks
... Made of two or more different minerals that have been: • cemented together • squeezed and heated together • melted and cooled together. ...
... Made of two or more different minerals that have been: • cemented together • squeezed and heated together • melted and cooled together. ...
Dear Mr Jacobs - Australian Institute of Geoscientists
... American Geophysical Union (AGU) Fall meeting held at the Moscone Centre, San Francisco. The AGU meeting is viewed as a major gathering on the geophysical and geological community calendars. Every year the meeting attracts a large number of international delegates and is seen as an excellent opportu ...
... American Geophysical Union (AGU) Fall meeting held at the Moscone Centre, San Francisco. The AGU meeting is viewed as a major gathering on the geophysical and geological community calendars. Every year the meeting attracts a large number of international delegates and is seen as an excellent opportu ...
What are Sedimentary Rocks?
... Rock Color • The color of a sedimentary rock will be determined by the cementing material and sediment composition • Red Sandstone – means the rock has iron in it that has been exposed to air (rusting). ...
... Rock Color • The color of a sedimentary rock will be determined by the cementing material and sediment composition • Red Sandstone – means the rock has iron in it that has been exposed to air (rusting). ...
Formation of metamorphic rocks in Ireland | sample answer
... put under great heat or pressure or both. The first type of metamorphism is Thermal metamorphism, this is when rocks are changed as a result of great heat, a common place to see this is around volcanic eruptions. The Sugar Loaf mountain found in Wicklow, Ireland is comprised of the metamorphic rock ...
... put under great heat or pressure or both. The first type of metamorphism is Thermal metamorphism, this is when rocks are changed as a result of great heat, a common place to see this is around volcanic eruptions. The Sugar Loaf mountain found in Wicklow, Ireland is comprised of the metamorphic rock ...
UR/Cf8()._ (0
... reservoir of original fertile mantle also produced variations in magma type. The Dundas and Smithton Troughs of western Tasmania were formed within the relatively unmetamorphosed Precambrian sedimentary rock successions of the Rocky Cape region. In the Dundas Trough, initial sedimentary infilling of ...
... reservoir of original fertile mantle also produced variations in magma type. The Dundas and Smithton Troughs of western Tasmania were formed within the relatively unmetamorphosed Precambrian sedimentary rock successions of the Rocky Cape region. In the Dundas Trough, initial sedimentary infilling of ...
Seismic, Well, and Gravity Constraints on the Structure and
... proved weaker in the long run, causing extension to shift further south to form the modern Gulf of Mexico. The model predicts very little rift-related magmatism, consistent with observations on the Gulf continental margins. By comparison with International Ocean Drilling Program results on the n ...
... proved weaker in the long run, causing extension to shift further south to form the modern Gulf of Mexico. The model predicts very little rift-related magmatism, consistent with observations on the Gulf continental margins. By comparison with International Ocean Drilling Program results on the n ...
Cracking Up
... the Great Rift Valley, where Africa is pulling apart. Recently, that tectonic activity has gotten dramatic. In 2005, the cracking of the African Plate triggered a volcanic eruption in Ethiopia. That was followed by a series of earthquakes—the same ones the nomads felt. The earthquakes occurred as ma ...
... the Great Rift Valley, where Africa is pulling apart. Recently, that tectonic activity has gotten dramatic. In 2005, the cracking of the African Plate triggered a volcanic eruption in Ethiopia. That was followed by a series of earthquakes—the same ones the nomads felt. The earthquakes occurred as ma ...
3. Caledonian Orogenesis
... Undeformed batholith emplaced at a depth of 5kn. Now exposed due to erosion and uplift. Coarse-grained and felsic in colour. Found at Shap. Skiddaw, Ennerdale and Eskdale. Gravity anomaly data suggests that these intrusions all join up to form one large batholith. ...
... Undeformed batholith emplaced at a depth of 5kn. Now exposed due to erosion and uplift. Coarse-grained and felsic in colour. Found at Shap. Skiddaw, Ennerdale and Eskdale. Gravity anomaly data suggests that these intrusions all join up to form one large batholith. ...
Marine Life Zones Why the Ocean? Regions that contain
... • Regions that contain characteristic organisms that interact with one another and with their environment • They can be divided into two categories: – Horizontal Zones – Vertical Zones ...
... • Regions that contain characteristic organisms that interact with one another and with their environment • They can be divided into two categories: – Horizontal Zones – Vertical Zones ...
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.