Landforms
... Faults may also be recognized by debris, breccia, clay, or rock fragments that break apart or are pulverized during the movement of the rocks along the fault plane. Fault ‘gouge’ is a term used to describe the material produced by faulting. If a fault plane is exposed, there may be grooves, striatio ...
... Faults may also be recognized by debris, breccia, clay, or rock fragments that break apart or are pulverized during the movement of the rocks along the fault plane. Fault ‘gouge’ is a term used to describe the material produced by faulting. If a fault plane is exposed, there may be grooves, striatio ...
Lecture17
... STRESS BUILDS UNTIL IT EXCEEDS ROCK STRENGTH Earthquakes are the result of stress that builds up over time. ...
... STRESS BUILDS UNTIL IT EXCEEDS ROCK STRENGTH Earthquakes are the result of stress that builds up over time. ...
Measuring Earthquakes
... the earth’s surface). They can occur at all 3 major plate boundaries but the most severe earthquakes are normally found at conservative and convergent plate boundaries. ...
... the earth’s surface). They can occur at all 3 major plate boundaries but the most severe earthquakes are normally found at conservative and convergent plate boundaries. ...
Plate Tectonic Vocabulary Chapter 10 Pages 239-260
... a. large landmasses formed in the past from smaller continents. b. the large continents that exist today. c. pieces of large landmasses that broke apart. d. large oceans that covered Earth in the past. ...
... a. large landmasses formed in the past from smaller continents. b. the large continents that exist today. c. pieces of large landmasses that broke apart. d. large oceans that covered Earth in the past. ...
Chapter 6 - Cloudfront.net
... 3. The same rocks were found on different continents 4. Mountain ranges on different continents appear to be once connected 5. Similar glacial deposits were found on different continents ...
... 3. The same rocks were found on different continents 4. Mountain ranges on different continents appear to be once connected 5. Similar glacial deposits were found on different continents ...
Midterm Review
... Asthenosphere: Weak. It is solid, but behaves like a viscous fluid (convective flow) over geological time scales. ...
... Asthenosphere: Weak. It is solid, but behaves like a viscous fluid (convective flow) over geological time scales. ...
Potassium-Argon and Argon-Argon Dating of Crustal Rocks and the
... Domains within the mantle and crust have been identified and the interaction between them described, all of which is relevant to the migration and circulation of Ar (and thus excess 40Ar*) from the lower mantle through the crust.14 The six domains are physically distinct units which exhibit wide dif ...
... Domains within the mantle and crust have been identified and the interaction between them described, all of which is relevant to the migration and circulation of Ar (and thus excess 40Ar*) from the lower mantle through the crust.14 The six domains are physically distinct units which exhibit wide dif ...
Earth Forces - Jordanhill School
... your table what you would do during an earthquake and when it has finished. ...
... your table what you would do during an earthquake and when it has finished. ...
Use this page to answer questions 1 – 3.
... rock rises up, cools down, and then falls back down; this happens in a circle motion. When the continents and plates move it's called the Theory of Plate Tectonics. These plates drift all over the globe; they move both horizontally (sideways) and vertically (up and down). ...
... rock rises up, cools down, and then falls back down; this happens in a circle motion. When the continents and plates move it's called the Theory of Plate Tectonics. These plates drift all over the globe; they move both horizontally (sideways) and vertically (up and down). ...
The geology of vertical movements of the lithosphere
... The cartoon of Fig. 2 shows the diverse mechanisms that produce large-scale uplift or subsidence at the lithospheric scale. Vertical movements occur at plate boundary regions, in close association with plate kinematics, and also in intraplate regions, partly independently from the interplate tectoni ...
... The cartoon of Fig. 2 shows the diverse mechanisms that produce large-scale uplift or subsidence at the lithospheric scale. Vertical movements occur at plate boundary regions, in close association with plate kinematics, and also in intraplate regions, partly independently from the interplate tectoni ...
Plate Tectonics Powerpoint PDF
... geographic features associated with them (e.g., continental rifts and mid-ocean ridges, volcanic and island arcs, deep-sea trenches, transform faults). ...
... geographic features associated with them (e.g., continental rifts and mid-ocean ridges, volcanic and island arcs, deep-sea trenches, transform faults). ...
The Earth`s Structure - Geog
... 2. Pattern of rocks - Similar pattern of rock layers on different continents is evidence that the rocks were once close together or joined. 3. Shape of continents fit together like a jigsaw ...
... 2. Pattern of rocks - Similar pattern of rock layers on different continents is evidence that the rocks were once close together or joined. 3. Shape of continents fit together like a jigsaw ...
IGNEOUS ROCKS
... – Ancient mountain ranges that are now plains • e.g, Wolf River Batholith in Wisconsin ...
... – Ancient mountain ranges that are now plains • e.g, Wolf River Batholith in Wisconsin ...
GEO 1010 - I 1. 2. 3. 4. - Research at UVU
... A large earthquake may (hopefully) result from a fault breaking and sliding along only one segment of the fault’s entire length. For example, UVU is on the Provo segment (Payson to Pt. of the Mtn.) of the Wasatch fault. SLC is on the Salt Lake Segment (Pt of the Mtn. to about the State Capitol). The ...
... A large earthquake may (hopefully) result from a fault breaking and sliding along only one segment of the fault’s entire length. For example, UVU is on the Provo segment (Payson to Pt. of the Mtn.) of the Wasatch fault. SLC is on the Salt Lake Segment (Pt of the Mtn. to about the State Capitol). The ...
Geophysical and Geochemical Approaches
... Geophysical observations: A wide-angle seismic profile was acquired roughly coincident with the seaward end of the BIRPS WAM reflection profile (Peddy et al., 1989), extending from magnetic anomaly 34 to the foot of the continental slope. Our new data were supplemented at the landward end by data fr ...
... Geophysical observations: A wide-angle seismic profile was acquired roughly coincident with the seaward end of the BIRPS WAM reflection profile (Peddy et al., 1989), extending from magnetic anomaly 34 to the foot of the continental slope. Our new data were supplemented at the landward end by data fr ...
Plate Tectonics Wholly, completely
... a) Forces which power the movement of the plates arise from the inner core. b) Horizontal convection currents move just a few centimeters a year. c) All tectonic plates move at the same speed - very slowly. 3. What is the name of the ocean trench which is parallel with the Andes? Plate Boundaries Th ...
... a) Forces which power the movement of the plates arise from the inner core. b) Horizontal convection currents move just a few centimeters a year. c) All tectonic plates move at the same speed - very slowly. 3. What is the name of the ocean trench which is parallel with the Andes? Plate Boundaries Th ...
Plate_tectonics_Ss_2014
... a) Forces which power the movement of the plates arise from the inner core. b) Horizontal convection currents move just a few centimeters a year. c) All tectonic plates move at the same speed - very slowly. 3. What is the name of the ocean trench which is parallel with the Andes? Plate Boundaries Th ...
... a) Forces which power the movement of the plates arise from the inner core. b) Horizontal convection currents move just a few centimeters a year. c) All tectonic plates move at the same speed - very slowly. 3. What is the name of the ocean trench which is parallel with the Andes? Plate Boundaries Th ...
Volcanoes Reading - SOEST
... below depicting mantle plumes and large igneous provinces (LIPs). Interestingly, the rocks that make up LIPs and hot spot islands have a very similar composition to those found at MOR, except there are some notable differences in their trace element composition. Explaining these differences is beyon ...
... below depicting mantle plumes and large igneous provinces (LIPs). Interestingly, the rocks that make up LIPs and hot spot islands have a very similar composition to those found at MOR, except there are some notable differences in their trace element composition. Explaining these differences is beyon ...
oceanic crust - Science by Shaw
... he could not explain HOW the continents could move. In the late 1950s-1960s, scientists found evidence that plates DID drift as part of a process that inv0lves the entire surface of our planet, “Plate tectonics.” Mid-ocean ridge: discovered by scientists during World War II, a continuous chain o ...
... he could not explain HOW the continents could move. In the late 1950s-1960s, scientists found evidence that plates DID drift as part of a process that inv0lves the entire surface of our planet, “Plate tectonics.” Mid-ocean ridge: discovered by scientists during World War II, a continuous chain o ...
Earthquakes
... Normal and the thrust faulting are examples of dip slip, where the displacement along the fault is in the direction of dip and movement on them involves a vertical component. ...
... Normal and the thrust faulting are examples of dip slip, where the displacement along the fault is in the direction of dip and movement on them involves a vertical component. ...
Subduction Zone Earthquakes graph lab
... worldwide distribution and depths of earthquakes are important evidence for plate tectonics. They help geologist delineate active plate boundaries and infer locations of ancient plate boundaries. Most earthquakes have shallow focus depths (0 to 70 km below the surface), which makes sense since earth ...
... worldwide distribution and depths of earthquakes are important evidence for plate tectonics. They help geologist delineate active plate boundaries and infer locations of ancient plate boundaries. Most earthquakes have shallow focus depths (0 to 70 km below the surface), which makes sense since earth ...
Isostasy
... Using Isostasy to solve a problem Many tectonic problems involving vertical crustal dynamics can be solved by setting up a simple pressure balance equation for a system in isostatic equilibrium. Imagine a vertical column extending from sea level or the land surface down to some deep depth within the ...
... Using Isostasy to solve a problem Many tectonic problems involving vertical crustal dynamics can be solved by setting up a simple pressure balance equation for a system in isostatic equilibrium. Imagine a vertical column extending from sea level or the land surface down to some deep depth within the ...
Earthquake intensity, elastic rebound theory and plate boundaries.
... blocks can move relative to each other. Focus: The location on a fault where earthquake rupture initiates. Hypocentre: The calculated position of an earthquake focus. Epicentre: That point on the Earth's surface directly above the hypocentre. Magnitude: A measure of the strength of an earthquake, as ...
... blocks can move relative to each other. Focus: The location on a fault where earthquake rupture initiates. Hypocentre: The calculated position of an earthquake focus. Epicentre: That point on the Earth's surface directly above the hypocentre. Magnitude: A measure of the strength of an earthquake, as ...
Post-glacial rebound
Post-glacial rebound (sometimes called continental rebound) is the rise of land masses that were depressed by the huge weight of ice sheets during the last glacial period, through a process known as isostatic depression. Post-glacial rebound and isostatic depression are different parts of a process known as either glacial isostasy, glacial isostatic adjustment, or glacioisostasy. Glacioisostasy is the solid Earth deformation associated with changes in ice mass distribution. The most obvious and direct affects of post-glacial rebound are readily apparent in northern Europe (especially Scotland, Estonia, Latvia, Fennoscandia, and northern Denmark), Siberia, Canada, the Great Lakes of Canada and the United States, the coastal region of the US state of Maine, parts of Patagonia, and Antarctica. However, through processes known as ocean siphoning and continental levering, the effects of post-glacial rebound on sea-level are felt globally far from the locations of current and former ice sheets.