Lab-Isostasy.doc
... It is a somewhat puzzling fact that we observe piles of sediment, up to several kilometers deep, that was entirely deposited in a shallow ocean environment. In this exercise we simulate a coastal mountain range, such as the Appalachians, and associated coastal margin sedimentation. We will simulate ...
... It is a somewhat puzzling fact that we observe piles of sediment, up to several kilometers deep, that was entirely deposited in a shallow ocean environment. In this exercise we simulate a coastal mountain range, such as the Appalachians, and associated coastal margin sedimentation. We will simulate ...
Rocks and the Rock Cycle
... A. James Hutton (1795) began concept of uniformitarianism, which states that: 1. The same geologic processes have always been at work. 2. These processes formed the Earth as it is today over a long period of time. B. Rock (def'n) - a group of minerals bound together in some way. C. Igneous rocks for ...
... A. James Hutton (1795) began concept of uniformitarianism, which states that: 1. The same geologic processes have always been at work. 2. These processes formed the Earth as it is today over a long period of time. B. Rock (def'n) - a group of minerals bound together in some way. C. Igneous rocks for ...
Ocean-Ocean Subduction Zones System
... • Burial and exhumation of high-pressure metamorphic rocks in subduction zones are likely affected by progressive hydration (serpentinization) of the fore-arc mantle lithosphere; • The shape of the P–T path, and the maximum P–T conditions achieved by an individual high-pressure metamorphic rock, dep ...
... • Burial and exhumation of high-pressure metamorphic rocks in subduction zones are likely affected by progressive hydration (serpentinization) of the fore-arc mantle lithosphere; • The shape of the P–T path, and the maximum P–T conditions achieved by an individual high-pressure metamorphic rock, dep ...
C1b 6.2 The Restless Earth
... meet, the effects include: plates juddering past each other producing earthquakes the continental plate buckles upwards whilst the oceanic plate subducts (goes underground) ...
... meet, the effects include: plates juddering past each other producing earthquakes the continental plate buckles upwards whilst the oceanic plate subducts (goes underground) ...
Sea-Floor Spreading - Madison County Schools
... able to look into a rift valley and examine something called pillow lava, which is a special type of solid rock that only forms on the ocean floor when magma cools very rapidly. This proved that new molten material was being added to the ocean floor at these ridges. ...
... able to look into a rift valley and examine something called pillow lava, which is a special type of solid rock that only forms on the ocean floor when magma cools very rapidly. This proved that new molten material was being added to the ocean floor at these ridges. ...
Types of Rock and the Rock Cycle
... igneous, and metamorphic rocks can undergo tremendous heat and pressure inside the Earth. This changes the minerals themselves in the rocks or their grain size, forming new metamorphic rocks. Sedimentary, metamorphic, and igneous rocks can be transported to ...
... igneous, and metamorphic rocks can undergo tremendous heat and pressure inside the Earth. This changes the minerals themselves in the rocks or their grain size, forming new metamorphic rocks. Sedimentary, metamorphic, and igneous rocks can be transported to ...
Chapter 02
... 18. The vast single ocean present about 200 million years ago is called A. Sinus Borealis. B. Pangaea. C. Tethys. D. Panthalassa. E. Gondwana. 19. Lithogenous sediments are those that come from A. plants. B. living organisms in general. C. deep-water volcanoes. D. erosion of land. E. corals. 20. The ...
... 18. The vast single ocean present about 200 million years ago is called A. Sinus Borealis. B. Pangaea. C. Tethys. D. Panthalassa. E. Gondwana. 19. Lithogenous sediments are those that come from A. plants. B. living organisms in general. C. deep-water volcanoes. D. erosion of land. E. corals. 20. The ...
Lecture 8: Plate Boundaries
... • Presence moderate temperatures – Venus is too hot so lithosphere never cool enough to subduct • Heat removal from mantle through subduction of cool oceanic lithosphere and upwelling of new crust – Drives convection cells – Allows basalt eclogite transition to be shallow – Subduction leads to fract ...
... • Presence moderate temperatures – Venus is too hot so lithosphere never cool enough to subduct • Heat removal from mantle through subduction of cool oceanic lithosphere and upwelling of new crust – Drives convection cells – Allows basalt eclogite transition to be shallow – Subduction leads to fract ...
RECOLLECTION The discovery of the Earth`s oldest rocks Stephen
... Despite the secondary nature of the Isua rocks themselves (see above) there is ample evidence from their lead isotope ratios that some of the rocks, or more probably their immediate precursors, were derived from an unexposed source region with an age of up to 4.2–4.3 Gyr, which most probably had a m ...
... Despite the secondary nature of the Isua rocks themselves (see above) there is ample evidence from their lead isotope ratios that some of the rocks, or more probably their immediate precursors, were derived from an unexposed source region with an age of up to 4.2–4.3 Gyr, which most probably had a m ...
The Rock Cycle - PAMS
... Aphanitic: fine grained (basalt) very small interlocking crystals, very difficult to see with the “naked” eye Phaneritic: coarse grained (granite) interlocking crystals roughly the same size Porphyritic (Trachtye) large crystals scattered on a background of smaller crystals Felsic: light colored ...
... Aphanitic: fine grained (basalt) very small interlocking crystals, very difficult to see with the “naked” eye Phaneritic: coarse grained (granite) interlocking crystals roughly the same size Porphyritic (Trachtye) large crystals scattered on a background of smaller crystals Felsic: light colored ...
Document
... Creep on The Hayward Fault •On Strike-slip Faults (like the Hayward Fault), there is something else in addition to earthquakes that relieves strain from plate tectonics: C reep. •According to the USGS, creep is basically “slow, more or less continuous movement occurring on faults due to ongoing tec ...
... Creep on The Hayward Fault •On Strike-slip Faults (like the Hayward Fault), there is something else in addition to earthquakes that relieves strain from plate tectonics: C reep. •According to the USGS, creep is basically “slow, more or less continuous movement occurring on faults due to ongoing tec ...
Lab 2 Plate Tectonics and Ocean Geography OCE-3014L
... Part II. Seafloor Spreading Your instructor has lithospheric plate/divergent boundary models. Working in groups of three or more, assemble a model so that Plate A (continental lithosphere) and Plate B (continental lithosphere) are joined as one continent—this configuration is the 15 million years ag ...
... Part II. Seafloor Spreading Your instructor has lithospheric plate/divergent boundary models. Working in groups of three or more, assemble a model so that Plate A (continental lithosphere) and Plate B (continental lithosphere) are joined as one continent—this configuration is the 15 million years ag ...
Unit 4 Ch 9 to 12 and 7 Workbook KEY
... epicentre is located. Three seismographs are required. At each seismograph location the difference in arrival time is measured. The greater the difference in arrival times the further away the epicentre, because S waves get further and further behind. This difference in time determines how far away ...
... epicentre is located. Three seismographs are required. At each seismograph location the difference in arrival time is measured. The greater the difference in arrival times the further away the epicentre, because S waves get further and further behind. This difference in time determines how far away ...
A. Sedimentary Rock
... How they are formed A. Weathering – wearing away of the rock which breaks them into smaller pieces 1. Chemical weathering – occurs when the minerals in a rock are dissolved or otherwise chemically changed 2. Physical weathering – rock fragments break off along fractures or grain boundaries; minerals ...
... How they are formed A. Weathering – wearing away of the rock which breaks them into smaller pieces 1. Chemical weathering – occurs when the minerals in a rock are dissolved or otherwise chemically changed 2. Physical weathering – rock fragments break off along fractures or grain boundaries; minerals ...
Continental Drift & Seafloor Spreading
... Newer rock will have less deposits on it- more dense, more layers, older rock is at the trenches ...
... Newer rock will have less deposits on it- more dense, more layers, older rock is at the trenches ...
Plate Tectonics - Galena Park ISD
... Features on Earth’s crust can be observed as consequences of plate tectonics. A convergent boundary occurs when two plates collide. Depending upon the type of crustal material at the boundary of the colliding plates, volcanoes, mountains and ocean trenches can form. A divergent boundary occurs whe ...
... Features on Earth’s crust can be observed as consequences of plate tectonics. A convergent boundary occurs when two plates collide. Depending upon the type of crustal material at the boundary of the colliding plates, volcanoes, mountains and ocean trenches can form. A divergent boundary occurs whe ...
topic_4_5 - Earth and Environmental Sciences
... given depth beneath the continental interiors by looking at mineral compositions in blocks of mantle material from near the base of the plate (xenoliths) transported in explosive volcanic eruptions. Because the mineral compositions are sensitive to temperature and pressure, we can measure their com ...
... given depth beneath the continental interiors by looking at mineral compositions in blocks of mantle material from near the base of the plate (xenoliths) transported in explosive volcanic eruptions. Because the mineral compositions are sensitive to temperature and pressure, we can measure their com ...
Dating the Growth of Oceanic Crust at a Slow
... Nineteen uranium-lead zircon ages of lower crustal gabbros from Atlantis Bank, Southwest Indian Ridge, constrain the growth and construction of oceanic crust at this slow-spreading midocean ridge. Approximately 75% of the gabbros accreted within error of the predicted seafloor magnetic age, whereas ...
... Nineteen uranium-lead zircon ages of lower crustal gabbros from Atlantis Bank, Southwest Indian Ridge, constrain the growth and construction of oceanic crust at this slow-spreading midocean ridge. Approximately 75% of the gabbros accreted within error of the predicted seafloor magnetic age, whereas ...
Earthquake
... Figure 5: Which half of the reverse fault slid up and across to form this mountain, hanging wall or the footwall? Explain. • The hanging wall slipped up and across. If the ...
... Figure 5: Which half of the reverse fault slid up and across to form this mountain, hanging wall or the footwall? Explain. • The hanging wall slipped up and across. If the ...
EASTERN ARIZONA COLLEGE Physical Geology
... ENG 091 with a grade of “C” or higher or reading placement test score as established by District policy Educational Value This course meets the lab/science general studies requirement for graduation and is part of the required curriculum for geology majors. Geology imparts a uniquely broad perspecti ...
... ENG 091 with a grade of “C” or higher or reading placement test score as established by District policy Educational Value This course meets the lab/science general studies requirement for graduation and is part of the required curriculum for geology majors. Geology imparts a uniquely broad perspecti ...
Geophysics
Geophysics /dʒiːoʊfɪzɪks/ is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis. The term geophysics sometimes refers only to the geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial relations; and analogous problems associated with the Moon and other planets.Although geophysics was only recognized as a separate discipline in the 19th century, its origins go back to ancient times. The first magnetic compasses were made from lodestones, while more modern magnetic compasses played an important role in the history of navigation. The first seismic instrument was built in 132 BC. Isaac Newton applied his theory of mechanics to the tides and the precession of the equinox; and instruments were developed to measure the Earth's shape, density and gravity field, as well as the components of the water cycle. In the 20th century, geophysical methods were developed for remote exploration of the solid Earth and the ocean, and geophysics played an essential role in the development of the theory of plate tectonics.Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection. Geophysical survey data are used to analyze potential petroleum reservoirs and mineral deposits, locate groundwater, find archaeological relics, determine the thickness of glaciers and soils, and assess sites for environmental remediation.