Geology Lecture 8 Plate Tectonics and Hotspots
... Unifying theory of geology • Extension of Wegener’s continental drift theory from the early 20th century • Needed not only information about rocks but also breakthroughs in geochronology and geophysics • Continental drift failed to provide a sufficient mechanism (tides and wind were not enough); pl ...
... Unifying theory of geology • Extension of Wegener’s continental drift theory from the early 20th century • Needed not only information about rocks but also breakthroughs in geochronology and geophysics • Continental drift failed to provide a sufficient mechanism (tides and wind were not enough); pl ...
Warm- up Question Summarize: What you know about Continental
... On the thin strips, color the areas marked with an N purple and the areas marked with an S orange. On the base, color the area with the slit purple and the area directly to the right and left of the slit area orange. Alternate these colors as you go away from the center. Cut along the dotted lines, ...
... On the thin strips, color the areas marked with an N purple and the areas marked with an S orange. On the base, color the area with the slit purple and the area directly to the right and left of the slit area orange. Alternate these colors as you go away from the center. Cut along the dotted lines, ...
oceans - Sir C R R College
... It is the break-up of PANGAEA, a large rigid slab-a plate ,into many ...
... It is the break-up of PANGAEA, a large rigid slab-a plate ,into many ...
geol_15_activity_2
... 6. Lithospheric Plates: Color the primary lithospheric plates. Part 2: Tectonic Plate Spreading Rates We can calculate an average rate of seafloor spreading by measuring the distance between MOR's, then divide the distance by the and age of seafloor rocks collected there (e.g. such as from ODP cores ...
... 6. Lithospheric Plates: Color the primary lithospheric plates. Part 2: Tectonic Plate Spreading Rates We can calculate an average rate of seafloor spreading by measuring the distance between MOR's, then divide the distance by the and age of seafloor rocks collected there (e.g. such as from ODP cores ...
L03 - D4 - Teacher - Processes of Plate Tectonics
... the Himalayas. The Tibetan plateau, formed next to the Himalayas, is higher than most of the mountains in Europe or North America. The depth of subducted plates can cause earthquakes to occur deep (300 to 700 km) within the earth. Earthquakes with a focus at these depths are called “deep-focus” eart ...
... the Himalayas. The Tibetan plateau, formed next to the Himalayas, is higher than most of the mountains in Europe or North America. The depth of subducted plates can cause earthquakes to occur deep (300 to 700 km) within the earth. Earthquakes with a focus at these depths are called “deep-focus” eart ...
3 The Changing Continents
... The movements of ocean water affect Earth’s climate. Cool ocean water that flows near a continent can make the continent cooler. Warm water flowing near a continent can make the continent warmer. The positions of the continents affect the movement of ocean water. The movement of ocean water affects ...
... The movements of ocean water affect Earth’s climate. Cool ocean water that flows near a continent can make the continent cooler. Warm water flowing near a continent can make the continent warmer. The positions of the continents affect the movement of ocean water. The movement of ocean water affects ...
From the Nebo website: http://www.nebo.edu/misc
... Wind and water break down the earth Bits of earth settle in lakes and rivers Layers are formed and build up Pressure and time turn the layers to rock ...
... Wind and water break down the earth Bits of earth settle in lakes and rivers Layers are formed and build up Pressure and time turn the layers to rock ...
Earth Science - Connections Academy
... When different minerals mix together, they form rocks. There are three main types of rocks on Earth—igneous, sedimentary, and metamorphic—each of which forms in a unique way. Rocks can change from one type to another because of the rock cycle, which you will learn about, and the constant changes wit ...
... When different minerals mix together, they form rocks. There are three main types of rocks on Earth—igneous, sedimentary, and metamorphic—each of which forms in a unique way. Rocks can change from one type to another because of the rock cycle, which you will learn about, and the constant changes wit ...
Plate Tectonics Answers to Student Booklet.doc
... Year 9 Plate Tectonics Unit Answers to Student Booklet Note that the answers given below are not the only possible correct answers to many of the questions. The Plate Tectonics Theory ...
... Year 9 Plate Tectonics Unit Answers to Student Booklet Note that the answers given below are not the only possible correct answers to many of the questions. The Plate Tectonics Theory ...
Hawaiian Slumps
... resolution of geophysical techniques and cannot be resolved by numerical or theoretical computation. They give no signal and have no measurable effect. The geophysical effects (bathymetry, geoid, tomography) of the large flattened plume heads are little different from alternative models of upper man ...
... resolution of geophysical techniques and cannot be resolved by numerical or theoretical computation. They give no signal and have no measurable effect. The geophysical effects (bathymetry, geoid, tomography) of the large flattened plume heads are little different from alternative models of upper man ...
ELECTRICAL CONDUCTIVITY MEASUREMENT OF GRANULITE SAMPLE UNDER LOWER CRUSTAL PRESSURE- TEMPERATURE CONDITIONS
... previously been measured, yet both wadsleyite and ringwoodite, which compose a substantial proportion of the transition zone, can incorporate up to several weight percent water into their structures. Knowing the effect of dissolved water on the electrical conductivities of these minerals may thus pr ...
... previously been measured, yet both wadsleyite and ringwoodite, which compose a substantial proportion of the transition zone, can incorporate up to several weight percent water into their structures. Knowing the effect of dissolved water on the electrical conductivities of these minerals may thus pr ...
F2007_311_summary_V
... weathering processes. – CO2 dissolves in water to produce carbonic acid (acid rain) which reacts chemically with rock to decompose it. When carbonate rocks weather they liberate calcium and bicarbonate ions which wash into ocean. There they get ingested by sea organisms to generate their shells (of ...
... weathering processes. – CO2 dissolves in water to produce carbonic acid (acid rain) which reacts chemically with rock to decompose it. When carbonate rocks weather they liberate calcium and bicarbonate ions which wash into ocean. There they get ingested by sea organisms to generate their shells (of ...
Heat Conduction
... 1,820 K numerical models of the top 700 km of the Earth, using day geodynamics of the Earth. Because the Earth’s interior 293 K in the Archaean eon, the oceanic crust may have been thicker, thereby temperature-dependent densities and visco-plastic rheologies that depend making the oceanic lithospher ...
... 1,820 K numerical models of the top 700 km of the Earth, using day geodynamics of the Earth. Because the Earth’s interior 293 K in the Archaean eon, the oceanic crust may have been thicker, thereby temperature-dependent densities and visco-plastic rheologies that depend making the oceanic lithospher ...
tectonic forces
... Tectonic plate movement may be caused by all of the following EXCEPT— A slab pull B ridge push C convection D magnetism ...
... Tectonic plate movement may be caused by all of the following EXCEPT— A slab pull B ridge push C convection D magnetism ...
uganda - the potential source for minerals
... • 2004-2011: World Bank/IDA, African Development Bank, Nordic Development Fund, and Government of Uganda • Geoscience Data – Airborne Geophysical Surveys: 700,000 line-kms of magnetic, radiometric & EM to be acquired. – To date approx. 558,000 line-kms flown with completion expected by Feb 09 ...
... • 2004-2011: World Bank/IDA, African Development Bank, Nordic Development Fund, and Government of Uganda • Geoscience Data – Airborne Geophysical Surveys: 700,000 line-kms of magnetic, radiometric & EM to be acquired. – To date approx. 558,000 line-kms flown with completion expected by Feb 09 ...
structure of lithosphere velocity heterogeneities in kamchtaka and
... (up to about 200 km depth) that serves for uniform high precision earthquake location and as initial reference model for 3D tomography. The model is calculated with program VELEST that has a number of advantages, in particular, the program iteratively solves the coupled hypocentervelocity model prob ...
... (up to about 200 km depth) that serves for uniform high precision earthquake location and as initial reference model for 3D tomography. The model is calculated with program VELEST that has a number of advantages, in particular, the program iteratively solves the coupled hypocentervelocity model prob ...
Note Packet
... This alteration is called ________________________. These changes are NOT caused by MELTING. If the rock melted and cooled it would be an IGNEOUS ROCK. ...
... This alteration is called ________________________. These changes are NOT caused by MELTING. If the rock melted and cooled it would be an IGNEOUS ROCK. ...
Chapter 1: Introduction
... Other areas of flat subduction are reported, mostly based on the location of the WadatiBenioff zone. Gutscher et al. (2000b) even state that 10% of the modern subduction zones show flat subduction. Unfortunately, examination of all these regions is usually more difficult due to the tectonic complexi ...
... Other areas of flat subduction are reported, mostly based on the location of the WadatiBenioff zone. Gutscher et al. (2000b) even state that 10% of the modern subduction zones show flat subduction. Unfortunately, examination of all these regions is usually more difficult due to the tectonic complexi ...
8 Geology Revision
... b. Igneous came from the word “Ignis” which means _____________ c. Igneous rocks form as liquid ________ or ________ cools, forming crystalstructured rocks. d. There are many different types of igneous rocks depending on where they are formed and their ___________ composition. e. Intrusive rocks - I ...
... b. Igneous came from the word “Ignis” which means _____________ c. Igneous rocks form as liquid ________ or ________ cools, forming crystalstructured rocks. d. There are many different types of igneous rocks depending on where they are formed and their ___________ composition. e. Intrusive rocks - I ...
4. Where Volcanoes are Found PPT
... 3b - Students know the principal structures that form at the three different kinds of plate boundaries. 3c - Students know the explanation for the location and properties of volcanoes that are due to hot spots and the explanation for those that are due to subduction. ...
... 3b - Students know the principal structures that form at the three different kinds of plate boundaries. 3c - Students know the explanation for the location and properties of volcanoes that are due to hot spots and the explanation for those that are due to subduction. ...
Document
... What causes tectonic plates to move? • Scientists have proposed three mechanisms to explain how tectonic plates move: mantle convection, ridge push, and slab pull. • Hotter parts of the mantle rise as cooler, denser parts sink. This kind of movement of material due to differences in density is calle ...
... What causes tectonic plates to move? • Scientists have proposed three mechanisms to explain how tectonic plates move: mantle convection, ridge push, and slab pull. • Hotter parts of the mantle rise as cooler, denser parts sink. This kind of movement of material due to differences in density is calle ...
Snack Tectonics Summary: Students create a tasty model that
... Have students draw what each situation looks like in cross section (by looking at the edge of their model). BACKGROUND INFORMATION: The main force that shapes our planet's surface over long amounts of time is the movement of Earth's outer layer by the process of plate tectonics. The rigid outer laye ...
... Have students draw what each situation looks like in cross section (by looking at the edge of their model). BACKGROUND INFORMATION: The main force that shapes our planet's surface over long amounts of time is the movement of Earth's outer layer by the process of plate tectonics. The rigid outer laye ...
Lecture 10 Stratigraphy and Geologic Time
... the total extent of sedimentary rocks in the region. ...
... the total extent of sedimentary rocks in the region. ...
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.