to view the Slideshow
... trenches are as deep as 35,000 feet below the ocean surface, are long and narrow, and run parallel to and near the shoreline of continents. They are associated with and parallel to large continental mountain ranges as well. This type of plate movement is called Convergent. ...
... trenches are as deep as 35,000 feet below the ocean surface, are long and narrow, and run parallel to and near the shoreline of continents. They are associated with and parallel to large continental mountain ranges as well. This type of plate movement is called Convergent. ...
Mantle & Crust
... • Sampled by xenoliths, occasionally exposed by crustal deformation – Peridotite – Eclogite ...
... • Sampled by xenoliths, occasionally exposed by crustal deformation – Peridotite – Eclogite ...
Geology-Sheet-3-Carboniferous-Period
... of the Carboniferous period. It was warmer and more humid, and there were no distinct seasons. Average global temperature was 20°C in the early Carboniferous - it is only about 12°C today. Later during the Carboniferous, global temperatures cooled to levels similar to today, and there was a great ic ...
... of the Carboniferous period. It was warmer and more humid, and there were no distinct seasons. Average global temperature was 20°C in the early Carboniferous - it is only about 12°C today. Later during the Carboniferous, global temperatures cooled to levels similar to today, and there was a great ic ...
Continental Drift and Plate Tectonics
... As the sea floor spreads, the lava cools according to the magnetic poles at the time. The rocks on the ocean floor have proved that the earth’s magnetic field sometimes reverses. The inner core flips and so the north pole moves to the southern hemisphere! The earthh itself does not flip. ...
... As the sea floor spreads, the lava cools according to the magnetic poles at the time. The rocks on the ocean floor have proved that the earth’s magnetic field sometimes reverses. The inner core flips and so the north pole moves to the southern hemisphere! The earthh itself does not flip. ...
Word document - teachearthscience.org
... The process of seafloor spreading created the seafloor of the oceans. For example, in the Atlantic Ocean, North America and South America moved away from Europe and Africa and the resulting crack was filled by mantle material, which cooled and formed new lithosphere. The process continues today. Mol ...
... The process of seafloor spreading created the seafloor of the oceans. For example, in the Atlantic Ocean, North America and South America moved away from Europe and Africa and the resulting crack was filled by mantle material, which cooled and formed new lithosphere. The process continues today. Mol ...
Colliding and Spreading Plates
... Convection currents generated by the uneven heating of magma in the Earth’s interior are what cause Earth’s crust to break apart and move. ...
... Convection currents generated by the uneven heating of magma in the Earth’s interior are what cause Earth’s crust to break apart and move. ...
THE LITHOSPERE AND PLATE TECTONICS The layer of the
... The layer of the mantle above the asthenosphere plus the entire crust make up a region called the lithosphere. The lithosphere, and therefore, the earth's crust, is not a continuous shell, but is broken into a series of plates that independently "float" upon the asthenosphere, much like a raft on th ...
... The layer of the mantle above the asthenosphere plus the entire crust make up a region called the lithosphere. The lithosphere, and therefore, the earth's crust, is not a continuous shell, but is broken into a series of plates that independently "float" upon the asthenosphere, much like a raft on th ...
plate tectonics
... • The upper mantle and crust (lithosphere) lie on the lower mantle which is fluid. The rocks in the lower mantle (asthenosphere) move in a fluid manner because of the high temperatures and pressures in it. • Currents in the lower mantle form convection cells which cause the plates to float. Types of ...
... • The upper mantle and crust (lithosphere) lie on the lower mantle which is fluid. The rocks in the lower mantle (asthenosphere) move in a fluid manner because of the high temperatures and pressures in it. • Currents in the lower mantle form convection cells which cause the plates to float. Types of ...
Modeling Seafloor Spreading
... The process of seafloor spreading created the seafloor of the oceans. For example, in the Atlantic Ocean, North America and South America moved away from Europe and Africa and the resulting crack was filled by mantle material, which cooled and formed new lithosphere. The process continues today. ...
... The process of seafloor spreading created the seafloor of the oceans. For example, in the Atlantic Ocean, North America and South America moved away from Europe and Africa and the resulting crack was filled by mantle material, which cooled and formed new lithosphere. The process continues today. ...
CD vs. PT
... As the sea floor spreads, the lava cools according to the magnetic poles at the time. The rocks on the ocean floor have proved that the earth’s magnetic field sometimes reverses. The inner core flips and so the north pole moves to the southern hemisphere! The earthh itself does not flip. ...
... As the sea floor spreads, the lava cools according to the magnetic poles at the time. The rocks on the ocean floor have proved that the earth’s magnetic field sometimes reverses. The inner core flips and so the north pole moves to the southern hemisphere! The earthh itself does not flip. ...
Cross-section of East African Rift Valley
... Antarctica is not fixed but moved. vii) Palaeomagnetism: Igneous rocks when cooled retain a certain magnetisation, the result of the presence of grains of substances containing iron which were aligned and permanently magnetized in accordance with the direction of the earth's magnetic field at that t ...
... Antarctica is not fixed but moved. vii) Palaeomagnetism: Igneous rocks when cooled retain a certain magnetisation, the result of the presence of grains of substances containing iron which were aligned and permanently magnetized in accordance with the direction of the earth's magnetic field at that t ...
Geography 12
... the growth of continents or cratons by the addition of new rocks along their edges through mountain-building activity or collisions with other blocks of continental crust. ...
... the growth of continents or cratons by the addition of new rocks along their edges through mountain-building activity or collisions with other blocks of continental crust. ...
Weathering and Erosion
... and that by waves. • Stream erosion - can carry and deposit material, running water in a stream can carry materials that attack the bedrock of the river and create deeper valleys, materials are then deposited at the mouth, or end of the river, usually to form a delta. • Waves erosion - storm waves c ...
... and that by waves. • Stream erosion - can carry and deposit material, running water in a stream can carry materials that attack the bedrock of the river and create deeper valleys, materials are then deposited at the mouth, or end of the river, usually to form a delta. • Waves erosion - storm waves c ...
Earth Inside Out Sculpting the
... past are beginning to explain why parts of the earth’s surface have undergone these astonishing ups and downs. The mystery of the African superswell was among the easiest to decipher. Since the early half of the 20th century, geophysicists have understood that over the unceasing expanse of geologic ...
... past are beginning to explain why parts of the earth’s surface have undergone these astonishing ups and downs. The mystery of the African superswell was among the easiest to decipher. Since the early half of the 20th century, geophysicists have understood that over the unceasing expanse of geologic ...
Geology: Inside the Earth Chapter 1 Notes and Vocabulary
... Essential Question: What causes volcanoes and how do they affect Earth’s surface? As tectonic plates move due to _____________ ___________ in Earth’s _________, __________ builds up along the lithosphere’s ________________ and weak areas in Earth’s crust called ________ _____. __________________ ris ...
... Essential Question: What causes volcanoes and how do they affect Earth’s surface? As tectonic plates move due to _____________ ___________ in Earth’s _________, __________ builds up along the lithosphere’s ________________ and weak areas in Earth’s crust called ________ _____. __________________ ris ...
Earthquakes
... Faults usually occur along plate boundaries, where the forces of plate motion compress, pull, or shear the crust too much so the crust smashes ...
... Faults usually occur along plate boundaries, where the forces of plate motion compress, pull, or shear the crust too much so the crust smashes ...
CV - Blake Dyer
... The goal of my research is to better understand how sediments record the Earth-system response to changing boundary conditions. The information stored in the sedimentary rock record offers a broad range of past environmental variability that serves as a powerful baseline to differentiate naturally o ...
... The goal of my research is to better understand how sediments record the Earth-system response to changing boundary conditions. The information stored in the sedimentary rock record offers a broad range of past environmental variability that serves as a powerful baseline to differentiate naturally o ...
Module 6 Revision Guide Part One
... probably erupted from a volcano. If the crystals are larger and easily visible, the magma from which the rock was formed cooled more slowly, probably within the Earth’s crust. Metamorphic rocks are associated with present-day and ancient mountain belts. They are evidence of the high temperatures and ...
... probably erupted from a volcano. If the crystals are larger and easily visible, the magma from which the rock was formed cooled more slowly, probably within the Earth’s crust. Metamorphic rocks are associated with present-day and ancient mountain belts. They are evidence of the high temperatures and ...
Geology and Nonrenewable Minerals
... • Subsidies and tax breaks to mining companies keep mineral prices artificially low • Does this promote economic growth and national security? • Scarce investment capital hinders the development of new supplies of mineral resources ...
... • Subsidies and tax breaks to mining companies keep mineral prices artificially low • Does this promote economic growth and national security? • Scarce investment capital hinders the development of new supplies of mineral resources ...
13. Earth Structure, Rocks, Minerals and the Rock Cycle
... Stages in the Rock Cycle All rock types physically and chemically decomposed by a variety of surface processes collectively known as weathering The debris thus created often transported by erosional processes via streams, glaciers, wind, and gravity When this debris is deposited as permanent ...
... Stages in the Rock Cycle All rock types physically and chemically decomposed by a variety of surface processes collectively known as weathering The debris thus created often transported by erosional processes via streams, glaciers, wind, and gravity When this debris is deposited as permanent ...
Chapter 13: Natural Resources
... Where does the lead used in batteries and weights come from? Galena What is a mineral used to make abrasives? quartz ...
... Where does the lead used in batteries and weights come from? Galena What is a mineral used to make abrasives? quartz ...
CHAPTER 12 VOLCANOES
... CHAPTER 12 VOLCANOES SECTION 1 VOLCANOES AND EARTH’S PLATES KILAUEA IS WORLD’S MOST ACTIVE VOLCANO ICELAND IS FAMOUS FOR ACTIVE VOLCANOES. EFFECTS OF ERRUPTIONS AFFECT LIVES AND PROPERTY ASH CAN BLOCK ROADS, COLLAPSE BUILDINGS AND CAUSE LUNG DISEASE SOME VOLCANIC DEBRIS CAN MAKE A PYROCLAS ...
... CHAPTER 12 VOLCANOES SECTION 1 VOLCANOES AND EARTH’S PLATES KILAUEA IS WORLD’S MOST ACTIVE VOLCANO ICELAND IS FAMOUS FOR ACTIVE VOLCANOES. EFFECTS OF ERRUPTIONS AFFECT LIVES AND PROPERTY ASH CAN BLOCK ROADS, COLLAPSE BUILDINGS AND CAUSE LUNG DISEASE SOME VOLCANIC DEBRIS CAN MAKE A PYROCLAS ...
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.