ppt - Discover Earth Science
... • S-waves can’t travel through liquids, and P-waves move fastest through solids. • **The change in velocity of the P-Waves and ceasing of the S-waves is evidence that the outer core is liquid!!!** • After passing through the outer core, the P-waves increase in velocity as they pass through the solid ...
... • S-waves can’t travel through liquids, and P-waves move fastest through solids. • **The change in velocity of the P-Waves and ceasing of the S-waves is evidence that the outer core is liquid!!!** • After passing through the outer core, the P-waves increase in velocity as they pass through the solid ...
Inside the Earth
... By 1929, Alfred Wegener’s ideas were all but dismissed. But, Arthur Holmes elaborated on one of Wegener’s hypotheses: thermal convection and the earth’s mantle. Thermal convection states that, as a substance is heated, its density decreases and it rises. Once it cools, its density increases and it f ...
... By 1929, Alfred Wegener’s ideas were all but dismissed. But, Arthur Holmes elaborated on one of Wegener’s hypotheses: thermal convection and the earth’s mantle. Thermal convection states that, as a substance is heated, its density decreases and it rises. Once it cools, its density increases and it f ...
Plate Tectonics
... Plate Tectonics and Earth's Structure 1. Plate tectonics accounts for important features of Earth's surface and major geologic events. As a basis for understanding this concept: a. Students know evidence of plate tectonics is derived from the fit of the continents; the location of earthquakes, volca ...
... Plate Tectonics and Earth's Structure 1. Plate tectonics accounts for important features of Earth's surface and major geologic events. As a basis for understanding this concept: a. Students know evidence of plate tectonics is derived from the fit of the continents; the location of earthquakes, volca ...
The Plate Tectonics Theory Earth`s Tectonic Plates Tectonic Plates
... the continents moved. Remember that continents move apart or come together at speeds of only a few centimeters per year. This is about the length of a small paper clip. Today, scientists can measure how fast continents move. A network of satellites orbiting Earth is used to monitor plate motion. By ...
... the continents moved. Remember that continents move apart or come together at speeds of only a few centimeters per year. This is about the length of a small paper clip. Today, scientists can measure how fast continents move. A network of satellites orbiting Earth is used to monitor plate motion. By ...
BCS311 Module 3
... The earth's crust consists largely of igneous rocks derived from magma beneath the crust. As magma rises through the crust it cools and mineral crystals grow through the process of crystallization. Felsic igneous rocks consist largely of minerals composed of silicon (Si) and oxygen (O) atoms, combin ...
... The earth's crust consists largely of igneous rocks derived from magma beneath the crust. As magma rises through the crust it cools and mineral crystals grow through the process of crystallization. Felsic igneous rocks consist largely of minerals composed of silicon (Si) and oxygen (O) atoms, combin ...
Rocks Sunshine State STANDARDS SC.D.1.3.1: The student knows
... rock. One layer gets buried by another, and then another. The overlying layers apply pressure to, or press down on, the sediments underneath. Small particles of sediment, such as silt and clay, may be formed into rock by pressure alone. In other sedimentary rocks the particles are held together by m ...
... rock. One layer gets buried by another, and then another. The overlying layers apply pressure to, or press down on, the sediments underneath. Small particles of sediment, such as silt and clay, may be formed into rock by pressure alone. In other sedimentary rocks the particles are held together by m ...
Chapter 6 Section 2
... Tectonic plate boundaries are located by studying the locations of earthquakes, volcanoes, and landforms such as mid-ocean ridges and ocean trenches. ...
... Tectonic plate boundaries are located by studying the locations of earthquakes, volcanoes, and landforms such as mid-ocean ridges and ocean trenches. ...
Plate Tectonics platetectonicsse
... *Complete activities A,B,C,D and answer the questions, then do the online 5 question quiz. ...
... *Complete activities A,B,C,D and answer the questions, then do the online 5 question quiz. ...
Sedimentary Rock Identification
... All rocks can be subjected to metamorphic processes, so a wide variety of metamorphic rocks exist. Metamorphic rocks form when a pre-existing rock is subjected to intense heat and pressure to chemically and/or physically alter the rock into a new rock type (e.g., limestone being metamorphosed into m ...
... All rocks can be subjected to metamorphic processes, so a wide variety of metamorphic rocks exist. Metamorphic rocks form when a pre-existing rock is subjected to intense heat and pressure to chemically and/or physically alter the rock into a new rock type (e.g., limestone being metamorphosed into m ...
Tectonic Processes
... the planet. Lithospheric responses to these movements, and subsequent forces both at the plate boundaries and within the plates, lead to different features that evolve at different rates. The understanding of the tectonic framework, based on the descriptive approach, opens new perspectives in terms ...
... the planet. Lithospheric responses to these movements, and subsequent forces both at the plate boundaries and within the plates, lead to different features that evolve at different rates. The understanding of the tectonic framework, based on the descriptive approach, opens new perspectives in terms ...
Partial melting - simple process, huge global
... melting point materials that melt first. • Separation can occur in partial melts, with the high melting point materials sinking to the bottom and the liquid from the lower melting point materials flowing to the top. These two different materials, that have different chemical compositions and differe ...
... melting point materials that melt first. • Separation can occur in partial melts, with the high melting point materials sinking to the bottom and the liquid from the lower melting point materials flowing to the top. These two different materials, that have different chemical compositions and differe ...
Blakeley Jones GEOL 1104 Review 6 – Earth`s Interior and Plate
... 13) Which of the following best characterizes how the diameter of Earth's core and the nature of the outer core were discovered? A. Crystalline iron was found in lavas erupted from the deepest known hot spots. B. By analysis of the P-wave and S-wave shadow zones. C. Because P-wave speeds are higher ...
... 13) Which of the following best characterizes how the diameter of Earth's core and the nature of the outer core were discovered? A. Crystalline iron was found in lavas erupted from the deepest known hot spots. B. By analysis of the P-wave and S-wave shadow zones. C. Because P-wave speeds are higher ...
Geology of National Parks
... volcanic eruptions is controlled by the chemistry and properties of the magma. Earthquakes are the result of abrupt movements of the Earth. They generate energy in the form of body and surface waves. E3.4A Use the distribution of earthquakes and volcanoes to locate and determine the types of plate b ...
... volcanic eruptions is controlled by the chemistry and properties of the magma. Earthquakes are the result of abrupt movements of the Earth. They generate energy in the form of body and surface waves. E3.4A Use the distribution of earthquakes and volcanoes to locate and determine the types of plate b ...
GEO143_final_key
... A) inner core, crust, mantle, hydrosphere B) core, crust, mantle, hydrosphere C) core, inner mantle, outer mantle, crust D) inner core, outer core, mantle, crust (24) 1 pts. The asthenosphere is a relatively cool and rigid shell that overlies the lithosphere. ...
... A) inner core, crust, mantle, hydrosphere B) core, crust, mantle, hydrosphere C) core, inner mantle, outer mantle, crust D) inner core, outer core, mantle, crust (24) 1 pts. The asthenosphere is a relatively cool and rigid shell that overlies the lithosphere. ...
Plate Tectonics
... • The idea of seafloor spreading showed that more than just continents were moving, as Wegener had thought. • It was now clear to scientists that sections of the seafloor and continents move in relation to one another. ...
... • The idea of seafloor spreading showed that more than just continents were moving, as Wegener had thought. • It was now clear to scientists that sections of the seafloor and continents move in relation to one another. ...
Common Rock Types of New Mexico and the World Rock Sample
... Earth’s surface and solidifies rapidly, before many minerals are able to nucleate and crystallize (some obsidian contains a few crystals that formed in the magma before it was erupted). Do all examples of obsidian look the same? If not, how do they differ? Obsidian is most commonly black or smoky, a ...
... Earth’s surface and solidifies rapidly, before many minerals are able to nucleate and crystallize (some obsidian contains a few crystals that formed in the magma before it was erupted). Do all examples of obsidian look the same? If not, how do they differ? Obsidian is most commonly black or smoky, a ...
EGU2017-10149 - CO Meeting Organizer
... attempt to elucidate the Neoproterozoic magmatic evolution of this belt. In general, zircon U-Pb ages of the studied granitic rocks are between 804 and 724Ma, with a weighted mean of ca. 770 Ma, thus confirming Neoproterozoic magmatism. All samples plot into the peraluminous domain, indicating a maj ...
... attempt to elucidate the Neoproterozoic magmatic evolution of this belt. In general, zircon U-Pb ages of the studied granitic rocks are between 804 and 724Ma, with a weighted mean of ca. 770 Ma, thus confirming Neoproterozoic magmatism. All samples plot into the peraluminous domain, indicating a maj ...
Sample Unit of Study - New York Science Teacher
... fresh waters, Ocean currents and waves, and Gravity induced directed flows. A. Describe the particle sizes and styles of transport typical of the major agents. B. Use the Stream Velocity table in the Earth Science Reference Tables (ESRT) to determine stream speeds from transported particle size. C. ...
... fresh waters, Ocean currents and waves, and Gravity induced directed flows. A. Describe the particle sizes and styles of transport typical of the major agents. B. Use the Stream Velocity table in the Earth Science Reference Tables (ESRT) to determine stream speeds from transported particle size. C. ...
Unit 5: Ocean Floor Structure and Plate Tectonics
... The face of the Earth is always changing and throughout geologic history oceans have been created and destroyed. Modern geologic evidence indicates that the ocean bottom is moving at a rate from about one-half to six inches a year through a process called plate tectonics. Roughly 200 million years a ...
... The face of the Earth is always changing and throughout geologic history oceans have been created and destroyed. Modern geologic evidence indicates that the ocean bottom is moving at a rate from about one-half to six inches a year through a process called plate tectonics. Roughly 200 million years a ...
Mountain Formation and Distribution
... When two sections of the Earth's crust collide, one slab of lithosphere can be forced back down into the deeper regions of the Earth, as shown in this picture. The slab that is forced back into the Earth usually becomes melted when the edges reach a depth which is hot enough. This process is called ...
... When two sections of the Earth's crust collide, one slab of lithosphere can be forced back down into the deeper regions of the Earth, as shown in this picture. The slab that is forced back into the Earth usually becomes melted when the edges reach a depth which is hot enough. This process is called ...
Happy Valentine`s Day!
... K migrate into the melt, while Mg and Fe stay put. The magma rises, preferentially separating out these elements. Additionally, minerals with lots of Mg and little Si crystallize out first, the second step in the mantle’s Mg loss prevention program ...
... K migrate into the melt, while Mg and Fe stay put. The magma rises, preferentially separating out these elements. Additionally, minerals with lots of Mg and little Si crystallize out first, the second step in the mantle’s Mg loss prevention program ...
Volcanoes and Igneous Activity Earth - Chapter 4
... Sedimentary Rocks Features of sedimentary rocks Strata, or beds (most characteristic) Bedding planes separate strata Fossils Traces or remains of prehistoric life Are the most important inclusions Help determine past environments Used as time indicators Used for matching rocks fro ...
... Sedimentary Rocks Features of sedimentary rocks Strata, or beds (most characteristic) Bedding planes separate strata Fossils Traces or remains of prehistoric life Are the most important inclusions Help determine past environments Used as time indicators Used for matching rocks fro ...
Age of the Earth
The age of the Earth is 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age is based on evidence from radiometric age dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.Following the development of radiometric age dating in the early 20th century, measurements of lead in uranium-rich minerals showed that some were in excess of a billion years old.The oldest such minerals analyzed to date—small crystals of zircon from the Jack Hills of Western Australia—are at least 4.404 billion years old. Comparing the mass and luminosity of the Sun to those of other stars, it appears that the Solar System cannot be much older than those rocks. Calcium-aluminium-rich inclusions – the oldest known solid constituents within meteorites that are formed within the Solar System – are 4.567 billion years old, giving an age for the solar system and an upper limit for the age of Earth.It is hypothesised that the accretion of Earth began soon after the formation of the calcium-aluminium-rich inclusions and the meteorites. Because the exact amount of time this accretion process took is not yet known, and the predictions from different accretion models range from a few millions up to about 100 million years, the exact age of Earth is difficult to determine. It is also difficult to determine the exact age of the oldest rocks on Earth, exposed at the surface, as they are aggregates of minerals of possibly different ages.