File - Brighten Academy Middle School
... How are the ages of fossils found in bottom layers of sedimentary rock in the Grand Canyon compared to fossils found near the surface layers of sedimentary ...
... How are the ages of fossils found in bottom layers of sedimentary rock in the Grand Canyon compared to fossils found near the surface layers of sedimentary ...
On Earth, impact craters are generally erased by other geologic
... • The broken material is moved by a group of processes called erosion. • The material may form dunes, new layers of rock, or other features. ...
... • The broken material is moved by a group of processes called erosion. • The material may form dunes, new layers of rock, or other features. ...
what drives plate tectonics? slab pull, ridge push
... part of the plate (Osmaston 2000 IGC Rio). This model not only generates much more (but still being quantified) ridge push, as required, but has turned out to be very successful in relation to MOR structures. The heat content takes the form of a superadiabatic gradient in the now-stiff LVZ, and is p ...
... part of the plate (Osmaston 2000 IGC Rio). This model not only generates much more (but still being quantified) ridge push, as required, but has turned out to be very successful in relation to MOR structures. The heat content takes the form of a superadiabatic gradient in the now-stiff LVZ, and is p ...
Powerpoint presentation for Lecture 3 - e
... magnetic moment when they are cooled below the Curie Temperature ...
... magnetic moment when they are cooled below the Curie Temperature ...
Introduction
... – Mantle: silica and iron composition – Core: iron and nickel composition The crust and mantle are further divided into “spheres” depending on density and physical state (e.g. solid or molten). ...
... – Mantle: silica and iron composition – Core: iron and nickel composition The crust and mantle are further divided into “spheres” depending on density and physical state (e.g. solid or molten). ...
Document
... a. uplift. c. faulting. b. folding. d. subsidence. _____ 9. The type of fault in which the hanging wall moves up relative to the footwall is called a a. strike-slip fault. c. normal fault. b. fault-block fault. d. reverse fault. _____ 10. The type of mountain that forms when rock layers are squeezed ...
... a. uplift. c. faulting. b. folding. d. subsidence. _____ 9. The type of fault in which the hanging wall moves up relative to the footwall is called a a. strike-slip fault. c. normal fault. b. fault-block fault. d. reverse fault. _____ 10. The type of mountain that forms when rock layers are squeezed ...
Lecture #10 -- Magma types and types of eruptions (text pages 151
... high iron content. They have low viscosity because they are hot (>1000°C) and have low silica content and have low volatile (H2O) contents. Therefore they erupt passively as lava flows, forming spatter cones and flows, shield volcanoes (like in Hawaii -- see figure below) and large lava plateaus (li ...
... high iron content. They have low viscosity because they are hot (>1000°C) and have low silica content and have low volatile (H2O) contents. Therefore they erupt passively as lava flows, forming spatter cones and flows, shield volcanoes (like in Hawaii -- see figure below) and large lava plateaus (li ...
Pre-Test
... found in the lava are similar to those found in ancient asteroids. This fact leads scientists to infer that the lava may be as old as our solar system and that it comes from deep inside the mantle near Earth’s outer core. Nyiragongo is one volcano in a ring of many volcanoes surrounding an area that ...
... found in the lava are similar to those found in ancient asteroids. This fact leads scientists to infer that the lava may be as old as our solar system and that it comes from deep inside the mantle near Earth’s outer core. Nyiragongo is one volcano in a ring of many volcanoes surrounding an area that ...
Layers of the Earth
... The crust can range from ____________ thick (oceanic) to _____________ thick (continental) Plate Tectonics _________________________________________ is where we find the plates. The crust is attached to the plates ...
... The crust can range from ____________ thick (oceanic) to _____________ thick (continental) Plate Tectonics _________________________________________ is where we find the plates. The crust is attached to the plates ...
Handout 1 (2-3) pink Chapter 10 Section 2 Directed Reading Pages
... 11. A narrow area that forms where the plates at a divergent boundary separate is called a _______________. 12. When oceanic lithosphere collides with continental lithosphere, the oceanic lithosphere is more dense than the continental lithosphere, so it sinks, or ____________________________________ ...
... 11. A narrow area that forms where the plates at a divergent boundary separate is called a _______________. 12. When oceanic lithosphere collides with continental lithosphere, the oceanic lithosphere is more dense than the continental lithosphere, so it sinks, or ____________________________________ ...
Structure of the Earth
... The Lower Mantle is made of solid rock, but very high pressure inside the Earth makes it act like a liquid. The Mantle goes from 65- 2890 km below ground ...
... The Lower Mantle is made of solid rock, but very high pressure inside the Earth makes it act like a liquid. The Mantle goes from 65- 2890 km below ground ...
Grand Challenges for Seismology
... eruptions, including improved imaging of the interior of volcanic systems and quantitative characterization of magma migration and eruption processes. What is the lithosphere-asthenosphere boundary? The lithosphere is Earth’s mechanically strong outer shell that makes up the tectonic plates, underl ...
... eruptions, including improved imaging of the interior of volcanic systems and quantitative characterization of magma migration and eruption processes. What is the lithosphere-asthenosphere boundary? The lithosphere is Earth’s mechanically strong outer shell that makes up the tectonic plates, underl ...
Unit 7 Earth`s Interior
... The Four Layers The Earth is composed of four different layers. The crust is the layer that you live on, or is under the ocean. The mantle is much hotter and has the ability to flow (like hot pudding). The outer core and inner core are even hotter with pressures so great you would be squeezed into ...
... The Four Layers The Earth is composed of four different layers. The crust is the layer that you live on, or is under the ocean. The mantle is much hotter and has the ability to flow (like hot pudding). The outer core and inner core are even hotter with pressures so great you would be squeezed into ...
REVIEW Use the following terms to answer the
... 2. a large section of Earth’s oceanic or continental crust and rigid upper mantle that moves around on the asthenosphere 3. theory that Earth’s crust and upper mantle are broken into plates that float and move around on a plastic like layer of the mantle. 4. to convert or change 5. to move apart 6. ...
... 2. a large section of Earth’s oceanic or continental crust and rigid upper mantle that moves around on the asthenosphere 3. theory that Earth’s crust and upper mantle are broken into plates that float and move around on a plastic like layer of the mantle. 4. to convert or change 5. to move apart 6. ...
Lecture 6: Igneous Rocks (Melting and Differentiation) Oct. 4, 2006
... Tectonic settings of magma production 1. ridges adiabatic decompression melting of peridotite > basalt (why will become clearer later) images of melt at ridge produced is basalt, gabbros at greater depth 2. subduction zones water introduced into mantle above subduction zones melting and production o ...
... Tectonic settings of magma production 1. ridges adiabatic decompression melting of peridotite > basalt (why will become clearer later) images of melt at ridge produced is basalt, gabbros at greater depth 2. subduction zones water introduced into mantle above subduction zones melting and production o ...
Geosphere!
... A system is a collection of interdependent parts within a defined area. The Earth is described as a system since it also has connecting ‘parts’ that make ...
... A system is a collection of interdependent parts within a defined area. The Earth is described as a system since it also has connecting ‘parts’ that make ...
PDF file of Lecture 4a - Earth`s Interior and Tectonics
... Lithosphere moves over asthenosphere Subduction recycles lithosphere into Earth’s interior Seafloor spreading adds new material to plate margins (makes new lithosphere) ...
... Lithosphere moves over asthenosphere Subduction recycles lithosphere into Earth’s interior Seafloor spreading adds new material to plate margins (makes new lithosphere) ...
raging planet - Classroom@Sea
... plates that move relative to each other. The discovery of these plates lead to the theory of plate tectonics, which was formulated during the early 1960s. Scientists have successfully used Scientists use plate tectonics to explain many geological events such as earthquakes and volcanic eruptions as ...
... plates that move relative to each other. The discovery of these plates lead to the theory of plate tectonics, which was formulated during the early 1960s. Scientists have successfully used Scientists use plate tectonics to explain many geological events such as earthquakes and volcanic eruptions as ...
ch07 (1) - earthjay science
... 18. Exotic terrains will have rock types and fossil contents that are significantly different from directly adjacent areas. In the Appalachians, a terrain which showed southern ocean faunas would be a likely alien terrain. A micro-continent-derived terrain would consist of continental rock, probably ...
... 18. Exotic terrains will have rock types and fossil contents that are significantly different from directly adjacent areas. In the Appalachians, a terrain which showed southern ocean faunas would be a likely alien terrain. A micro-continent-derived terrain would consist of continental rock, probably ...
Oceanic Crust
... What are tectonic plates made of? • Plates are made of rigid lithosphere. The lithosphere is made up of the crust and the upper part of the mantle. ...
... What are tectonic plates made of? • Plates are made of rigid lithosphere. The lithosphere is made up of the crust and the upper part of the mantle. ...
Mantle plume
A mantle plume is a mechanism proposed in 1971 to explain volcanic regions of the earth that were not thought to be explicable by the then-new theory of plate tectonics. Some such volcanic regions lie far from tectonic plate boundaries, for example, Hawaii. Others represent unusually large-volume volcanism, whether on plate boundaries, e.g. Iceland, or basalt floods such as the Deccan or Siberian traps.A mantle plume is posited to exist where hot rock nucleates at the core-mantle boundary and rises through the Earth's mantle becoming a diapir in the Earth's crust. The currently active volcanic centers are known as ""hot spots"". In particular, the concept that mantle plumes are fixed relative to one another, and anchored at the core-mantle boundary, was thought to provide a natural explanation for the time-progressive chains of older volcanoes seen extending out from some such hot spots, such as the Hawaiian–Emperor seamount chain.The hypothesis of mantle plumes from depth is not universally accepted as explaining all such volcanism. It has required progressive hypothesis-elaboration leading to variant propositions such as mini-plumes and pulsing plumes. Another hypothesis for unusual volcanic regions is the ""Plate model"". This proposes shallower, passive leakage of magma from the mantle onto the Earth's surface where extension of the lithosphere permits it, attributing most volcanism to plate tectonic processes, with volcanoes far from plate boundaries resulting from intraplate extension.