Chapter 10: Plate Tectonics
... a. Lithosphere: solid, outer layer of Earth that consists of the crust & the rigid upper part of the mantle; 15 to 300 km thick b. Asthenosphere: solid, plastic layer of the mantle beneath the lithosphere; made of mantle rock that flows very slowly, which allows tectonic plates to move on top of it; ...
... a. Lithosphere: solid, outer layer of Earth that consists of the crust & the rigid upper part of the mantle; 15 to 300 km thick b. Asthenosphere: solid, plastic layer of the mantle beneath the lithosphere; made of mantle rock that flows very slowly, which allows tectonic plates to move on top of it; ...
What "Seis" Shake?
... Shear waves travel a little slower through the crust and mantle towards their destination. Since these waves reach the surface later than P waves, they are secondary or S waves. S waves push earth material out of their way at right angles to their line of travel as they travel to the surface. These ...
... Shear waves travel a little slower through the crust and mantle towards their destination. Since these waves reach the surface later than P waves, they are secondary or S waves. S waves push earth material out of their way at right angles to their line of travel as they travel to the surface. These ...
Continents Adrift and Sea-Floors Spreading: The Revolution of Plate
... This new answer is based on plate tectonics, a beautiful and elegant theory that unifies centuries of divergent observations into a complete, understandable, working theory of the Earth. Mountains form not via contraction, but when continents collide. Earthquakes are not a mysterious force of nature ...
... This new answer is based on plate tectonics, a beautiful and elegant theory that unifies centuries of divergent observations into a complete, understandable, working theory of the Earth. Mountains form not via contraction, but when continents collide. Earthquakes are not a mysterious force of nature ...
Plate Tectonic Theory
... Proposed that hot, less dense mantle material rises toward the mid-ocean ridges ...
... Proposed that hot, less dense mantle material rises toward the mid-ocean ridges ...
Semester 01 Syllabus/Study Guide Accelerated Earth Science
... Dichotomous Ore Paleontology and Geologic Time Students should be able to: 1. Identify in what type of rock fossils are most likely to form. 2. Describe several ways scientists determine the relative age of rocks and fossils. 3. Describe Earth’s geologic history. 4. Explain the geologic time scale a ...
... Dichotomous Ore Paleontology and Geologic Time Students should be able to: 1. Identify in what type of rock fossils are most likely to form. 2. Describe several ways scientists determine the relative age of rocks and fossils. 3. Describe Earth’s geologic history. 4. Explain the geologic time scale a ...
Why Did the Dinosaurs Die Out?
... The second most popular theory says that activity on the earth itself caused the (10) _______________________ . As the (11) _______________________ of Pangaea was breaking up, movement of the earth's giant land plates caused volcanoes to erupt and the climate to change. These changes affected the ea ...
... The second most popular theory says that activity on the earth itself caused the (10) _______________________ . As the (11) _______________________ of Pangaea was breaking up, movement of the earth's giant land plates caused volcanoes to erupt and the climate to change. These changes affected the ea ...
chapter8_ARCHEAN
... Magmas flowing were a lot hotter that are today. Komatiites must have cooled from molten rock that was at least 1600°C at the surface of the earth. Today’s highest recorded surface flowis 1350°C ...
... Magmas flowing were a lot hotter that are today. Komatiites must have cooled from molten rock that was at least 1600°C at the surface of the earth. Today’s highest recorded surface flowis 1350°C ...
Amherst County Public Schools Earth Science Curriculum Pacing
... a) traces and remains of ancient, often extinct, life are preserved by various means in many sedimentary rocks; b) superposition, cross-cutting relationships, index fossils, and radioactive decay are methods of dating bodies of rock; c) absolute and relative dating have different applications but ca ...
... a) traces and remains of ancient, often extinct, life are preserved by various means in many sedimentary rocks; b) superposition, cross-cutting relationships, index fossils, and radioactive decay are methods of dating bodies of rock; c) absolute and relative dating have different applications but ca ...
Letter to the Author
... helpful in certain specific situations, are not entirely sufficient. What will do the trick is a sliding of the entire crust over the mantle, leading to an apparent wandering of the poles. This sounds at first more wild than continental drift, but it actually has a much more secure foundation. Given ...
... helpful in certain specific situations, are not entirely sufficient. What will do the trick is a sliding of the entire crust over the mantle, leading to an apparent wandering of the poles. This sounds at first more wild than continental drift, but it actually has a much more secure foundation. Given ...
Lecture Notes
... made up from the recycled material-debris from one or more previous stars that long ago ended up their life in supernovae explosions. THE COMPOSITION OF THE EARTH The planets that are made of very rare material. According to Condensation Theory they are accreted from the Solar Nebula (FIG. 1.3). The ...
... made up from the recycled material-debris from one or more previous stars that long ago ended up their life in supernovae explosions. THE COMPOSITION OF THE EARTH The planets that are made of very rare material. According to Condensation Theory they are accreted from the Solar Nebula (FIG. 1.3). The ...
9-5 The Theory of Plate Tectonics
... Convergent Boundary Two plates coming together One usually pushes out on top Produces Mountain ranges and trenches depending on the plate type. ...
... Convergent Boundary Two plates coming together One usually pushes out on top Produces Mountain ranges and trenches depending on the plate type. ...
Earth`s Plates, Part 2: Movement
... Many geologic processes can be reviewed or expanded upon using variations of this activity. When plates move together, mountains are created. If the graham cracker breaks, the students have created an earthquake. As magma (cake icing) moves above the graham crackers, students have created a volcano. ...
... Many geologic processes can be reviewed or expanded upon using variations of this activity. When plates move together, mountains are created. If the graham cracker breaks, the students have created an earthquake. As magma (cake icing) moves above the graham crackers, students have created a volcano. ...
Geology of the Hawaiian Islands
... Xenoliths (foreign rocks) Some Hawaiian ultramafic xenoliths have a mineral called garnet Garnets form at very high P and T What do they tell us? The xenolith may have come from >50 km deep in the mantle ...
... Xenoliths (foreign rocks) Some Hawaiian ultramafic xenoliths have a mineral called garnet Garnets form at very high P and T What do they tell us? The xenolith may have come from >50 km deep in the mantle ...
pdf for preview - sciencepowerpoint.com
... ◊ How can puzzle pieces be connected to your knowledge of the theory of continental drift and plate tectonics? ◊ Make sure to draw or describe some evidence of continental drift. ...
... ◊ How can puzzle pieces be connected to your knowledge of the theory of continental drift and plate tectonics? ◊ Make sure to draw or describe some evidence of continental drift. ...
Plate Tectonics: An Unstable Earth
... • Changes due to loss of heat on a cooling Earth -‐ Earth is shrinking due to contrac=on and wrinkling • Discovery of radioac=vity in 1895 started to change this theory in respect to Earth’s age ...
... • Changes due to loss of heat on a cooling Earth -‐ Earth is shrinking due to contrac=on and wrinkling • Discovery of radioac=vity in 1895 started to change this theory in respect to Earth’s age ...
Isostatic Rebound-Actvity writeup.pages
... 6. Place toothpicks with small pieces of s1cky tack at the top on the far edges of the container. Push into at least 2 layers of the flubber. -‐-‐-‐ Inquiry Ques-on: What do you think will ...
... 6. Place toothpicks with small pieces of s1cky tack at the top on the far edges of the container. Push into at least 2 layers of the flubber. -‐-‐-‐ Inquiry Ques-on: What do you think will ...
The Theory of Plate Tectonics
... Collision 1: two plates of oceanic crust collide, and the more dense plate sinks underneath. Collision 2: a oceanic plate collides with a continental plate, and subduction occurs. Collision 3: two plates of continental crust collide, but neither sinks. Instead, they push up mountain ranges. ...
... Collision 1: two plates of oceanic crust collide, and the more dense plate sinks underneath. Collision 2: a oceanic plate collides with a continental plate, and subduction occurs. Collision 3: two plates of continental crust collide, but neither sinks. Instead, they push up mountain ranges. ...
Slide 1
... Seismic waves speed up and slow down. Indicates variation in conducting medium. Allowed interpretation of the Earth’s interior. ...
... Seismic waves speed up and slow down. Indicates variation in conducting medium. Allowed interpretation of the Earth’s interior. ...
Earth’s Complex Complexion
... a complete surprise to those who believed such deposits would only be found at faster spreading ridges, where magma rose more actively from the mantle. ...
... a complete surprise to those who believed such deposits would only be found at faster spreading ridges, where magma rose more actively from the mantle. ...
Plate: a rigid slab of solid lithosphere rock that has defined
... means earthquakes are lower in magnitude and less destructive. ...
... means earthquakes are lower in magnitude and less destructive. ...
LG: Identify the steps of the Rock Cycle
... rocks are recycled into other rocks. Moving tectonic plates help to destroy and form many types of rocks. ...
... rocks are recycled into other rocks. Moving tectonic plates help to destroy and form many types of rocks. ...
Rocks
... rocks are recycled into other rocks. Moving tectonic plates help to destroy and form many types of rocks. ...
... rocks are recycled into other rocks. Moving tectonic plates help to destroy and form many types of rocks. ...
Unit 4 Notes
... How old is the seafloor? -The age of the seafloor is also important. -Using rock-dating techniques, geologists can find out the ages of rocks on the ocean floor. -Then, knowing how far the rocks are from the mid-ocean ridge, they can figure out the rate at which the seafloor is spreading. -If the s ...
... How old is the seafloor? -The age of the seafloor is also important. -Using rock-dating techniques, geologists can find out the ages of rocks on the ocean floor. -Then, knowing how far the rocks are from the mid-ocean ridge, they can figure out the rate at which the seafloor is spreading. -If the s ...
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.