Earth`s History Test Review
... 28. A rock formed with 1,000 atoms of a radioactive parent element, but only contains 250 radioactive parent atoms today. If the half-life is 1,000,000 years, how old is the rock? ...
... 28. A rock formed with 1,000 atoms of a radioactive parent element, but only contains 250 radioactive parent atoms today. If the half-life is 1,000,000 years, how old is the rock? ...
Layers of the Earth
... crust under oceans, and ___________________________ crust is the crust under the continents The crust can range from ____________ thick (oceanic) to _____________ thick (continental) Plate Tectonics _________________________________________ is where we find the plates. The crust is attached to the p ...
... crust under oceans, and ___________________________ crust is the crust under the continents The crust can range from ____________ thick (oceanic) to _____________ thick (continental) Plate Tectonics _________________________________________ is where we find the plates. The crust is attached to the p ...
What is the Earth made of?
... Plates and plate boundaries The earth's crust is broken up into pieces. These pieces are called plates. Heat rising and falling inside the mantle creates convection currents. The convection currents move the plates. The movement of the plates, and the activity inside the earth, is called plate tect ...
... Plates and plate boundaries The earth's crust is broken up into pieces. These pieces are called plates. Heat rising and falling inside the mantle creates convection currents. The convection currents move the plates. The movement of the plates, and the activity inside the earth, is called plate tect ...
Plate Tectonics
... Currently, scientists believe that plates move because of convection currents that occur deep within the Earth. Like a pot of boiling water bubbling on a stove, magma warms, becomes less dense, and upwells, and is in turn replaced by cooler, more dense, sinking material. This movement, called a conv ...
... Currently, scientists believe that plates move because of convection currents that occur deep within the Earth. Like a pot of boiling water bubbling on a stove, magma warms, becomes less dense, and upwells, and is in turn replaced by cooler, more dense, sinking material. This movement, called a conv ...
Mantle
... each other. The result of these interactions is the existence of 3 types of boundaries: (a) Divergent: plates move away from each other, examples: * Divergent oceanic crust: the Mid-Atlantic Ridge * Divergent continental crust: the Rift Valley of East Africa (b) Convergent: plates move toward each o ...
... each other. The result of these interactions is the existence of 3 types of boundaries: (a) Divergent: plates move away from each other, examples: * Divergent oceanic crust: the Mid-Atlantic Ridge * Divergent continental crust: the Rift Valley of East Africa (b) Convergent: plates move toward each o ...
ppt
... 3 – 5 miles thick in the oceans (Oceanic Crust) 5 – 25 miles thick in the continents (Continental Crust) -The crust of the Earth is broken into many pieces called plates. -The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called the Lithosphere. ...
... 3 – 5 miles thick in the oceans (Oceanic Crust) 5 – 25 miles thick in the continents (Continental Crust) -The crust of the Earth is broken into many pieces called plates. -The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called the Lithosphere. ...
18.3 - Faculty Perry, Oklahoma
... divergent boundary occurs where tectonic plates move apart convergent boundary occurs where tectonic plates push together transform boundary occurs where tectonic plates scrape past each other rift valley a gap formed between two diverging plates magnetic reversal when Earth’s magnetic north and sou ...
... divergent boundary occurs where tectonic plates move apart convergent boundary occurs where tectonic plates push together transform boundary occurs where tectonic plates scrape past each other rift valley a gap formed between two diverging plates magnetic reversal when Earth’s magnetic north and sou ...
Earth Science Exam Review 6
... Which of these is a tectonic event that is most likely to contribute to the formation of a sedimentary basin? A erosion of material from around the hardened neck of an ancient volcano B exposure of clastic rocks to intense levels of heat and pressure C divergence of two crustal plates forming a lo ...
... Which of these is a tectonic event that is most likely to contribute to the formation of a sedimentary basin? A erosion of material from around the hardened neck of an ancient volcano B exposure of clastic rocks to intense levels of heat and pressure C divergence of two crustal plates forming a lo ...
lecture 01s - Kean University
... Cooler, denser slabs of oceanic lithosphere descend into the mantle Seven or so smaller ones. Plates are in motion and change in shape and size Largest plate is the Pacific plate ...
... Cooler, denser slabs of oceanic lithosphere descend into the mantle Seven or so smaller ones. Plates are in motion and change in shape and size Largest plate is the Pacific plate ...
Changes to Earth`s Surface Vocabulary Builder
... 15. fault - a break in Earth’s crust where rocks can slide past each other 16. earthquake - the snap and slide of rocks as energy is released in Earth’s crust 17. focus - the point inside Earth where and earthquake begins 18. epicenter - the point on Earth’s surface directly above the focus of an ea ...
... 15. fault - a break in Earth’s crust where rocks can slide past each other 16. earthquake - the snap and slide of rocks as energy is released in Earth’s crust 17. focus - the point inside Earth where and earthquake begins 18. epicenter - the point on Earth’s surface directly above the focus of an ea ...
Plate Tectonics ppt
... major ocean. Plate interactions in the region provide scientists an opportunity to study first hand how the Atlantic may have begun to form about 200 million years ago. Geologists believe that, if spreading continues, the three plates that meet at the edge of the present-day African continent will s ...
... major ocean. Plate interactions in the region provide scientists an opportunity to study first hand how the Atlantic may have begun to form about 200 million years ago. Geologists believe that, if spreading continues, the three plates that meet at the edge of the present-day African continent will s ...
Inside the Earth
... is like a jigsaw puzzle, and the tectonic plates are the pieces. B. A Tectonic Plate Close-up Many tectonic plates not only consist of the upper part of the mantle but also consist of both oceanic crust and continental crust. C. Like Ice Cubes in a Bowl of Punch Tectonic plates “float” on the asthen ...
... is like a jigsaw puzzle, and the tectonic plates are the pieces. B. A Tectonic Plate Close-up Many tectonic plates not only consist of the upper part of the mantle but also consist of both oceanic crust and continental crust. C. Like Ice Cubes in a Bowl of Punch Tectonic plates “float” on the asthen ...
DATASHEETforHANDOUTB
... 4. What is the process called that creates new ocean floor from diverging plates? ...
... 4. What is the process called that creates new ocean floor from diverging plates? ...
Chapter 3 HW (due 8 Feb for Section 5803, 9 Feb for Section 5804)
... b) The Marianas Trench. c) The Red Sea. d) The San Andreas Fault. e) The Sierra Nevada Mountains. 19. If two oceanic plates collide and one is much older and cooler (therefore denser) than the other, which will probably happen? a) A trench will form. b) Continental mountains will form. c) Large eart ...
... b) The Marianas Trench. c) The Red Sea. d) The San Andreas Fault. e) The Sierra Nevada Mountains. 19. If two oceanic plates collide and one is much older and cooler (therefore denser) than the other, which will probably happen? a) A trench will form. b) Continental mountains will form. c) Large eart ...
Inside Earth: Chapter 1
... • Includes soil, rock, mountains, and water • Thinner than mantle & core areas • Thinnest beneath the ocean; thickest under high mountains. Ranges from 5-40 km thick. • Oceanic crust consists of dense rock like basalt • Continental crust consists of less dense rock like granite. • At some convergent ...
... • Includes soil, rock, mountains, and water • Thinner than mantle & core areas • Thinnest beneath the ocean; thickest under high mountains. Ranges from 5-40 km thick. • Oceanic crust consists of dense rock like basalt • Continental crust consists of less dense rock like granite. • At some convergent ...
Lesson 3.3 - Earth`s Spheres
... well as the softer asthenosphere. As this layer moves, it drags large sections of lithosphere, called tectonic plates, across Earth’s surface. Earth’s center is called the core and is made up of molten and solid metals. ...
... well as the softer asthenosphere. As this layer moves, it drags large sections of lithosphere, called tectonic plates, across Earth’s surface. Earth’s center is called the core and is made up of molten and solid metals. ...
Class Starter
... had once been joined in a huge supercontinent called Pangea. Pangea started to splitting apart about 200 million years ago. What scientist came up with the pangea theory? Alfred Wagner ...
... had once been joined in a huge supercontinent called Pangea. Pangea started to splitting apart about 200 million years ago. What scientist came up with the pangea theory? Alfred Wagner ...
Plate Tectonics - Noadswood Science
... bridges that joined them. The land bridges must have been flooded over time. ...
... bridges that joined them. The land bridges must have been flooded over time. ...
Plate Tectonic Theory
... – Oceanic – continental convent boundary – Oceanic-oceanic convergent boundary – Continental-continental convergent boundary ...
... – Oceanic – continental convent boundary – Oceanic-oceanic convergent boundary – Continental-continental convergent boundary ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.