Plate Tectonics
... There are two kinds of crust, continental and oceanic. The continental crust makes up continents. The oceanic crust makes up the floor of the ocean. The plates do not follow the edges of the continents. Many plates are made of both continental and oceanic crust. Most of the United States is on the N ...
... There are two kinds of crust, continental and oceanic. The continental crust makes up continents. The oceanic crust makes up the floor of the ocean. The plates do not follow the edges of the continents. Many plates are made of both continental and oceanic crust. Most of the United States is on the N ...
Ophiolite Trail: Introduction
... dips in the surface of the Earth that fill with water and form oceans. The Earth’s crust is divided into several plates that float on top of a thick semi-molten layer called the mantle. Oceanic crust is continually being recycled. New crust forms under the oceans at mid-ocean ridges. Currents in the ...
... dips in the surface of the Earth that fill with water and form oceans. The Earth’s crust is divided into several plates that float on top of a thick semi-molten layer called the mantle. Oceanic crust is continually being recycled. New crust forms under the oceans at mid-ocean ridges. Currents in the ...
Continents on the Move - westerville.k12.oh.us
... In 1910, a young German scientist named Alfred Wegener became curious about why the coasts of several continents matched so well, like the pieces of a jigsaw puzzle. He formed a hypothesis that Earth’s continents had moved! Wegener’s hypothesis was that all the continents had once been joined togeth ...
... In 1910, a young German scientist named Alfred Wegener became curious about why the coasts of several continents matched so well, like the pieces of a jigsaw puzzle. He formed a hypothesis that Earth’s continents had moved! Wegener’s hypothesis was that all the continents had once been joined togeth ...
Introduction to Geology
... – zones where plates move apart, leaving a gap between them – sea-floor spreading occurs where gap fills with molten rock and cools, repeatedly adding more oceanic lithosphere 2. Convergent boundaries – zones where plates move together, causing one to go beneath the other (oceanic crust) OR where pl ...
... – zones where plates move apart, leaving a gap between them – sea-floor spreading occurs where gap fills with molten rock and cools, repeatedly adding more oceanic lithosphere 2. Convergent boundaries – zones where plates move together, causing one to go beneath the other (oceanic crust) OR where pl ...
layer of the atmosphere in which weather occurs and we have direct
... oceanic crust: crust that is made mostly of basaltic rock and is very dense continental crust: crust that is made mostly of granitic rock and is less dense than the other type of crust hot spots: places where molten material rises from the asthenosphere and reaches the lithosphere seafloor spreading ...
... oceanic crust: crust that is made mostly of basaltic rock and is very dense continental crust: crust that is made mostly of granitic rock and is less dense than the other type of crust hot spots: places where molten material rises from the asthenosphere and reaches the lithosphere seafloor spreading ...
Earth Science for Struggling Students Book 1: Inside the Earth
... the lithospheric plates or tectonic plates rest on the lithosphere and these convection currents generate enough movement to cause the plates and continents to move. The last part of the mantle is the lower mantle. This part of the mantle is solid and very hot because it lies next to the core. The c ...
... the lithospheric plates or tectonic plates rest on the lithosphere and these convection currents generate enough movement to cause the plates and continents to move. The last part of the mantle is the lower mantle. This part of the mantle is solid and very hot because it lies next to the core. The c ...
EIPG_11e_Lecture_Ch13
... the seafloor, where it quickly solidifies, forming large tube-shaped protuberances known as pillow basalts ...
... the seafloor, where it quickly solidifies, forming large tube-shaped protuberances known as pillow basalts ...
Powerpoint Presentation Physical Geology, 10/e
... • Seismic wave studies have provided primary evidence for existence and nature of Earth’s core • Specific areas on the opposite side of the Earth from large earthquakes do not receive seismic waves, resulting in seismic shadow zones • P-wave shadow zone (103°-142° from epicenter) explained by refrac ...
... • Seismic wave studies have provided primary evidence for existence and nature of Earth’s core • Specific areas on the opposite side of the Earth from large earthquakes do not receive seismic waves, resulting in seismic shadow zones • P-wave shadow zone (103°-142° from epicenter) explained by refrac ...
Handout 2
... Use the terms from the list below to complete the sentences that follow. Each term may be used only once. Some terms may not be used. ...
... Use the terms from the list below to complete the sentences that follow. Each term may be used only once. Some terms may not be used. ...
The four layers of the Earth
... to the crust) is actually a layer of semi-liquid molten rock called magma. This magma flows slowly underneath the crust like plastic (think of silly putty). • The mantle makes up most of our Earth! ...
... to the crust) is actually a layer of semi-liquid molten rock called magma. This magma flows slowly underneath the crust like plastic (think of silly putty). • The mantle makes up most of our Earth! ...
Worksheets - Keep It Simple Science
... up of a number of separate i)....................... which slide across the j).............................. being pushed by slow-moving k).............................................. which carry heat from the earth’s l)............................ Two adjoining plates must either m).......... ... ...
... up of a number of separate i)....................... which slide across the j).............................. being pushed by slow-moving k).............................................. which carry heat from the earth’s l)............................ Two adjoining plates must either m).......... ... ...
Its report about Plate-Tectonics Report made by: Robbert van
... The outermost part of the earth’s interior is made up of two layers: above is the lithosphere, and below the astenosphere. The lithosphere consist of plates wich move: Plate tectonics. Plate tectonics is a theory of geology that has been developed to explain the observed evidence for a large scale m ...
... The outermost part of the earth’s interior is made up of two layers: above is the lithosphere, and below the astenosphere. The lithosphere consist of plates wich move: Plate tectonics. Plate tectonics is a theory of geology that has been developed to explain the observed evidence for a large scale m ...
How The Earth Works
... 35 minutes to birth of Christ 1 hour+ to pyramids 3 hours to retreat of glaciers from Wisconsin 12 days = 1 million years 2 years to extinction of dinosaurs 14 years to age of Niagara Escarpment 31 years = 1 billion years ...
... 35 minutes to birth of Christ 1 hour+ to pyramids 3 hours to retreat of glaciers from Wisconsin 12 days = 1 million years 2 years to extinction of dinosaurs 14 years to age of Niagara Escarpment 31 years = 1 billion years ...
6-8 Plate Tectonics Activity
... broken down to include the inner core and the outer core. The inner core is 800 miles thick and made up of iron and nickel in a solid state. The outer core is 1400 miles thick and made up of iron, nickel and sulfur in a liquid state. The mantle is 1800 miles thick, made up of magnesium, iron, alumin ...
... broken down to include the inner core and the outer core. The inner core is 800 miles thick and made up of iron and nickel in a solid state. The outer core is 1400 miles thick and made up of iron, nickel and sulfur in a liquid state. The mantle is 1800 miles thick, made up of magnesium, iron, alumin ...
Geology Lab: "Edible Tectonics"
... BACKGROUND INFORMATION (Must be read before performing lab!) Plate Tectonics is Geology’s most important theory – it explains so much about our planet! Most volcanoes and earthquakes occur along the boundaries of tectonic plates. This theory also explains how certain surface features such as mou ...
... BACKGROUND INFORMATION (Must be read before performing lab!) Plate Tectonics is Geology’s most important theory – it explains so much about our planet! Most volcanoes and earthquakes occur along the boundaries of tectonic plates. This theory also explains how certain surface features such as mou ...
- Toolbox Pro
... surface ► At the plate boundaries you’ll find: Earthquakes, volcanoes, trenches, mountains and mid-ocean ridges-Zones of frequent crustal activity!!! Ex: Pacific Ring of Fire ...
... surface ► At the plate boundaries you’ll find: Earthquakes, volcanoes, trenches, mountains and mid-ocean ridges-Zones of frequent crustal activity!!! Ex: Pacific Ring of Fire ...
11 Earth and Atmos
... Suggest why most scientists in 1915 could not accept Wegener’s idea of continental drift. ...
... Suggest why most scientists in 1915 could not accept Wegener’s idea of continental drift. ...
Why is our earth unstable?
... What is the structure of the earth? Our earth can be divided into _______ three layers. From the surface to the centre, they are: ...
... What is the structure of the earth? Our earth can be divided into _______ three layers. From the surface to the centre, they are: ...
Growing or
... presence of low-pressure granulites) while some ancient igneous processes (peridotitelavas. An, anorthosites) suggest a hotter mantle or higher melting zones in the past. In general. Archean geology,as shown by Archean geologic maps, is one of igneous and high-temperature metamorphic events. In the ...
... presence of low-pressure granulites) while some ancient igneous processes (peridotitelavas. An, anorthosites) suggest a hotter mantle or higher melting zones in the past. In general. Archean geology,as shown by Archean geologic maps, is one of igneous and high-temperature metamorphic events. In the ...
Layers of the Earth PPT
... * The core of the Earth is like a ball of very hot metals. * The outer core is liquid. * The outer core is made up of iron and is very dense. ...
... * The core of the Earth is like a ball of very hot metals. * The outer core is liquid. * The outer core is made up of iron and is very dense. ...
Doc Format - Science in Hawaii Project
... 16. Earth’s plates move on the Earth’s crust because of the action of liquid __________ below the surface. The rising and falling movement of this hot material is called a (2 words) ______________ ______________. Sometimes this material breaks through the Earth’s outmost layer, called the __________ ...
... 16. Earth’s plates move on the Earth’s crust because of the action of liquid __________ below the surface. The rising and falling movement of this hot material is called a (2 words) ______________ ______________. Sometimes this material breaks through the Earth’s outmost layer, called the __________ ...
Pudding Plates - IHMC Public Cmaps (3)
... Pudding Plates Objective: Today you will be creating your own models of tectonic plate boundaries. Reread the pre-lab activity from the other day and find the three types of plate boundaries that occur throughout the Earth’s surface. Then find the create a model of each type of plate using the puddi ...
... Pudding Plates Objective: Today you will be creating your own models of tectonic plate boundaries. Reread the pre-lab activity from the other day and find the three types of plate boundaries that occur throughout the Earth’s surface. Then find the create a model of each type of plate using the puddi ...
ABSTRACT: The Black Sea formed (mainly) within old Eurasian
... of the modern Black Sea were contiguous parts of the Eurasian plate since at least Early Palaeozoic, if not even Neoproterozoic times. Heat flow data and lithosphere rheology and tomography models suggest that the lithosphere beneath the Black Sea is cold and strong. Comparison of the regional distr ...
... of the modern Black Sea were contiguous parts of the Eurasian plate since at least Early Palaeozoic, if not even Neoproterozoic times. Heat flow data and lithosphere rheology and tomography models suggest that the lithosphere beneath the Black Sea is cold and strong. Comparison of the regional distr ...
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.