Unit 4.2 Test Review Layer Composition Thickness State of Matter
... 6. We call underwater mountain chains that run through oceanic crust __mid-ocean ridges________. 7. In sea floor spreading, ___new_____ crust forms at mid-ocean ridges while _______older_______ crust is pushed away from the ridge. ...
... 6. We call underwater mountain chains that run through oceanic crust __mid-ocean ridges________. 7. In sea floor spreading, ___new_____ crust forms at mid-ocean ridges while _______older_______ crust is pushed away from the ridge. ...
Volcano Earthquake Notes
... • Scientists use the similarity of rock types and fossil types that date to the same age to support their theory that the continents were connected to form a super continent. • The map below give just one example of areas on different continents that show the same fossils and rock types. ...
... • Scientists use the similarity of rock types and fossil types that date to the same age to support their theory that the continents were connected to form a super continent. • The map below give just one example of areas on different continents that show the same fossils and rock types. ...
bout these briefings he where, when and how of volcanoes
... Alban Hills volcano where there is evidence of recent uplift over the past few decades.One of the biggest potential geohazards threatening Europe currently sits quietly overlooking the Bay of Naples. Mt Vesuvius has erupted more than 50 times in the last 2000 years. An eruption in 1631 killed 4000 p ...
... Alban Hills volcano where there is evidence of recent uplift over the past few decades.One of the biggest potential geohazards threatening Europe currently sits quietly overlooking the Bay of Naples. Mt Vesuvius has erupted more than 50 times in the last 2000 years. An eruption in 1631 killed 4000 p ...
Accommodating sill-complex emplacement
... School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, England, UK ...
... School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, England, UK ...
MS Science - Kawameeh Middle School
... Plate Motion (cont.) •Wegener’s hypothesis of continental drift was not accepted for more than 50 years after it was proposed. •The main reason for this was because he could not explain how the continents could move. ...
... Plate Motion (cont.) •Wegener’s hypothesis of continental drift was not accepted for more than 50 years after it was proposed. •The main reason for this was because he could not explain how the continents could move. ...
Sea floor spreading= the process by which new oceanic crust is
... By Kinzie Sikkema We all live on the Earth, but most of us don’t care to learn about it. It is an amazing planet, constantly moving through space. But, did you know that it is also changing on itself? The crust of the earth is divided into different “sections” called plates. There are continental cr ...
... By Kinzie Sikkema We all live on the Earth, but most of us don’t care to learn about it. It is an amazing planet, constantly moving through space. But, did you know that it is also changing on itself? The crust of the earth is divided into different “sections” called plates. There are continental cr ...
Earth: Portrait of a Planet 3rd edition
... Deep time – The immense span of geologic time. It is so vast that it is difficult for people to grasp. ...
... Deep time – The immense span of geologic time. It is so vast that it is difficult for people to grasp. ...
Plate Tectonics Powerpoint PDF
... plate with oceanic crust at the front. The denser of the two crusts subducts beneath the other, creating a trench and dragging "scum" down that melts and explodes back up in ...
... plate with oceanic crust at the front. The denser of the two crusts subducts beneath the other, creating a trench and dragging "scum" down that melts and explodes back up in ...
theory in ms word format
... less dense in its centre and its greater surface (FIG. 1). Its "Seas" are much denser because their material comes from a part of the stringer, which fell upon these areas. These facts result to the Moon's centre of gravity being displaced towards its visible from the Earth side by 2,5 KM. After the ...
... less dense in its centre and its greater surface (FIG. 1). Its "Seas" are much denser because their material comes from a part of the stringer, which fell upon these areas. These facts result to the Moon's centre of gravity being displaced towards its visible from the Earth side by 2,5 KM. After the ...
plate tectonics review
... and rises and then cools and sinks. This circular pattern of movement within the mantle (called a convection current) pushes the lithospheric plates as they float. The movement and interaction of these plates causes most of the large scale changes on Earth's surface. ...
... and rises and then cools and sinks. This circular pattern of movement within the mantle (called a convection current) pushes the lithospheric plates as they float. The movement and interaction of these plates causes most of the large scale changes on Earth's surface. ...
METAMORPHIC ROCKS
... • most important agent because it provides energy to drive chemical reactions • geothermal gradient (25o C /km) & compressional heat • proximity to magmatic intrusions ...
... • most important agent because it provides energy to drive chemical reactions • geothermal gradient (25o C /km) & compressional heat • proximity to magmatic intrusions ...
Classifying Common Igneous Rocks
... melted rock materials cooled on or near the Earth’s surface, they are called extrusive igneous rocks. If extrusive igneous rocks have crystals, they are smaller than sand-sized. However, some extrusive igneous rocks cool so fast that crystals do not form at all like obsidian. Sometimes when extrusiv ...
... melted rock materials cooled on or near the Earth’s surface, they are called extrusive igneous rocks. If extrusive igneous rocks have crystals, they are smaller than sand-sized. However, some extrusive igneous rocks cool so fast that crystals do not form at all like obsidian. Sometimes when extrusiv ...
How do Scientists determine the boundaries of the plates?
... HOW DO SCIENTISTS DETERMINE THE BOUNDARIES OF THE EARTH’S PLATES? Scientists discovered that when the locations of earthquakes were plotted on a world map, these locations occurred in a variety of patterns. These patterns led scientists to believe that the earth’s crust is divided into different sec ...
... HOW DO SCIENTISTS DETERMINE THE BOUNDARIES OF THE EARTH’S PLATES? Scientists discovered that when the locations of earthquakes were plotted on a world map, these locations occurred in a variety of patterns. These patterns led scientists to believe that the earth’s crust is divided into different sec ...
earthquake - Westmoreland Central School
... • The intensity and energy of an earthquake are measured on two different scales. – Richter Scale – measure of energy released • Scale from 1 to 10 • Each step increases 10 times in magnitude – Modified Mercalli Scale – measure of effect • Scale uses Roman numerals from I to XII • Higher numbers ind ...
... • The intensity and energy of an earthquake are measured on two different scales. – Richter Scale – measure of energy released • Scale from 1 to 10 • Each step increases 10 times in magnitude – Modified Mercalli Scale – measure of effect • Scale uses Roman numerals from I to XII • Higher numbers ind ...
Plate Tectonics and Newfoundland
... This mountain range now exists throughout central and western Newfoundland and is the northernmost part of the Appalachians in North America. This range, continues through most of the British Isles and in to Norway. ...
... This mountain range now exists throughout central and western Newfoundland and is the northernmost part of the Appalachians in North America. This range, continues through most of the British Isles and in to Norway. ...
Plate Tectonics
... often forms island arc-volcanoes which erupt through the overriding plate as the descending plate melts below it Ex. Aleutian Islands of Alaska ...
... often forms island arc-volcanoes which erupt through the overriding plate as the descending plate melts below it Ex. Aleutian Islands of Alaska ...
Use this page to answer questions 1 – 3.
... If we were to strip the Earth’s crust of all the water, plants, buildings, and people, we would see that the crust is broke into pieces. It is broken into eight major pieces and bunches of minor pieces. The pieces constantly move around the planet. When we say constantly moving, we're talking centim ...
... If we were to strip the Earth’s crust of all the water, plants, buildings, and people, we would see that the crust is broke into pieces. It is broken into eight major pieces and bunches of minor pieces. The pieces constantly move around the planet. When we say constantly moving, we're talking centim ...
Rocks and Minerals - Georgia Standards
... You can test the hardness of a mineral (such as a diamond) by hitting it with a hammer. ...
... You can test the hardness of a mineral (such as a diamond) by hitting it with a hammer. ...
CTY Course Syllabus Dynamic Earth Day 1 Lesson/Lecture Topic
... Absolute Dating- how are they different and what can we learn from these methods? ...
... Absolute Dating- how are they different and what can we learn from these methods? ...
Sea Floor Evidence The technologies developed in the 1940s and
... released by volcanoes) and earthquakes along dipping Benioff zones (are deep active seismic areas in a subduction zone). The youngest oceanic crust is formed at the crest of a mid-oceanic ridge, and the crust becomes progressively older away from the ridge. The oldest oceanic crust is then subducted ...
... released by volcanoes) and earthquakes along dipping Benioff zones (are deep active seismic areas in a subduction zone). The youngest oceanic crust is formed at the crest of a mid-oceanic ridge, and the crust becomes progressively older away from the ridge. The oldest oceanic crust is then subducted ...
earthquake
... An earthquake (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the Earth's crust that creates seismic waves. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacing the ground. Earthquakes occur due to faults in the Earth's ...
... An earthquake (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the Earth's crust that creates seismic waves. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacing the ground. Earthquakes occur due to faults in the Earth's ...
How Diamonds Are Formed
... Diamonds are fascinating not just because of their value and beauty. They have unique physical and chemical properties that directly correlate to how they are made. This document briefly explains their origins. Words in green bold are found in the index in the back of this document. ...
... Diamonds are fascinating not just because of their value and beauty. They have unique physical and chemical properties that directly correlate to how they are made. This document briefly explains their origins. Words in green bold are found in the index in the back of this document. ...
Development of the Theory of Plate Tectonics
... Atlantic was much thinner than originally thought. Scientists had previously believed that the oceans have existed for at least 4 billion years, so therefore the sediment layer should have been very thick. Why then was there so little accumulation of sedimentary rock and debris on the ocean floor? T ...
... Atlantic was much thinner than originally thought. Scientists had previously believed that the oceans have existed for at least 4 billion years, so therefore the sediment layer should have been very thick. Why then was there so little accumulation of sedimentary rock and debris on the ocean floor? T ...
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.