printer-friendly version of benchmark
... Students understand the concept of plate tectonics including the evidence that supports it (structural, geophysical and paleontological evidence). E/S Common misconceptions associate with this benchmark 1. Students incorrectly believe that the continents randomly drift about the Earth or that the co ...
... Students understand the concept of plate tectonics including the evidence that supports it (structural, geophysical and paleontological evidence). E/S Common misconceptions associate with this benchmark 1. Students incorrectly believe that the continents randomly drift about the Earth or that the co ...
printer-friendly sample test questions
... C. Earth’s rotation has spun Australia into different locations. D. temperature differences have been creating convection currents in Earth’s interior moving landmasses. 2nd Item Specification: Identify the evidence for seafloor spreading. Depth of Knowledge Level 1 6. Which information indicates th ...
... C. Earth’s rotation has spun Australia into different locations. D. temperature differences have been creating convection currents in Earth’s interior moving landmasses. 2nd Item Specification: Identify the evidence for seafloor spreading. Depth of Knowledge Level 1 6. Which information indicates th ...
Possible Biological Consequences of Plate Tectonics
... The fundamental idea of plate tectonics is that the ocean floor moves. The lithosphere of the earth (approximately the top 70 km) consists essentially of a system of large, nearly rigid plates added to by upwelling of new, relatively hot lithosphere along oceanic ridges and destroyed by subduction a ...
... The fundamental idea of plate tectonics is that the ocean floor moves. The lithosphere of the earth (approximately the top 70 km) consists essentially of a system of large, nearly rigid plates added to by upwelling of new, relatively hot lithosphere along oceanic ridges and destroyed by subduction a ...
The Theory of Plate Tectonics
... Geologists believe that a huge column of upwelling lava, known as a “plume,” lies at a fixed position under the Pacific Plate. As the ocean floor moves over this “hot spot” at about five inches a year, the upwelling lava creates a steady succession of new volcanoes that migrate along with the plate ...
... Geologists believe that a huge column of upwelling lava, known as a “plume,” lies at a fixed position under the Pacific Plate. As the ocean floor moves over this “hot spot” at about five inches a year, the upwelling lava creates a steady succession of new volcanoes that migrate along with the plate ...
Chapter 4
... • Magnetic Anomalies - found weak & strong signal – Alternating normal & reversed polarization – Stripes || to & symmetrical about MOR ...
... • Magnetic Anomalies - found weak & strong signal – Alternating normal & reversed polarization – Stripes || to & symmetrical about MOR ...
Ch 4 PPT - Blountstown Middle School
... energy from the core produce the energy for convection. ...
... energy from the core produce the energy for convection. ...
Geology 101 Name(s): Lab 8: Plate tectonics The Plate Tectonic
... Lab 8: Plate tectonics The Plate Tectonic Map of the Circum-Pacific Basin Region This is a classic map that summarizes a recent (1985) state of knowledge about plate tectonics in the Pacific Rim (it’s not called the “Ring of Fire” for nothing, you know). Unfortunately, the American Association of Pe ...
... Lab 8: Plate tectonics The Plate Tectonic Map of the Circum-Pacific Basin Region This is a classic map that summarizes a recent (1985) state of knowledge about plate tectonics in the Pacific Rim (it’s not called the “Ring of Fire” for nothing, you know). Unfortunately, the American Association of Pe ...
Chapter 9 Plate Tectonics
... the magnetic poles at the time the rock became magnetized. _______________ polarity—when rocks show the same magnetism as the present magnetism field _______________ polarity—when rocks show the opposite magnetism as the present magnetism field The discovery of strips of alternating ____________ ...
... the magnetic poles at the time the rock became magnetized. _______________ polarity—when rocks show the same magnetism as the present magnetism field _______________ polarity—when rocks show the opposite magnetism as the present magnetism field The discovery of strips of alternating ____________ ...
In geologic terms, a plate is a large, rigid slab of solid rock
... Early in the 20th century, paleomagnetists recognized that rocks generally belong to two groups according to their magnetic properties. One group has so-called normal polarity, characterized by the magnetic minerals in the rock having the same polarity as that of the Earth's present magnetic field. ...
... Early in the 20th century, paleomagnetists recognized that rocks generally belong to two groups according to their magnetic properties. One group has so-called normal polarity, characterized by the magnetic minerals in the rock having the same polarity as that of the Earth's present magnetic field. ...
Plate Tectonics Review
... This is the record of the past orientation and polarity of the Earth’s magnetic field recorded in rocks containing the mineral magnetite. ...
... This is the record of the past orientation and polarity of the Earth’s magnetic field recorded in rocks containing the mineral magnetite. ...
Geology 101 Name(s):
... Lab 2: Plate tectonics The Plate Tectonic Map of the Circum-Pacific Basin Region This is a classic map that summarizes a recent (1985) state of knowledge about plate tectonics in the Pacific Rim (it’s not called the “Ring of Fire” for nothing, you know). Unfortunately, the American Association of Pe ...
... Lab 2: Plate tectonics The Plate Tectonic Map of the Circum-Pacific Basin Region This is a classic map that summarizes a recent (1985) state of knowledge about plate tectonics in the Pacific Rim (it’s not called the “Ring of Fire” for nothing, you know). Unfortunately, the American Association of Pe ...
CHAPTER 3
... to remain stable above the hole during drilling (see fig. 3.10). Drilling revealed that: a. there is no oceanic crust older than about 180 million years, b. the thickness of sediment increases away from the ridges, c. the age of surface sediment is recent everywhere, and d. the age of the sediment a ...
... to remain stable above the hole during drilling (see fig. 3.10). Drilling revealed that: a. there is no oceanic crust older than about 180 million years, b. the thickness of sediment increases away from the ridges, c. the age of surface sediment is recent everywhere, and d. the age of the sediment a ...
Seafloor Spreading Hypothesis
... mountains in the Pacific that he gave the name guyot. He puzzled at what could have formed mountains that appeared to be eroded at the top but were more than a mile beneath the sea surface. Hess also noticed trenches that were as much as 7 miles deep. Meanwhile, other scientists like Bruce Heezen di ...
... mountains in the Pacific that he gave the name guyot. He puzzled at what could have formed mountains that appeared to be eroded at the top but were more than a mile beneath the sea surface. Hess also noticed trenches that were as much as 7 miles deep. Meanwhile, other scientists like Bruce Heezen di ...
Earth,Notes,RevQs,Ch12
... Answers to the Review Questions 1. Gravity is the force responsible for the layering of planets because it causes the more dense materials to sink inwards as a planet is forming. Each successive layer outward towards a planets surface is composed of less dense materials, resulting in the layered str ...
... Answers to the Review Questions 1. Gravity is the force responsible for the layering of planets because it causes the more dense materials to sink inwards as a planet is forming. Each successive layer outward towards a planets surface is composed of less dense materials, resulting in the layered str ...
Continental Drift - Ashland Independent Schools
... What are some things that make the theory of Continental drift difficult to accept? As you read, see how your ideas compare with people who first heard the theory. Why was the scientific community dissatisfied with the theory of continental drift? ...
... What are some things that make the theory of Continental drift difficult to accept? As you read, see how your ideas compare with people who first heard the theory. Why was the scientific community dissatisfied with the theory of continental drift? ...
Plate Tectonics and Deformation of the Crust
... Evidence of Continental Drift A window into the past. The fossil remains of the now-extinct reptile Mesosaurus found in Permian sediments in Africa and South America provided one of the earliest clues to a former connection between the two continents. Mesosaurus was a freshwater species and so clea ...
... Evidence of Continental Drift A window into the past. The fossil remains of the now-extinct reptile Mesosaurus found in Permian sediments in Africa and South America provided one of the earliest clues to a former connection between the two continents. Mesosaurus was a freshwater species and so clea ...
Volcanoes and Igneous Activity Earth - Chapter 4 - sir
... A renewed interest in continental drift initially came from rock magnetism Magnetized minerals in rocks: ...
... A renewed interest in continental drift initially came from rock magnetism Magnetized minerals in rocks: ...
Chapter 3
... • Mechanism to describe how continental masses moved was not easily visualized for decades • Later half of 20th century the concept of continental drift was incorporated into a broader concept of Plate Tectonics – Mechanisms and processes of continent scale movement detailed ...
... • Mechanism to describe how continental masses moved was not easily visualized for decades • Later half of 20th century the concept of continental drift was incorporated into a broader concept of Plate Tectonics – Mechanisms and processes of continent scale movement detailed ...
Chapter 19 - Heritage Collegiate
... by glaciers. The direction of the striations suggested that if the continents were always where they are now, then these glaciers must have moved in from the sea. Wegener explained that if Pangaea was situated with South Africa centered on the South Pole, then the presence of glaciers on Pangaea ne ...
... by glaciers. The direction of the striations suggested that if the continents were always where they are now, then these glaciers must have moved in from the sea. Wegener explained that if Pangaea was situated with South Africa centered on the South Pole, then the presence of glaciers on Pangaea ne ...
Introduction - Stanford Exploration Project
... SPG, 2006. SPG Media Limited website: Agbami Discovery Well, Niger Delta, Nigeria. (Online at http://www.offshore-technology.com/projects/agbami/ ...
... SPG, 2006. SPG Media Limited website: Agbami Discovery Well, Niger Delta, Nigeria. (Online at http://www.offshore-technology.com/projects/agbami/ ...
Plate Tectonics
... area in the Pacific Ocean just west of Central America. • These plates are not anchored in place but slide over a hot and bendable layer of the mantle. ...
... area in the Pacific Ocean just west of Central America. • These plates are not anchored in place but slide over a hot and bendable layer of the mantle. ...
Plate Tectonics
... During convection, heated particles of fluid begin to flow. This flow transfers heat from one part of the fluid to another. • Heat from the core and the mantle itself causes convection _____________ in the mantle. • Many geologists think that plumes of mantle rock rise slowly from the bottom of the ...
... During convection, heated particles of fluid begin to flow. This flow transfers heat from one part of the fluid to another. • Heat from the core and the mantle itself causes convection _____________ in the mantle. • Many geologists think that plumes of mantle rock rise slowly from the bottom of the ...
Plates on the Move
... • Strange rocks shaped like pillows were found. The rocks form only when molten material hardens quickly after erupting under water. These rocks showed that molten material has erupted over and over along the mid-ocean ridge. ...
... • Strange rocks shaped like pillows were found. The rocks form only when molten material hardens quickly after erupting under water. These rocks showed that molten material has erupted over and over along the mid-ocean ridge. ...
Anyone who has attended elementary school knows Earth is layered
... each layer. This site can be used to clear up misconceptions about how scientists understand the composition of the layers or as an extension for teaching wave movement. The following link takes you to a page (Step 1) containing images of A View of Earth from Above. Below the image are questions for ...
... each layer. This site can be used to clear up misconceptions about how scientists understand the composition of the layers or as an extension for teaching wave movement. The following link takes you to a page (Step 1) containing images of A View of Earth from Above. Below the image are questions for ...
Geomagnetic reversal
A geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged. The Earth's field has alternated between periods of normal polarity, in which the direction of the field was the same as the present direction, and reverse polarity, in which the field was the opposite. These periods are called chrons. The time spans of chrons are randomly distributed with most being between 0.1 and 1 million years with an average of 450,000 years. Most reversals are estimated to take between 1,000 and 10,000 years.The latest one, the Brunhes–Matuyama reversal, occurred 780,000 years ago;and may have happened very quickly, within a human lifetime. A brief complete reversal, known as the Laschamp event, occurred only 41,000 years ago during the last glacial period. That reversal lasted only about 440 years with the actual change of polarity lasting around 250 years. During this change the strength of the magnetic field dropped to 5% of its present strength. Brief disruptions that do not result in reversal are called geomagnetic excursions.