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07_LectureOutline
07_LectureOutline

... the Earth where charged particles from the solar wind are trapped ...
Name: 1 GEOL 104 Dinosaurs: A Natural History Geology
Name: 1 GEOL 104 Dinosaurs: A Natural History Geology

... and its fossils are found both in North America and eastern Asia. Fossils of Amia remain nearly identical throughout the last 95 million years. ...
Next Question
Next Question

... Extrusive igneous rock is most likely to have a ________-grained texture. WHY? Fine; because it cools outside Earth’s surface and therefore cools so quickly that there is not time for large grains to form ...
Presentation
Presentation

... trembling that results from sudden movement of part of the Earth’s crust Caused by release of energy (lithospheric plates) ...
Seismic Waves - Fort Thomas Independent Schools
Seismic Waves - Fort Thomas Independent Schools

... • The fact that P-waves pass through the core, but are refracted along the way, indicates that the inner core is denser than the outer core and solid. • When pressure dominates, atoms are squeezed together tightly and exist in the solid state. • If temperatures are high enough, atoms move apart enou ...
The Earth`s Layers Foldable
The Earth`s Layers Foldable

... 4. Set a piece of 8 by 11 blue paper in front of you. Closely trim the title. Paste The Earth's Layers title in the top left corner of the paper (or bottom right corner after you have folded and stapled the pages together--see Image). 5. Paste the Crust on the top of the first blue paper, to the lef ...
Introduction to Plate Tectonics - EHS
Introduction to Plate Tectonics - EHS

... • No mechanism to move the continents from one place to another • Scientists did not know much about the ocean floor • dismissed as being eccentric, preposterous, and improbable ...
Document
Document

... In the emerging conception of Big History, the largely contemporaneous regimes of Earth and life occupy the middle ground between the Cosmos and humanity. As part of the bridging of disciplinary boundaries, historians and astronomers will need to learn how geologists and paleontologists read history ...
File - South Sevier High School
File - South Sevier High School

... a. _________________________________ b. _________________________________ c. _________________________________ d. _________________________________ e. _________________________________ 6. True or False Usually, no new material (except for water) is added to a rock during metamorphism. 7. Where does ...
Rock Types - Volcanoes Alive!
Rock Types - Volcanoes Alive!

... igneous rocks, on the other hand, are formed when magma reaches the surface of Earth and cools quickly. Mineral crystals cannot grow very large during this rapid cooling, so the rocks are fine grained. Texture can vary. Examples are pumice and obsidian. Igneous rocks are the most common rocks found ...
Powerpoint Presentation Physical Geology, 10/e
Powerpoint Presentation Physical Geology, 10/e

... • Deep interior of the Earth must be studied indirectly – Direct access only to crustal rocks and small upper mantle fragments brought up by volcanic eruptions or slapped onto continents by subducting oceanic plates – Deepest drillhole reached about 12 km, but did not reach the mantle ...
Inside Earth: Chapter 1- Plate Tectonics
Inside Earth: Chapter 1- Plate Tectonics

... • The collisions of two plates can cause compression and folding of the crust • Such plate collisions also lead to earthquakes, because folding rock can fracture and produce faults ...
Document
Document

...  C. New rock comes to the Earth's surface ...
Earth Science Curriculum Framework
Earth Science Curriculum Framework

... The student will demonstrate an understanding of the nature of science and scientific reasoning and logic. Key concepts include a) science explains and predicts the interactions and dynamics of complex Earth systems; b) evidence is required to evaluate hypotheses and explanations; c) observation and ...
Plate Tectonics 1
Plate Tectonics 1

... • from the Greek τέκτων; tektōn, meaning “builder” or “mason” The main features of plate tectonics are: • The Earth's surface is covered by a series of crustal plates. • The ocean floors are continually moving, spreading from the center, sinking at the edges, and being regenerated. • Convection curr ...
Plate Tectonics 1
Plate Tectonics 1

... • from the Greek τέκτων; tektōn, meaning “builder” or “mason” The main features of plate tectonics are: • The Earth's surface is covered by a series of crustal plates. • The ocean floors are continually moving, spreading from the center, sinking at the edges, and being regenerated. • Convection curr ...
View Chapter 3 of the book
View Chapter 3 of the book

... by a motor vehicle as it passes. If virtually all galaxies are moving apart relative to one another, then the Universe must be expanding away from a single point. The implication of this discovery is that all matter, as well as time, was created by the explosion of a point source of almost infinite ...
lithosphere, mid-ocean ridge
lithosphere, mid-ocean ridge

... a. Island arcs will form parallel to a trench b. A spreading center will create a rift valley. c. Continental crust will be destroyed. d. Subduction will cause oceanic crust to melt. 7. Why are earthquakes likely to occur at J? a. Two plates are spreading away from each other. b. Two plates are coll ...
PDF format
PDF format

... B. Earth’s magnetic field reverses about every half million years C. plate tectonics causes continents and ocean crust to slowly drift away from ridges D. new ocean crust is constantly being created at mid-ocean ridges E. all of the above 19. The oldest oceanic crust beneath the ocean basins occurs: ...
Chapter 3:The Dynamic Earth
Chapter 3:The Dynamic Earth

... • Fault- break in Earth’s crust preventing it from sliding • When it breaks and creates vibrations in crusts  creates earthquakes • Occur all the time most are too small to feel • Richter scale- quantify the amount of energy reassessed by an earthquake or its magnitude • Smallest magnitude that can ...
Geological Features
Geological Features

...  Processes that destroy landforms (weathering, erosion, landslides, volcanic eruptions, earthquakes, floods) Natural processes that can affect Earth’s oceans and land include: Weathering  Weathering is a general term used to describe processes that break down rocks at or near the surface of the ea ...
Lecture 13.
Lecture 13.

... the state of gravitational equilibrium between the earth's lithosphere and asthenosphere such that the tectonic plates "float" at an elevation which depends on their thickness and density. One interesting property of the continental and oceanic crust is that these tectonic plates have the ability to ...
Evaluating Evidence of Plate Tectonics
Evaluating Evidence of Plate Tectonics

... • Describe the relationship between the motion of continental plates and the patterns in the ages of crustal rocks, including: – Mid-ocean ridges, material from Earth’s interior must be emerging and forming new rocks with youngest ages – Continental centers will have oldest rocks because new crust i ...
TOPIC WORD DEFINITION Volcanoes aftershock An earthquake
TOPIC WORD DEFINITION Volcanoes aftershock An earthquake

Geologic Time Part I: Relative Dating
Geologic Time Part I: Relative Dating

... weathering zones that require time to form prior to burial). ...
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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.
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