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Geology Test08
Geology Test08

... 19. Base your answer to the question below on the geologic cross section below, which shows a view of rock layers at Earth’s surface. The dashed lines connect points of the same age. Major fossils contained within each rock layer are shown. The valleys are labeled X, Y, and Z. In this region, valle ...
Layers of the Earth and Plate Tectonics
Layers of the Earth and Plate Tectonics

Name
Name

... 5. What is the liquid layer of the Earth’s core called? 6. What layer of the Earth consists mainly of iron? 7. List some evidence that proved continental drift did occur? 8. Earthquakes mainly are associated with what one boundary? 9. Draw and label all the layers and sub layers of the Earth. 10. Wh ...
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version 1

... boundaries. Earth loses internal heat this way. ...
The Four Layers
The Four Layers

... The mantle is made of much denser, thicker material, because of this the plates "float" on it like oil floats on water. Many geologists believe that the mantle "flows" because of convection currents. Convection currents are caused by the very hot material at the deepest part of the mantle rising, th ...
ANALYZING DATA
ANALYZING DATA

... Use a fishbone to help you understand what you know about plate tectonics ...
The Theory of Plate Tectonics - Ouray School District R-1
The Theory of Plate Tectonics - Ouray School District R-1

... Theory of Microplate Terranes: Continents are actually a patchwork of the lithosphere. 1)Terrane contains rock and fossils that differ from neighboring terranes. 2)Major faults at the boundaries of the terrane ...
Layers of the Earth powerpoint
Layers of the Earth powerpoint

... The Earth is composed of four different layers. The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball sm ...
B. Geological and geophysical phenomena
B. Geological and geophysical phenomena

... i. Describes different types of erosion (e.g. soils dried by the wind, fragmentation of rocks caused by water freezing and thawing) f. Winds i. Names the main factors responsible for wind (e.g. convection movements, movement of air masses) g. Watercycle i. Explains the water cycle (phase changes, en ...
The plate tectonic revolution part I.
The plate tectonic revolution part I.

... Raff, A. D. and R. G. Mason. 1961. Magnetic survey off the west coast of North America, 40º N. latitude to 52º N. latitude. Geological Society of ...
Geomorphology - Cloudfront.net
Geomorphology - Cloudfront.net

... of rocks into a series of rounded waves. ...
rocks-sec 2 igneous
rocks-sec 2 igneous

... - Takes a long time for these to cool, so they rock crystals are larger and can be easily seen. - Found at the Earth’s surface only after layers of rock and soil have eroded away. - Erosion takes place as these rocks are pushed up towards the surface. ...
The Terrestrial Planets Chapter 6:
The Terrestrial Planets Chapter 6:

... worlds are all differentiated, where have denser materials has sunk to the the interior and the lowest density material has risen to the surface ...
GY 112 Lecture Notes
GY 112 Lecture Notes

... going to become a scientist, you must be able to reject an idea based upon fact. When Velikovsky’s book was published, the scientific community apparently jumped all over it. I suspect that it was because of the religious overtones (science and religion will never be totally comfortable with one ano ...
GeologicTimePPT
GeologicTimePPT

... another rock must be older than the rock in which they are found ...
PRACTICE Test: Earth Science INSTRUCTIONS - Ms
PRACTICE Test: Earth Science INSTRUCTIONS - Ms

... c. The number of electrons d. The number of protons and neutrons 18. Which of the following choices represents an isotope? a. H2 ...
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... Oceanic plate is denser than a continental plate so it subducts under the continental plate. At mid ocean ridges two oceanic plates are moving away from one another so they will not subduct. 19. Identifying Relationships New tectonic material continually forms at divergent boundaries. Tectonic plate ...
Grade 3 Rocks and Minerals Review
Grade 3 Rocks and Minerals Review

... http://stloe.most.go.th/html/lo_index/LOcanada2/204/images/2_4_5en.jpg ...
Chemistry Unit Test Study Guide
Chemistry Unit Test Study Guide

... 29. What is the difference between oceanic crust and continental crust? 30. What is the difference between the Earth’s crust and mantle? What are the similarities? 31. List the Earth’s layers from the center to the surface. 32. What is the difference between the inner core and the outer core? 33. Wh ...
Dynamic Earth Test Review
Dynamic Earth Test Review

... Seismic waves (speed, names, how they move, etc.) Difference between epicenter and focus Seismogram, seismograph How to locate the epicenter of an earthquake 3 types of faults Richter and Mercalli scales – what they are based on, used for, etc. How a fault is different from a plate boundary Differen ...
chapter 14
chapter 14

... ________________ plates that move extremely ____________ across the earth’s surface. About 12 or so rigid tectonic ____________ move across the surface of the ____________ very slowly. These thick plates compose the ____________________. C. The movement of these plates produces __________________ on ...
Earth Layers PPT
Earth Layers PPT

... The Earth is composed of four different layers. The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball sm ...
chapter 11 Dynamic Planet
chapter 11 Dynamic Planet

... He portrayed the breakup of Pangaea and the movement of continents to their present position 1937: Alexander du Toit named Laurasia, the northern continental masses, and placed them so that extensive coal deposits on them were located at the equator ...
Document
Document

... _____ 6. The average salinity of seawater by weight is a. 0.35 percent. b. 3.5 percent. c. 35.0 percent. d. None of the above _____ 7. With respect to energy, Earth is a(n) a. layered system. b. integrated system. c. open system. d. closed system. _____ 8. Where do organisms obtain the energy they n ...
Answer Key
Answer Key

... 2) Deforestation caused by burning of trees will also cause CO2 concentration to increase because less trees exist to take CO2 out of the atmosphere. ...
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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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