Physical Geography Geomorphology
... largest explosive eruption on Earth in last 25 million years global consequences: killed most humans alive, volcanic winter temp. decline of 3-5°C, 15°C in high latitudes ...
... largest explosive eruption on Earth in last 25 million years global consequences: killed most humans alive, volcanic winter temp. decline of 3-5°C, 15°C in high latitudes ...
NATS1311_120408_bw
... How Planetary Properties Affect each Process impact cratering - # of impacts same for all planets - larger planets erase more craters volcanism and tectonics - requires interior heat - retained longer by large planets erosion - requires an atmosphere - large size for volcanic outgassing - moderate ...
... How Planetary Properties Affect each Process impact cratering - # of impacts same for all planets - larger planets erase more craters volcanism and tectonics - requires interior heat - retained longer by large planets erosion - requires an atmosphere - large size for volcanic outgassing - moderate ...
- gst boces
... o Carbon-14 dates recent, once living objects, within 30,000 years old because it has a shorter halflife; Uranium-238 dates oldest rocks because it has a longer half-life. Half-Life % of Material Remaining Carbon-14 Age Original (0) ...
... o Carbon-14 dates recent, once living objects, within 30,000 years old because it has a shorter halflife; Uranium-238 dates oldest rocks because it has a longer half-life. Half-Life % of Material Remaining Carbon-14 Age Original (0) ...
U and Th in Earth Reservoirs
... The Age of the Elements • An earlier generation star exploded (supernova) creating a cloud of debris and elements • Some time after, a compression occurs in the cloud, due either to UV-bubbles or another supernova • Gravitational collapse begins for our solar system and sun: – (our sun is a second- ...
... The Age of the Elements • An earlier generation star exploded (supernova) creating a cloud of debris and elements • Some time after, a compression occurs in the cloud, due either to UV-bubbles or another supernova • Gravitational collapse begins for our solar system and sun: – (our sun is a second- ...
PLATE TECTONICS REVIEW (part 2) PLATE BOUNDARIES
... A TRENCH IS FORMING. IT FORMS AS OCEANIC CRUST GOES BENEATH THE CONTINENTAL CRUST. (SUBDUCTION) 3. What is happening at Z? ...
... A TRENCH IS FORMING. IT FORMS AS OCEANIC CRUST GOES BENEATH THE CONTINENTAL CRUST. (SUBDUCTION) 3. What is happening at Z? ...
Continental Drift and Plate Tectonics
... Plate Tectonics Theory A. The theory is that the Earth is divided into lithospheric or tectonic plates that move about the Earth (like slabs of ice on a lake) “tekton” is a Greek word that means “to build”. They move at a rate of 1-10 cm per year. B. Lithosphere - (lithos is Greek root for rock or s ...
... Plate Tectonics Theory A. The theory is that the Earth is divided into lithospheric or tectonic plates that move about the Earth (like slabs of ice on a lake) “tekton” is a Greek word that means “to build”. They move at a rate of 1-10 cm per year. B. Lithosphere - (lithos is Greek root for rock or s ...
Word Bank Crust Inner core Mantle Outer Core Lithosphere
... 1. Where are Earth’s tectonic plates located? A. They float just below the crust. B. They float on top of the inner core. C. They float on top of the lower mantle D. They float on the atmosphere 2. Most of Earth’s mass is in the A. crust. B. mantle. ...
... 1. Where are Earth’s tectonic plates located? A. They float just below the crust. B. They float on top of the inner core. C. They float on top of the lower mantle D. They float on the atmosphere 2. Most of Earth’s mass is in the A. crust. B. mantle. ...
GR. 6 EARTH SCIENCE CURRICULUM GUIDE Enduring
... Seasons are caused by the 10. Explain how the tilt of tilt of the Earth and the Earth and its revolution around the sun. revolution around the sun results in an uneven heating of the earth, which is turn causes the seasons. ...
... Seasons are caused by the 10. Explain how the tilt of tilt of the Earth and the Earth and its revolution around the sun. revolution around the sun results in an uneven heating of the earth, which is turn causes the seasons. ...
Name
... teacher!) 7. Twenty-four of the slices (using the 15 slice produced by the measurements shown on the attached “construction detail” drawing, Figure 1) can be arranged into a complete circle representing a 1:10 million scale cross section through the entire Earth. Label the main regions: lithosphere ...
... teacher!) 7. Twenty-four of the slices (using the 15 slice produced by the measurements shown on the attached “construction detail” drawing, Figure 1) can be arranged into a complete circle representing a 1:10 million scale cross section through the entire Earth. Label the main regions: lithosphere ...
Name____________________________
... 6. When two plates meet, this is called a Convergent boundary. 7. Deep canyons where one plate slides under another are called Trenches. 8. When two plates slide past each other this is a Transform boundary. 9. A Hot Spot is a place where magma works its way to the surface within a plate. 10. North ...
... 6. When two plates meet, this is called a Convergent boundary. 7. Deep canyons where one plate slides under another are called Trenches. 8. When two plates slide past each other this is a Transform boundary. 9. A Hot Spot is a place where magma works its way to the surface within a plate. 10. North ...
The Layer`s Of The Earth!
... * Like the skin of an applevery thin compared to the other three layers. *The crust makes up 1% of the Earth. It is 20 miles deep. * The crust of the Earth is broken into many pieces called plates. ...
... * Like the skin of an applevery thin compared to the other three layers. *The crust makes up 1% of the Earth. It is 20 miles deep. * The crust of the Earth is broken into many pieces called plates. ...
Earth History
... magma, but recently some zircons from Australia gave an age of ~4.4 Ga, suggesting some solid igneous rocks were present. ...
... magma, but recently some zircons from Australia gave an age of ~4.4 Ga, suggesting some solid igneous rocks were present. ...
PLATE TECTONICS
... fossils on different continents now separated by oceans. In his model, during the cooling process, parts of the Earth sank deeper than others, forming the ocean basins. Suess claimed that certain parts of the sea floor and continents could rise and sink as they adjusted to changes in the cooling Ear ...
... fossils on different continents now separated by oceans. In his model, during the cooling process, parts of the Earth sank deeper than others, forming the ocean basins. Suess claimed that certain parts of the sea floor and continents could rise and sink as they adjusted to changes in the cooling Ear ...
Sedimentary Rocks
... • Require a lot of energy to transport, for example: fast rivers, glaciers, land slides – a. rounded = Conglomerate - transported a long distance by fast-flowing water (= fast fluvial) – b. angular = Breccia - transported a short distance by: • Glaciers - deposited when ice melts • Gravity - an allu ...
... • Require a lot of energy to transport, for example: fast rivers, glaciers, land slides – a. rounded = Conglomerate - transported a long distance by fast-flowing water (= fast fluvial) – b. angular = Breccia - transported a short distance by: • Glaciers - deposited when ice melts • Gravity - an allu ...
Chapter 1: Meet Planet Earth
... Over millions of years, gravity slowly gathered the thinly spread atoms into a thicker gas. Near the center of this gathering cloud the temperature and density became so great that hydrogen atoms began to fuse to form helium atoms (a nuclear reactor). The outer portion of the cosmic gas cloud ...
... Over millions of years, gravity slowly gathered the thinly spread atoms into a thicker gas. Near the center of this gathering cloud the temperature and density became so great that hydrogen atoms began to fuse to form helium atoms (a nuclear reactor). The outer portion of the cosmic gas cloud ...
Section 8.4 Earths Layered Structure
... List the layers of the Earth based on composition and physical properties. Describe the composition of each layer of Earth. Explain how scientists determined Earth’s structure and composition. ...
... List the layers of the Earth based on composition and physical properties. Describe the composition of each layer of Earth. Explain how scientists determined Earth’s structure and composition. ...
Notes: The Theory of Plate Tectonics
... But, ocean _________ are too wide to have formed by any reasonable __________. Contracting Earth idea…in the ____________ the Earth’s _________ was evenly spread over the _________ ... as the mantle ___________, the crust wrinkled forming ____________ and ocean ____________. But, wrinkles form ...
... But, ocean _________ are too wide to have formed by any reasonable __________. Contracting Earth idea…in the ____________ the Earth’s _________ was evenly spread over the _________ ... as the mantle ___________, the crust wrinkled forming ____________ and ocean ____________. But, wrinkles form ...
Chapter 33
... Shrinking Earth Theory • Believed that the cooling of the planet resulted in its contraction. • Sea Floor spreading video http://www.iteachbio.com/Earth_Science/Earth _Science/earth.htm ...
... Shrinking Earth Theory • Believed that the cooling of the planet resulted in its contraction. • Sea Floor spreading video http://www.iteachbio.com/Earth_Science/Earth _Science/earth.htm ...
The Geosphere
... The inner core is composed of solid nickel and iron. This is due to the immense pressure found at the center of the Earth. ...
... The inner core is composed of solid nickel and iron. This is due to the immense pressure found at the center of the Earth. ...
Powerpoint for today
... Range in distance from Sun = 1.38 1.66 AU Rotation Period = 24.6 hours Orbital Period = 687 days ...
... Range in distance from Sun = 1.38 1.66 AU Rotation Period = 24.6 hours Orbital Period = 687 days ...
Chapter 17 - Heritage Collegiate
... different times for each to pass through the earth. However, the time it takes them to travel through the earth also depends on the type of rock material the waves pass through. Therefore any time difference in the arrival of P and S waves at a seismic station that could not be accounted for by the ...
... different times for each to pass through the earth. However, the time it takes them to travel through the earth also depends on the type of rock material the waves pass through. Therefore any time difference in the arrival of P and S waves at a seismic station that could not be accounted for by the ...
rocks and the earth`s interior - FAU
... • Lower mantle region between the asthenosphere and the outer core • It is the largest layer of the earth • This region, also called the lower mantle, is named in order to differentiate from the lithosphere and asthenosphere portions of the mantle • Higher pressure makes the mesosphere more solid th ...
... • Lower mantle region between the asthenosphere and the outer core • It is the largest layer of the earth • This region, also called the lower mantle, is named in order to differentiate from the lithosphere and asthenosphere portions of the mantle • Higher pressure makes the mesosphere more solid th ...
History of Earth
The history of Earth concerns the development of the planet Earth from its formation to the present day. Nearly all branches of natural science have contributed to the understanding of the main events of the Earth's past. The age of Earth is approximately one-third of the age of the universe. An immense amount of biological and geological change has occurred in that time span.Earth formed around 4.54 billion years ago by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere, but it contained almost no oxygen and would have been toxic to humans and most modern life. Much of the Earth was molten because of frequent collisions with other bodies which led to extreme volcanism. One very large collision is thought to have been responsible for tilting the Earth at an angle and forming the Moon. Over time, the planet cooled and formed a solid crust, allowing liquid water to exist on the surface.The first life forms appeared between 3.8 and 3.5 billion years ago. The earliest evidences for life on Earth are graphite found to be biogenic in 3.7-billion-year-old metasedimentary rocks discovered in Western Greenland and microbial mat fossils found in 3.48-billion-year-old sandstone discovered in Western Australia. Photosynthetic life appeared around 2 billion years ago, enriching the atmosphere with oxygen. Life remained mostly small and microscopic until about 580 million years ago, when complex multicellular life arose. During the Cambrian period it experienced a rapid diversification into most major phyla. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described.Geological change has been constantly occurring on Earth since the time of its formation and biological change since the first appearance of life. Species continuously evolve, taking on new forms, splitting into daughter species, or going extinct in response to an ever-changing planet. The process of plate tectonics has played a major role in the shaping of Earth's oceans and continents, as well as the life they harbor. The biosphere, in turn, has had a significant effect on the atmosphere and other abiotic conditions on the planet, such as the formation of the ozone layer, the proliferation of oxygen, and the creation of soil.