Surface Features of Venus
... – about 1000 of them from 2 to 280 km diameter – cf. Earth has 150; Moon has many more – very few are under 10 km (Why?) – nearly all are “pristine” – entire surface ~15% of Lunar maria density – entire surface is about 500 million years old ...
... – about 1000 of them from 2 to 280 km diameter – cf. Earth has 150; Moon has many more – very few are under 10 km (Why?) – nearly all are “pristine” – entire surface ~15% of Lunar maria density – entire surface is about 500 million years old ...
Lecture presentation - NAU jan.ucc.nau.edu web server
... • Separates crustal materials from underlying mantle • Identified by a change in the velocity of P waves ...
... • Separates crustal materials from underlying mantle • Identified by a change in the velocity of P waves ...
types of rocks powerpoint
... Extrusive Rocks: forms when magma erupts onto the Earth’s surface (lava), cools quickly with very small or no crystals formed (THINK “EXit”) http://www.windows.ucar.edu/tour/link=/earth/geology/ig_intrusive.html&edu=high&fr=t ...
... Extrusive Rocks: forms when magma erupts onto the Earth’s surface (lava), cools quickly with very small or no crystals formed (THINK “EXit”) http://www.windows.ucar.edu/tour/link=/earth/geology/ig_intrusive.html&edu=high&fr=t ...
HERE
... • Can travel through the entire Earth. Through liquids (outer core) and solids (inner core). • The type of wave is called compression. It compresses (squeezes) the matter it’s moving through. (*** your chem teacher might call it longitudinal) • Click HERE for P-waves animation ...
... • Can travel through the entire Earth. Through liquids (outer core) and solids (inner core). • The type of wave is called compression. It compresses (squeezes) the matter it’s moving through. (*** your chem teacher might call it longitudinal) • Click HERE for P-waves animation ...
Volcanoes 2009 - Cobb Learning
... Subduction can cause a series of volcanoes parallel to the plate boundary. This creates mountain ranges like the Andes and volcanoes in the Pacific Northwest. At sea they create island arcs like Japan. ...
... Subduction can cause a series of volcanoes parallel to the plate boundary. This creates mountain ranges like the Andes and volcanoes in the Pacific Northwest. At sea they create island arcs like Japan. ...
Lecture 1.
... new seafloor is formed when magma is forced upward toward the surface at a mid-ocean ridge. If spreading continues past the incipient stage described above, two of the rift arms will open while the third arm stops opening and becomes a 'failed rift'. As the two active rifts continue to open, eventua ...
... new seafloor is formed when magma is forced upward toward the surface at a mid-ocean ridge. If spreading continues past the incipient stage described above, two of the rift arms will open while the third arm stops opening and becomes a 'failed rift'. As the two active rifts continue to open, eventua ...
The Rock Cycle ws File
... other processes contribute to the rock cycle, which makes and changes rocks on or below the Earth’s surface. The Earth is 4.6 billion years old, but you won’t find rocks that old because they have been recycled into younger rocks. Rocks are made of minerals, which are made of specific chemical eleme ...
... other processes contribute to the rock cycle, which makes and changes rocks on or below the Earth’s surface. The Earth is 4.6 billion years old, but you won’t find rocks that old because they have been recycled into younger rocks. Rocks are made of minerals, which are made of specific chemical eleme ...
Evolution of Earth`s Atmosphere
... composition from rocks containing plagioclase feldspar (above) to rocks that contain no feldspars (below). Second, in oceanic crust, there is a chemical discontinuity between ultramafic cumulates and tectonizedharzburgites, which has been observed from deep parts of the oceanic crust that have been ...
... composition from rocks containing plagioclase feldspar (above) to rocks that contain no feldspars (below). Second, in oceanic crust, there is a chemical discontinuity between ultramafic cumulates and tectonizedharzburgites, which has been observed from deep parts of the oceanic crust that have been ...
What happens to P-waves and S-waves from a crustal earthquake
... D. subduction of one oceanic plate under another at a convergent boundary ...
... D. subduction of one oceanic plate under another at a convergent boundary ...
Background
... lava flow. However, the basalt seen at the Giant’s Causeway on the Antrim coast of Northern Ireland is different; the lava cooled and cracked into huge columns, most of them with six sides. This happened here because the lava flowed into a huge river valley meaning that a large volume of lava gather ...
... lava flow. However, the basalt seen at the Giant’s Causeway on the Antrim coast of Northern Ireland is different; the lava cooled and cracked into huge columns, most of them with six sides. This happened here because the lava flowed into a huge river valley meaning that a large volume of lava gather ...
Inferred Properties of the Earth`s Interior
... 19. The thickest layer of the earth is the________________________________________. 20. The mantle is about ___________________________________________ km thick. 21. What is the composition of the inner core? ________________________________ 22. What is the composition of the outer core? ___________ ...
... 19. The thickest layer of the earth is the________________________________________. 20. The mantle is about ___________________________________________ km thick. 21. What is the composition of the inner core? ________________________________ 22. What is the composition of the outer core? ___________ ...
Chapter 8 Earthquakes and Volcanoes
... Rising magma eventually can lead to an eruption, where magma, solids, and gas are spewed out to form cone-shaped mountains called volcanoes. Lava is when magma flows onto Earth’s surface through a vent, or opening. Lava and other volcanic materials can be expelled through a volcano’s crater. ...
... Rising magma eventually can lead to an eruption, where magma, solids, and gas are spewed out to form cone-shaped mountains called volcanoes. Lava is when magma flows onto Earth’s surface through a vent, or opening. Lava and other volcanic materials can be expelled through a volcano’s crater. ...
1. What is the difference between a compositional layer and a
... The lithosphere is made up of the crust and the rigid, upper portion of the mantle. 12. Describe the relationship between the lithosphere, asthenosphere, and mesosphere and how they are important to understanding plate tectonics. The lithosphere is the crust and the rigid upper mantle, and is divide ...
... The lithosphere is made up of the crust and the rigid, upper portion of the mantle. 12. Describe the relationship between the lithosphere, asthenosphere, and mesosphere and how they are important to understanding plate tectonics. The lithosphere is the crust and the rigid upper mantle, and is divide ...
PART 1: DETERMINING RELATIVE AGE OF ROCKS Think about
... To answer the next series of questions you need to know that: • the ratio of U-235 to Pb-207 in the pegmatite is 1:1 (50% uranium, 50% lead) • the ratio of U-235 to Pb-207 in the granite is 1:3. • the ratio of U-235 to Pb-207 in the the volcanic ash in the siltstone has a ratio of U-235:Pb-207 of 47 ...
... To answer the next series of questions you need to know that: • the ratio of U-235 to Pb-207 in the pegmatite is 1:1 (50% uranium, 50% lead) • the ratio of U-235 to Pb-207 in the granite is 1:3. • the ratio of U-235 to Pb-207 in the the volcanic ash in the siltstone has a ratio of U-235:Pb-207 of 47 ...
PDF File - Tulane University
... The convergent plate margins are the most intense areas of active magmatism above sea level at the present time. Most of world's violent volcanic activity occurs along these zones. In addition, much magmatism also has resulted (and probably is resulting at present) in significant additions to the cr ...
... The convergent plate margins are the most intense areas of active magmatism above sea level at the present time. Most of world's violent volcanic activity occurs along these zones. In addition, much magmatism also has resulted (and probably is resulting at present) in significant additions to the cr ...
Forschungszentrum für marine
... researchers were able to trace the history of the subduction zone layer by layer up to the approximately 50 million year-old rocks at the bottom of the core, which are typical for the birth of a subduction zone. “There has not been such a complete overview yet,” says Dr. Brandl. Brandl and his colle ...
... researchers were able to trace the history of the subduction zone layer by layer up to the approximately 50 million year-old rocks at the bottom of the core, which are typical for the birth of a subduction zone. “There has not been such a complete overview yet,” says Dr. Brandl. Brandl and his colle ...
Plate Boundaries
... Transform boundaries neither create nor consume crust. Rather, two plates move against each other, building up tension, then releasing the tension in a sudden and often violent jerk. ...
... Transform boundaries neither create nor consume crust. Rather, two plates move against each other, building up tension, then releasing the tension in a sudden and often violent jerk. ...
Earthquake Facts
... Earthquakes are caused by the movement of Earth’s outer layer (the crust and a portion of the upper mantle). The outside layer of Earth is split into tectonic plates which are moving slightly due to the movement of magma in the layer below. This causes plates to squeeze together, move apart and slid ...
... Earthquakes are caused by the movement of Earth’s outer layer (the crust and a portion of the upper mantle). The outside layer of Earth is split into tectonic plates which are moving slightly due to the movement of magma in the layer below. This causes plates to squeeze together, move apart and slid ...
activity 1
... In 1915 ............................................. first proposed the theory of .................................................. . He hypothesized that there was a gigantic supercontinent 200 million years ago (...........................) surrounded by a gigantic ocean (....................... ...
... In 1915 ............................................. first proposed the theory of .................................................. . He hypothesized that there was a gigantic supercontinent 200 million years ago (...........................) surrounded by a gigantic ocean (....................... ...
plate tectonics - Canvas by Instructure
... • The lithosphere is thin below mid-ocean ridges and thick below continents. • Earth’s tectonic plates are large pieces of the lithosphere that fit together like the pieces of a giant jigsaw puzzle. • The layer of Earth below the lithosphere, called the asthenosphere, is so hot that it behaves li ...
... • The lithosphere is thin below mid-ocean ridges and thick below continents. • Earth’s tectonic plates are large pieces of the lithosphere that fit together like the pieces of a giant jigsaw puzzle. • The layer of Earth below the lithosphere, called the asthenosphere, is so hot that it behaves li ...
Derry - Geoschol
... Red Carboniferous sandstones at Barony Glen are of Carboniferous age, around 340 million years old. This was a time when the area of Earth’s crust that now forms Ireland lay very close to the Equator. A spectacular scarp, crested by hard volcanic lavas around 60 million years old, rises on the easte ...
... Red Carboniferous sandstones at Barony Glen are of Carboniferous age, around 340 million years old. This was a time when the area of Earth’s crust that now forms Ireland lay very close to the Equator. A spectacular scarp, crested by hard volcanic lavas around 60 million years old, rises on the easte ...
Rocks - SchoolRack
... – Hot, water-rich fluids can move through rock, chemically changing it. Classification of metaphoric rocks—by composition and texture – Foliated texture – minerals grains flatten and line up in parallel layers or bands. – Non foliated texture – mineral grains grow and rearrange but do not form lay ...
... – Hot, water-rich fluids can move through rock, chemically changing it. Classification of metaphoric rocks—by composition and texture – Foliated texture – minerals grains flatten and line up in parallel layers or bands. – Non foliated texture – mineral grains grow and rearrange but do not form lay ...
Large igneous province
A large igneous province (LIP) is an extremely large accumulation of igneous rocks, including liquid rock (intrusive) or volcanic rock formations (extrusive), when hot magma extrudes from inside the Earth and flows out. The source of many or all LIPs is variously attributed to mantle plumes or to processes associated with plate tectonics. Types of LIPs can include large volcanic provinces (LVP), created through flood basalt and large plutonic provinces (LPP). Eleven distinct flood basalt episodes occurred in the past 250 million years, creating volcanic provinces, which coincided with mass extinctions in prehistoric times. Formation depends on a range of factors, such as continental configuration, latitude, volume, rate, duration of eruption, style and setting (continental vs. oceanic), the preexisting climate state, and the biota resilience to change.