Plate Tectonics Part 1
... then allows magma and gases to escape • How do they form? – Thinning crust at divergent plates (mostly under sea) – Convergent plates (mostly land) ...
... then allows magma and gases to escape • How do they form? – Thinning crust at divergent plates (mostly under sea) – Convergent plates (mostly land) ...
File
... 1. What key evidence did Alfred Wegener use to support his hypothesis of continental drift? The “jigsaw puzzle” fit of continents at their margins, similar rock types on separated continents, and data from paleoclimatology and paleontology data. Pg.639 p1 & fig.27.1; pg.640 fig.27.3 & p2; Pg.639 p2 ...
... 1. What key evidence did Alfred Wegener use to support his hypothesis of continental drift? The “jigsaw puzzle” fit of continents at their margins, similar rock types on separated continents, and data from paleoclimatology and paleontology data. Pg.639 p1 & fig.27.1; pg.640 fig.27.3 & p2; Pg.639 p2 ...
Text from Narration doc
... Lithosphere is neither created nor destroyed along transform boundaries which connect segments of spreading oceanic ridges and other plate boundaries. Transform boundaries can also cut across continents as the San Andreas Fault Zone does in California where it connects the East Pacific Rise to the C ...
... Lithosphere is neither created nor destroyed along transform boundaries which connect segments of spreading oceanic ridges and other plate boundaries. Transform boundaries can also cut across continents as the San Andreas Fault Zone does in California where it connects the East Pacific Rise to the C ...
Activities • Walter Geibert (Alfred-Wegener Institute, Bremerhaven
... processes in the Amazon estuary and its impact on trace metal fluxes into the Atlantic, was not approved but will be resubmitted in September 2016 (to be suggested as a GEOTRACES process study). ...
... processes in the Amazon estuary and its impact on trace metal fluxes into the Atlantic, was not approved but will be resubmitted in September 2016 (to be suggested as a GEOTRACES process study). ...
Document
... o Principle of superposition- any give rock layer is older than the layers above, and younger than the layers below Some rock layers have not been preserved because of erosion or natural disasters ...
... o Principle of superposition- any give rock layer is older than the layers above, and younger than the layers below Some rock layers have not been preserved because of erosion or natural disasters ...
Vocabulary Review Summary of Key Ideas
... 23.2 A continental margin (the underwater edge of a continent) can be active or passive, depending where it lies in relation to a subduction zone or ...
... 23.2 A continental margin (the underwater edge of a continent) can be active or passive, depending where it lies in relation to a subduction zone or ...
Wegener—Continental Drift
... B. Convection currents worked in the past the same way they work now C. The world's climate has changed a lot over time D. Carbon dating is an accurate way to measure age ...
... B. Convection currents worked in the past the same way they work now C. The world's climate has changed a lot over time D. Carbon dating is an accurate way to measure age ...
Evidence for Plate Tectonics
... Magnetic Patterns • Basalt rock on the ocean floor records the earths magnetic field when it hardens • The pattern of magnetic stripes is identical on both sides of a mid-ocean ridge ...
... Magnetic Patterns • Basalt rock on the ocean floor records the earths magnetic field when it hardens • The pattern of magnetic stripes is identical on both sides of a mid-ocean ridge ...
Theory of Plate Tectonics
... Theory of continental drift – Continents connected and moving apart o Not true Continental shelf debunked continental drift theory Fossils of the same organisms in Africa and South America were discovered This means that the continents were once joined The climates of the past were the same Plate te ...
... Theory of continental drift – Continents connected and moving apart o Not true Continental shelf debunked continental drift theory Fossils of the same organisms in Africa and South America were discovered This means that the continents were once joined The climates of the past were the same Plate te ...
Empirical is the
... multiple! Maybe THREE!) you also have to get to the molecular formula by doing the molecular mass! 79. Write a balanced equation that describes each of the following Donʼt forget your seven diatomics! and remember to balance Charges! a. Iron metal reacts with oxygen to form rust [iron (II) oxide] b. ...
... multiple! Maybe THREE!) you also have to get to the molecular formula by doing the molecular mass! 79. Write a balanced equation that describes each of the following Donʼt forget your seven diatomics! and remember to balance Charges! a. Iron metal reacts with oxygen to form rust [iron (II) oxide] b. ...
Seafloor Spreading Notes - mrs. villarreal`s orange team science
... • EQ#2: What is convection and what evidence is there of convection on the surface of the Earth? • Alfred Wegener • Theory of Continental Drift • Evidence for Continental Drift (Fossils, landforms, climate) • Theory rejected in early 1900’s • In 1950’s, scientists discovered mid-ocean ridge (ocean b ...
... • EQ#2: What is convection and what evidence is there of convection on the surface of the Earth? • Alfred Wegener • Theory of Continental Drift • Evidence for Continental Drift (Fossils, landforms, climate) • Theory rejected in early 1900’s • In 1950’s, scientists discovered mid-ocean ridge (ocean b ...
Ch 1A Study Guide side 1
... 3) A plate boundary is where ____ plates move together. A __________________ boundary occurs where plates MOVE APART. Most of these boundaries are found in the ____________. A _______________boundary occurs where plates push together. A ___________ boundary occurs where 2 plates scrape past each oth ...
... 3) A plate boundary is where ____ plates move together. A __________________ boundary occurs where plates MOVE APART. Most of these boundaries are found in the ____________. A _______________boundary occurs where plates push together. A ___________ boundary occurs where 2 plates scrape past each oth ...
Continental Drift
... and oceanographic research showed that the ocean basins were geologically ...
... and oceanographic research showed that the ocean basins were geologically ...
Layers of the Ocean - hrsbstaff.ednet.ns.ca
... Mid-Atlantic ridge: is a mid-ocean ridge, a divergent tectonic plate boundary located along the floor of the Atlantic Ocean, and the longest mountain range in the world. Mantle: the layer of the earth between the crust and the core Contiental shelf: The area of sea around a land mass where the depth ...
... Mid-Atlantic ridge: is a mid-ocean ridge, a divergent tectonic plate boundary located along the floor of the Atlantic Ocean, and the longest mountain range in the world. Mantle: the layer of the earth between the crust and the core Contiental shelf: The area of sea around a land mass where the depth ...
ES 104 key points about tectonics 1. The oceanic ridge system is the
... ii. As it is subjected to less pressure, it partially melts 1. Most silicic components melt first resulting in a magma more rich in silica than the mantle it came from 2. But it is magma that is low in silica compared to other magma a. Low silica magma makes rock that is dense: basalt b. Low silica ...
... ii. As it is subjected to less pressure, it partially melts 1. Most silicic components melt first resulting in a magma more rich in silica than the mantle it came from 2. But it is magma that is low in silica compared to other magma a. Low silica magma makes rock that is dense: basalt b. Low silica ...
APES Lesson 76 (5th Ed) - The Oceans - science-b
... Ocean currents affect Earth’s climate Interrupting the thermohaline circulation of the NADW could trigger rapid climate change Melting ice from Greenland will run into the North Atlantic, making surface waters less salty, less dense Could stop NADW formation and shut down the northward flow o ...
... Ocean currents affect Earth’s climate Interrupting the thermohaline circulation of the NADW could trigger rapid climate change Melting ice from Greenland will run into the North Atlantic, making surface waters less salty, less dense Could stop NADW formation and shut down the northward flow o ...
Seafloor Spreading.pps
... Zones where lithospheric plates move toward one another and where oceanic lithosphere is consumed back into the mantle. Because oceanic lithosphere is destroyed, convergent plate boundaries are commonly called “destructive” plate boundaries This process ensures that the Earth retains a constant volu ...
... Zones where lithospheric plates move toward one another and where oceanic lithosphere is consumed back into the mantle. Because oceanic lithosphere is destroyed, convergent plate boundaries are commonly called “destructive” plate boundaries This process ensures that the Earth retains a constant volu ...
Lithospheric Plates
... Zones where lithospheric plates move toward one another and where oceanic lithosphere is consumed back into the mantle. Because oceanic lithosphere is destroyed, convergent plate boundaries are commonly called “destructive” plate boundaries This process ensures that the Earth retains a constant volu ...
... Zones where lithospheric plates move toward one another and where oceanic lithosphere is consumed back into the mantle. Because oceanic lithosphere is destroyed, convergent plate boundaries are commonly called “destructive” plate boundaries This process ensures that the Earth retains a constant volu ...
Plate Tectonics - Choteau Schools
... – The crust and upper mantle (lithosphere) of the earth are broken into sections called plates. – These plates sit on top of the plastic (gooey) part of the mantle (asthenosphere). – These plates can move apart, converge, or slide past one another through time. ...
... – The crust and upper mantle (lithosphere) of the earth are broken into sections called plates. – These plates sit on top of the plastic (gooey) part of the mantle (asthenosphere). – These plates can move apart, converge, or slide past one another through time. ...
Anoxic event
Oceanic anoxic events or anoxic events (Anoxia conditions) refer to intervals in the Earth's past where portions of oceans become depleted in oxygen (O2) at depths over a large geographic area. During some of these events, euxinia develops - euxinia refers to anoxic waters that contain H2S hydrogen sulfide. Although anoxic events have not happened for millions of years, the geological record shows that they happened many times in the past. Anoxic events coincide with several mass extinctions and may contribute to these events. These mass extinctions include some that geobiologists use as time markers in biostratigraphic dating. It is believed oceanic anoxic events are strongly linked to slowing of ocean circulation, climatic warming and elevated levels of greenhouse gases. Enhanced volcanism (through the release of CO2 and other greenhouse gases) is the proposed central external trigger for the development of these events.