Tectonic plates - Hobbs High School
... together by internal forces. At most convergent plate boundaries, the oceanic lithosphere is carried downward under the island or continent. Earthquakes are common here. It also forms an ocean ridge or a mountain range. Convergent ...
... together by internal forces. At most convergent plate boundaries, the oceanic lithosphere is carried downward under the island or continent. Earthquakes are common here. It also forms an ocean ridge or a mountain range. Convergent ...
Classification of Rocks
... far enough back into the history of a metamorphic rock you would find that the first ...
... far enough back into the history of a metamorphic rock you would find that the first ...
The Mount St. Helens Eruption
... • Volcanic gases (water vapor, sulfur dioxide, carbon dioxide) may affect climate patterns − Sulfur dioxide may block insolation, temporarily (up to 1 year) reducing global temperatures ...
... • Volcanic gases (water vapor, sulfur dioxide, carbon dioxide) may affect climate patterns − Sulfur dioxide may block insolation, temporarily (up to 1 year) reducing global temperatures ...
Continental-Drift-and-Seafloor-Spreading
... 3. Glossopteris- plant fossils found on different continents- Plant fossils 4. Tropical plant fossils that were found on an island in Artic Ocean! (Scratches in rocks made by glaciers in South Africa) The continental drift theory was NOT accepted because Wegener could not explain HOW the continents ...
... 3. Glossopteris- plant fossils found on different continents- Plant fossils 4. Tropical plant fossils that were found on an island in Artic Ocean! (Scratches in rocks made by glaciers in South Africa) The continental drift theory was NOT accepted because Wegener could not explain HOW the continents ...
Plate Tectonics Basics – Tutorial Script - FOG
... To understand plate tectonics, we need to look closely at the convecting asthenosphere. The convecting asthenosphere will cause heat to pile up under certain portions of the lithosphere and cold material to sink under other parts. What does that do to the lithosphere? It causes it to break into piec ...
... To understand plate tectonics, we need to look closely at the convecting asthenosphere. The convecting asthenosphere will cause heat to pile up under certain portions of the lithosphere and cold material to sink under other parts. What does that do to the lithosphere? It causes it to break into piec ...
HST_CRF_04_02_03.qxd
... the movement of one tectonic plate away from cause another. ______18. Convergent boundaries commonly exist where 5. Changes in and magma to form. Howbydoes magma behave tectonic plates move6.side side. like air bubbles oceanic in a jar crust of honey? moves away from continental crust. c. crater und ...
... the movement of one tectonic plate away from cause another. ______18. Convergent boundaries commonly exist where 5. Changes in and magma to form. Howbydoes magma behave tectonic plates move6.side side. like air bubbles oceanic in a jar crust of honey? moves away from continental crust. c. crater und ...
Preliminary geochemical data for dolerite dykes and sills of the
... the alkaline dykes are contemporaneous with the tholeiitic magmatism, the alkaline dykes are not considered further in this report. Geochemistry Zr, Nb, and Y concentration data are presented in Fig. 2. Preliminary observations on these data can be summarized as follows: 1. Dolerites in all three ar ...
... the alkaline dykes are contemporaneous with the tholeiitic magmatism, the alkaline dykes are not considered further in this report. Geochemistry Zr, Nb, and Y concentration data are presented in Fig. 2. Preliminary observations on these data can be summarized as follows: 1. Dolerites in all three ar ...
Plate Boundaries
... d. Magma rises forming a magmatic arc with the continent (rather than a island arc). e. Andesitic volcanism occurs f. Beneath the volcanoes are large plutons in thickened crust, seen on land as batholiths when exposed by extensive erosion ...
... d. Magma rises forming a magmatic arc with the continent (rather than a island arc). e. Andesitic volcanism occurs f. Beneath the volcanoes are large plutons in thickened crust, seen on land as batholiths when exposed by extensive erosion ...
Crust
... thin boundary layer between the mantle and the crust z 32-64 km z Discovered by Andrija Mohorvičić z Found seismic waves changed speed at this level z Either different composition or density. ...
... thin boundary layer between the mantle and the crust z 32-64 km z Discovered by Andrija Mohorvičić z Found seismic waves changed speed at this level z Either different composition or density. ...
Plate: a rigid slab of solid lithosphere rock that has defined
... 12. Explain why some volcanoes are more spectacular and destructive than others. Cooler materials of the andesitic magmas, with silica and gases, tend to clog up the vents of volcanies leading to the build up of pressure. When the pressure becomes great enough, a major explosion hurls magma onto the ...
... 12. Explain why some volcanoes are more spectacular and destructive than others. Cooler materials of the andesitic magmas, with silica and gases, tend to clog up the vents of volcanies leading to the build up of pressure. When the pressure becomes great enough, a major explosion hurls magma onto the ...
Take A Journey to… - Mr. Jensen`s Science
... seismograph measures the waves all over the world. • These waves come at different frequencies and are “bent”, which tells scientists that Earth is made of layers that have different thickness and physical properties. ...
... seismograph measures the waves all over the world. • These waves come at different frequencies and are “bent”, which tells scientists that Earth is made of layers that have different thickness and physical properties. ...
August 2008
... Which is a substance that is solid, inorganic, occurs naturally, and exhibits a definite chemical composition and molecular structure? (A) (B) (C) (D) ...
... Which is a substance that is solid, inorganic, occurs naturally, and exhibits a definite chemical composition and molecular structure? (A) (B) (C) (D) ...
Chapter 2. Composition of the continental crust
... Erosion and transport - generally in oxidizing conditions. Diagenesis - in less oxidizing or reducing conditions, it may change the geochemcial behavior (ex., solubility) of some elements. ...
... Erosion and transport - generally in oxidizing conditions. Diagenesis - in less oxidizing or reducing conditions, it may change the geochemcial behavior (ex., solubility) of some elements. ...
CONSTRUCTING A SEA-FLOOR SPREADING MODEL
... The lithosphere is composed of the crust and upper mantle and is broken into large pieces know as plates. The lithospheric plates, carrying both oceanic and continental rock, “float” on the plastic part of the mantle below the lithosphere. Plates move together, separate, and slide past each other cr ...
... The lithosphere is composed of the crust and upper mantle and is broken into large pieces know as plates. The lithospheric plates, carrying both oceanic and continental rock, “float” on the plastic part of the mantle below the lithosphere. Plates move together, separate, and slide past each other cr ...
Layers of the Earth
... • The very center of the earth • The inner core is solid. It is under so much pressure from the layers above that the metal cannot spread out and become liquid. THICKNESS: 1287 kilometers thick – From here to Dallas, TX TEMPERATURE: The inner core is very hot, about 9000 degrees fahrenheit COMPOSITI ...
... • The very center of the earth • The inner core is solid. It is under so much pressure from the layers above that the metal cannot spread out and become liquid. THICKNESS: 1287 kilometers thick – From here to Dallas, TX TEMPERATURE: The inner core is very hot, about 9000 degrees fahrenheit COMPOSITI ...
Chapter Outlines
... rocks may be fine- (e.g., hornfels) or coarse-grained (e.g., marble, quartzite) o Regional metamorphism high pressure is dominant factor, but with increased temperatures also present results in rocks with foliated textures prevalent in the roots of intensely deformed mountain ranges may oc ...
... rocks may be fine- (e.g., hornfels) or coarse-grained (e.g., marble, quartzite) o Regional metamorphism high pressure is dominant factor, but with increased temperatures also present results in rocks with foliated textures prevalent in the roots of intensely deformed mountain ranges may oc ...
Plate Tectonics and Continental Drift
... – Boundaries based on structural features, not land and ocean – Plates are outlined by ridges, trenches and young mountain belts – Plates are not permanent features ...
... – Boundaries based on structural features, not land and ocean – Plates are outlined by ridges, trenches and young mountain belts – Plates are not permanent features ...
test bank for sem 1 final 2014 File
... d. Magma with very low silica content (40%) 20) Which results from volcanic eruptions onto mountainsides covered with ice and snow? a. Lava domes of thick magma b. Damaging lahars of wet volcanic debris c. Igneous rocks formed underground in your community and are now exposed due to erosion. d. Gian ...
... d. Magma with very low silica content (40%) 20) Which results from volcanic eruptions onto mountainsides covered with ice and snow? a. Lava domes of thick magma b. Damaging lahars of wet volcanic debris c. Igneous rocks formed underground in your community and are now exposed due to erosion. d. Gian ...
Scott Foresman Science
... When one plate slides under another, rock melts into magma. Sometimes magma breaks through weak spots in the crust to reach Earth’s surface. The melted rock then flows out as lava. Gases such as water vapor and carbon dioxide can mix with lava. Trapped gases can create pressure and cause a volcano t ...
... When one plate slides under another, rock melts into magma. Sometimes magma breaks through weak spots in the crust to reach Earth’s surface. The melted rock then flows out as lava. Gases such as water vapor and carbon dioxide can mix with lava. Trapped gases can create pressure and cause a volcano t ...
Basalt
Basalt (pronounced /bəˈsɔːlt/, /ˈbæsɒlt/, /ˈbæsɔːlt/, or /ˈbeɪsɔːlt/)is a common extrusive igneous (volcanic) rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of a planet or moon. Flood basalt describes the formation in a series of lava basalt flows.