Abstract template - Institute for Planetary Materials
... cases, aliquots of acid residues were combusted at up to 800oC. The objective of precombustion was to further concentrate Os in the highly-refractory SiC present in the acid residues. Os isotopes were measured by a TIMS (ThermoElectron Triton) at the Carnegie Institution of Washington with negative ...
... cases, aliquots of acid residues were combusted at up to 800oC. The objective of precombustion was to further concentrate Os in the highly-refractory SiC present in the acid residues. Os isotopes were measured by a TIMS (ThermoElectron Triton) at the Carnegie Institution of Washington with negative ...
Features of Plate Tectonics
... collides with a continental plate, the heavy oceanic plate will dive under the lighter continental plate in an event known as subduction. A deep underwater valley, called a trench, forms where the plates make contact. As the edge of a tectonic plate subducts, it pulls the rest of the plate with it. ...
... collides with a continental plate, the heavy oceanic plate will dive under the lighter continental plate in an event known as subduction. A deep underwater valley, called a trench, forms where the plates make contact. As the edge of a tectonic plate subducts, it pulls the rest of the plate with it. ...
Continental Arcs
... c. Shaded areas in (a) indicate zones of melt generation. Figures from Winter (2001) ...
... c. Shaded areas in (a) indicate zones of melt generation. Figures from Winter (2001) ...
1 - Lyndhurst School District
... What determines which plate will be on top? ____________________________________ The plate that is more dense will (sink/rise). What is more dense, oceanic or continental crust? ____________________________________ Which one will sink? ____________________________________ What happens to the mantle ...
... What determines which plate will be on top? ____________________________________ The plate that is more dense will (sink/rise). What is more dense, oceanic or continental crust? ____________________________________ Which one will sink? ____________________________________ What happens to the mantle ...
South American Plate Relationships
... z Pindell et al, 1988. A plate-kinematic framework for models of Caribbean evolution. Tectonophysics 155 (1-4) 121-138. z Russo & Speed, 1992. Oblique collision and tectonic wedging of the South American continent and Carribean Terranes. Geology 20. ...
... z Pindell et al, 1988. A plate-kinematic framework for models of Caribbean evolution. Tectonophysics 155 (1-4) 121-138. z Russo & Speed, 1992. Oblique collision and tectonic wedging of the South American continent and Carribean Terranes. Geology 20. ...
snack_tectonics_lab_lt_2015 Power Point
... Earth layers or processes of plate tectonics. Use these words: transform plate boundary, asthenosphere, continental crust ...
... Earth layers or processes of plate tectonics. Use these words: transform plate boundary, asthenosphere, continental crust ...
Theory of Plate Tectonics
... boundary can also create a deep-sea trench. At the subduction zone, the temperature of the rocks rises and causes them to melt, which forms magma that is forced upwards to create volcanoes. ...
... boundary can also create a deep-sea trench. At the subduction zone, the temperature of the rocks rises and causes them to melt, which forms magma that is forced upwards to create volcanoes. ...
Earth`s Tectonic Plates – Lesson Plan-WA
... divergent –where plates move apart, convergent – where plates come together and transform – where plates slide past each other. At divergent plate boundaries, mid-oceanic ridges and rises and rift valleys are created, along with new oceanic crust. There are three ways that plates can collide at conv ...
... divergent –where plates move apart, convergent – where plates come together and transform – where plates slide past each other. At divergent plate boundaries, mid-oceanic ridges and rises and rift valleys are created, along with new oceanic crust. There are three ways that plates can collide at conv ...
Class 9 - Earth and Atmospheric Sciences
... Tectonic Plates and Their Boundaries — The lithosphere is divided into about a dozen major tectonic plates defined by boundaries of three types: spreading ridges, subduction zones, and transform faults, as shown in accompanying diagrams. The Earth’s Internal (Endogenic) Heat Engine What’s A Heat Eng ...
... Tectonic Plates and Their Boundaries — The lithosphere is divided into about a dozen major tectonic plates defined by boundaries of three types: spreading ridges, subduction zones, and transform faults, as shown in accompanying diagrams. The Earth’s Internal (Endogenic) Heat Engine What’s A Heat Eng ...
MS Word - Lehigh`s Environmental Initiative
... http://www.ei.lehigh.edu/learners/tectonics Read all instructions on your handout and answer each question in complete sentences. 1. What major plate lies west of the North American plate? ...
... http://www.ei.lehigh.edu/learners/tectonics Read all instructions on your handout and answer each question in complete sentences. 1. What major plate lies west of the North American plate? ...
Geology :: 7. Plate interiors
... result of the new geophysical research and interpretations, the theory of plate tectonics was established by the end of the late 1960s. This theory put all former geological interpretations on a new foundation. The elaboration of the theory was carried out by teamwork and several scientists took par ...
... result of the new geophysical research and interpretations, the theory of plate tectonics was established by the end of the late 1960s. This theory put all former geological interpretations on a new foundation. The elaboration of the theory was carried out by teamwork and several scientists took par ...
Volcanoes and Igneous Activity Earth - Chapter 4
... Types of convergent boundaries • Continental-continental convergence • Continued subduction can bring two continents together • Less dense, buoyant continental lithosphere does not subduct • Resulting collision between two continental blocks produces mountains (Himalayas, Alps, Appalachians) ...
... Types of convergent boundaries • Continental-continental convergence • Continued subduction can bring two continents together • Less dense, buoyant continental lithosphere does not subduct • Resulting collision between two continental blocks produces mountains (Himalayas, Alps, Appalachians) ...
and at the subduction zones Lesser Antilles Subduction Zone
... •surrounds the core •density of 3.3-5.7gm/cm³ •three distinct zones The Crust •oceanic - 3 gm/cm³ •continental - 2.7 gm/cm³ Plate Tectonic Theory explains the interactions of these zones ...
... •surrounds the core •density of 3.3-5.7gm/cm³ •three distinct zones The Crust •oceanic - 3 gm/cm³ •continental - 2.7 gm/cm³ Plate Tectonic Theory explains the interactions of these zones ...
GEOFLUID PROCESSES IN SUBDUCTION ZONES AND MANTLE
... C with extremely low blanks. In some cases, aliquots of acid residues were combusted at up to 800oC. The objective of precombustion was to further concentrate Os in the highly-refractory SiC present in the acid residues. Os isotopes were measured by a TIMS (ThermoElectron Triton) at the Carnegie Ins ...
... C with extremely low blanks. In some cases, aliquots of acid residues were combusted at up to 800oC. The objective of precombustion was to further concentrate Os in the highly-refractory SiC present in the acid residues. Os isotopes were measured by a TIMS (ThermoElectron Triton) at the Carnegie Ins ...
Evolution of the Earth
... type of a distant continent. – Ex: Rocks of Northern Newfoundland do not match North America, but are similar in structure and composition to those of Scotland. This suggests that a small bit of what is now Scotland became attached to NA when the two split. ...
... type of a distant continent. – Ex: Rocks of Northern Newfoundland do not match North America, but are similar in structure and composition to those of Scotland. This suggests that a small bit of what is now Scotland became attached to NA when the two split. ...
PLATE TECTONICS - Part II
... mantle wedge in subduction zone. 3) Magmas are rich in silica and water and produce infrequent, massive, and violent volcanic eruptions 4) Buoyant crustal terranes attached to ...
... mantle wedge in subduction zone. 3) Magmas are rich in silica and water and produce infrequent, massive, and violent volcanic eruptions 4) Buoyant crustal terranes attached to ...
Snack Tectonics
... B. Lay the two squares against each other on the frosting on the plate. C. To model the result of diverging oceanic plates, gently press down as you slowly push the two squares in opposite directions, away from each other. The opening between the crackers need not be greater than one centimeter. Pre ...
... B. Lay the two squares against each other on the frosting on the plate. C. To model the result of diverging oceanic plates, gently press down as you slowly push the two squares in opposite directions, away from each other. The opening between the crackers need not be greater than one centimeter. Pre ...
ps 2-7-08 - elyceum-beta
... • More dense ocean crust is push beneath Continental crust When it is pushed deep enough it begins to melt The melted material is pushed upward, supplies material for volcanos ...
... • More dense ocean crust is push beneath Continental crust When it is pushed deep enough it begins to melt The melted material is pushed upward, supplies material for volcanos ...
Ocean basins
... quickly hardening into new plate material that pushes tectonic plates further apart. Mid-ocean ridges are more than ...
... quickly hardening into new plate material that pushes tectonic plates further apart. Mid-ocean ridges are more than ...
A. Compression - mccullochscience
... Directions: Match each term at the left with the correct definition or description at the right. Write your answer choice on the appropriate line. ____ 12.) Lithosphere ...
... Directions: Match each term at the left with the correct definition or description at the right. Write your answer choice on the appropriate line. ____ 12.) Lithosphere ...
volcanoes
... • A hot spot is an area where magma from deep within the mantle melts through the crust like a blow torch. • Hot spots often lie in the middle of continental or oceanic plates far from any plate boundaries ...
... • A hot spot is an area where magma from deep within the mantle melts through the crust like a blow torch. • Hot spots often lie in the middle of continental or oceanic plates far from any plate boundaries ...
Oceanic trench
The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They are also the deepest parts of the ocean floor. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries, along which lithospheric plates move towards each other at rates that vary from a few mm to over ten cm per year. A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. Trenches are generally parallel to a volcanic island arc, and about 200 km (120 mi) from a volcanic arc. Oceanic trenches typically extend 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic floor. The greatest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench, at a depth of 11,034 m (36,201 ft) below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km2/yr.