What are Earthquakes
... You can see the outline of some of the plates. There is an area around the Pacific Ocean where some Earth’s plates meet. It is here that most earthquakes happen.” 5.Guided PracticeThe teacher will also ask the following questions: “What are the different ways in which plates can interact with each o ...
... You can see the outline of some of the plates. There is an area around the Pacific Ocean where some Earth’s plates meet. It is here that most earthquakes happen.” 5.Guided PracticeThe teacher will also ask the following questions: “What are the different ways in which plates can interact with each o ...
GY111 Introductory Geology - University of South Alabama
... • Folded and thrust-faulted by the Alleghenian orogeny at the end of the Paleozoic. • Alleghenian orogeny was the result of the collision between Laurentia and Godwana to form Pangea. • The folding of erosionally resistant and non-resistant rocks produces the valley & ridge topography. • Much of the ...
... • Folded and thrust-faulted by the Alleghenian orogeny at the end of the Paleozoic. • Alleghenian orogeny was the result of the collision between Laurentia and Godwana to form Pangea. • The folding of erosionally resistant and non-resistant rocks produces the valley & ridge topography. • Much of the ...
Quiz-O-Rama Quiz Show Template - PEER
... move together or crust is destroyed as one plate dives under is called a(n) ________________ boundary. Convergent ...
... move together or crust is destroyed as one plate dives under is called a(n) ________________ boundary. Convergent ...
2008-himalayan-nursery-new - geology.byu.edu
... Many propose that seismic quiescence and high uplift rates in eastern-most Timor result from delamination of the oceanic and continental parts of the subducted plate. However, patterns of uplifted coral terrace deformation above the region relate more to active fold growth than long wave-length lith ...
... Many propose that seismic quiescence and high uplift rates in eastern-most Timor result from delamination of the oceanic and continental parts of the subducted plate. However, patterns of uplifted coral terrace deformation above the region relate more to active fold growth than long wave-length lith ...
Origin of Indian Ocean Seamount Province by shallow
... Propagating fault or mantle plume models are generally invoked to explain the origin of age-progressive island/seamount volcanism. As all major faults and fracture zones (for example, Investigator Rise) in the NE Indian Ocean have a N–S rather than E–W strike (Fig. 1), tectonic structures on the sea ...
... Propagating fault or mantle plume models are generally invoked to explain the origin of age-progressive island/seamount volcanism. As all major faults and fracture zones (for example, Investigator Rise) in the NE Indian Ocean have a N–S rather than E–W strike (Fig. 1), tectonic structures on the sea ...
Plate Tectonics Lab Station Activities
... When two plates come together it is known as a convergent boundary. The impact of the two colliding plates buckles the edge of one or both plates up into a rugged mountain range, and sometimes bends the other down into a deep seafloor trench. A chain of volcanoes often forms parallel to the boundary ...
... When two plates come together it is known as a convergent boundary. The impact of the two colliding plates buckles the edge of one or both plates up into a rugged mountain range, and sometimes bends the other down into a deep seafloor trench. A chain of volcanoes often forms parallel to the boundary ...
Examples of Rock Families in the San Francisco Bay Area Yilin Lu
... All three sites (two in Marin County and one in the city of San Francisco) are located on the east of the San Andreas Fault, where the basement complex is Franciscan Complex. In contrast, on the west of the San Andreas Fault, the basement complex is Salinian Complex. Franciscan Complex is comprised ...
... All three sites (two in Marin County and one in the city of San Francisco) are located on the east of the San Andreas Fault, where the basement complex is Franciscan Complex. In contrast, on the west of the San Andreas Fault, the basement complex is Salinian Complex. Franciscan Complex is comprised ...
Bundle 1
... Bundle 1 Question: This bundle is assembled to address the question “what evidence do we have that the Earth is different now than it used to be?” Summary The bundle organizes performance expectations with a focus on helping students build understanding about how the Earth has changed over time. Ins ...
... Bundle 1 Question: This bundle is assembled to address the question “what evidence do we have that the Earth is different now than it used to be?” Summary The bundle organizes performance expectations with a focus on helping students build understanding about how the Earth has changed over time. Ins ...
Section 13
... the plume, its pressure drops and the rock melts. The resulting magma forms volcanoes at the hot spot. ...
... the plume, its pressure drops and the rock melts. The resulting magma forms volcanoes at the hot spot. ...
Sedimentary rock
... divergent plate boundaries. They can develop on the seafloor or on land. • Seafloor spreading produces new oceanic lithosphere. ...
... divergent plate boundaries. They can develop on the seafloor or on land. • Seafloor spreading produces new oceanic lithosphere. ...
Presentazione di PowerPoint - GOCE Italy
... on crust and mantle over three sections (Fig.3): as you can observe, the Benue Trough (3 a) and b)) has been subjected to a higher stretching w.r.t. its eastern arm, Yola rift (Fig.3 c)). This characteristic could also explain the different volumes of magma found beneath these two zones: a smaller s ...
... on crust and mantle over three sections (Fig.3): as you can observe, the Benue Trough (3 a) and b)) has been subjected to a higher stretching w.r.t. its eastern arm, Yola rift (Fig.3 c)). This characteristic could also explain the different volumes of magma found beneath these two zones: a smaller s ...
New Zealand plate boundary models File
... slope. As the crust gets deeper, temperature and pressure increase, causing rock to melt. The melted rock (magma) rises and comes to the surface at volcanoes and thermal areas. The movement of the oceanic crust is very slow (about 5cm a year) and is not smooth. It can become locked with the continen ...
... slope. As the crust gets deeper, temperature and pressure increase, causing rock to melt. The melted rock (magma) rises and comes to the surface at volcanoes and thermal areas. The movement of the oceanic crust is very slow (about 5cm a year) and is not smooth. It can become locked with the continen ...
Geological Society of America Bulletin
... and Carr (1973), the descending lithosphere is broken by tear faults, propagated at the trench, that divide the slab into discrete segments, typically less than 300 km across. Each segment of oceanic lithosphere descends into the mantle with a different strike and dip, producing offsets in features ...
... and Carr (1973), the descending lithosphere is broken by tear faults, propagated at the trench, that divide the slab into discrete segments, typically less than 300 km across. Each segment of oceanic lithosphere descends into the mantle with a different strike and dip, producing offsets in features ...
Earth Shakes, Rattles, and Rolls
... •Formed when molten rock, or magma deep within the earth, erupts, and piles upon the surface •Made of basalt and rhyolite. •Takes place where two of the earth's tectonic plates collide. ...
... •Formed when molten rock, or magma deep within the earth, erupts, and piles upon the surface •Made of basalt and rhyolite. •Takes place where two of the earth's tectonic plates collide. ...
Extremely thin crust in the Indian Ocean possibly resulting from
... (Singh et al. 2007) but no other deep subhorizontal reflections are observed that could be interpreted as reflections from the Moho. Fig. 4 shows the seismic image along orthogonal profile WG1 (Singh et al. 2008) with respect to the blow-up of the image along profile WG3 with a 3-D perspective. Alth ...
... (Singh et al. 2007) but no other deep subhorizontal reflections are observed that could be interpreted as reflections from the Moho. Fig. 4 shows the seismic image along orthogonal profile WG1 (Singh et al. 2008) with respect to the blow-up of the image along profile WG3 with a 3-D perspective. Alth ...
Ocean Regions Day 2
... Key Points • The three major regions of the ocean floor are the continental margins, the ocean basin floor and the mid-ocean ridges. • The gently sloping submerged surface extending from the shoreline toward the deep ocean is called the continental shelf. • At the continental margin in the Pacific ...
... Key Points • The three major regions of the ocean floor are the continental margins, the ocean basin floor and the mid-ocean ridges. • The gently sloping submerged surface extending from the shoreline toward the deep ocean is called the continental shelf. • At the continental margin in the Pacific ...
Manual(Exp.2) - Manuals for PHYSLAB
... Electric charges are the sources of electric phenomena and a characteristic of a particle like the mass. An electric phenomenon means the interaction (force) between charge and charge. Coulomb's law is the quantitative relation between the electric force and the charges q1 and q2, given by F ∝ q1q2 ...
... Electric charges are the sources of electric phenomena and a characteristic of a particle like the mass. An electric phenomenon means the interaction (force) between charge and charge. Coulomb's law is the quantitative relation between the electric force and the charges q1 and q2, given by F ∝ q1q2 ...
THEORETICAL ASPECTS OF MAGMA GENERATION, ASCENT
... gas bubble formation, and this could aid dikes in penetrating much further into the overlying rocks, thus overcoming density traps to some extent [1]. A magma body stalled at a density trap may also acquire an excess pressure due to chemical evolution, enabling it to migrate to shallower depths, if ...
... gas bubble formation, and this could aid dikes in penetrating much further into the overlying rocks, thus overcoming density traps to some extent [1]. A magma body stalled at a density trap may also acquire an excess pressure due to chemical evolution, enabling it to migrate to shallower depths, if ...
Earth: Portrait of a Planet 3rd edition
... Earth’s outer shell is broken into rigid plates that move. Moving plates change the face of planet Earth. ...
... Earth’s outer shell is broken into rigid plates that move. Moving plates change the face of planet Earth. ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.