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  Encyclopedia of Keywords > Plate > Tectonic   Michael Charnine

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    This Review contains major "Tectonic"- related terms, short phrases and links grouped together in the form of Encyclopedia article.


  1. Tectonic is first expressed during gastrulation stages in the ventral node (Fig. (Web site)
  2. Plate tectonic is a theory of geology that has been developed to explain the witnessed evidence for the large scale motions for the earths lithosphere.
  3. Figure 1. Tectonic is expressed in domains of Hh signaling, and is essential for embryonic development. (Web site)

Mid-Oceanic Ridges

  1. The hydrothermal vents are associated with parts of the ocean floor that exhibit high levels of tectonic activity such as mid-oceanic ridges.

Tectonic Deformation

  1. Figure 4. Reconstruction of Sabah during Early Miocene shows period major tectonic deformation in Sabah.
  2. Rock magnetism is subject to modification by later magnetism, weathering, metamorphism, tectonic deformation, and chemical changes.

Several Tectonic Plates

  1. The Pacific Northwest lies near the boundaries of several tectonic plates.


  1. Subduction (Tectonic) Process of plate tectonics where one lithospheric plate is pushed below another into the asthenosphere.
  2. Plate Boundaries - Tectonic plates interact in various ways as they move across the asthenosphere, producing volcanoes, earthquakes and mountain systems.
  3. As a tectonic plate glides over the asthenosphere, the continents and oceans move with it.

African Tectonic Plate

  1. The East African Rift came into being approximately 40 million years ago as the African tectonic plate began to split. (Web site)
  2. The volcanoes of the Calabrian arc are associated with the subduction of the African tectonic plate under the Eurasian plate. (Web site)
  3. The archipelago lies on the edge of the African tectonic plate where it meets the Eurasian plate.

African Plate

  1. It runs along the boundary of two tectonic plates, the African Plate on the west and the Arabian Plate on the east. (Web site)
  2. Recent tectonic activity in the East African Rift Valley has created vast fissures where the African Plate is being split into two parts.
  3. The Somali Plate or Somalian Plate is a tectonic plate that is being formed as the African Plate is splitting along the East African Rift. (Web site)

Tectonic Evolution

  1. The asymmetric profile across a trench reflects fundamental differences in materials and tectonic evolution. (Web site)
  2. External links Geophysical research and the geology of the Alps The tectonic evolution of the western and central Alps and their forelands, website of prof. (Web site)
  3. The tectonic evolution of the Caledonides began with the break-up (750-600 Ma) of a late Precambrian supercontinent, Rodinia.

Tectonic Events

  1. In contrast to the Earth, no major lunar mountains are believed to have formed as a result of tectonic events.
  2. The mission of this program element is to understand the geobiological impacts of magmatic and tectonic events along the global mid-ocean ridge system.
  3. It has a typical history of tectonic events that are representative of volcanic passive margins such as rifting, breakup and seafloor spreading. (Web site)

Three Tectonic Plates

  1. A triple junction is the point where the boundaries of three tectonic plates meet.
  2. Volcanoes are generally found where two to three tectonic plates pull apart or are coming together. (Web site)
  3. Afar stands at the junction of three tectonic plates, which form the outer shell of the Earth and meet at unstable fault lines. (Web site)

North American Tectonic Plate

  1. The North American tectonic plate is subducting the Caribbean tectonic plate to the east of this ridge and under the Lesser Antilles island arc.

Oceanic Tectonic Plates

  1. The crustal portions of oceanic tectonic plates are comprised predominantly of basalt, produced from upwelling peridotite in the mantle below ocean ridges. (Web site)

Oceanic Tectonic Plate

  1. An island arc is a type of archipelago formed by plate tectonics as one oceanic tectonic plate subducts under another and produces magma.
  2. Generally, they are formed as an oceanic tectonic plate subducts under another tectonic plate and produces magma at depth under the over-riding plate.
  3. Animation of seismic cycle, showing subduction of oceanic tectonic plate and resulting deformation of upper continental tectonic plate.

Continental Tectonic Plate Covering

  1. The African Plate is a continental tectonic plate covering the continent of Africa and extending westward to the Mid-Atlantic Ridge. (Web site)

Tectonic Settings

  1. The tectonic settings of New Zealand are discussed here with main emphasis on the Alpine Fault, the South Island Faults and volcanoes.
  2. In general, they conclude that different sources participate in variable degrees according to the tectonic settings of the rocks and the ore deposits. (Web site)

Tectonic Setting

  1. Hess wrote about the tectonic significance of these rocks nearly 50 years ago, but the tectonic setting of these enigmatic rocks is still debated.
  2. The map poster also includes descriptions and illustrations of the tectonic setting of Alaska, recent notable eruptions, volcano hazards, and a glossary.
  3. The edges of the continents - the continental margins can be classified according to their tectonic setting.

Indian Tectonic Plates

  1. In the latter, Europe and Asia are parts of the Eurasian plate, which excludes the Arabian and Indian tectonic plates.
  2. Afghanistan sits astride the collision zone between the Eurasian and Indian tectonic plates and its geology is complex.

Indian Tectonic Plate

  1. The Indian subcontinent is a large section of the Asian continent consisting of the land lying substantially on the Indian tectonic plate.

Tectonic Uplift

  1. Tectonic uplift is a geological process most often caused by plate tectonics which increases elevation.
  2. We thus infer that the propagation of this fault triggered tectonic uplift of distant, narrow ranges.
  3. Uplifted sea floor at Cape Cleare, Montague Island, Prince William Sound, in the area of greatest recorded tectonic uplift on land (33 feet). (Web site)

Tectonic Plate Movements

  1. This in turn is what causes tectonic plate movements in the upper lithosphere that cause continents to form.

Tectonic Plate Movement

  1. The vast majority are located near areas of tectonic plate movement, known as ocean ridges.
  2. There are four types of linear chain of volcanoes in the direction of the tectonic plate movement.
  3. Tectonic plate movement A range of mountains (often elongated) may be caused by tectonic plate interactions.

Tectonic Plate Covering

  1. The African Plate is a tectonic plate covering the continent of Africa and extending westward to the Mid-Atlantic Ridge.

Small Tectonic Plate

  1. The Adriatic or Apulian Plate is a small tectonic plate that broke away from the African plate along a large transform fault in the Cretaceous period.
  2. The Nazca plate is a small tectonic plate that lies between South America and the pacific plate, and is rapidly disappearing.

Plate Tectonic Processes

  1. Rocks can also be sunk down into the lower layers of the earth by plate tectonic processes.
  2. These fold belts have formed over hundreds of millions of years by plate tectonic processes. (Web site)
  3. Features of the sea floor that are related to plate tectonic processes include mid-ocean ridges and trenches.

Ancient Tectonic Plate

  1. The Cimmerian Plate is an ancient tectonic plate that comprises parts of present-day Anatolia, Iran, Afghanistan, Tibet, Indochina and Malaya regions.
  2. The Kula Plate is an ancient tectonic plate that used to subduct under Alaska during the Triassic period.
  3. The Izanagi Plate was an ancient tectonic plate, which began subducting beneath the Okhotsk section of the North American Plate during 130 - 100 Ma.


  1. Deep-sea trenches are part of a system of tectonic processes termed subduction. (Web site)
  2. Structural dislocation of this magnitude always leaves me a bit humble as I consider the immense power of the tectonic processes which shape our planet.
  3. Lake Toba is a large caldera formed by volcanic and tectonic processes, and was the site of the world's most recent supervolcano 74,000 years ago.

Tectonic Processes

  1. Intrusive igneous rocks can be brought to the surface of the Earth by denudation and by a variety of tectonic processes. (Web site)
  2. This term encompasses the tectonic processes of large-scale uplift and movement of a portion of the crust of the Earth.
  3. Also like the Keewenaw Rift, the Rio Grande Rift stopped growing after a few million years, as the tectonic processes ceased pulling the continent apart. (Web site)

Lithospheric Plates

  1. Historically, the lithospheric plates (or tectonic plates) move at a rate of about 14 to 17 millimeters per year.

Plate Tectonic Theory

  1. The lithosphere is the "plate" of the plate tectonic theory. (Web site)
  2. Plate tectonic theory arose out of two separate geological observations: seafloor spreading and continental drift. (Web site)
  3. According to plate tectonic theory, the lithosphere is divided into rigid plates that interact with one another at their boundaries.

Subduction Zones

  1. Volcanoes and earthquakes occur at tectonic subduction zones around the "Ring of Fire" or sit above mantle plumes. (Web site)
  2. Most of the Earth's volcanoes are located at or near tectonic subduction zones and the mid-ocean ridges.
  3. Tectonic plates are generated at mid-oceanic ridges and sink at their edges in subduction zones or mountain collisions.

Tectonic Forces

  1. All of the rock types described above can be returned to the Earth's interior by tectonic forces at areas known as subduction zones. (Web site)
  2. Tectonic forces created a north-south rift in the super-continent, separating it into two new continents, Laurasia and Gondwanaland.
  3. Most movement occurs along narrow zones between plates where the results of plate - tectonic forces are most evident.

Mountain Chains

  1. The passive margins are relatively free of mountain chains and tectonic activity.

Tectonic Plate Boundaries

  1. Types of plate boundaries File:Tectonic plate boundaries.png Three types of plate boundary.
  2. These areas usually form along tectonic plate boundaries at depths of 10-50 km.
  3. Scientists have long believed that Venus' crust, lacking water to help lubricate tectonic plate boundaries, is too rigid for active plate tectonics.

Specific Set

  1. The most important message of the plate tectonic rock cycle is that each and every rock forms only under a specific set of tectonic conditions. (Web site)


  1. Or in terms of geologic processes, each magma type is generated by a specific set of tectonic processes. (Web site)
  2. Tectonic and glaciogenic forces controlling this observed distribution have previously been discussed in terms of the Antarctic continent only. (Web site)
  3. There are three main types of tectonic plate boundaries, described in terms of the way that tectonic plates move relative to each other. (Web site)


  1. These changes all suggest that extraction of continental crust by plate tectonic processes was progressively depleting the mantle from 3.6 Ga onwards. (Web site)


  1. The crust is divided into tectonic plates that move carrying continents along with them (Figure 3).
  2. On the other end of the conveyor, oceanic crust is swept down into subduction zones at the peripheries of tectonic plates (Figure 4).
  3. Figure 8 [84] The Alay tectonic zone is separated from the Southern Fergana zone by the Uzgen-Sanzar thrust fault of Permian age.


  1. Closely examine the map below, which shows the 15 major tectonic plates.
  2. The tectonic plates of the world were mapped in the second half of the 20th century.This image shows the direction in which the plates are moving.


  1. Fig. 8. Schematic summary of the tectonic events within the different regions of eastern Gondwana discussed in this paper.
  2. In FIG. 3 is illustrated a re-entry tower apparatus 31 that is centered over a borehole 33 made in tectonic plate 11 at the subduction zone 17. (Web site)


  1. Science Probe II, Chapter 13, section 13.3 contains a profile of Robert Dietz, one of the scientists involved in the formulation of plate tectonic theory.
  2. Later tectonic movement raised a section of this ancient seabed into a great plateau which we now know as the Burren. (Web site)


  1. Fig. 1. Map showing the tectonic and geological setting of Galunggung volcano (modified from Katili and Sudradjat, 1984). (Web site)
  2. The word "passive" means that the coast line or the edge of the continent is not greatly modified by tectonic processes.


  1. Tectonic plate boundaries tend to be sites of relatively intense geologic activity.


  1. This will allow land vegetation to reappear each time the level of carbon dioxide rises due to tectonic activity and animal life.


  1. Frutos, J. and Oyarzn, J. 1975. Tectonic and geochemical evidence concerning the genesis of El Laco magnetite lava flows deposits, Chile. (Web site)

Puerto Rico

  1. Puerto Rico lies at the boundary between the Caribbean and North American plates and is being deformed by the tectonic stresses caused by their interaction. (Web site)


  1. Tectonic activity is the shifting of a planet's (or moon's) surface because of changes deep inside the body. (Web site)
  2. Tectonic plates across the globe are constantly shifting - though slowly, usually by a few centimetres a year - with the magma beneath the crust. (Web site)


  1. These mountain ranges are where tectonic plates move apart along a divergent boundary as magma rises from the Earth's mantle.
  2. Collision leads to orogenesis, or the creation of mountain ranges, one of the most dramatic effects of tectonic forces.


  1. Plate
  2. Encyclopedia of Keywords > Time > Events > Earthquakes
  3. Seismic
  4. Margins
  5. Places > Earth > Geology > Tectonics

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  Originally created: April 04, 2011.
  Links checked: July 21, 2013.
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