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High seismic attenuation at a mid-ocean ridge reveals the distribution of deep melt [PDF]
Science Advances, 2017 Zachary Eilon, Geoffrey A Abers
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Scientific American, 1990
The Mid-Ocean Ridge girdles the earth like the seam of a baseball. For more than 75,000 kilometers, this submerged range of razorback mountains--many higher than the greatest peaks on land--marks the restless boundary between continental plates. An analysis of this huge structure reveals a fascinating picture of how it is created by magma welling up as
Kenneth C. Macdonald, Paul J. Fox
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The Mid-Ocean Ridge girdles the earth like the seam of a baseball. For more than 75,000 kilometers, this submerged range of razorback mountains--many higher than the greatest peaks on land--marks the restless boundary between continental plates. An analysis of this huge structure reveals a fascinating picture of how it is created by magma welling up as
Kenneth C. Macdonald, Paul J. Fox
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2010
Mid-ocean ridges are the oceanic counterparts of continental graben structures. Both are zones of extension although mid-ocean ridges have substantially higher spreading rates and also mark plate boundaries where new oceanic crust and lithosphere are formed.
Wolfgang Frisch +2 more
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Mid-ocean ridges are the oceanic counterparts of continental graben structures. Both are zones of extension although mid-ocean ridges have substantially higher spreading rates and also mark plate boundaries where new oceanic crust and lithosphere are formed.
Wolfgang Frisch +2 more
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2004
Two thirds of our planet are covered by ocean, beneath which stretches basaltic oceanic crust. The eruptions that produce this crust are hidden from direct observation. Remote sensing instruments with which to record the countless volcanic eruptions that occur under the ocean waves each year are few and far between. Even the fact that mid-ocean ridges (
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Two thirds of our planet are covered by ocean, beneath which stretches basaltic oceanic crust. The eruptions that produce this crust are hidden from direct observation. Remote sensing instruments with which to record the countless volcanic eruptions that occur under the ocean waves each year are few and far between. Even the fact that mid-ocean ridges (
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2017
Mid-ocean ridges illustrate well how volcanic, tectonic, hydrothermal and sedimentary processes sculpt geomorphology in the deep ocean. Because of their poor accessibility (lying 2700 m below sea level on average) and remote locations, the development and deployment of new technology has been important for the discovery and investigation of new ...
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Mid-ocean ridges illustrate well how volcanic, tectonic, hydrothermal and sedimentary processes sculpt geomorphology in the deep ocean. Because of their poor accessibility (lying 2700 m below sea level on average) and remote locations, the development and deployment of new technology has been important for the discovery and investigation of new ...
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2007
A map of the ocean basins (Fig. 5.1) shows that their most conspicuous topographic feature is the system of mid-oceanic ridges, the crests of which rise on average 1000–3000 m above the adjacent ocean floor. Such ridges extend through all the major ocean basins, with a total length in excess of 60 000 km.
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A map of the ocean basins (Fig. 5.1) shows that their most conspicuous topographic feature is the system of mid-oceanic ridges, the crests of which rise on average 1000–3000 m above the adjacent ocean floor. Such ridges extend through all the major ocean basins, with a total length in excess of 60 000 km.
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1999
Preface J. R. Cann, H. Elderfield and A. Laughton 1. Sensitivity of teleseismic body waves to mineral texture and melt in the mantle beneath a mid-ocean ridge Donna K. Blackman and J.-Michael Kendall 2. Evidence for accumulated melt beneath the slow-spreading Mid-Atlantic Ridge M. C. Sinha, D. A. Navin, L. M. Mac Gregor, S. Constable, C.
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Preface J. R. Cann, H. Elderfield and A. Laughton 1. Sensitivity of teleseismic body waves to mineral texture and melt in the mantle beneath a mid-ocean ridge Donna K. Blackman and J.-Michael Kendall 2. Evidence for accumulated melt beneath the slow-spreading Mid-Atlantic Ridge M. C. Sinha, D. A. Navin, L. M. Mac Gregor, S. Constable, C.
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Nature, 1967
THE Mid-Oceanic Ridge, a broad fractured arch more than 40,000 miles long, is the largest tectonic feature on the surface of the Earth. Associated with the centre of the ridge over much of its length is an axial fracture or rift which is the locus of shallow earthquakes.
G. LEONARD JOHNSON, BRUCE C. HEEZEN
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THE Mid-Oceanic Ridge, a broad fractured arch more than 40,000 miles long, is the largest tectonic feature on the surface of the Earth. Associated with the centre of the ridge over much of its length is an axial fracture or rift which is the locus of shallow earthquakes.
G. LEONARD JOHNSON, BRUCE C. HEEZEN
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The Structure Of Mid-Ocean Ridges
Annual Review of Earth and Planetary Sciences, 1992Recent research results on the structure of midocean ridges are reviewed. The new view of ridge-axis crustal structure obtained from high-resolution seismology is reviewed, emphasizing the variation of that structure with spreading rate and along-axis at a given spreading rate.
Sean C. Solomon, Douglas R. Toomey
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Crustal Processes of the Mid-Ocean Ridge
Science, 1981Independent geological and geophysical investigations of the Mid-Ocean Ridge system have begun to focus on the nature of the magma chamber system underlying its central axis. Thermal models predict the existence of a steady-state chamber beneath a thin crustal lid ranging in thickness from 2 to 13 kilometers.
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