Results 151 to 160 of about 50,735 (203)
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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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Mid‐ocean ridge magma chambers
Journal of Geophysical Research: Solid Earth, 1992Geophysical evidence precludes the existence of a large, mainly molten magma chamber beneath portions of the East Pacific Rise (EPR). A reasonable model, consistent with these data, involves a thin (tens to hundreds of meters high), narrow (<1–2 km wide) melt lens overlying a zone of crystal mush that is in turn surrounded by a transition zone of ...
John M. Sinton, Robert S. Detrick
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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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Segmentation of mid-ocean ridges
Nature, 1985Studies of mid-ocean ridges in the Pacific and Atlantic oceans show that the volcanism that forms the oceanic crust along the spreading-plate boundaries is concentrated at regular intervals related to spreading rate. This observation and a new calculation for a Rayleigh–Taylor type of gravitational instability of a partially molten mantle region ...
Hans Schouten +2 more
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Offshore Technology Conference, 1980
ABSTRACT Exploration of the Mid-Ocean Ridge in recent years has resulted in a better understanding of its complex geologic processes. This new insight was obtained through the use of a comprehensive mapping approach involving three major mapping systems: multi-narrow beam sonar, ANGUS photography, and manned ...
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ABSTRACT Exploration of the Mid-Ocean Ridge in recent years has resulted in a better understanding of its complex geologic processes. This new insight was obtained through the use of a comprehensive mapping approach involving three major mapping systems: multi-narrow beam sonar, ANGUS photography, and manned ...
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Iceland and mid-oceanic ridges
Marine Geophysical Researches, 1971Magnetic anomalies over Iceland, measured by Serson et al. (1968), are similar in shape and amplitude to those found over mid-oceanic ridges in general and over Reykjanes Ridge in particular. However, the geology of Iceland does not favour the simple model of sea floor spreading as formulated by Vine and Matthews.
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Tectonophysics, 1974
Abstract Various simple models for the emplacement of new material at the mid-oceanic ridge are discussed. Ridges with median valleys and ones without such valleys are considered. The emplacement of both extrusive and intrusive material is taken into account.
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Abstract Various simple models for the emplacement of new material at the mid-oceanic ridge are discussed. Ridges with median valleys and ones without such valleys are considered. The emplacement of both extrusive and intrusive material is taken into account.
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Trends and variability in the ocean carbon sink
Nature Reviews Earth & Environment, 2023Nicolas Gruber +2 more
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Protecting the global ocean for biodiversity, food and climate
Nature, 2021Enric Sala, Juan Mayorga, Darcy Bradley
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