Journal ArticleDOI
Dyke complex of the East Pacific Rise exposed in the walls of Hess Deep and the structure of the upper oceanic crust
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In this paper, an upper, thin (100-200 m) unit of extrusives (pillow lavas) underlain by a mixed zone of variable thickness (50-500 m, averaging 200 m) was found and intrusives and massive subhorizontal layers which may represent sills.About:
This article is published in Earth and Planetary Science Letters.The article was published on 1992-06-01. It has received 92 citations till now. The article focuses on the topics: Oceanic crust & Pillow lava.read more
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Journal ArticleDOI
Volcanoes, Fluids, and Life at Mid-Ocean Ridge Spreading Centers
TL;DR: The recent recognition of a potentially vast unexplored hot microbial biosphere associated with active volcanism along the global mid-ocean ridge network has fundamentally shifted concepts of how planets and life coevolve.
Journal ArticleDOI
Permeability within basaltic oceanic crust
TL;DR: In this paper, a series of focused experiments are required to resolve the wide range of estimated permeability in shallow oceanic basement and to directly couple upper crustal hydrogeology to magmatic, tectonic, and geochemical crustal evolution.
Journal ArticleDOI
A multichannel seismic investigation of upper crustal structure at 9°N on the East Pacific Rise: Implications for crustal accretion
TL;DR: In this paper, wide-angle reflections from the base of seismic layer 2A, based upon modeling of expanding spread profile data and velocity functions, are identified as shallow subbasement events.
Book ChapterDOI
Source of oceanic magnetic anomalies and the geomagnetic polarity time scale
Jeffrey S. Gee,Dennis V. Kent +1 more
TL;DR: In this article, the authors provide a framework for the geomagnetic polarity timescale for the Late Jurassic to Recent (since 160-Ma) by using magnetostratigraphic records.
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3.13 – Geochemistry of the Igneous Oceanic Crust
TL;DR: In this paper, the authors present a survey of geochromatic variations in lava compositions, including the shape of the melting regime, the generation of diverse melt compositions, and the transformation of pyroxenite melting.
References
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Structures of Ophiolites and Dynamics of Oceanic Lithosphere
TL;DR: In this article, the authors present an analysis of ophiolite structures in the context of oceanic lithosphere and asthenosphere and discuss the importance of the Ophiolites as markers of past plate tectonics.
Journal ArticleDOI
Multi-channel seismic imaging of a crustal magma chamber along the East Pacific Rise
Robert S. Detrick,Peter Buhl,E. E. Vera,John C. Mutter,John A. Orcutt,J. Madsen,Thomas M. Brocher +6 more
TL;DR: A reflection observed on multi-channel seismic profiles along and across the East Pacific Rise between 8°50′ N and 13°30′ N is interpreted to arise from the top of a crustal magma chamber located 1.2-2.4 km below the sea floor as discussed by the authors.
Journal ArticleDOI
The structure of 0‐ to 0.2‐m.y.‐old oceanic crust at 9°N on the East Pacific Rise from expanded spread profiles
E. E. Vera,John C. Mutter,Peter Buhl,John A. Orcutt,Alistair J. Harding,M. E. Kappus,Robert S. Detrick,Thomas M. Brocher +7 more
TL;DR: In this article, the authors analyzed four expanded spread profiles acquired at distances of 0, 2.1, 3.1 and 10 km from the axis of the East Pacific Rise between 9° and 10°N.
Journal ArticleDOI
Upper crustal structure as a function of plate age
Robert E. Houtz,John Ewing +1 more
TL;DR: In this article, the authors used a sonobuoy to study the seafloor crustal structure as a function of plate age in both oceans, since they have very different spreading rates.