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Showing 1 to 20 of 46 for “"fracture zone"”.

  1. Crustal accretion near ridge-transform intersections : Kane fracture zone, mid-Atlantic ridge.

    Lawson, N KateDurham University1996

    durham Repository record

  2. Topography and tectonics of the intersections of fracture zone with central rifts.

    Sleep, Norman HMassachusetts Institute of Technology1969

    Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1969.

    mit Repository record

  3. A refraction study of the median ridge of the Kane fracture zone

    Blumberg, George Micah ConnorMassachusetts Institute of Technology1987

    Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1987.

    mit Repository record

  4. Petrological and geochemical studies of an abyssal periodotite from the Atlantis II fracture zone

    Lee, Kwok-LinMassachusetts Institute of Technology and Woods Hole Oceanographic Institution1997

    … abyssal peridotite dredged from the Atlantis II Fracture Zone in the southwestern Indian Ocean Ridge. Texturally, this sample is a serpentinized peridotite with a crosscutting coarse-grained clinopyroxenite vein. One of the alteration veinlets contains rutile and ilmenite in association with …

    woods-hole Repository record

  5. Petrological and geochemical studies of an abyssal periodotite from the Atlantis II fracture zone

    Lee, Kwok-LinMassachusetts Institute of Technology1997

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1997.

    mit Repository record

  6. Structural modelling and earthquake analysis of a hospital building located within the Tjörnes fracture zone in Iceland

    Höskuldur Þorbjargarson 1987-2016

    The Tjörnes fracture zone(TFZ)is one of the two most active seismic regions in Iceland. It is of vital importance for civil protection and security of the local residents living in that area to have a fully functioning hospital close by, when a major earthquake event occurs within the TFZ. The main …

    reykjavik Repository record

  7. The geochemistry, mineralogy and igneous petrology of some fracture zone basalts from the southern Mid-Atlantic Ridge

    Van Heerden, LeonDepartment of Oceanography1987

    … in a suite of oceanic basalts dredged from a fracture zone transecting the Mid-Atlantic Ridge at 54°S is quantitatively evaluated in terms of fractional crystallization and crystal accumulation models. Bulk rock chemistry and petrography are used to classify the samples into four distinct …

    cape-town Repository record

  8. The upper ocean structure of the Antarctic circumpolar current in the vicinity of the South-West Indian ridge

    Gulekana, Mthuthuzeli KennethDepartment of Oceanography2005

    … Indian sector of the Southern Ocean, at a fracture zone situated within the South-West Indian Ridge (SWIR). The fracture zone, formally called the Andrew Bain fracture zone (ABFZ), is centred at 50°S;30°E. The main focus of this investigation, which was strategically located around the …

    cape-town Repository record

  9. Tectonic evolution and midplate volcanism in the South Pacific

    Jordahl, Kelsey A.Massachusetts Institute of Technology and Woods Hole Oceanographic Institution1999

    Changes in morphology of the Marquesas Fracture Zone are correlated with small changes in Pacific-Farallon relative motion. The simple flexural signal of a locked fracture zone may be obscured by tectonic effects, and there is no evidence for the release of shear stress on the fracture zone by …

    woods-hole Repository record

  10. Application of Seasat altimetry to tectonic studies of fracture zones in the Southern oceans

    Driscoll, Mavis LynnMassachusetts Institute of Technology1987

    … the intermediate-wavelength anomalies across the fracture zones. The shorter wavelength anomalies are consistent with those calculated from topography using elastic plate compensation. The combined effect of the thermal offset and seafloor topography produces an anomaly which has a …

    mit Repository record

  11. Influência da Zona de Fratura Romanche na evolução tectono-sedimentar do setor central da Margem Equatorial Brasileira

    Carvalho, Saywry Virginio deUniversidade Federal do Rio Grande do Norte2025

    … study investigates the influence of the Romanche Fracture Zone on the tectono-sedimentary evolution of the Barreirinhas Basin, located in the central sector of the Brazilian Equatorial Margin and Guina. Based on integrated analysis of five seismic sections and three exploratory well, structures …

    brazil-ufrn Repository record

  12. Geochemistry and mineralogy of selected Atlantic Ocean basalts

    Le Roex, Anton PowterDepartment of Geological Sciences1980

    … at 36°49 'N (FAMOUS), from the Islas Orcadas fracture zone on the Southwest Indian Ocean Ridge, from the Conrad fracture zone on the America-Antarctica Ridge and from Bouvet Island, situated at the southernmost tip of the Mid- Atlantic Ridge and in the vicinity of both the fracture zones …

    cape-town Repository record

  13. Subsurface Structure, Stratigraphy, and Hydrocarbon Basin Modeling of the Barbados Accretionary Prism

    Moore, Bryan LeeUniversity of Houston2022

    … to the front of the prism and dammed by fracture zone ridges on the subducting, Atlantic plate. In Chapter 2, I evaluate the along-strike changes in the BAP as a response to oblique subduction of the two, elongated, fracture zones in oceanic crust (Tiburon Rise and Barracuda Ridge). …

    houston Repository record

  14. Mineralogical, textural, and paragenetic studies of selected ore deposits of the Southeast Missouri lead-zinc-copper district and their genetic implications

    Horrall, Kenneth BruceUniversity of Missouri--Rolla2016

    … ultramafic and mafic intrusives controlled by a fracture zone which extends north-northwest from the New Madrid rift towards Fredericktown, Missouri. This fracture zone may represent a transform fault, an epicenter trend, and a distinct, first-order lineament” --Abstract, pages xxiv-xxv.</p>

    must-thes Repository record

  15. Trace element geochemistry of oceanic peridotites and silicate melt inclusions : implications for mantle melting and ocean ridge magmagenesis

    Johnson, Kevin T. M.Massachusetts Institute of Technology and Woods Hole Oceanographic Institution1990

    … state mantle melting at the Atlantis II Fracture Zone cutting the very slow spreading Southwest Indian Ridge. Trace element compositions of peridotite clinopyroxenes from fracture zones along the American-Antarctic and Southwest Indian Ridges vary as a function of proximity to hotspots. …

    woods-hole Repository record

  16. Geology and structure of the Serra Do Mar in eastern São Paulo, Brazil

    Rideg, Peter

    … one from the other by the large Cubatão fault zone.</p><p>The Suzano Complex is divided into three formations: the Oropó schist, the Iupeba gneiss, and the Paranapiacaba gneiss. The Itatinga Complex is divided into four formations: the Biritiba-Mirim migmatite, the Jurubatuba migmatite, the …

    binghamton Repository record

  17. The deepest paradox : seafloor mining and its future

    Husain, FatimaMassachusetts Institute of Technology2018

    … of the seafloor including the Clarion-Clipperton Fracture Zone, the Prime Crust Zone, and inactive or waning hydrothermal vent systems have attracted attention for their unique concentration of metals used in electronics and strong magnets. With commercial mining activities set to commence in 2019 …

    mit Repository record

  18. The effect of a shallow low viscosity zone on mantle convection and its expression at the surface of the earth

    Robinson, Elizabeth MMassachusetts Institute of Technology1987

    … the plate: mid-plate swells, the evolution of fracture zones, the mean depth and heat flow relationships with age and the observation of small scale (150-250 km) geoid and topography anomalies in the Central Pacific and Indian oceans. Convective models are presented of the formation and …

    mit Repository record

  19. The isotope geochemistry of abyssal peridotites and related rocks

    Snow, Jonathan E.Massachusetts Institute of Technology and Woods Hole Oceanographic Institution1993

    … geomorphology, and analysis of the tectonics of fracture zones. The first chapter is an introduction to the problems to be addressed in this work. The second chapter examines the composition of basalts erupted near the Atlantis II Fracture Zone on the Southwest Indian Ridge. Trends in major …

    woods-hole Repository record

  20. Collisional Reactivation of Rift Margin Fracture Zones, Taiwan and the Taconic Allochthon

    Mirakian, David C2011

    … due to the Reactivation of a Partially-Subducted Fracture Zone: The Southwest Hsüehshan Range, Central Taiwan</strong></p> <p><strong><em>Abstract — </em></strong>The southwest flank of the Hsüehshan Range is defined by a topographic break which cuts across regionally mapped structures in central …

    uconn-diss Repository record

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