Dating the Growth of Oceanic Crust at a Slow-Spreading Ridge

Nineteen uranium-lead zircon ages of lower crustal gabbros from Atlantis Bank, Southwest Indian Ridge, constrain the growth and construction of oceanic crust at this slow-spreading midocean ridge. Approximately 75% of the gabbros accreted within error of the predicted seafloor magnetic age, whereas...

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Veröffentlicht in:	Science (American Association for the Advancement of Science) 2005-10, Vol.310 (5748), p.654-657
Hauptverfasser:	Schwartz, Joshua J, John, Barbara E, Cheadle, Michael J, Miranda, Elena A, Grimes, Craig B, Wooden, Joseph L, Dick, Henry J. B
Format:	Artikel
Sprache:	eng
Schlagworte:	Age Analysis Carbon dating Cooling Crystalline rocks Crystallization Drilling Earth Earth sciences Earth, ocean, space Exact sciences and technology Gabbro Igneous and metamorphic rocks petrology, volcanic processes, magmas Magma Mantle Marine Marine geology Observations Ocean Ocean bottom Oceanic crust Oceanographic research Oceans Organic Chemistry Plate tectonics Rocks Zoning
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