Search Results - "Grimes, Craig B"

On the occurrence, trace element geochemistry, and crystallization history of zircon from in situ ocean lithosphere by Grimes, Craig B., John, Barbara E., Cheadle, Michael J., Mazdab, Frank K., Wooden, Joseph L., Swapp, Susan, Schwartz, Joshua J.

“…We characterize the textural and geochemical features of ocean crustal zircon recovered from plagiogranite, evolved gabbro, and metamorphosed ultramafic…”
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Dissolution–reprecipitation of igneous zircon in mid-ocean ridge gabbro, Atlantis Bank, Southwest Indian Ridge by Schwartz, Joshua J., John, Barbara E., Cheadle, Michael J., Wooden, Joseph L., Mazdab, Frank, Swapp, Susan, Grimes, Craig B.

“…Zircons recovered from oceanic gabbro exposed on Atlantis Bank, Southwest Indian Ridge, typically display oscillatory and sector zoning consistent with igneous…”
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Dating the Growth of Oceanic Crust at a Slow-Spreading Ridge by Schwartz, Joshua J, John, Barbara E, Cheadle, Michael J, Miranda, Elena A, Grimes, Craig B, Wooden, Joseph L, Dick, Henry J. B

“…Nineteen uranium-lead zircon ages of lower crustal gabbros from Atlantis Bank, Southwest Indian Ridge, constrain the growth and construction of oceanic crust…”
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Perspectives on the origin of plagiogranite in ophiolites from oxygen isotopes in zircon by Grimes, Craig B., Ushikubo, Takayuki, Kozdon, Reinhard, Valley, John W.

“…The formation of oceanic plagiogranite has been attributed primarily to either 1) extreme fractional crystallization of a mantle melt, or 2) partial melting of…”
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Uniformly mantle-like δ18O in zircons from oceanic plagiogranites and gabbros by Grimes, Craig B., Ushikubo, Takayuki, John, Barbara E., Valley, John W.

“…Lower ocean crust is primarily gabbroic, although 1–2% felsic igneous rocks that are referred to collectively as plagiogranites occur locally. Recent…”
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Duration, rates, and patterns of crustal growth at slow-spreading mid-ocean ridges: Using zircon to investigate the evolution of in situ ocean crust by Grimes, Craig B

“…This dissertation addresses temporal and spatial characteristics of magmatic and tectonic accretion processes occurring at mid-ocean ridges during formation of…”
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SHRIMP Pb/U zircon ages constrain gabbroic crustal accretion at Atlantis Bank on the ultraslow-spreading Southwest Indian Ridge by Baines, A. Graham, Cheadle, Michael J., John, Barbara E., Grimes, Craig B., Schwartz, Joshua J., Wooden, Joseph L.

“…Absolute ages of plutonic rocks from mid-ocean ridges provide important constraints on the scale, timing and rates of oceanic crustal accretion, yet few such…”
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Uniformly mantle-like delta super(18)O in zircons from oceanic plagiogranites and gabbros by Grimes, Craig B, Ushikubo, Takayuki, John, Barbara E, Valley, John W

“…Lower ocean crust is primarily gabbroic, although 1-2% felsic igneous rocks that are referred to collectively as plagiogranites occur locally. Recent…”
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Uniformly mantle-like [delta]18O in zircons from oceanic plagiogranites and gabbros by Grimes, Craig B, Ushikubo, Takayuki, John, Barbara E, Valley, John W

“…Lower ocean crust is primarily gabbroic, although 1-2% felsic igneous rocks that are referred to collectively as plagiogranites occur locally. Recent…”
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Duration, rates, and patterns of crustal growth at slow-spreading mid-ocean ridges: Using zircon to investigate the evolution of in situ ocean crust by Grimes, Craig B

“…This dissertation addresses temporal and spatial characteristics of magmatic and tectonic accretion processes occurring at mid-ocean ridges during formation of…”
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IODP Expeditions 304 and 305: Oceanic Core Complex Formation, Atlantis Massif by Anon

“…Scientific ocean drilling started in the early 1960s with the goal of understanding the nature of the crust-mantle boundary (the Mohorovicic discontinuity, or…”
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