Search Results - "Keller, Randall A"

Magmatism in the Bransfield Basin: Rifting of the South Shetland Arc? by Fretzdorff, Susanne, Worthington, Tim J., Haase, Karsten M., Hékinian, Roger, Franz, Leander, Keller, Randall A., Stoffers, Peter

“…Bransfield Basin is an actively extending marginal basin separating the inactive South Shetland arc from the northern Antarctic Peninsula. Rift‐related…”
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Isotopic evidence for Late Cretaceous plume-ridge interaction at the Hawaiian hotspot by Keller, Randall A, Fisk, Martin R, White, William M

“…When a mantle plume interacts with a mid-ocean ridge, both are noticeably affected. The mid-ocean ridge can display anomalously shallow bathymetry, excess…”
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Volcano–ice–sea interaction in the Cerro Santa Marta area, northwest James Ross Island, Antarctic Peninsula by Calabozo, Fernando M., Strelin, Jorge A., Orihashi, Yuji, Sumino, Hirochika, Keller, Randall A.

“…We present here the results of detailed mapping, lithofacies analysis and stratigraphy of the Neogene James Ross Island Volcanic Group (Antarctic Peninsula) in…”
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Geochemistry of back arc basin volcanism in Bransfield Strait, Antarctica: Subducted contributions and along-axis variations by Keller, Randall A., Fisk, Martin R., Smellie, John L., Strelin, Jorge A., Lawver, Lawrence A.

“…Bransfield Strait is a Quaternary, ensialic back arc basin at the transition from rifting to spreading. Fresh volcanic rocks occur on numerous submarine…”
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Extreme Chemical Diversity in the Mantle during Eclogitic Diamond Formation: Evidence from 35 Garnet and 5 Pyroxene Inclusions in a Single Diamond by Sobolev, Nikolay V., Snyder, Gregory A., Taylor, Lawrence A., Keller, Randall A., Yefimova, Emilya S., Sobolev, Vladimir N., Shimizu, Nobumichi

“…We report major- and trace-element variations in 35 garnet inclusions extracted from a single eclogitic diamond from the Mir kimberlite pipe, Yakutia. The…”
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Metasomatic Eclogitic Diamond Growth: Evidence from Multiple Diamond Inclusions by Taylor, Lawrence A., Milledge, H. Judith, Bulanova, Galina P., Snyder, Gregory A., Keller, Randall A.

“…Diamond formation from metasomatic fluids, rather than from igneous melts, remains controversial but is paramount to our understanding of diamonds' mantle…”
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Diamonds and Their Mineral Inclusions, and What They Tell Us: A Detailed "Pull-Apart" of a Diamondiferous Eclogite by Taylor, Lawrence A., Keller, Randall A., Snyder, Gregory A., Wang, Wuyi, Carlson, William D., Hauri, Erik H., Mccandless, Tom, Kim, Kuk-Rak, Sobolev, Nikolai V., Bezborodov, Sergei M.

“…For the first time, three-dimensional, high-resolution X-ray computed tomography (HRXCT) of an eclogite xenolith from Yakutia has successfully imaged diamonds…”
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Magmatism in the Bransfield Basin: Rifting of the South Shetland Arc? by FRETZDORFF, Susanne, WORTHINGTON, Tim J, HAASE, Karsten M, HEKINIAN, Roger, FRANZ, Leander, KELLER, Randall A, STOFFERS, Peter

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Geochemistry of back arc basin volcanism in Bransfield Strait, Antarctica: Subducted contributions and along-axis variations by KELLER, Randall A, FISK, Martin R, SMELLIE, John L, STRELIN, Jorge A, LAWVER, Lawrence A

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