Search Results - "V. Dorsey Wanless"

Extreme Heterogeneity in Mid‐Ocean Ridge Mantle Revealed in Lavas From the 8°20′N Near‐Axis Seamount Chain by Molly Anderson, V. Dorsey Wanless, Michael Perfit, Ethan Conrad, Patricia Gregg, Daniel Fornari, W. Ian Ridley

“…Abstract Lavas that have erupted at near‐axis seamounts provide windows into mid‐ocean ridge mantle heterogeneity and melting systematics which are not easily…”
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Submarine Deep‐Water Lava Flows at the Base of the Western Galápagos Platform by Molly Anderson, V. Dorsey Wanless, Darin M. Schwartz, Emma McCully, Daniel J. Fornari, Max P. Jones, S. Adam Soule

“…Abstract To investigate the initial phases of magmatism at the leading edge of the upwelling mantle plume, we mapped, photographed, and collected samples from…”
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The boron and lithium isotopic composition of mid-ocean ridge basalts and the mantle by Marschall, Horst R., Wanless, V. Dorsey, Shimizu, Nobumichi, Pogge von Strandmann, Philip A.E., Elliott, Tim, Monteleone, Brian D.

“…A global selection of 56 mid-ocean ridge basalt (MORB) glasses were analysed for Li and B abundances and isotopic compositions. Analytical accuracy and…”
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Relative Timing of Off‐Axis Volcanism From Sediment Thickness Estimates on the 8°20’N Seamount Chain, East Pacific Rise by Fabbrizzi, Andrea, Parnell‐Turner, Ross, Gregg, Patricia M., Fornari, Daniel J., Perfit, Michael R., Wanless, V. Dorsey, Anderson, Molly

“…Volcanic seamount chains on the flanks of mid‐ocean ridges record variability in magmatic processes associated with mantle melting over several millions of…”
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Noble gas systematics in new popping rocks from the Mid-Atlantic Ridge (14°N): Evidence for small-scale upper mantle heterogeneities by Péron, Sandrine, Moreira, Manuel A., Kurz, Mark D., Curtice, Joshua, Blusztajn, Jerzy S., Putlitz, Benita, Wanless, V. Dorsey, Jones, Max P., Soule, S. Adam, Mittelstaedt, Eric

“…The origin and evolution of terrestrial volatiles is a fundamental question in Earth and planetary sciences. To better address this, it is necessary to…”
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New Opportunities and Untapped Scientific Potential in the Abyssal Ocean by Marlow, Jeffrey J., Anderson, Rika E., Reysenbach, Anna-Louise, Seewald, Jeffrey S., Shank, Timothy M., Teske, Andreas P., Wanless, V. Dorsey, Soule, S. Adam

“…The abyssal ocean covers more than half of the Earth’s surface, yet remains understudied and underappreciated. In this Perspectives article, we mark the…”
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Identification of Erosional Terraces on Seamounts: Implications for Interisland Connectivity and Subsidence in the Galápagos Archipelago by Schwartz, Darin M., Soule, S. Adam, Wanless, V. Dorsey, Jones, Max P.

“…Shallow seamounts at ocean island hotspots and in other settings may record emergence histories in the form of submarine erosional terraces. Exposure histories…”
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Significance of widespread low effusion rate eruptions over the past two million years for delivery of magma to the overlapping spreading centers at 9°N East Pacific Rise by White, Scott M., Mason, Jessica L., Macdonald, Ken C., Perfit, Michael R., Wanless, V. Dorsey, Klein, Emily M.

“…Ever since the discovery that the mid-ocean ridge axis deepens at most axial discontinuities, there has been vigorous debate about whether ridge axis depth and…”
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Lava Geochemistry as a Probe into Crustal Formation at the East Pacific Rise by PERFIT, MICHAEL R., WANLESS, V. DORSEY, RIDLEY, W. IAN, KLEIN, EMILY M., SMITH, MATTHEW C., GOSS, ADAM R., HINDS, JILLIAN S., KUTZA, SCOTT W., FORNARI, DANIEL J.

“…Basalt lavas comprise the greatest volume of volcanic rocks on Earth, and most of them erupt along the world's mid-ocean ridges (MORs). These MOR basalts…”
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Shield-stage alkalic volcanism on Mauna Loa Volcano, Hawaii by Dorsey Wanless, V., Garcia, Michael O., Michael Rhodes, J., Weis, Dominique, Norman, Marc D.

“…Alkalic lavas have been discovered at two young (∼15–20 ka) submarine radial vents on the western flank of Mauna Loa, a volcano that was thought to have…”
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Constraints on near-ridge magmatism using 40Ar/39Ar geochronology of enriched MORB from the 8°20' N seamount chain by Anderson, Molly K., Perfit, Michael R., Morgan, Leah E., Fornari, Daniel J., Cosca, Michael, Wanless, V. Dorsey

“…Our understanding of the spatial-temporal-compositional relationships between off-axis magmatism and mid-ocean ridge spreading centers is limited. Determining…”
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Geology and petrogenesis of lavas from an overlapping spreading center: 9°N east Pacific rise by Wanless, V Dorsey

“…In contrast to relatively homogeneous mid-ocean ridge basalt (MORB) compositions typically erupted on fast-spreading oceanic ridges, a wide range of rock types…”
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The mafic Curacautín ignimbrite of Llaima volcano, Chile by Marshall, Aaron A., Brand, Brittany D., Martínez, Valeria, Bowers, Jade M., Walker, Megan, Wanless, V. Dorsey, Andrews, Benjamin J., Manga, Michael, Valdivia, Pedro, Giordano, Guido

“…Mafic volcanism accounts for 80% of magmas erupted on Earth. Although the majority of these eruptions are effusive to Strombolian and fountain-fed, large…”
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Vanadium isotope compositions of mid-ocean ridge lavas and altered oceanic crust by Wu, Fei, Qi, Yuhan, Perfit, M.R., Gao, Yongjun, Langmuir, Charles H., Wanless, V. Dorsey, Yu, Huimin, Huang, Fang

“…•Fresh MORB and BABB have homogeneous δ51V with an average of −0.84±0.10‰ (2SD, n=22).•AOC has an average δ51V of −0.85±0.11‰ (2SD, n=53), not apparently…”
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Constraints from melt inclusions on depths of magma residence at intermediate magma supply along the Galápagos Spreading Center by Colman, Alice, Sinton, John M., Wanless, V. Dorsey

“…Shallow, seismically imaged melt lenses are a ubiquitous feature of mid-ocean ridges with high magma supply; melt lenses deepen and become less continuous…”
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Petrogenesis of alkalic seamounts on the Galápagos Platform by Schwartz, Darin M., Wanless, V. Dorsey, Berg, Rebecca, Jones, Max P., Fornari, Daniel J., Soule, S. Adam, Lytle, Marion L., Carey, Steve

“…In the hotspot-fed Galápagos Archipelago there are transitions between volcano morphology and composition, effective elastic thickness of the crust, and…”
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New insights into the age and origin of two small Cretaceous seamount chains proximal to the northwestern Hawaiian Ridge by Sotomayor, Arturo, Balbas, Andrea, Konrad, Kevin, Koppers, Anthony A. P, Konter, Jasper G, Wanless, V. Dorsey, Hourigan, Thomas F, Kelley, Christopher, Raineault, Nicole

“…The Northwestern Hawaiian Ridge is an age-progressive volcanic chain sourced from the Hawaiian mantle plume. Proximal to the Northwestern Hawaiian Ridge are…”
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Monogenetic Near‐Island Seamounts in the Galápagos Archipelago by D. M. Schwartz, V. D. Wanless, S. A. Soule, M. D. Schmitz, M. D. Kurz

“…Abstract Rarely have small seamounts on the flanks of hotspot derived ocean‐island volcanoes been the targets of sampling, due to sparse high‐resolution…”
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Geology and petrogenesis of lavas from an overlapping spreading center: 9°N east Pacific rise by Wanless, V. Dorsey

“…In contrast to relatively homogeneous mid-ocean ridge basalt (MORB) compositions typically erupted on fast-spreading oceanic ridges, a wide range of rock types…”
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