Noble metals in mid-ocean ridge volcanism: A significant fractionation of gold with respect to platinum group metals [PDF]
Hydrothermal precipitates, black smoker particulate, and massive sulphide dredge samples from the Explorer Ridge on the Juan de Fuca Plate and the TAG hydrothermal area on the Mid-Atlantic Ridge were analyzed for selected noble metals including Au, Ir ...
Crocket, James H.
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Vesicularity, bubble formation and noble gas fractionation during MORB degassing
, 2013 The objective of this study is to use molecular dynamics simulation (MD) to evaluate the vesicularity and noble gas fractionation, and to shed light on bubble formation during MORB degassing.
Aubry, G., Guillot, B., Sator, N.
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Understanding marine biodiversity patterns and drivers: The fall of Icarus
Marine Ecology, EarlyView.Abstract Biodiversity patterns are fundamental in our understanding of the distribution of life, ecosystem function, and conservation. In this concept analysis, A survey of the existing knowledge on marine biodiversity patterns and drivers across latitudes, longitudes, and depths indicates that none of the postulated patterns represent a rule.
Roberto Danovaro
wiley +1 more source
Petrography and mineral chemistry of Northeast Africa 053—A remnant of Martian crystal mush
Meteoritics &Planetary Science, EarlyView.Abstract In Earth's igneous systems, crystal mushes, crystal‐rich frameworks permeated by silicate melt, represent a common and fundamental stage in the evolution of magma bodies. However, whether crystal mushes occur within Martian igneous systems and play a comparable role is unknown. Here, we present a comprehensive petrography and mineral chemistry
Xhonatan Shehaj +2 more
wiley +1 more source
Persistent Heterogeneities in the Oceanic Lithosphere Due To Differential Freezing Beneath Ridges
Geophysical Research LettersOceanic lithosphere, which forms two‐thirds of Earth's surface, is generated at mid‐ocean ridge spreading centers. Yet the internal structure of the lithosphere is not well characterized and often considered to be homogeneous relative to the structure of
Shi Joyce Sim +2 more
doaj +1 more source
That sinkin’ feeling: Environmentally induced distress on a disappearing island
Medical Anthropology Quarterly, EarlyView.Abstract Residents of Tangier Island, Virginia, a subsiding island in the Chesapeake Bay, embody psychosocial dimensions of environmental change. Analysis of ethnographic data shows islanders’ experiences and articulations of anxiety, panic, and despair as “that sinkin’ feeling,” resulting from the stress of living with the long‐term threat of imminent
Jonna Yarrington
wiley +1 more source
Specialized Committees of International Organizations an Important Source of Organizational Autonomy
Regulation &Governance, EarlyView.ABSTRACT Assigning the preparation of decisions to specialized committees composed of member state representatives is a widespread response to the ‘governor's dilemma’, that is, the tension between competence and control, in international organizations (IOs). We theorize a causal mechanism referring to self‐selection and agenda‐setting effects and show
Michael Giesen +3 more
wiley +1 more source
The interplay of faulting, magmatism and Hydrothermal fluid flow at oceanic ridges - new insights from numerical modeling [PDF]
, 2015 The dissertation examines the interplay between the convection of hydrothermal fluids, magmatic processes and permeable faults in the oceanic lithosphere in Mid-Ocean Ridge settings.
Andersen, Christine
core
Frontiers in Earth ScienceThe intersection of the Foundation Plume with the Pacific-Antarctic Ridge is a key location in global geodynamics where a mantle plume is approached by and interacting with a fast-spreading mid-ocean ridge.
Philipp A. Brandl +7 more
doaj +1 more source