Results 1 to 10 of about 13,506 (264)
Rare oceanic diamonds are believed to have a mantle transition zone origin like super-deep continental diamonds. However, oceanic diamonds have a homogeneous and organic-like light carbon isotope signature (δ13C − 28 to − 20‰) instead of the extremely ...
Luc S. Doucet +2 more
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Stable Brine Layers beneath Europa’s Chaos
The formation mechanism of Europa’s large chaos terrain (>∼100 km diameter) and associated lenticulae (
C. J. Chivers +2 more
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An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Hamed Gamal EL Dien +4 more
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Resolving glacial isostatic adjustment (GIA) in response to modern and future ice loss at marine grounding lines in West Antarctica [PDF]
Accurate glacial isostatic adjustment (GIA) modelling in the cryosphere is required for interpreting satellite, geophysical and geological records and for assessing the feedbacks of Earth deformation and sea-level change on marine ice-sheet grounding ...
J. X. W. Wan +4 more
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Setting the Stage for Habitable Planets
Our understanding of the processes that are relevant to the formation and maintenance of habitable planetary systems is advancing at a rapid pace, both from observation and theory.
Guillermo Gonzalez
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Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle
The links between plate tectonics and deep mantle structure remain unclear. Here, the authors demonstrate that transition elements (Ni, Cr, and Fe/Mn) in basaltic rocks can be used as a tool to trace plume-related magmatism through Earth history, and ...
Hamed Gamal EL Dien +4 more
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Extreme heat occurred over Alaska in June–July 2019, posing risks to infrastructure, ecosystem, and human health. It is vital to improve our understanding of the causes of such events and the extent to which anthropogenic forcing may alter their ...
Sarah K. Weidman +3 more
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Design and Research Co-Simulation Platform of Navigation and Dynamics on Planetary Rovers
The overall design idea of simulation platform of the planetary rover coupling navigation and dynamics is proposed to address the dilemma faced in the design of a navigation control system for Mars and other planetary exploration tasks.
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Orbital forcing of ice sheets during snowball Earth
Reconciling the Snowball Earth hypothesis with sedimentological cyclicity has been a persistent challenge. A new cyclostratigraphic climate record for a Cryogenian banded iron formation in Australia provides evidence for orbital forcing of ice sheet ...
Ross N. Mitchell +8 more
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Dynamic modeling and analysis of high-speed flexible planetary gear transmission systems
Modern planetary gear transmissions are often made with flexible components and operated at high or varying speed. Despite advances in understanding their dynamic performance, they remain vulnerable to problems leading—in some cases—to subsequent system ...
Changzhao Liu +4 more
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