Results 1 to 10 of about 13,506 (264)

Oceanic and super-deep continental diamonds share a transition zone origin and mantle plume transportation

open access: yesScientific Reports, 2021
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
doaj   +1 more source

Stable Brine Layers beneath Europa’s Chaos

open access: yesThe Planetary Science Journal, 2023
The formation mechanism of Europa’s large chaos terrain (>∼100 km diameter) and associated lenticulae (
C. J. Chivers   +2 more
doaj   +1 more source

Author Correction: Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle

open access: yesNature Communications, 2020
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
doaj   +1 more source

Resolving glacial isostatic adjustment (GIA) in response to modern and future ice loss at marine grounding lines in West Antarctica [PDF]

open access: yesThe Cryosphere, 2022
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
doaj   +1 more source

Setting the Stage for Habitable Planets

open access: yesLife, 2014
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
doaj   +1 more source

Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle

open access: yesNature Communications, 2019
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
doaj   +1 more source

The Alaskan Summer 2019 Extreme Heat Event: The Role of Anthropogenic Forcing, and Projections of the Increasing Risk of Occurrence

open access: yesEarth's Future, 2021
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
doaj   +1 more source

Design and Research Co-Simulation Platform of Navigation and Dynamics on Planetary Rovers

open access: yesXibei Gongye Daxue Xuebao, 2019
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.

doaj   +1 more source

Orbital forcing of ice sheets during snowball Earth

open access: yesNature Communications, 2021
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
doaj   +1 more source

Dynamic modeling and analysis of high-speed flexible planetary gear transmission systems

open access: yesAlexandria Engineering Journal, 2023
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
doaj   +1 more source

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