Results 11 to 20 of about 2,329 (243)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+10 more sources

Elevated mercury concentrations in humans of Madre de Dios, Peru. [PDF]

open access: yesPLoS ONE, 2012
The enormous increase in practically unregulated mining in Madre de Dios Peru is leading to massive release of liquid elemental mercury to the environment. Rapidly increasing global prices for gold are causing a massive upsurge in artisanal mining in the
Katy Ashe
doaj   +1 more source

RELIEF OF MERCURY AND THE MOON: FROM MORPHOMETRY TO MORPHOLOGICAL MAPPING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
The MESSENGER mission (2011–2015) gives us an opportunity to gain new knowledge about Mercury which is still the least explored planet of the terrestrial group.
A. Y. Zharkova   +4 more
doaj   +1 more source

New Compound and Hybrid Binding Energy Sputter Model for Modeling Purposes in Agreement with Experimental Data

open access: yesThe Planetary Science Journal, 2023
Rocky planets and moons experiencing solar wind sputtering are continuously supplying their enveloping exosphere with ejected neutral atoms. To understand the quantity and properties of the ejecta, well-established binary collision approximation Monte ...
Noah Jäggi   +7 more
doaj   +1 more source

The Intra-Mercurial Planet Or Planets [PDF]

open access: yesNature, 1876
THE question of the existence of one or more planetary bodies revolving within the orbit of Mercury is again revived by Weber's observation of a round black spot just within the sun's eastern limb, on the afternoon of April 4 in the present year which had not been visible on the same morning, and early on the following day had disappeared. The position
openaire   +1 more source

The chemical case for Mercury mantle stripping

open access: yesProgress in Earth and Planetary Science, 2019
Mercury, the Solar System’s innermost planet, has an unusually massive core prompting speculation that the planet lost silicate after it formed. Using the unusually high sulfur and low iron composition of its surface and space geodetic constraints on its
George Helffrich   +2 more
doaj   +1 more source

A transient enhancement of Mercury’s exosphere at extremely high altitudes inferred from pickup ions

open access: yesNature Communications, 2020
Mercury has a global dayside exosphere that is very tenuous and does not extend far from the planet. Here, the authors show enhancement of neutral densities at high altitudes inferred from pickup ions that is most likely caused by the impact of a ...
Jamie M. Jasinski   +9 more
doaj   +1 more source

The Dynamical Consequences of a Super-Earth in the Solar System

open access: yesThe Planetary Science Journal, 2023
Placing the architecture of the solar system within the broader context of planetary architectures is one of the primary topics of interest within planetary science. Exoplanet discoveries have revealed a large range of system architectures, many of which
Stephen R. Kane
doaj   +1 more source

A Reanalysis of the Composition of K2-106b: An Ultra-short-period Super-Mercury Candidate

open access: yesThe Astronomical Journal, 2023
We present a reanalysis of the K2-106 transiting planetary system, with a focus on the composition of K2-106b, an ultra-short-period, super-Mercury candidate. We globally model existing photometric and radial velocity data and derive a planetary mass and
Romy Rodríguez Martínez   +11 more
doaj   +1 more source

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