Results 11 to 20 of about 60,190 (245)

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

Risk Assessment of Mercury-Contaminated Fish Consumption in the Brazilian Amazon: An Ecological Study

open access: yesToxics, 2023
Mercury is one of the most dangerous contaminants on the planet. In recent years, evidence of mercury contamination in the Amazon has significantly increased, notably due to gold-mining activities.
Paulo Cesar Basta   +7 more
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

Geomorphological processes on terrestrial planetary surfaces [PDF]

open access: yes, 1980
This review deals with features and processes on planetary surfaces, first by examining the impact of photographic explorations of Moon, Mars, and Mercury on studies of surface processes on our own planet, and second by treating matters related to ...
Sharp, Robert P.
core   +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

Solar sail capture trajectories at Mercury [PDF]

open access: yes, 2002
Mercury is an ideal environment for future planetary exploration by solar sail since it has proved difficult to reach with conventional propulsion and hence remains largely unexplored.
Anselmi A.   +13 more
core   +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

Mercury's resonant rotation from secular orbital elements [PDF]

open access: yes, 2015
We used recently produced Solar System ephemerides, which incorporate two years of ranging observations to the MESSENGER spacecraft, to extract the secular orbital elements for Mercury and associated uncertainties.
Hussmann, Hauke   +2 more
core   +2 more sources

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