Results 171 to 180 of about 78,262 (284)
Geostandards and Geoanalytical Research, Volume 49, Issue 3, Page 495-533, September 2025.Key Points Synchrotron nano‐imaging is necessary to locate elemental nanophases. Trace metal quantification requires high sensitivity nano‐XRF. Trace metal speciation relies on nano‐XANES using nano‐XRF. This chapter (Nano‐Imaging for Advanced X‐ray Fluorescence and Absorption Spectroscopy Applications) is a contribution to the Geostandards and ...
Alexandre S. Simionovici +1 more
wiley +1 more source
Slowdown of Dune Migration in East Asia's Inland Deserts: A 35‐Year Response to Wind Stilling
Geophysical Research Letters, Volume 52, Issue 16, 28 August 2025.Abstract Global terrestrial stilling, the recent decrease in near‐surface wind speeds, has significant environmental impacts, including reduced dust storms and vegetation recovery in East Asia's drylands. However, direct evidence of stilling effects on sand dunes is limited due to the lack of long‐term observational data.
Li Wang +7 more
wiley +1 more source
Time and Length Scales of the Martian Atmospheric Turbulence as Observed by the InSight Lander
Geophysical Research Letters, Volume 52, Issue 16, 28 August 2025.Abstract We provide a statistical analysis of the Martian near‐surface atmospheric turbulence based on in situ wind observations from NASA's InSight lander. We focus on the variations in length and time scales of the Martian atmospheric turbulence caused by the diurnal cycle and changes in atmospheric dust loading.
Orkun Temel, Ozgur Karatekin
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Enhanced Seismic Backscattering for Lava Tube Detection
Geophysical Research Letters, Volume 52, Issue 16, 28 August 2025.Abstract Lava tubes, a common volcanic feature on terrestrial planets, offer critical insights into lava flow processes and may serve as future potential habitats for space crews and other facilities on the Moon and Mars. Seismic detection of these features is challenging as the irregular morphology and rough cave ceilings and walls generate complex ...
Jingchuan Wang +15 more
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High‐Pressure Sound Velocity of Fe–S–C Liquids Supports the Presence of Carbon in the Martian Core
Geophysical Research Letters, Volume 52, Issue 16, 28 August 2025.Abstract Carbon has been proposed as a major component in the Martian core alongside sulfur for its siderophile behavior during core‐mantle segregation. However, the core C content remains poorly constrained, due to uncertainties in both seismically observed core properties and the equation of state of C‐bearing Fe‐rich liquids. Here we conducted first‐
Xiujin Gao, Tao Liu, Zhicheng Jing
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The long winter model of Martian biology: A speculation [PDF]
, 1971 Carl Sagan
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The contribution of atmospheric aerosols to the Martian opposition effect [PDF]
, 1970 Jaylee M. Mead
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Resultant Force on Grains of a Real Sand Dune: How to Measure It?
Geophysical Research Letters, Volume 52, Issue 15, 16 August 2025.Abstract Barchan dunes usually appear under the action of one‐directional fluid flows, being found on Earth, Mars, and other celestial bodies; however, although ubiquitous in nature, understanding dune dynamics at the grain scale is challenging due to the vast number of grains involved.
R. F. Miotto +4 more
wiley +1 more source