A5080250559- Planetary Science and Exploration
- Astro and Planetary Science
- Space Exploration and Technology
- Geology and Paleoclimatology Research
- Space Science and Extraterrestrial Life
- Methane Hydrates and Related Phenomena
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Seismic Waves and Analysis
- Geological Studies and Exploration
- Isotope Analysis in Ecology
- Geochemistry and Geologic Mapping
- Spaceflight effects on biology
- earthquake and tectonic studies
- Paleontology and Stratigraphy of Fossils
- Geomagnetism and Paleomagnetism Studies
- Hydrocarbon exploration and reservoir analysis
- Geophysics and Sensor Technology
- AI in cancer detection
- Spacecraft and Cryogenic Technologies
- Archaeology and ancient environmental studies
- Gene expression and cancer classification
- Atmospheric Ozone and Climate
- Radiomics and Machine Learning in Medical Imaging
- Modular Robots and Swarm Intelligence
Geological Exploration Technology Institute of Jiangsu Province
2025
Institut de physique du globe de Paris
2025
University of Science and Technology of China
2021-2024
University of Copenhagen
2020-2023
Hefei University
2023
Sun Yat-sen University
2023
Université Claude Bernard Lyon 1
2018-2022
École Normale Supérieure de Lyon
2018-2022
Laboratoire de Géologie de Lyon : Terre, Planètes et Environnement
2018-2022
Centre National de la Recherche Scientifique
2018-2022
Single seismometer structure Because of the lack direct seismic observations, interior Mars has been a mystery. Khan et al. , Knapmeyer-Endrun and Stähler used recently detected marsquakes from deployed during InSight mission to map (see Perspective by Cottaar Koelemeijer). likely 24- 72-kilometer-thick crust with very deep lithosphere close 500 kilometers. Similar Earth, low-velocity layer probably exists beneath lithosphere. The is highly enriched in radioactive elements that help heat...
The European Space Agency (ESA) and Roscosmos ExoMars mission will launch the "Rosalind Franklin" rover in 2022 for a landing on Mars 2023.The goals of are to search signs past present life Mars, investigate water/geochemical environment as function depth shallow subsurface, characterize surface environment. To meet these scientific objectives while minimizing risk landing, 5-year-long site selection process was conducted by ESA, during which eight candidate sites were down selected one:...
The Mars' climate is cold and dry in the most recent epoch, liquid water activities are considered extremely limited. Previous orbital data only show sporadic hydrous minerals northern lowlands of Mars excavated by large impacts. Using short-wave infrared spectral obtained Zhurong rover China's Tianwen-1 mission, which landed southern Utopia Planitia on Mars, we identify hydrated sulfate/silica materials Amazonian terrain at landing site. These associated with bright-toned rocks, interpreted...
The Zhurong rover of the Tianwen-1 mission landed in southern Utopia Planitia, providing a unique window into evolutionary history Martian lowlands. During its first 110 sols, investigated and categorized surface targets igneous rocks, lithified duricrusts, cemented soils sands. analysed by using laser-induced breakdown spectroscopy onboard Zhurong, show elevated water contents distinct compositions from those rocks. duricrusts are likely formed via vapor-frost cycling at atmosphere-soil...
Abstract The basin‐filling materials of the northern lowlands, which cover approximately one third Mars' surface, record long‐term evolution geology and climate. buried stratigraphy was inferred through analyses impact crater mineralogy, detected using data acquired by Compact Reconnaissance Imaging Spectrometer for Mars. Examining 1045 craters across we find widespread olivine pyroxene diverse hydrated/hydroxylated minerals, including Fe/Mg smectite, chlorite, prehnite, hydrated silica....
The European Space Agency and Roscosmos' ExoMars rover mission, which is planned to land in the Oxia Planum region, will be dedicated exobiology studies at surface subsurface of Mars. a clay-bearing site that has preserved evidence long-term interaction with water during Noachian era. Fe/Mg-rich phyllosilicates have previously been shown occur extensively throughout landing area. Here, we analyze data from High Resolution Imaging Science Experiment (HiRISE) Compact Reconnaissance...
Abstract Earth’s mantle has a two-layered structure, with the upper and lower domains separated by seismic discontinuity at about 660 km (refs. 1,2 ). The extent of mass transfer between these throughout history is, however, poorly understood. Continental crust extraction results in Ti-stable isotopic fractionation, producing isotopically light melting residues 3–7 . Mantle recycling components can impart Ti isotope variability that is trackable deep time. We report ultrahigh-precision 49...
InSight landed on Mars November 26, 2018, in western Elysium Planitia. The crust beneath the lander is subject to complex geologic history next great topographic and crustal dichotomy of Mars. Understanding this part Martian subsurface would aid future investigations internal structure planet based seismic datasets collected by Seismic Experiment for Interior Structure (SEIS) instrument. Here, we investigate composition from analysis mineralogy morphology exposures impact craters as well...
Abstract The InSight lander rests on a regolith‐covered, Hesperian to Early Amazonian lava plain in Elysium Planitia within ∼27‐m‐diameter, degraded impact crater called Homestead hollow . km cm‐scale stratigraphy beneath the is relevant mission's geophysical investigations. Geologic mapping and statistics indicate that ∼170 m of mostly basaltic lavas are underlain by Noachian (∼3.6 Ga) materials possible sedimentary origin. Up ∼140 this volcanic resurfacing occurred at 1.7 Ga, accounting...
Abstract The NASA InSight mission on Mars is a unique opportunity to study atmospheric processes both from orbit and in situ observations. We use post‐landing high‐resolution satellite images monitor dust devil activity during the first 8 months of mission. perform mapping semiautomatic detection newly formed tracks analyze their characteristics (sizes, azimuths, distances, directions motion). find large number appearing shortly after landing, followed by significant decrease late winter,...
The composition of Mars' crust is crucial for reconstructing the internal structure and geological evolution planet. Recent observations based on high-resolution near-infrared spectral data have identified plagioclase-bearing units Martian surface, appearing in multiple distant locations [1],[2]. characteristics imply extremely low content basic minerals, indicating potential lithology ferroan anorthosites [1] or felsic rocks [2], challenging classic view that primarily basaltic. However,...
Fluvial and sedimentary deposits on Mars provide key evidence of surface water activity in geologic times. On the contrary, distribution characteristics Mars’ past groundwater remain poorly understood, limiting our ability to reconstruct early climate regimes. Eberswalde crater, known for hosting most well-preserved deltaic deposit Mars, exhibits meandering lobes inverted channels [1,2], as sustained fluvio-lacustrine a standing body [2-4]. In this study, we present detailed...
Abstract The Curiosity rover has detected diverse lithologies in float rocks and sedimentary units on the Gale crater floor, interpreted to have been transported from rim. To understand their provenance, we examine mineralogy geology of Gale's rim, walls, using high‐resolution imagery infrared spectra. While no significant differences bedrock spectral properties were observed within most Thermal Emission Imaging System Compact Reconnaissance Spectrometer for Mars (CRISM) scenes, some CRISM...
Abstract Mars’ transition from an early “warm and wet” to a “cold dry” environment left fingerprints on the geological record of fluvial activity Mars. The morphological mineralogical observations aqueous provided varying constraints condition duration liquid water Martian surface. In this study, we surveyed mineralogy alluvial fans deltas investigated hydrated silica-bearing deposits associated with some these landforms. Using CRISM data, identified 35 locations across Mars silica in...
SUMMARY The horizontal-to-vertical (H/V) spectral ratio inversion is a traditional technique for deriving the local subsurface structure on Earth. We calculated H/V from ambient vibrations at different wind levels InSight landing site, Mars, and also computed S-wave coda of martian seismic events (marsquakes). Different curves were obtained periods marsquakes. From vibrations, recordings during low-wind are close to instrument self-noise level. During high-wind periods, highly contaminated...
Abstract Knowledge of Martian crust and uppermost mantle aid us studying the planet's evolution. NASA's InSight mission provides seismic data being used to reveal interior structure. Most studies have focused on crustal structure beneath lander, but other regions has remained poorly known. We use surface‐wave investigate a large region along Medusa Fossae Formation dichotomy. adopt largest‐magnitude marsquake (S1222a) that been recorded, which both Rayleigh‐ Love‐wave signals. measure...
Abstract Large impacts are one of the most important processes shaping a planet’s surface. On Mars, early formation Martian crust and lack large impact basins (only four unambiguously identified: Hellas, Argyre, Utopia, Isidis) indicates that part records Mars’ history is missing. Here we show, in Chryse Planitia, scarcity buried craters near-circular area could be explained by pre-existing topographic depression with more intense resurfacing. Spatially correlated positive Bouguer anomaly,...
The terrestrial planets endured a phase of bombardment following their accretion, but the nature this late accreted material is debated, preventing full understanding origin inner solar system volatiles. We report discovery nucleosynthetic chromium isotope variability (μ 54 Cr) in Martian meteorites that represent mantle-derived magmas intruded crust. μ Cr variability, ranging from −33.1 ± 5.4 to +6.8 1.5 parts per million, correlates with magma chemistry such samples having assimilated...
Here we report detections of Fe/Mg phyllosilicates and hydrated silica in discrete stratigraphic units within the knobby terrains Acidalia Planitia made using data acquired by Compact Reconnaissance Imaging Spectrometer for Mars.Fe/Mg are detected knobs that were eroded during southward retreat dichotomy boundary.A second later unit, now to steep-sided platforms embaying knobs, contains silica, which may have formed via localized vapor weathering, thin-film leaching, or transient water...
Double seismic zones are commonly observed in the subducting slabs a global scale, serving as ideal examples for studying seismogenetic mechanism of intermediate-depth earthquakes. In this study, we relocate earthquakes and determine velocity models using double-difference tomography method northern Chile subduction zone where double exists. The results suggest that is located at about 50–140 km depth, with an interval approximately 20 between two zones. upper characterized by relatively...