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Asteroid sample return missions are critical for understanding our Solar System [PDF]

open access: yesNature Communications
Studying asteroids addresses a number of unknowns in planetary science. Investigating them makes use of asteroidal meteorites, remote observations and space-based missions.
Helena Bates
doaj   +2 more sources

The Coseismic Fault Weakening Processes Inferred from Frictional and Transport Properties of Fault Rocks, TCDP [PDF]

open access: yesScientific Drilling, 2007
No abstract available.
H. Sone, H. Noda, T. Shimamoto
doaj   +1 more source

(U–Th)/He thermochronometric mapping across the northeast Japan Arc: towards understanding mountain building in an island-arc setting

open access: yesEarth, Planets and Space, 2020
Topographic relief in arc-trench systems is thought to be formed by plate subduction; however, few quantitative investigations have so far been reported, with respect to the related mountain building process.
Shoma Fukuda   +3 more
doaj   +1 more source

A Spectroscopic Study of Mars-analog Materials with Amorphous Sulfate and Chloride Phases: Implications for Detecting Amorphous Materials on the Martian Surface

open access: yesThe Planetary Science Journal, 2023
The Chemistry and Mineralogy X-ray diffraction (XRD) instrument aboard the Curiosity rover consistently identifies amorphous material at Gale Crater, which is compositionally variable, but often includes elevated sulfur and iron, suggesting that ...
Reed J. Hopkins   +5 more
doaj   +1 more source

Small Magnitude Events Highlight the Correlation Between Hydraulic Fracturing Injection Parameters, Geological Factors, and Earthquake Occurrence

open access: yesGeophysical Research Letters, 2022
Hydraulic fracturing (HF) operations are widely associated with induced seismicity in the Western Canadian Sedimentary Basin. This study correlates injection parameters of 12,903 HF stages in the Kiskatinaw area in northeast British Columbia with an ...
Kilian B. Kemna   +4 more
doaj   +1 more source

Plausible Constraints on the Range of Bulk Terrestrial Exoplanet Compositions in the Solar Neighborhood

open access: yesThe Astrophysical Journal, 2023
Rocky planet compositions regulate planetary evolution by affecting core sizes, mantle properties, and melting behaviors. Yet, quantitative treatments of this aspect of exoplanet studies remain generally underexplored.
Rob J. Spaargaren   +4 more
doaj   +1 more source

Th e age of detrital zircon from metasedimentary rocks of the Ternuvate strata (West Azov block of the Ukrainian Shield)

open access: yesДоповiдi Нацiональної академiї наук України, 2023
The Ternuvate strata comprise metamorphic rocks that make up the Haichur arcuate structure, which is about 72 km long. Its western part lies within the Andriivka fault zone, which separates the Vovcha and Huliaipole blocks, while the eastern part is ...
G.V. Artemenko   +2 more
doaj   +1 more source

Quantitative Mineralogy of Planetary Silicate Ternary Mixtures Using Raman Spectroscopy

open access: yesEarth and Space Science, 2023
A 532‐nm‐excited lunar Raman spectrometer (LRS) has been selected as a scientific payload of the Chang'e‐7 mission, exploring mineralogy assemblages in the lunar south polar region.
Xiaobin Qi   +7 more
doaj   +1 more source

Salt Distribution from Freezing Intrusions in Ice Shells on Ocean Worlds: Application to Europa

open access: yesThe Planetary Science Journal, 2023
Several icy moons and dwarf planets appear to have hosted subsurface liquid water. Liquid water intruding upwards into the icy outer shells of these worlds freezes, forming ice and (from ocean solutes) non-ice solids.
Mariam Naseem   +5 more
doaj   +1 more source

Iron Mineralogy and Sediment Color in a 100 m Drill Core From Lake Towuti, Indonesia Reflect Catchment and Diagenetic Conditions

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Iron is the most abundant redox‐sensitive element on the Earth's surface, and the oxidation state, mineral host, and crystallinity of Fe‐rich phases in sedimentary systems can record details of water‐rock interactions and environmental conditions ...
Rachel Y. Sheppard   +9 more
doaj   +1 more source

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