Results 11 to 20 of about 2,771 (192)

Mineral Content Estimation of Lunar Soil of Lunar Highland and Lunar Mare Based on Diagnostic Spectral Characteristic and Partial Least Squares Method

Applied Sciences, 2022
Extraction of mineral and rock information of lunar regolith is of far-reaching significance to the study of material composition, geological structure and historical evolution of lunar regolith.
Ping Zhou, Zhe Zhao, Guangyuan Wei, Hongyuan Huo   +3 more
doaj   +1 more source

Cosmogenic nuclide weathering biases: corrections and potential for denudation and weathering rate measurements [PDF]

Geochronology, 2022
Cosmogenic radionuclides (CRNs) are the standard tool to derive centennial-to-millennial timescale denudation rates; however, it has been demonstrated that chemical weathering in some settings can bias CRNs as a proxy for landscape denudation. Currently,
R. F. Ott, S. F. Gallen, D. E. Granger
doaj   +1 more source

Self-Organization Characteristics of Lunar Regolith Inferred by Yutu-2 Lunar Penetrating Radar

Remote Sensing, 2021
Most previous studies tend to simplify the lunar regolith as a homogeneous medium. However, the lunar regolith is not completely homogeneous, because there are weak reflections from the lunar regolith layer.
Xiang Zhang, Wenmin Lv, Lei Zhang, Jinhai Zhang, Yangting Lin, Zhenxing Yao   +5 more
doaj   +1 more source

Additive Manufacturing and Spark Plasma Sintering of Lunar Regolith for Functionally Graded Materials

Spool, 2021
This study investigates the feasibility of in-situ manufacturing of a functionally graded metallic-regolith. To fabricate the gradient, digital light processing, an additive manufacturing technique, and spark plasma sintering were selected due to their ...
Mathilde Laot, Belinda Rich, Ina Cheibas, Jia Fu, Jia-Ning Zhu, Vera Popovich   +5 more
doaj   +3 more sources

Deducing Lunar Regolith Porosity From Energetic Neutral Atom Emission

Geophysical Research Letters, 2022
The porosity of the upper layers of regolith is key to the interaction of an airless planetary body with precipitating radiation, but it remains difficult to characterize.
P. S. Szabo, A. R. Poppe, H. Biber, A. Mutzke, J. Pichler, N. Jäggi, A. Galli, P. Wurz, F. Aumayr   +8 more
doaj   +1 more source

Soil fertility interactions with Sinorhizobium-legume symbiosis in a simulated Martian regolith; effects on nitrogen content and plant health.

PLoS ONE, 2021
Due to increasing population growth and declining arable land on Earth, astroagriculture will be vital to terraform Martian regolith for settlement. Nodulating plants and their N-fixing symbionts may play a role in increasing Martian soil fertility.
Franklin Harris, John Dobbs, David Atkins, James A Ippolito, Jane E Stewart   +4 more
doaj   +1 more source

Perchlorate and Agriculture on Mars

Soil Systems, 2021
Perchlorate (ClO4−) is globally enriched in Martian regolith at levels commonly toxic to plants. Consequently, perchlorate in Martian regolith presents an obstacle to developing agriculture on Mars.
Christopher Oze, Joshua Beisel, Edward Dabsys, Jacqueline Dall, Gretchen North, Allan Scott, Alandra Marie Lopez, Randall Holmes, Scott Fendorf   +8 more
doaj   +1 more source

Regolith Inhibits Salt and Ice Crystallization in Mg(ClO4)2 Brine, Implying More Persistent and Potentially Habitable Brines on Mars

The Planetary Science Journal, 2023
On Mars, liquid water may form in regolith when perchlorate salts absorb water vapor and dissolve into brine, or when ice-salt mixtures reach their melting temperature and thaw.
Andrew O. Shumway, David C. Catling, Jonathan D. Toner   +2 more
doaj   +1 more source

Geochemistry of a spheroidal weathering profile in a tropical mountainous landscape, Rio de Janeiro, Brazil

Anais da Academia Brasileira de Ciências, 2022
Boulders are an important material in debris flow and their source is coupled with spheroidal weathering profiles that produce corestones. The goal of this work was to establish the geochemical transformations that produced corestones and distinguished ...
CARLA S. SILVEIRA, JULIANA G. RODRIGUES, DENISE R. ARARIPE, ALFREDO V.B. BERNEDO, JOSÉ L. MANTOVANO   +4 more
doaj   +1 more source

Gas-Driven Regolith-Sampling Strategy for Exploring Micro-Gravity Asteroids

IEEE Access, 2020
Small celestial bodies contain abundant scientific information to understand the origin and evolution of the solar system. The acquisition and analysis of regolith sample is the most direct and effective way to explore the geological construction of ...
Zeng Zhao, Shen Yin, Qichen Sun, Zhongwang Yin, Deyun Liu, Haibin Yu, Nai Zhang, Jun Li, Zhixiao Yao, Chaoyue Chao, Tao Zhang   +10 more
doaj   +1 more source