Results 41 to 50 of about 1,175 (180)
Remote Sensing, 2020 Volcanic-aeolian interactions and processes have played a vital role in landscape evolution on Mars. Martian lava fields and associated caves have extensive geomorphological, astrobiological, and in-situ resource utilization (ISRU) implications for ...
Lydia Sam +5 more
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Extrusion dynamics of deepwater volcanoes revealed by 3-D seismic data [PDF]
Solid Earth, 2019 Submarine volcanism accounts for ca. 75 % of the Earth's volcanic activity. Yet difficulties with imaging their exteriors and interiors mean that the extrusion dynamics and erupted volumes of deepwater volcanoes remain poorly understood.
Q. Sun +8 more
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Microspherules Formed by Lightning Strikes
Meteoritics &Planetary Science, EarlyView.Abstract Natural microspherules are formed by high‐temperature processes and are present throughout the geologic record to the present day. We report the discovery of large numbers of microspherules recovered from a rock pavement in the Pilbara region, Western Australia.
M. R. Boyd, M. J. Genge, A. G. Tomkins
wiley +1 more source
The Hawaiian cave planthoppers (Homoptera: Fulgoroidea: Cixiidae) - A model for rapid subterranean speciation? [PDF]
International Journal of Speleology, 1997 After the successful colonization of a single ancestral species in the Hawaiian Islands, planthoppers of the cixiid genus Oliarus underwent intensive adaptive radiation resulting in 80 described endemic species.
Hannelore Hoch
doaj
Point Cloud Registration for Lava Tube Surface Reconstruction Using Curvature-Optimized Projection
IEEE AccessThe surface reconstruction of point clouds is a key technology in lunar exploration. The generation of high-precision three-dimensional models of lunar lava tubes via surface reconstruction provides technical support for subsequent exploration.
Jiaqi Yao +7 more
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International Journal of Chemical Kinetics, Volume 58, Issue 4, Page 159-174, April 2026.ABSTRACT This study presents the green synthesis of silver (Ag‐NPs) and iron nanoparticles (Fe‐NPs) using aqueous leaf extract of Grewia optiva as a natural reducing and stabilizing agent. The extract was prepared using a Kjeldahl apparatus under controlled heating. Nanoparticle synthesis was optimized by varying pH, temperature, and salt concentration,
Muhammad Salman Khan +8 more
wiley +1 more source
Lava tube remelt by radiant heat and burning gasses [PDF]
International Journal of Speleology, 1998 Some volcanologists assume that interior surfaces of hot lava tubes can commonly he remelted by burning gases and radiant heat. Pending further data, this appears to be unlikely.
Kevin Allred
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The Effects of Carbonate Precipitation on the Physical Properties of Basalt
AGU Advances, Volume 7, Issue 2, April 2026.Abstract To avoid the negative consequences of climate change, there is an urgent need to remove carbon dioxide from the atmosphere. Carbon mineralization—the conversion of injected CO2 into stable carbonate minerals—offers a promising pathway for large‐scale, permanent geologic storage. While projects such as CarbFix have demonstrated its feasibility,
Jonathan Simpson +4 more
wiley +1 more source
Lava caves of Grande Comore, Indian Ocean: an initial reconnaissance, September 1997 [PDF]
International Journal of Speleology, 1998 What are believed to have been the first speleological investigations in the Comoros Islands were carried out on Grande Comore island between 7 and 13 September 1997.
Gregory J. Middleton
doaj
Diurnal Temperature Variability at Latitudinally Distinct Sites on the Moon
Earth and Space Science, Volume 13, Issue 3, March 2026.Abstract The thermophysical environment of the Moon plays a crucial role for future exploration, resource utilization and also in understanding its geological evolution. While global‐scale surface temperature distributions have been reasonably well constrained through numerical modeling and orbiter observations, recent in situ measurements have ...
G. Ambily +2 more
wiley +1 more source