Results 71 to 80 of about 21,945 (225)

Multidisciplinary Analyses of Terrestrial Samples Used to Interpret an Inorganic Origin (Anhydrite:Ce3+) for the 304 and 325‐nm Doublet Fluorescence Detected by the Mars 2020 SHERLOC Instrument at Jezero Crater

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Doublet fluorescence at 304 and 325‐nm under deep ultraviolet (DUV) excitation was detected on Mars at Jezero crater by the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument onboard the Mars 2020 rover Perseverance.
N. C. Haney, R. V. Morris, R. S. Jakubek, J. V. Clark, J. I. Simon, W. P. Buckley, R. T. Downs, E. B. Rampe, R. M. G. Armytage, T. G. Graff, A. S. Burton, F. M. McCubbin, E. L. Berger, V. M. Tu, P. D. Casbeer, S. A. Mertzman, K. H. Williford, E. L. Scheller, T. Fornaro, S. Siljeström, A. Steele, K. P. Hand, T. J. Lapen   +22 more
wiley   +1 more source

Relative ages of lava flows at Alba Patera, Mars [PDF]

Many large lava flows on the flanks of Alba Patera are astonishing in their volume and length. As a suite, these flows suggest tremendously voluminous and sustained eruptions, and provide dimensional boundary conditions typically a factor of 100 larger ...
Pieri, David C., Schneeberger, Dale M.
core   +1 more source

Exploring Terrestrial Lava Tubes as Martian Analogs (I): Multi‐Analytical Study of Mineralization Processes in Cueva del Vidrio, La Palma (Canary Islands)

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract The study of terrestrial lava tubes is essential for understanding geological processes occurring during volcanic activity on other planetary bodies, such as Mars. These processes lead to the formation of minerals analogous to those found on other planets.
F. Alberquilla, J. Aramendia, L. Coloma, I. Martínez‐Arkarazo, G. Arana, A. Gonzalez, R. Gisbert, E. Díaz, P. Cobiella, M. Perestelo, J. M. Madariaga   +10 more
wiley   +1 more source

A Sinuous Tumulus over an Active Lava Tube at Klauea Volcano: Evolution, Analogs, and Hazard Forecasts [PDF]

Inflation of narrow tube-fed basaltic lava flows (tens of meters across), such as those confined by topography, can be focused predominantly along the roof of a lava tube.
Bleacher, Jacob E., Orr, Tim R., Patrick, Matthew R., Wooten, Kelly M.   +3 more
core   +1 more source

GLOBE Cave Protocol Field Guide: Comparing Surface and Subterranean Environments [PDF]

, 2003
The GLOBE Cave Protocol Field Guide utilizes existing GLOBE protocols to explore an extreme environment. Caves provide an opportunity to utilize GLOBE protocols to investigate underground environments and compare them to surface environments. Outside the
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

Substitution of Fe3+ into anorthite in oxidized, Al‐deficient ferrobasaltic systems with implications for the petrogenesis of angrite meteorites

Meteoritics &Planetary Science, Volume 61, Issue 3, Page 427-443, March 2026.
Abstract Angrite meteorites are critically silica‐undersaturated igneous rocks with high Ca/Al and Fe/Mg, along with depletion in volatile lithophile elements Na and K such that they crystallize anorthite along with olivine and calcic pyroxene. The anorthite in angrites contains substantial Fe, and in NWA 1670 and NWA 1296, it is present at major ...
Seann J. McKibbin, Dominique Tanner, Hugh St. C. O'Neill   +2 more
wiley   +1 more source

Chemical deposits in volcanic caves of Argentina [PDF]

International Journal of Speleology, 1998
During the last Conference of the FEALC (Speleological Federation of Latin America and Caribbean Islands) which was held in the town of Malargue, Mendoza, in February 1997, two volcanic caves not far from that town were visited and sampled for cave ...
Carlos Benedetto, Paolo Forti, Ermanno Galli, Antonio Rossi   +3 more
doaj  

Cave dwelling Onychophora from a Lava Tube in the Galapagos

Subterranean Biology, 2015
A new population of velvet worms (Onychophora) inhabiting a lava tube cave in the island of Santa Cruz, Galapagos, is reported here. The population size is large, suggesting that they may be troglophilic. Its members are darkly pigmented, with no obvious
Luis Espinasa, Radha Garvey, Jordi Espinasa, Christina A. Fratto, Steven Taylor, Theofilos Toulkeridis, Aaron Addison   +6 more
doaj   +1 more source

Prospective Lava Tubes at Hellas Planitia

, 2020
16
Paris, Antonio, Davies, Evan, Tognetti, Laurence, Zahniser, Carly   +3 more
openaire   +2 more sources

Toward a model for leveed lava flows [PDF]

Many lava flows have two distinct volumetric components during emplacement. First, there is a component actively flowing in accordance with Newtonian or other constitutive relations.
Baloga, Stephen
core   +1 more source