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Martian Regolith Simulant JSC Mars-1

JSC MARS-1: A Martian Soil Simulant

We have developed a simulant for the oxidized soil of Mars to support scientific research, engineering studies and education. JSC Mars-1 is the <1 mm size fraction of altered volcanic ash from a…
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Martian soil simulant available for scientific, educational study

Just as the world is entering an intensive and exciting phase in the exploration of Mars, a Martian soil simulant has been developed for use in scientific research, engineering studies, and…
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Ground deformation associated with the 1975 magnitude-7.2 earthquake and resulting changes in activity of Kilauea Volcano, Hawaii

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Volcanoes: Global Perspectives

Volcanoes are essential elements in the delicate global balance of elemental forces that govern both the dynamic evolution of the Earth and the nature of Life itself. Without volcanic activity, life…
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JSC Mars-1 - Martian regolith simulant

We have developed a simulant to the regolith of Mars for support of scientific research, engineering studies, and education. JSC Mars-1 is the <1 mm size fraction of a palagonitic tephra (glassy…

The 1986 Lake Nyos Gas Disaster in Cameroon, West Africa

Chemical, isotopic, geologic, and medical evidence support the hypotheses that (i) the bulk of gas released was carbon dioxide that had been stored in the lake's hypolimnion, (ii) the victims exposed to the gas cloud died of carbon dioxide asphyxiation, and (iii) the carbon dioxide was derived from magmatic sources.
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Significance of serpentine mud volcanism in convergent margins

Serpentinites are distinctive components of on-land exposures of former convergent-margin terranes throughout the world, commonly mingled with high-pressure, low-temperature blueschist-facies…
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Relative dating of Hawaiian lava flows using multispectral thermal infrared images: A new tool for geologic mapping of young volcanic terranes

The weathering of Hawaiian basalts in arid and semiarid environments is accompanied by change in their thermal infrared emittance spectra. The spectral differences can be measured and mapped with…
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Extinction and recolonization of local populations on a growing shield volcano.

Local populations at the base of an altitudinal cline were destroyed by two explosive eruptions within the last 2100 years, but natural recolonization restored the cline except for one young population that is genetically discordant with altitude.
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