Five species of troglobitic crustaceans, previously known only from the Jameos del Agua marine lava tube in Lanzarote, Canary Islands, have been collected from wells in other, geologically older areas of the island. Most, and possibly all, of the endemic species inhabiting the Jameos del Agua probably entered the cave from adjacent crevicular groundwater habitats. The endemic hypogean fauna of ...

[1] Okmok volcano, located in the central Aleutian arc, Alaska, is a dominantly basaltic complex topped with a 10-km-wide caldera that formed circa 2.05 ka. Okmok erupted several times during the 20th century, most recently in 1997; eruptions in 1945, 1958, and 1997 produced lava flows within the caldera. We used 80 interferometric synthetic aperture radar (InSAR) images (interferograms) to stu...

[1] Lava flow mapping was conducted on a north-south transect of Olympus Mons using the European Space Agency’s Mars Express High Resolution Stereo Camera (HRSC) image H0037. The HRSC image was coregistered to Mars Orbiter Laser Altimeter, Thermal Emission Imaging System, and Mars Orbiter Camera data, enabling lava flow structures to be differentiated and mapped consistently across the shield. ...

A unique lunar property The moon has a unique property compared to the terrestrial and gas giant planets of our solar system. This property consists of the ability to record and preserve evidence of both external and internal events and processes over a time span that includes most of solar system history. Every exposed surface of the moon accumulates implanted solar wind atoms, is modified by ...

This article describes our implementation in Answer Set Programming of a reasoning system that models the flow of lava in volcanic eruptions. Our system can be employed in the validation of evacuation plans. To demonstrate the feasibility of such approach, we adopt a simplified yet realistic model of how lava flows, and apply it to altitude data from the Etna volcano.

Pleistocene basaltic lava flows, consisting of trachybasalt and basaltic trachyandesite, cover an area north-northwest of Shahre-Babak in southeastern Iran. The whole rock chemistry indicates that the lavas are dominantly alkaline and mildly calc-alkaline. Variation diagrams of SiO2 with major and trace elements are consistent with fractional crystallization processes involving olivine, pyroxen...

available online at http://meteoritics.org 1495 © Meteoritical Society, 2004. Printed in USA. Shocked rocks and impact glasses from the El’gygytgyn impact structure, Russia Eugene P. GUROV1 and Christian KOEBERL2* 1Institute of Geological Sciences, National Academy of Sciences of the Ukraine, 55b Oles Gontchar Street, Kiev 01054, Ukraine 2Department of Geological Sciences, University of Vienna,...

[1] Volcano observatories and researchers are recognizing the potential usefulness of thermal imaging cameras both before and during volcanic eruptions. Obvious applications include measurements of the surface temperatures of active lava domes and lava flows to determine the location of the most active parts of these potentially hazardous features. If appropriate precautions are taken, the new ...