East Java is characterised by a complex interaction of volcanic and tectonic processes it marked isolated eruptive centres scattered across the back-arc sedimentary basins. In 2006 large sediment hosted geothermal system named Lusi, pierced Kendeng basin in since then continues relentless eruption mud breccia. To investigate spatial structural relationships between arc domains, we perform local...

In this paper, we focus on the geological features of volcanic edifices and geochemistry intermediate–basic rocks Shaerbuti Mountain, which offer a new perspective recycled materials in study area. The consist calc-alkali basalt andesite formed an arc setting. porphyroclastic texture basalt, explosive breccia rock, distribution both agglomerate provide robust evidence that edifice exists Mounta...

Volcanic hazards assessment tools are essential for risk mitigation of volcanic activities. A number of offline volcanic hazard assessment tools have been provided, but in most cases, they require relatively complex installation procedure and usage. This situation causes limited usage of volcanic hazard assessment tools among volcanologists and volcanic hazards communities. In addition, volcani...

J. McCoy, R. C. Greenwood, and I. A. Franchi. University of Arizona, Lunar and Planetary Laboratory (LPL), Tucson, AZ 85721, USA, ([email protected]), Dept. Physical Sciences, Kingsborough Community College of the City University of New York, 2001 Oriental Blvd., Brooklyn N.Y. 100235, USA, and the Dept. of Earth and Environmental Sciences, The Graduate Center of CUNY, Dept. Earth and Pla...

The use of cement materials in construction continues to increase every year, consumes lots raw material and emits CO2 from clinker production. To eliminate this negative effect, alternative are needed. Trass is natural pozzolan which formed silica-alumina rich volcanic rocks. As supplementary cementitious material, trass sufficiently durable reduce proportion mixture, thus more environmentally...

Introduction: Impact-generated hydrothermal systems are often suggested as suitable habitats for primitive life [1,2], but fossil evidence of such colonization are rarely reported in the literature. Here, we report on the occurrence of putative microfossils in a hydrothermal system of the Dellen impact structure, Sweden. Impact-induced hydrothermal systems: Impacts in water-bearing targets can ...

[1] Sintering and densification are ubiquitous processes influencing the emplacement of both effusive and explosive products of volcanic eruptions. Here we sinter ash-size fragments of a synthetic National Institute of Standards and Technology viscosity standard glass at temperatures at which the resultant melt has a viscosity of ∼108-109 Pa.s at 1bar to assess sintering dynamics under near-sur...

Early beginnings of the Middle Triassic extension in areas surrounding western embayment Neotethys are evidenced formation small half-graben basins, local emergences underlying platform, and/or deposition coarse-grained breccia. The succession related to creation and infilling one these half-grabens is exposed on slopes base Mt. Vernar eastern Julian Alps, Slovenia. lowermost unit within Uggowi...

Volcanic eruptions are major natural disturbances with varied and complex consequences. Recent studies of how plants colonize newly created volcanic surfaces already have begun to clarify our understanding of succession. Because volcanoes create disturbance mosaics, it is imperative that we more fully understand the biotic responses. The 1883 eruption of Krakatau captured the world’s imaginatio...

T he excavations directed by Professor Dart at the Makapansgat Limeworks, and conducted mainly by myself at the site since 1960, were concerned during the 19631965 field seasons with an examination of the surface soil overlying the consolidated pink breccias, and of the contents of the abundant solution cavities which penetrate the underlying breccia mass to depths of up to 15