Abstract Pandan volcano is one of the dormant Quaternary volcanoes in East Java characterized by several volcanic centers which extend to northern part. This study aimed identify rocks and intrusions Jari - Krondonan area, Bojonegoro as well determine their petrology mineralogical characteristics. Geological observation was conducted obtain primary data collect samples. Thin section samples pre...

Eocene intermediate to felsic subvolcanic rocks of the Torud-Ahmad Abad magmatic belt (TAMB), in northern part Central Iran zone, are exposed between Torud and Ahmad regions South-Southeast Shahrood. These igneous include hypabyssal dacite, trachyte, andesite, trachy-andesite, basaltic andesite; they mainly composed phenocrysts microcrystalline groundmass pyroxene, amphibole, plagioclase, with ...

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...

[1] We have investigated the effects of crystallization and oxidation on the visible and nearinfrared (VISNIR) and mid-infrared (mid-IR) spectra of materials with a Shergotty-NakhlaChassigny (SNC) basaltic composition in order to investigate potential links between Martian VISNIR spectra, Martian mid-IR spectra, and SNC meteorite data. SNC basalt samples of varying crystallinities were synthesi...

The Miocene pyroxene andesite lava flows are exposed in southeastern edge of Urumieh Dokhtar Magmatic assemblage in Iran. The hypocrystalline andesite in parts contain conspicuous co-magmatic igneous enclaves which are dark grey and occur mostly as spherical and occasionally as ribbon shapes with some showing chilled margins. Petrographic study shows that the ribbon type enclaves have been form...

Rock formation as parent material in Pagedongan Village, Banjarnegara influences the properties of soil formed. The purpose this research was to identify morphology and classification according USDA Taxonomy, National Soil Classifications, World Reference Base for Soils. This study uses a survey method by determining observation points based on rock formation, namely Peniron Formation, with pyr...