نتایج جستجو برای: volcanic breccia
تعداد نتایج: 15341 فیلتر نتایج به سال:
Introduction: The Glanerbrug ordinary chondrite fell April 7, 1990 through the roof of a house in the Netherlands [1,2]. The inhomogeneous character of the rock was recognized immediately [1] and Glanerbrug was officially classified as an LL breccia [3]. In later publications Glanerbrug was described as an L/LL5 chondrite (e.g., [4]). Based on the somewhat unclear and inconsistent classificatio...
Observations of interspecies interactions during volcanic activity provide important opportunities to study how organisms respond to environmental devastation. Japanese camellia (Camellia japonica L.) and its main avian pollinator, the Japanese White-eye (Zosterops japonica), offer an excellent example of such an interaction as key members of the biotic community on Miyake-jima, which erupted i...
: KC5 copper exploration prospect is located 80 Km to the northwest of Bardaskan and 4 Km to the Northeast of Dahaneh Siah copper mine in Khorasan Razavi. KC5 and Dahaneh Siah areas belong to Sabzevar geological Zone. Copper mineralization is observable mainly as secondary minerals such as Malachite and Chlorite which fills joints and fractures in a faulty contact at the boundary of the volcani...
The map ‘Geology of the Monte Banchetta – Punta Rognosa area (Troncea valley, Western Alps)’ details lithostratigraphy and structural setting a key sector in Alpine chain, characterized by close associations continental oceanic basements, meta-sediments. mapped unit (BRU), tectonically juxtaposed to different metaophiolitic units, comprises succession, made serpentinized mantle overlain Middle-...
The 2010 eruption of Eyjafjallajökull (Iceland) and the 2011 eruptions of Grimsvötn (Iceland), Cordon Caulle (Chile) and Nabro (Ethiopia) have drastically heightened the level of awareness in the general population of how volcanic activity can affect everyday life by disrupting air travel. The ingestion of airborne volcanic matter into jet turbines may cause harm by (1) abrasion of engine parts...
During the eruption of Eyjafjallajökull in April– May 2010 multi-wavelength Raman lidar measurements were performed at the CNR-IMAA Atmospheric Observatory (CIAO), whenever weather conditions permitted observations. A methodology both for volcanic layer identification and accurate aerosol typing has been developed. This methodology relies on the multi-wavelength Raman lidar measurements and the...
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