A geologic and geomorphologic study aimed at solving some geological geotechnical problems, regarding the massive seepage of meteoric waters in coastal cliffs Island Procida (Naples Bay, southern Italy), composed both tuffs loose pyroclastic deposits, has been carried out geosites Terra Murata (Middle Ages village cliff towards Corricella Bay) Centane-Panoramica (coastal facing on Tyrrhenian se...

We have statistically analyzed the spatially integrated far-infrared (FIR) emissions of the complete volumeand luminosity-limited sample of late-type (later than S0) Virgo cluster galaxies measured using the Infrared Space Observatory (ISO) by Tuffs et al. (2002) in bands centered on 60, 100 & 170μm. 30 out of 38 galaxies detected at all three wavelengths contain a cold dust emission component,...

Pumices, ashes, and tuffs from Mt. St. Helens and from Novarupta contain two principal forms of titanomagnetite: homogeneous grains with Curie temperatures in the range 350–500 C and oxyexsolved grains with similar bulk composition, containing ilmenite lamellae and having Curie temperatures above 500 C. Thermomagnetic analyses and isothermal annealing experiments in combination with stratigraph...

—The mid-Tertiary-age volcanoes, dikes, and sills of the Navajo volcanic field are classic and geologically-distinctive landforms of the Colorado Plateau. They are the products of structurally-controlled magma ascent, explosive eruptions, and deep post-eruptive exhumation. Igneous rock types include potassic lamprophyres, serpentinized tuffs, and exotic mafic and ultramafic intrusives. These ro...

Introduction and background: Zeolite minerals are hydrated framework aluminosilicates common to altered volcanic and volcanoclastic rocks, and the soils derived from them [1]. The mineralogy, chemistry, textural context, and abundance of zeolites provides insight into chemical weathering, hydrothermal, and metamorphic processes on Earth, in a variety of climates and tectonic settings. Zeolites ...

Cretaceous volcano-sedimentary basins and successions in the Korean Peninsula are located along NE-SW- NNE-SSW-trending sinistral strike–slip fault systems. Soft-sediment deformation structures (SSDS) of lacustrine sedimentary strata occur Wido, Buan, Haenam areas southwestern Peninsula. In this study, systematic geological, geochronological, geochemical investigations volcanic-sedimentary were...

Abstract Characterising and sourcing natural stones are essential for not only understanding the historical information carried by heritage buildings cultural sites, but also providing necessary data restoration conservations. Petrographic analyses polarised microscopy, along with integrated chemical acquired inductively coupled plasma-mass spectrometry (ICP-MS) X-ray diffraction (XRD) analysis...

The age of tuffaceous interlayers, represented by tuffs and tuffites, which are common in the Upper Jurassic-Lower Cretaceous deposits Western Siberia (the Bazhenovo, Tutleim Frolov Formations), is discussed. nature these interlayers associated with subglobal (transfer more than 1--2 thousand km) spread volcanic ash (0.001--0.1 mm) its sedimentation burial a vast epicontinental marine basin dur...