Physical properties, morphology and petrological characteristics of pumices from the Central Indian Ocean Basin. Acta Geol. Sin. 85, 826-839.Physical Properties,morphology and petrological characteristics of pumice from the central Indian Ocean Basin. Kalangutkar G Niyati,Ier D Sridhar,Ilangovan Dan...
Physical properties of tuffs from a scientific borehole at Alban hills volcanic district (central Italy). Tectonophysics 471 (1), 161-169.Vinciguerra, S., Del Gaudio, P., Mariucci, M.T., Marra, F., Meredith, P.G., Montone, P., Pierdominici, S. and Scarlato, P., 2009. Physical ...
Changes in soil properties after application of dairy factory effluent to New Zealand volcanic ash and pumice soils In field studies, we assessed the effects of irrigation with dairy factory effluent on the surface (0-10 cm) properties of 3 rhyolytic tephra soils. Horoti... GP Sparling,LA ...
Physical Properties The textures of the pumice flow and fall deposits are distinct. The fall deposits consist of fine-grained, well-sorted, fragments of pumice; whereas the pumice flow is characterized by abundant pumice lumps of various sizes in an impure matrix of c...
Greatest fractionation from the −1.0–0.0−∅ grain sizes reflects relatively lower pumice particle density in this range and segregation in the formative stages of the surge cloud. Extensive pumice rounding indicates abrasion during bed-load transport. Flow of pyroclastic debris in the ...
(Fig.11b). In the SEM image corresponding to the "Rosa Silva" ignimbrite, a cluster of crystals can be easily identified, while in the "Lomo Tomás de León" ignimbrite, what can be seen in greater proportion is the matrix surrounding a fragment of pumice. The matrix of the "Rosa Silva...
The crystallographic properties of synthetic hydroxyapatite (HA) have been found to be influenced by the incorporation of trace elements (Table1). Some of the trace elements expand the crystal cell lattice parameters of synthetic HA along the a-axis (Fe2+, Fe3+, Sr2+and Zn2+(molar fraction...
The abundance of pumiceous concretions within clayey units indicates that volcanic activity was coeval with deposition of the sequence. The upper unit of the sequence is characterized by a high-salinity clayey layer formed in an arid climate that prevailed from the beginning of the Holocene (...
This study examines the physical and mechanical properties of local earthen clay bricks and their production in Peshawar city. There is a lack of relevant data about the excellence of locally made bricks and the selection of proper bricks kiln for any intended use of suitable bricks. Initially, ...
the tread cap layer is comprised of a plurality of individual circumferential load-bearing zones of rubber compositions, which exhibit graduated physical properties, and which extend from the outer running surface of the tread cap layer radially inward to said tread base layer. In one aspect, the...