Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
Thin continuous laminated bedding-parallel quartz veins (BPVs) with slip-striated and fibred vein walls occur within slates, or at their contact with sandstones, on the limbs of chevron folds in the Bendigc-Castlemaine goldfields, southeastern Australia. Two microstructural Types of BPV (I and II) have been previously recognized, and are confirmed in this study. Both types are concluded to have formed during and/or after crenulation cleavage (the first tectonic axial planar structure) in the wallrock slates, and during flexural-slip folding. Type I BPVs consist of syntaxial phyllosilicate inclusion trails, parallel to bedding, enclosing inclined inclusion bands, the latter formed by detachment of wallrock phyllosilicate particles from the walls of pressure solution-segmented discordant tension veins. Type I BPVs are formed by bedding-parallel shear, and grow in width by propagation of the discordant veins into the BPV walls. Type II veins are composed of quartz bands separated by wallrock slate seams which have split away from the vein wall during dilatant shear opening. They incorporate numerous torn-apart fragments of crenulated wallrock slate. Type I BPV inclusion band average spacing of 0.5 mm probably represents the magnitude of slip increments during stick-slip flexural-slip folding activity
High-energy megafloods: planetary settings and sedimentary dynamics V.R. Baker Late Quaternary catastrophic flooding in the Altai Mountains of south–central Siberia: a synoptic overview and an introduction to flood deposit sedimentology P.A. Carling, A.D. Kirkbride, S. Parnachov, P.S. Borodavko and G.W. Berger Great Holocene floods along Jökulsá á Fjöllum, north Iceland R.B. Waitt Glacial outwash floods November 1996 jökulhlaup on Skeibarársandur outwash plain, Iceland Á. Snorrason, P. Jónsson, O. SigurBsson, S. Pálsson, S. Árnason , S. Víkingsson and I. Kaldal
NICHOLAS, A. R & MCLELLAND, S. J. Hydrodynamics of a floodplain recirculation zone investigated by field monitoring and numerical simulation
ALEXANDER, J., FIELDING, C. R. & POCOCK, G. D. Floodplain behaviour of the Burdekin River, tropical north Oueensland, Australia
WALLING, D. E. Using fallout radionuclides in investigations of contemporary overbank sedimentation on the floodplains of British rivers
VAN DER PERK, M., BURROUGH, P. A., CULLING, A. S. C., LAPTEV, G. V., PRISTER, B., SANSONE, U. VOITESKHOVITCH, O. V. Source and fate of Chernobyl-derived radiocaesium on floodplains in Ukraine
GOMEZ, B., EDEN, D. N., HICKS, D. M, TRUSTRAUM, N. A., PEACOCK, D. H. & WILMSHURST, J. Contribution of floodplain sequestration to the sediment budget of the Waipaoa River, New Zealand
Flow and Transport Through Unsaturated Fractured Rock: An Overview D.D. Evans, T. C. Rasmussen, and T. J. Nicholson
Numerical Modeling of Isothermal and Nonisothermal Flow in Unsaturated Fractured Rock: A Review K. Pruess and J. S. Y. Wang
Dynamic Channeling of Flow and Transport in Saturated and Unsaturated Heterogeneous Media Chin-Fu Tsang, Yvonne W. Tsang, Jens Birkholzer, and Luis Moreno
Pressure Wave vs. Tracer Velocities Through Unsaturated Fractured Rock Todd C. Rasmussen
Faults and their deeper-level equivalents, shear zones are localized regions of higher strain which effectively accommodate differential movement in the Earth's crust and mantle during deformation of the lithosphere. Shear zones may be more precisely defined as approximately tabular regions of concentrated deformation and flow across which adjacent relatively undeformed rock units are offset.
The Masjed Daghi mineralization is located 30 km southeast of Jolfa city at the bank of Araxes River, northwest Iran. This area is situated in the AlborzAzarbaijan structural zone of Iran. The most widespread rocks in the mineralization area are andesite and trachyandesite, while there are rock units of latite tuff, andesitic agglomerate, and hornblende porphyry basalt in eastern hills and Eocene flysch in the southern part of the area. Several intrusive bodies are present in the study area, from which the dominant intrusive rock hosting the mineralization is diorite porphyry.
Fluid mechanics forms an essential part of the knowledge of petroleum engineers. Its applications can be found in almost every area of petroleum engineering including drilling, well completing, production technology, transportation and refining. The design methods and everyday practice of these special fields apply their own application-oriented hydraulics. These independently developed branches of applied fluid mechanics are often not very well integrated. There seems to be a need to treat these individual sections together within the general framework of continuum mechanics. In addition, the elegance and logical structure of this theory may influence the way of thinking of petroleum engineers. <...>
This book is not a revised version of “The geology of fluvial deposits” (Miall 1996), but an entirely different product. Much of the material in the 1996 book was compiled at a time when the methods of facies analysis and architectural element analysis were maturing and were becoming widely used by the sedimentological community. The lithofacies classification which I first proposed in 1977, and the method of architectural-element analysis, set out in major papers published in 1985 and 1988, were thoroughly documented in the 1996 book (Chaps. 5–7), and little has been done since then to require revisions or an upgrade.
Most palaeontologists will tell you they arrived in their job because, as a child, they loved prehistoric creatures, particularly dinosaurs. They just never grew up – or at least they never stopped seeing a world filled with wonder and excitement. In that sense, I never grew up either. I never stopped being the little kid staring up in awe at the 32-metre-long fossil of ‘Dippy’ the Diplodocus that fills the vaulted Central Hall of London’s Natural History Museum.