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Channel-levee systems are frequently interpreted as having a long history of cut-and-fill by channel-shaped features of different scales. Results from a simple geometric model based on a centerline migration algorithm combined with a vertical channel trajectory show that an incising-to-aggrading trajectory of a single channel can produce realistic morphologies similar to systems observed on the seafloor and subsurface, including features such asRead more
Turbidite bed thickness distributions are often interpreted in terms of power laws, even when there are significant departures from a single straight line on a log–log exceedence probability plot. Alternatively, these distributions have been described by a lognormal mixture model. Statistical methods used to analyse and distinguish the two models (power law and lognormal mixture) are presented here. In addition, the shortcomings of some frequentlyRead more
Deep-water sandstone beds of the Oligocene Fusaru Sandstone and Lower Dysodilic Shale, exposed in the Buzau Valley area of the East Carpathian flysch belt, Romania, can be described in terms of the standard turbidite divisions. In addition, mud-rich sand layers are common, both as parts of otherwise 'normal' sequences of turbidite divisions and as individual event beds. Eleven units, interpreted as the deposits of individual flows, were densely sampled,Read more
See details at AAPG's website: http://www.aapg.org/meetings/houston02/meeting/Read more
Fluid escape structures, sedimentary structures that form during escape of pore fluid from loose, unconsolidated deposits, are briefly reviewed. Most fluid escape structures are postdepositional in origin. However, some vertical fluid escape structures and convolute lamination probably have formed during sedimentation. The postdepositional features may represent modified primary or previously formed postdepositional structures or entirely new structures.Read more