Abstract Integrated interpretation of regional geochemical data and results the numerical BM&PSM performed at east part Sea Azov northeast Black reveal a correlation between spatial distribution light hydrocarbons in seabed sediments investigated petroleum systems. The obtained point out that gaseous marine reflects geological structure sedimentary cover, maturity systems, located within ba...

A process-oriented study was carried out in White Smoke lake, Bunger Hills, East Antarctica, a perennially ice-covered (1.8 to 2.8 m thick) epishelf (tidally-forced) lake. The lake water has a low conductivity and is relatively well mixed. Sediments are transferred from the adjacent glacier to the lake when glacier ice surrounding the sediment is sublimated at the surface and replaced by accumu...

The Cenozoic sedimentary cover from the Ghomaride Complex (Internal Rif Belt) has been studied in Tetuan area (N Morocco) where a suite of successions shallow-marine to deep-marine environments crops out. For that purpose stratigraphic relations and petrological geochemical signatures have analyzed. Sandstone suites overall succession are heterogeneous testify multi-source area, response accret...

Analysis of internal structures of the Brooks Range ophiolite at the three largest and well-exposed klippen reveals a NE-SW structural grain that may parallel the original axis of magmatism of a slow spreading marginal ocean basin. Sub-parallel directions of lattice·fabrics in olivine of mantle peridotite and shape fabrics in pyroxene and plagioclase of layered gabbro indicate that asthenospher...

*Correspondence: Marianne Holmer, Department of Biology, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark e-mail: [email protected] Sulfide intrusion in seagrasses, as assessed by stable sulfur isotope signals, is widespread in all climate zones, where seagrasses are growing. Seagrasses can incorporate substantial amounts of 34S-depleted sulfide into their tissues wit...

We view the structures and features described in this atlas as sedimentary structures, albeit of a complex organo-physico-chemical origin. Just like their physical sedimentary structure counterparts (e.g., Pettijohn and Potter, 1964), they can be of great assistance in unravelling depositional palaeoenvironments inferred for ancient rock successions. Pettijohn and Potter (1964) included stromat...

The causes of mass extinctions and the nature of taxonomic radiations are central questions in paleobiology. Several episodes of taxonomic turnover in the fossil record, particularly the major mass extinctions, are generally thought to transcend known biases in the geologic record and are widely interpreted as distinct macroevolutionary phenomena that require unique forcing mechanisms. Here, by...

Correlations between mapping units of costal sedimentary basin and interpretation of piezocone test results are presented and discussed based on examples from Caravelas strandplain, (State of Bahia), Paranaguá (State of Paraná) and Guarujá bays (State of São Paulo), Brazil. Recognizing that the sedimentary environment was mainly controlled by sea level fluctuations led to the interpretation of ...

The optimal path cover problem is to find a minimum number of vertex disjoint paths which together cover all the vertices of the graph. Finding an optimal path cover for an arbitrary graph is known to be NP-complete [3]. However, polynornial-time algorithms exist for trees [4], cacti [4] and for interval graphs [9]. The solution presented in [2] For circular-arc graphs is known to be wrong. In ...