نتایج جستجو برای: contourite
تعداد نتایج: 105 فیلتر نتایج به سال:
Abstract Contourite drifts form an important component of many deep-water sedimentary systems. Although their role as reservoirs, particularly along passive margins, is recognised, sealing potential has been relatively understudied, especially convergent margins. A range contourite recently recognised the Hikurangi subduction margin, off east coast North Island New Zealand. Those occurring in s...
Abstract The purpose of this study is to differentiate and characterise contouritic sands in two different locations with variable sediment compositions (siliciclastic bioclastic) based on a multiproxy approach that includes the analysis sedimentary texture, semi-quantitative geochemistry, microfacies ichnological information, as well Principal Component Analysis (PCA) applied geochemical data ...
The study examines bioclastic carbonate contourites that arise from the broad spectrum of bottom-current related sedimentary processes ranging deposition to erosion. result intermittent accumulation sediment are thin and condensed successions with abundant hiatuses. Such deposits poorly known, since broadly accepted contourite-facies model, bi-gradational sequence, characterizes environments co...
Contourite drifts are significant sedimentary features and provide clues for the reconstruction of paleoceanography paleoenvironment. Although they have been increasingly identified in world’s ocean, shallow-water contourite (< 300 m depth) remain poorly understood examples rare. This study documents a Middle Miocene depositional system southwest South China Sea by interpreting seismic r...
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