نتایج جستجو برای: contourite

تعداد نتایج: 105  

Journal: :Marine and Petroleum Geology 2021

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...

Journal: :Marine and Petroleum Geology 2021

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 ...

Journal: :Sedimentology 2023

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...

Journal: :Frontiers in Marine Science 2022

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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