40K, 226Ra, 232Th, 238U and 137Cs relationships and behaviour in sedimentary rocks and sediments of a karstic coastal area (Kaštela Bay, Croatia) and related rocks and sediments’ differentiation

Mikelić, Ivanka Lovrenčić; Oreščanin, Višnja; Barišić, Delko

doi:10.1007/s11356-021-14240-7

Cited by 8 publications

(3 citation statements)

References 44 publications

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“…The area is generally built of two types of sediments. The hinterland of the Bay and the Čiovo Island are built of upper Cretaceous limestones, while the coastal area is mostly built of flysch and flysch-like rocks deposited in Eocene [22,[43][44][45].…”

Section: Study Areamentioning

confidence: 99%

“…Along with the material from the coast, significant amounts of sediment may originate from the eastern part of the Bay. The eastern part of the Bay was under strong anthropogenic pressure that increased the fine particles load to this part of the Bay [32,43,49,55]. The Jadro River is also a source of sediment for the easternmost part of the Bay.…”

Section: Eastward Increasing Sedimentation Rate In Profiles In Sequencementioning

confidence: 99%

“…The north coast consists of Eocene flysch that produces a significant number of fine-grained particles by physical weathering and it acts as a source of sediment for the Bay [49]. It can also be a source of 137 Cs since it was detected in coastal stream sediments [43].…”

Section: Increased Sedimentation and Subsequent Increased Materials I...mentioning

confidence: 99%

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137Cs Sediment Profiles as a Tracer of Marine Sedimentation Processes in a Semi-Enclosed Bay Affected by Anthropogenic Releases—Example of Kaštela Bay (Adriatic Sea, Croatia)

Mikelić

Cukrov

Oreščanin

et al. 2022

Water

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Kaštela Bay was taken as a model to study sedimentation processes using the vertical sediment profiles of 137Cs massic activities. The aim was to distinguish the sedimentation conditions in different parts of the Bay and to partly determine the pathways of terrigenous input into the Bay. The purpose was to demonstrate that 137Cs profiles are applicable in differentiating sedimentation processes. It was found that mostly continuous, undisturbed sedimentation takes place in the central and south parts of the Bay; the sedimentation conditions in the west part of the Bay are more complicated. The west part is characterised by the extremely slow sedimentation of the coarse-grained sediment or even by erosion and selective resuspension of the fine-grained particles followed by resedimentation in other parts of the Bay. It was also observed that the upper 10 cm of the sediment is the most exposed to homogenisation. The strong influence of the Jadro River and anthropogenic activities in the east part of the Bay are reflected in the higher 137Cs activities, strong sediment mixing, and increased sediment input. This study shows that the 137Cs profiles can provide comprehensive insights for the whole study region when a sophisticated sampling layout is deployed. The results of the study are applicable to other aquatic environments with comparable processes and sedimentary environments.

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Section: Study Areamentioning

confidence: 99%

Section: Eastward Increasing Sedimentation Rate In Profiles In Sequencementioning

confidence: 99%