Results 11 to 20 of about 541,326 (254)

Sediment geochemistry - a case study approach. [PDF]

The geochemistry of sediments is a very wide field and several important aspects must be taken into account, including, but not limited to, various methodological questions, the analysis of distribution patterns, determination of origins and the ...
Huebner, Ralf
core   +10 more sources

The influence of different deep-sea coral habitats on sediment macrofaunal community structure and function [PDF]

PeerJ, 2018
Deep-sea corals can create a highly complex, three-dimensional structure that facilitates sediment accumulation and influences adjacent sediment environments through altered hydrodynamic regimes.
Jill R. Bourque, Amanda W.J. Demopoulos
doaj   +2 more sources

In situ ecological quality status in the Kosterhavet National Park (Skagerrak, North Sea): a 100 year-perspective

Ecological Indicators, 2023
The Koster Trench is the deepest part of the Kosterfjord located in the Skagerrak at the north-west coast of Sweden. In 2009 the Kosterfjord was included into the Marine Protected area Kosterhavet National Park characterized by high biodiversity and a ...
Max Kankainen, Samuel Martinsson, Kjell Nordberg, Irina Polovodova Asteman   +3 more
doaj   +1 more source

Bioturbation of Thalassinoides from the Lower Cambrian Zhushadong Formation of Dengfeng area, Henan Province, North China

Journal of Palaeogeography, 2021
Bioturbation plays a critical role in sediment mixing and biogeochemical cycling between sediment and seawater. An abundance of bioturbation structures, dominated by Thalassinoides, occurs in carbonate rocks of the Cambrian Series 2 Zhushadong Formation ...
Yu-Chao Fan, Yong-An Qi, Ming-Yue Dai, Da Li, Bing-Chen Liu, Guo-Shuai Qing   +5 more
doaj   +1 more source

The Clay Mineralogy and Geochemistry of Sediments in the Beibu Gulf, South China Sea: A Record of the Holocene Sedimentary Environmental Change

Journal of Marine Science and Engineering, 2023
In this study, we analyzed the clay mineralogy and geochemistry of surface and drill core samples from the northeastern Beibu Gulf in order to unravel the sediment provenance of, and factors controlling, the sedimentary environment. The main clay mineral
Yao Guan, Yuxi Chen, Xiaoming Sun, Li Xu, Dong Xu, Zuhao Zhu, Wentao He   +6 more
doaj   +1 more source

Creek Dynamics Determine Pond Subsurface Geochemical Heterogeneity in East Anglian (UK) Salt Marshes

Frontiers in Earth Science, 2019
Salt marshes are complex systems comprising ephemerally flooded, vegetated platforms hydraulically fed by tidal creeks. Where drainage is poor, formation of saline-water ponds can occur.
Alec M. Hutchings, Gilad Antler, Gilad Antler, Jean V. Wilkening, Anirban Basu, Harold J. Bradbury, Josephine A. Clegg, Marton Gorka, Chin Yik Lin, Chin Yik Lin, Jennifer V. Mills, Andre Pellerin, Kelly R. Redeker, Xiaole Sun, Alexandra V. Turchyn   +14 more
doaj   +1 more source

Geochemical Equilibrium and Processes in Seawater

Geosciences, 2018
The geochemical equilibrium in seawater must be observed taking into account the chemical and geological, as well as biological, processes. The concept of equilibrium takes into account the composition of the system and the kinetics of the reactions ...
Željka Fiket, Goran Kniewald
doaj   +1 more source

Seasonal variations in pore water and sediment geochemistry of littoral lake sediments (Asylum Lake, MI, USA)

Geochemical Transactions, 2006
Background Seasonal changes in pore water and sediment redox geochemistry have been observed in many near-surface sediments. Such changes have the potential to strongly influence trace metal distribution and thus create seasonal fluctuations in metal ...
Miller Douglas, Haas Johnson R, Koretsky Carla M, Ndenga Noah T   +3 more
doaj   +1 more source

Geochemistry and mineralogy of a complex sedimentary deposit in the alkaline volcanic Lake Specchio di Venere (Pantelleria Island, south Mediterranean)

Journal of Limnology, 2018
Specchio di Venere is a peculiar, ambient temperature, geothermal, alkaline lake, with lake water oversaturated in carbonate phase where siliceous stromatolites actively grow despite the undersaturation of silica phases.
Marianna Cangemi, Paolo Madonia, Sergio Speziale   +2 more
doaj   +1 more source

Evaluating the influence of lake morphology, trophic status and diagenesis on geochemical profiles in lake sediments [PDF]

, 2010
Recent geochemical studies provide evidence that changes in vertical distributions of nutrients in lake sediments are driven by anthropogenic activities, based primarily on trends of increasing concentrations in upper sediment layers.
Pilditch, Conrad A., Trolle, Dennis, Hamilton, David P.   +2 more
core   +1 more source