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1.848  Articles
1 of 186 pages  |  10  records  |  more records»
The Bizerte Lagoon (Tunisia) functions as a sedimentation environment characterized by receiving allochthonous sediments mainly transported by the Ben Hassine, Rharek and Guenich streams, as well as marine sediments from the Mediterranean Sea. It is subje... see more

Autochthonous calcite precipitation is an important process for C-fixation in hard-water lakes, which is mainly induced by the photosynthesis of planktonic microorganisms. Among these, the widespread calcifying green alga Phacotus lenticularis (Ehrenberg)... see more

Lagoon infill from autochthonous sediment, derived from reef flats, is the dominant constructional processes in coral reef environments once reefs attain a stable elevation with respect to sea-level. Tide- and wave-induced currents were measured and the h... see more

In this study, we estimated the depth profiles of nutrients in the natural wetland “Ciénega Tamasopo” (Central Mexico) located in the Neotropic region. The concentration profiles of Corg, NT, Corg/NT ratios and isotopic composition (d13C, d15N) were deter... see more

Total organic carbon (TOC), total sulfur (S) and Rock-Eval pyrolysis analyzes were performed in 41 samples collected along the SP-60-PR core, from the Irati Formation, northwestern of Paraná Basin. This work aims to show how organic matter content evolved... see more

Bottom sediment is a natural trap for organic matter and different kinds of pollutants. The accumulation of large amount of organic matter gives rise to the eutrophication of the aquatic ecosystems. The analyses of the quantity and quality of the organic ... see more

This study characterizes the quantity and quality of organic matter present in surface sediments of the NE sector of Guanabara Bay (SE, Brazil), based on geochemical and statistical analysis. The geochemical analyses included stable isotopes in sedimentar... see more

The Batain coast along the northeastern margin of Oman between Ra’s Al-Hadd and Ra’s Jibsch, is comprised of Permian to Late Cretaceous complex stratigraphy in a tectonically deformed area recording Permian rifting to late Cretaceous Tethys closure events... see more

This study is based on field, petrographic and geochemical investigations of Hajar Supergroup autochthonous rocks: Ruus Al Jibal Group- Musandam Peninsula, and Akhdar Group- Jebel Akhdar, Oman and U.A.E., and para-autochthonous Maqam Formation-Sumeini Gro... see more

1 of 186 pages  |  10  records  |  more records»