The yearly nutrient supply from land and atmosphere to the study area in SW Kattegat is 10 900 tons of N and 365 tons of P. This is only few percent of the supply from adjacent marine areas, as the yearly transport through the study area is 218 000 tons of N and 18 250 tons of P. Yearly net deposition makes up 1340 tons of N (on average 2.5 g m yr) and 477 ton of P (on average 0.9 g m yr). Shal...

Ten road cut samples collected from five lithological sections of Lokoja sandstone formation in the Middle Niger basin were investigated using integrated granulometric, petrographic and geochemical analyses. Results of grain size analysis; standard deviation and skewness which ranges from 0.08 to -0.05 and 0.59 to -0.07 respectively suggest very well sorted to moderately well sorted sediments. ...

Nest site has influence on incubation duration and hatching success of two Neotropical turtles, the giant Amazon River turtle (Podocnemis expansa) and yellow-spotted side-neck turtle (Podocnemis unifilis--'Tracajá'). The 2000 and 2001 nesting seasons have been monitored at the Javaés River in Bananal Island, Brazil. Although they nest on the same beaches, there is a separation of the nesting ar...

North Africa experienced dramatic changes in hydrology and vegetation during the late Quaternary driven by insolation-induced shifts of the tropical rain belt and further modulated by millennial-scale droughts and vegetation-climate feedbacks. While most past proxy and modelling studies concentrated on the temporal and spatial dynamics of the last African humid period, little is known about the...

Abstract. Alkenone signatures preserved in marine sedimentary records are considered one of the most robust paleothermometers available and often used as a proxy for paleoproductivity. However, important gaps remain regarding provenance fate alkenones, well their impact on derived environmental signals sediments. Here, we analyze abundance, distribution radiocarbon (14C) age alkenones bulk sedi...

This paper concerns the study of ripples that occur on windward Barchan dunes from field Najaf governorate, Iraq. These consist mainly sand sediments with variable sizes, including medium, fine, and very fine sands. Quartz represents major light mineral in Dunes sand. The prevailing wind direction area is NW-SE. ripple crest series every pattern are oriented perpendicular to NW-SE direction, wh...

High-mountain lake records in semiarid foreland settings, such as the central Andes of North-western Argentina, are highly restricted and often deprived well-preserved microstratigraphic information to analyze palaeoenvironmental changes their causes, particularly for periods prior Last Glacial Maximum. Laguna La Salada Grande (23°S/65°W, 4063 metres above sea-level) is a closed shallow located...

Glacial Lake Missoula formed when the Purcell Trench lobe of the Cordilleran ice sheet dammed Clark Fork River in Montana during the Fraser Glaciation (marine oxygen isotope stage 2). Over a period of several thousand years, the lake repeatedly filled and drained through its ice dam, and floodwaters coursed across the landscape in eastern Washington. In this paper, we describe the stratigraphy ...

Clay-mineralogy study of Taiwanese river-mouth sediments, recent deep-water seafloor sediments around Taiwan, along with collected from the Tainan shelf edge, have been investigated to access source and transport detrital fine-grained sediments. We determined clay mineralogy in both hemipelagites turbidites top 50 cm deep-sea sediment cores infer how are dispersed through river-fed turbidity cu...