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Geography

A baseline study of metals in cod (Gadus morhua) from the North Sea and coastal Norwegian waters, with focus on mercury, arsenic, cadmium and lead
submitted by geriishkoyyar 35 minutes ago - Topic: Geography
This study is one of several baseline studies that will provide basic and reliable information about the content of undesirable substances in important species of fish caught in Norwegian waters. Concentrations of metals in the muscle and livers of 516 cod caught at 22 positions in the North Sea ...



Long–term trends of upwelling and impacts on primary productivity in the Alaskan Beaufort Sea
submitted by tomobatt 57 minutes ago - Topic: Geography
Using a previously established wind proxy for upwelling along the North Slope of Alaska, we examine the interannual to decadal variability in upwelling as well as the climatological monthly trends. The ability of the upwelling to trigger phytoplankton blooms via upward nitrate flux from the haloc...

Continuous Measurement of Radionuclide Distribution Off Fukushima Using a Towed Sea-Bed Gamma Ray Spectrometer
submitted by tomobatt 57 minutes ago - Topic: Geography
Instrumentation and data processing methods to continuously map the distribution of radionuclides on the seafloor have been developed and applied to survey radioactive discharge from the Fukushima Dai-ichi Nuclear Power Plant following the M9.0 earthquake and tsunami that struck the east coast of...

Changes in extreme events of temperature and precipitation over Xinjiang, northwest China, during 1960–2009
submitted by labeco 1 hour ago - Topic: Geography
Based on daily surface air temperature (maximum, minimum and mean values) and precipitation records at 52 meteorological stations over Xinjiang, China, the spatial and temporal distributions of climate extremes are analyzed over the period 1960–2009. Twelve indices of extreme temperature and te...

Changes of surface soil relative moisture content in Hengduan Mountains, China, during 1992–2010
submitted by labeco 1 hour ago - Topic: Geography
The detection of soil moisture content is very valuable in the study of hydrological processes and environments. The purpose of this study was to characterize the spatial and temporal variations of soil moisture contents in 0–50 cm soil layer depths in the Hengduan Mountains, and to make infer...



Soil carbon isotope ratios of the Zijing site, Qinling Mountains, China: Implications for defining the southern limit of millet agriculture
submitted by labeco 1 hour ago - Topic: Geography
The inner Qinling Mountain basin is an ideal geographic area for examining the adaptation of the Yellow River Civilization into the transition zone of subtropical and warm temperate climates. Paleosol isotope and other geochemical and geophysical analyses were used to examine ancient farming and ...

Sorex fossils (Soricidae, Insectivora) from the Middle Pleistocene cave site of Shanyangzhai, Hebei Province, China
submitted by labeco 1 hour ago - Topic: Geography
This paper reports the Sorex fossils found in the Middle Pleistocene Shanyangzhai cave sediments in Qinhuangdao city of North China. The red shrew fossils include Sorex araneus, Sorex minutus, Sorex minutissimus and Sorex cf. mirabilis. S. minutus is reported for the first time in Middle Pleisto...

Multielement geochemistry of offshore sediments in the southeastern Yellow Sea and implications for sediment origin and dispersal
submitted by labeco 1 hour ago - Topic: Geography
In total, 116 surface sediments were collected from an offshore area of the southeastern Yellow Sea including a large mud belt (southeastern Yellow Sea mud: SEYSM) and analyzed for grain size and geochemical composition (organic carbon and 42 elements). Principal component analysis revealed that ...

Surface and deep water variations in the northeast Indian Ocean during 34–6 ka BP: Evidence from carbon and oxygen isotopes of fossil foraminifera
submitted by labeco 1 hour ago - Topic: Geography
Δ13C and δ18O records from planktic (Globigerinoides ruber) and benthic foraminifera (Cibicides spp.) were obtained from a deep sea sediment core (SK157–18) collected in the central Bay of Bengal. The chronology of this gravity core (11°59′N; 90°01′E; water-depth 3069 m; core-length 23...

Rock magnetic and geomagnetic field intensity studies on Megalithic archaeological pottery samples from Tamilnadu, India
submitted by labeco 1 hour ago - Topic: Geography
Archeointensity (AI) data from India are necessary in order to constraint the global models of the Earth's magnetic field. Unfortunately, no attempts have been made in India for archeointensity determinations using reliable modern scientific methods. In the present study, the rock magnetic and ar...

Mineral composition and structure of the stalagmite laminae from Chulerasim cave, Indian Himalaya, and the significance for palaeoclimatic reconstruction
submitted by labeco 1 hour ago - Topic: Geography
Many noteworthy properties of climate recorded by stalagmites can result from their mineralogy and fabric as well as their mode of occurrence. In this study, X-ray diffraction (XRD) and Scanning electron microscope (SEM) investigations were carried out for a well laminated stalagmite from Chulera...

Glacial dammed lakes in the Tsangpo River during late Pleistocene, southeastern Tibet
submitted by labeco 1 hour ago - Topic: Geography
Lacustrine and alluvial terraces and sediments record the extent of at least three stages of late Pleistocene glacially dammed lakes, along the Tsangpo River at the Dazhuka-Yueju gorge, the Zangga-Gyaca gorge and the Grand Bend gorge, in southeastern Tibet. Analysis of lacustrine samples in the T...

Carbon export mediated by mesopelagic fishes in the northeast Pacific Ocean
submitted by snihlb 1 hour ago - Topic: Geography
The role of fishes in the global carbon cycle is poorly known and often neglected. We show that the biomass of mesopelagic fishes off the continental USA west to longitude 141°W is positively related to annual net primary productivity, and averages 17 g m-2. We estimate the export of carbon out ...

Quantifying Non-indigenous Species in Accumulated Ballast Slurry Residuals (Swish) Arriving at Vancouver, British Columbia
submitted by snihlb 1 hour ago - Topic: Geography
Ballast tank “swish” samples were collected from ships following their arrival at Vancouver (British Columbia, Canada) after undergoing either a trans-oceanic or a Pacific-coastal voyage. The ballast swish consisted of a residual slurry mixture of sediment and water that remained trapped in b...

Substrate limitation of sediment methane flux, methane oxidation and use of stable isotopes for assessing methanogenesis pathways in a small arctic lake
submitted by mecralrimideis 2 hours ago - Topic: Geography
Among predicted impacts of climate change in the Arctic are greater thaw depth and shifts in vegetation patterns and hydrology that are likely to increase organic carbon and nutrient loading to lakes. We measured substrate limitation of sediment methane (CH4) flux, examined pathways of methanogen...






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