When classified by sediment lithology, predominantly siliceous sediments unsurprisingly have higher mean diffusive fluxes than predominantly calcareous or clay-rich sedi- ment. Combined with the areal extent of these lithologies, the `best-guess' global sedimentary bSi recycling flux is 69 9 1012 mol...
Microbiomes and biogeographic patterns. Links between microbiome and biogeography have been previously focused on several organisms, including marine sediment organisms46, humans47, pigs48, gastropods20, among others. The microbiome of marine species and marine sediments have revealed ...
Investigate the nutrients distribution in the Bohai Sea in the context the combined effects of land-based nutrients input/reduction, climate change, water and sediment regulation of the Yellow River. Analyze coupling effect of coastal chemical elements and ecological environment in the view of the bot...
Why is freshwater biology important? How does weathering increase ocean salinity? How does sediment from rivers increase ocean salinity? Why is the marine biome important? How does salinity in estuaries promote biological productivity? Why are sea urchins important to coral reefs?
In parts of the global ocean where the supply of Fe, either from the bottom (e.g., sediment and hydrothermalism) or the top (i.e., atmospheric deposition), is low, Fe becomes a micronutrient that limits the marine productivity. These oceans are often termed as the high-nutrient low-...
Sand Dredging Machine is the powerful equipment to excavate underwater sand, slurry or gravel to different locations. It is classified as submersible dredger, mini dredge for sale, small dredging equipment, small pond dredging equipment, sand suction dredger, suction dredging equipment, cutter suction...
Why do sediment deposits tend to form layers? Why is volcanic soil very fertile? How does groundwater cause erosion and deposition? Why can water pass easily through sandstone but not through shale? Why is the Great Sandy Desert so dry?
The very finest sediment is kept in a state of movement until it drops into the gulleys or furrows of the shelf, where it can come to rest together with the finer fragments of the remains of littoral or bank vegetation. Thus are formed the " mud-holes " of the Hudson Furrow so ...
Microbiomes and biogeographic patterns. Links between microbiome and biogeography have been previously focused on several organisms, including marine sediment organisms46, humans47, pigs48, gastropods20, among others. The microbiome of marine species and marine sediments have revealed ...
They are among the flattest portions of the earth's crust and appear to be formed by the deposition of fine sediment carried by turbidity currents that have covered and smoothed out irregularities in the ocean floor. One of the most significant features of the ocean basins is the midocean ...