Search results
Results from the WOW.Com Content Network
An evaporite (/ ɪ ˈ v æ p ə ˌ r aɪ t /) is a water-soluble sedimentary mineral deposit that results from concentration and crystallization by evaporation from an aqueous solution. [1] There are two types of evaporite deposits: marine, which can also be described as ocean deposits, and non-marine, which are found in standing bodies of ...
Marine sediment, or ocean sediment, or seafloor sediment, are deposits of insoluble particles that have accumulated on the seafloor.These particles either have their origins in soil and rocks and have been transported from the land to the sea, mainly by rivers but also by dust carried by wind and by the flow of glaciers into the sea, or they are biogenic deposits from marine organisms or from ...
The second sulfur sink is pyrite burial in shelf sediments or deep seafloor sediments (4 × 10 13 g/year; δ 34 S = -20‰). [94] The total marine sulfur output flux is 1.0 × 10 14 g/year which matches the input fluxes, implying the modern marine sulfur budget is at steady state. [93] The residence time of sulfur in modern global oceans is ...
Model of Estuary. The residence time of water is a key variable determining the health of an estuary, particularly from human-induced stresses.Rapid flushing ensures that there is insufficient time for sediment accumulation or dissolved oxygen depletion in the estuary; thus a well flushed estuary is intrinsically more robust than a poorly flushed estuary. [1]
High rates of evaporation result in salinities of 45–46 g l −1 along the open-marine coast of Abu Dhabi and up to 89 g l −1 in more-restricted lagoons. [7] The coast of Abu Dhabi is locally protected from open-marine conditions by a number of peninsulas and offshore shoals and islands associated with the east–west trending Great Pearl Bank.
Evaporation and precipitation processes exchange dissolved K between the hydrosphere and the atmosphere. [3] K is deposited in marine sediments and subducted to return to the lithosphere, where it can be mined for fertilizer or weathered to return to the soil. [4] Some flux and reservoir values could not be found.
The fluids derived their salinity from the evaporation of seawater and may have been mixed with meteoric water and pore water squeezed out of the sediments. [8] [7] Metals such as lead, copper and zinc are found in a trace amount in clastic and magmatic rocks. Saline waters may reach temperatures higher than 200°C in deeper parts of the basin.
In evaporation experiments, the evaporation of FeO at 1,823 K gave a fractionation factor of α = 1.01877. [2] ... Most modern marine sediments have ...