The major source of oceanic salinity is the dissolution of ions from rocks on land that are carried into the ocean by rivers. This process adds various salts to seawater, contributing to its overall salinity. Additionally, hydrothermal vents on the ocean floor can also introduce elements and minerals that affect salinity.
False
The major component of oceanic crust is basalt, which is a type of mafic rock that forms from solidified volcanic lava flows. Basalt is rich in iron and magnesium and is the most common rock type found in the oceanic crust.
A) Salinity - the salt concentration in ocean water - is a major property that influences its density and affects marine life. Ocean water contains various minerals, experiences pressure variations with depth, and supports diverse plankton communities, but salinity is a fundamental characteristic.
The salinity of a river can vary depending on factors such as the source of water, climate, and human activities. Typically, freshwater rivers have low salinity levels, ranging from 0.1 to 0.5 parts per thousand (ppt). If a river is influenced by seawater intrusion or human activities like mining or agriculture, its salinity can be higher.
The source material of basaltic magma is typically the upper mantle, which is composed of ultramafic rock rich in magnesium and iron. When mantle rocks partially melt due to high temperatures or reduced pressure, basaltic magma forms. This magma then rises to the Earth's surface through volcanic activity.
Continental Erosion
yes..somewhat. It states that the ratio of major salts in samples of seawater from various places is constant. It can give you a rough answer to salinity ,but salinity varies because of elements not included in the major salts of the ocean. If there were no other factors then it would be able to tell you the salinity.
False
The body of water with the lowest salinity is typically freshwater, such as rivers and lakes. Among larger bodies of water, the Baltic Sea is known for having low salinity levels due to its significant freshwater inflow from rivers and limited exchange with oceanic waters. In general, salinity levels decrease in areas where freshwater mixes with saltwater.
Sodium, Na
Oceanographers commonly measure salinity in practical salinity units (PSU), which is a dimensionless scale based on conductivity. Another unit sometimes used is parts per thousand (ppt), where salinity is expressed as grams of salt per kilogram of seawater. Both units effectively convey the concentration of salt in seawater, aiding in the study of oceanic properties and processes.
The major component of oceanic crust is basalt, which is a type of mafic rock that forms from solidified volcanic lava flows. Basalt is rich in iron and magnesium and is the most common rock type found in the oceanic crust.
A) Salinity - the salt concentration in ocean water - is a major property that influences its density and affects marine life. Ocean water contains various minerals, experiences pressure variations with depth, and supports diverse plankton communities, but salinity is a fundamental characteristic.
Along the mid oceanic ridges.
Oceans in hot, dry climates tend to have high salinity due to increased evaporation rates. When water evaporates, it leaves behind salts and other minerals, concentrating them in the remaining water. Additionally, limited freshwater input from rivers or rainfall further contributes to this salinity buildup. As a result, the combination of high evaporation and low freshwater influx leads to elevated salinity levels in these oceanic regions.
The salinity of a river can vary depending on factors such as the source of water, climate, and human activities. Typically, freshwater rivers have low salinity levels, ranging from 0.1 to 0.5 parts per thousand (ppt). If a river is influenced by seawater intrusion or human activities like mining or agriculture, its salinity can be higher.
the major source is sun