Sapropel is a term used in marine geology to describe dark-colored sediments that are rich in organic matter. Sapropels events occurs periodically (around each 21000yr) and are specific to the Mediterranean sea. Organic carbon concentration in sapropels commonly exceeds 2% in weight. Their occurrence has been found to be related of the Earth’s orbital parameter. […]
The oceans transport vast amounts of water, heat and salt across entire ocean basins and from low to high latitudes. As the ocean basins the gateways between them evolve over tectonic timescale, so does the circulation. These tectonic induced changes in ocean circulation plays an important role in some of the major climatic events. These
Sediment can be consist of either mineral or fossil particles, and both types can be found in many places on the bottom of the sea. Classification of marine sedimentation :- The sedimentation can be subdivided on the basis of the size of the particles or on the basis of their mode of formation. Factors that
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The oceanic mixed layer (OML) is the ocean region adjacent to the air-sea interface and is typically tens of meter deep and due to the fact that it is well mixed, the temperature and salinity are fairly uniform. The rapidly changing below these uniform regions of temperature , salinity and density are called thermocline, halocline
A dynamic topography map provides the information about horizontal circulation of the waters and magnitude of the flow at different depths. Ocean currents are mapped by studying the hills and valleys in maps of the sea surface height relative to the geoid, known as ‘Dynamic ocean topography’. Currents move around ocean dynamic topography hills &
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