OCEAN BASIN

Ocean Basin Formation

The Ocean Basins are formed from a series of processes beginning with a separation of two diverging plates where molten rock materials well up from the underlying mantle into the ridge or gap between the diverging plates,solidifying into an oceanic crust.In time, a new ocean floor is created.

 About 70% of the planet's surface is made up of ocean basins, which are the regions that are below sea level. These areas hold the majority of the planet's water. In fact, it will help you to recall this term if you remember that a 'basin' is a large bowl, much like your kitchen sink. So, an ocean basin can be thought of as a large bowl that holds ocean water. The floors of our world's oceans contain features that you might recognize as being similar to some structures on land.

 Harry Hammond Hess and Robert Sinclair Dietz Concluded from this evolution of ocean basins that the Atlantic and Arctic basins are expanding, as exhibited by the spreading of the Mid-Atlantic Ridge.At the same time, they also speculated that the Pacific basin is shrinking,  as exhibited by the southern movement of the East Pacific Rise (Northwestern Boundaryof the Pacific Plate). In effect, the ocean basins are ceaselessly "recycled"






  In this study of Ocean Basin i learned how our oceans are formed.From The Process of two Diverging plates createing gaps where hot molten rock, called magma and When the magma seeps through the gaps, it solidifies as it cools, creating a new layer of ocean crust.

The Primordial Soup Theory

 

The origin of life is a scientific problem which is not yet solved until these days. A lot of theories were presented to know where life really began. In general terms, it is suggested that all life today started by common descent from a single primitive life form. One of the most known theories of the origin of life is the Primordial Soup Theory.

The idea came came from Russian scientist Alexander Oparin and English geneticist John Haldane. Oparin and Haldane thought that with the mix of gases in the atmosphere and the energy from lightning strikes, amino acids could spontaneously form in the oceans.

The Primordial Soup Theory suggest that 3 billion years ago, life began in a ocean as a result of the combination of chemicals from the atmosphere and from the space and resulted into the formation of amino acids, the building blocks of proteins, which would then evolve into the first species on Earth., the bacteria, named Cyanobacteria.