3 cm × 1,000,000 years ÷ 100,000 cm in a kilometre = 30 kilometres
The rate of widening at divergent boundaries in the Atlantic Ocean is approximately 2.5 centimeters per year. This is caused by the seafloor spreading along mid-ocean ridges where tectonic plates move apart. Over time, this process leads to the formation of new oceanic crust.
The Atlantic Ocean widens at a rate of about 1 inch (2.5 cm) per year due to seafloor spreading along the Mid-Atlantic Ridge. This process involves the movement of tectonic plates, creating new oceanic crust and causing the ocean to gradually widen over time.
The Pacific seafloor formed at a faster spreading rate than the Atlantic seafloor.
Scientific studies have shown that the width of the Atlantic Ocean is expanding. Researchers have stated that this has to do with the effects of global warming and explains why the Pacific Ocean is decreasing in size. ++== YES - the Atlantic Ocean is widening, at a mean rate of 25mm/yr. The Pacific Ocean is closing. + NO _ Research has NOT shown it has anything to do with climate change! It has nothing whatsoever to do with climate. + The changes are due to Continental Drift,. = The Atlantic floor is widening from the Mid-Atlantic Ridge constructive-plate margin with only limited subduction to absorb the growth in oceanic plate. The Pacific is closing by subduction around most of its coasts, more rapidly than its own spreading-ridges can compensate. + The Continental Drifts associated with these are of the American continent swinging North-Westwards, and the European Plates moving NE.
5 billion gallons per sec.
The typical rate of seafloor spreading in the Atlantic Ocean is around 2.5 centimeters per year. This rate can vary along different sections of the Mid-Atlantic Ridge, with some areas spreading faster than others due to tectonic activity.
New crust is forming at the Mid-Atlantic Ridge, causing the Atlantic ocean to grow wider at a rate of about 3 centimeters per year.
3 centimeters equal 1.18110 inches. To convert inches into kilometers you multiply that by 28560. So, 1.18110 times 28560 equals 33,732.216 years
They are all boundaries between or fractures within the Tectonic Plates forming the Earth's crust. A convergent boundary is that between two approaching plates; usually an ocean-floor plate being subducted beneath the continental plate as the ocean closes. This is happening now to the Pacific Ocean. A divergent boundary is the opposite: the fracture of plate into two parts moving away from each other. The break is closed by upwelling magma. E.g. The Mid-Atlantic Ridge - the Atlantic is presently widening away from this subsea mountain-range at a mean rate of about 25mm/yr. Transform boundaries, or Transform Faults, are shear fractures across the plate at roughly right-angles to the spreading-ridge from which the emanate. They represent the effect of unequal spreading forces. If you look at a relief map of the Atlantic Ocean bed you will see many transform faults to E and W of the Mid-Atlantic Ridge
The Pacific region spreads 80-120 mm/yr, while the north Atlantic Ocean is just ~ 25 mm/yr.
Atlantic sediments are generally thicker than Pacific sediments due to the higher rate of sedimentation in the Atlantic Ocean, which is influenced by factors such as proximity to land, river input, and ocean circulation patterns. The Atlantic Ocean receives higher inputs of terrigenous sediments from rivers and wind, leading to faster accumulation rates compared to the Pacific Ocean, where sedimentation is lower due to the presence of extensive abyssal plains.