How does plate tectonics affect sea level?
when rates of volcanism are low, rocks tend to cool faster and sea levels drop as subsidence occurs. conversely, when rates of volcanism are high, it takes longer for the rocks to cool, and sea level remains higher for longer periods of time after the rate of volcanism subsides.
What are the contributors to sea level rise?
The two major causes of global sea level rise are thermal expansion caused by warming of the ocean (since water expands as it warms) and increased melting of land-based ice, such as glaciers and ice sheets.
What are the 3 causes of sea level rise?
Most of the observed sea level rise (about 3 mm per year) is coming from the meltwater of land-based ice sheets and mountain glaciers, which adds to the ocean’s volume (about 2 mm per year combined), and from thermal expansion, or the ocean water’s expansion as it warms (roughly 1 mm per year).
Do plate tectonics cause ocean trenches?
Ocean trenches are a result of tectonic activity, which describes the movement of the Earth’s lithosphere. At many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench.
How do plate tectonics contribute?
The theory of plate tectonics revolutionized the earth sciences by explaining how the movement of geologic plates causes mountain building, volcanoes, and earthquakes.
What are the contributors to sea level rise quizlet?
Global sea surface temperature is increasing, melting the ice, causing sea levels to rise. through plate tectonics and glacier forbuldge, the land is moving up and down. the statistical probability of the flooding events that you expect to have over 500 years.
What are the major causes of sea level rise Mcq?
Explanation: Sea level rise is caused by the expansion of sea water. Sea water as it warms up due to sunlight it response to climate change and the widespread melting of land ice.
What is the main cause of the rise in sea level quizlet?
The two major causes of global sea-level rise are thermal expansion caused by the warming of the oceans (since water expands as it warms) and the loss of land-based ice (such as glaciers) due to increased melting. Sea ice is shrinking and thinning at an accelerating rate.
What are the major causes of sea-level rise Mcq?
How does ocean drilling and plate tectonics relate?
The Deep Sea Drilling Project (DSDP) was an ocean drilling project designed to analyze the ocean floor. This showed that new oceanic crust was being formed along the plate boundary and then spreading out laterally, providing evidence to support the theory of seafloor spreading and plate tectonics.
Does plate tectonics cause ocean basins?
Ocean Basin Types and Formation Active ocean basins undergo change mainly due to plate tectonics. These boundaries are common areas of tectonic activity, which is the deformation of the earth’s crust due to movement of tectonic plates resulting in activity (such as earthquakes, volcanoes and mountain building).
What are the factors affecting plate tectonics?
The forces that drive Plate Tectonics include: Convection in the Mantle (heat driven) Ridge push (gravitational force at the spreading ridges) Slab pull (gravitational force in subduction zones)