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Evidence of sea-floor spreading?
Other than abundant matching fossils and sedimentary rock on opposite sides of the Atlantic Ocean and the apparent puzzle piece appearance of the continents on either side of the Atlantic, there is the presence of the mid-oceanic ridges, areas where new oceanic crust is created. The magnetic orientation of the basaltic oceanic crust as it forms is the mirror image of the magnetic orientation of the basaltic oceanic crust on the other side of the ridge, indicating that the seafloor is spreading in both directions away from ridge. Additionally, the dating of rock on the ocean floor has shown that oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached. And finally, accurate measurements have been made by global positioning devices which verify that seafloor spreading is occurring.
Where is evidence found for sea-floor spreading?
Other than abundant matching fossils and sedimentary rock on opposite sides of the Atlantic Ocean and the apparent puzzle piece appearance of the continents on either side of the Atlantic, there is the presence of the mid-oceanic ridges, areas where new oceanic crust is created. The magnetic orientation of the basaltic oceanic crust as it forms is the mirror image of the magnetic orientation of the basaltic oceanic crust on the other side of the ridge, indicating that the seafloor is spreading in both directions away from ridge. Additionally, the dating of rock on the ocean floor has shown that oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached.And finally, accurate measurements have been made by global positioning devices which verify that seafloor spreading is occurring.
What is shown in each element?
An atomic number is shown in each element.
How many regions are shown on the us map?
four regions are shown
What kind of chemical reaction is shown mg 2 h ci mgci2 h2?
A single replacement reaction is shown.
What process is shown occurring at C and what does it occur?
In a process taking tens of millions of years, part of the ocean floor sinks back into the mantle at deep ocean trenches.
What process is shown occurring at c and why does I occur?
Be the mountain is bad
Describe the energy changes occurring in the process shown above?
the water is different from one on the right
How are isotopes placed in the periodic table?
Isotopes and their prevalence are not shown on the periodic table. Instead, the atomic weight shown for each element is an average of the atomic weights of all naturally-occurring isotopes (calculated from percentages occurring on Earth).
Which ocean covers the most area shown on the Robinson projection map?
Pacific Ocean
Which ocean covers most of the area shown on the Robinson projection map?
Pacific ocean
Which oceans are shown in the northern hemisphere?
Arctic Ocean,Atlantic Ocean,and Pacific Ocean
The menstrual cycle's hormone levels are shown below. Which hormone is least active while ovulation is occurring?
Progesterone
How the process shown would terminate?
yes
What is shown by magnetic minerals spreading from a mid ocean ridge?
That magnetic minerals spreading from a mid-ocean ridge
What is shown by magnetic minerals spreading from mid ocean ridge?
That magnetic minerals spreading from a mid-ocean ridge
What is shown by magnetic minerals spreading from a mid-ocean ridge?
That magnetic minerals spreading from a mid-ocean ridge
