Mid Ocean Ridges
1) Who is NOAA?
The National Oceanic Atmospheric Administration.
2) What is the mid-ocean ridge system? What happens there?
It is a 65,000 km long floor where new land is created.
3) How long wide the is mid-ocean ridge system? Where is it located?
It is 65,000 km long and 1,500 km wide, and is located beneath the sea, and on the sea floor.
4) What type of plate boundary forms a mid-ocean ridge system? Explain.
The divergent plate boundary because it is where the Earth gets torn apart and magma flows upwards.
5) Explain how ridges form?
It all starts when tectonic activity pulls and stretches until cracks are formed. Then magma flows upwards, heading toward the crust, and slowly making it bend.
6) What forms most of the ocean crust?
Basaltic dikes formed from cooled magma forms the ocean's crust.
7) How does hot lava respond to cold sea water?
(Pillow Basalt) Magma cools when touching cool water, and turns into Basaltic dikes, or small types of rocks.
8) What is happening at the Juan de Fuca Ridge?
In Juan de Fuca, volcanism occurs beneath the ocean and makes an average width of 6 m new land per year.
9) What does the rate of spreading dictate?
Every year in Juan de Fuca, new lands grow 6 m average.
10) How hot can sea water be heated to at the mid-oceanic ridges?
It can go up to 400 degrees Celsius.
11) Explain how Hydrothermal Vents are formed?
Dissolved water circulates through the crust, and flow upwards, creating hydrothermal vents.
12) Why is the hot mineral water so important? What do they support?
Hot material produces solar energy that flies upwards. Bacteria and other living sources living uses those materials to produce their own energy.
13) What is chemosynthesis? How does it differ from photosynthesis?
Chemosynthesis is the usage of chemical energy from materials. Photosynthesis uses sunlight to gain energy, and chemosynthesis uses chemical energy.
The National Oceanic Atmospheric Administration.
2) What is the mid-ocean ridge system? What happens there?
It is a 65,000 km long floor where new land is created.
3) How long wide the is mid-ocean ridge system? Where is it located?
It is 65,000 km long and 1,500 km wide, and is located beneath the sea, and on the sea floor.
4) What type of plate boundary forms a mid-ocean ridge system? Explain.
The divergent plate boundary because it is where the Earth gets torn apart and magma flows upwards.
5) Explain how ridges form?
It all starts when tectonic activity pulls and stretches until cracks are formed. Then magma flows upwards, heading toward the crust, and slowly making it bend.
6) What forms most of the ocean crust?
Basaltic dikes formed from cooled magma forms the ocean's crust.
7) How does hot lava respond to cold sea water?
(Pillow Basalt) Magma cools when touching cool water, and turns into Basaltic dikes, or small types of rocks.
8) What is happening at the Juan de Fuca Ridge?
In Juan de Fuca, volcanism occurs beneath the ocean and makes an average width of 6 m new land per year.
9) What does the rate of spreading dictate?
Every year in Juan de Fuca, new lands grow 6 m average.
10) How hot can sea water be heated to at the mid-oceanic ridges?
It can go up to 400 degrees Celsius.
11) Explain how Hydrothermal Vents are formed?
Dissolved water circulates through the crust, and flow upwards, creating hydrothermal vents.
12) Why is the hot mineral water so important? What do they support?
Hot material produces solar energy that flies upwards. Bacteria and other living sources living uses those materials to produce their own energy.
13) What is chemosynthesis? How does it differ from photosynthesis?
Chemosynthesis is the usage of chemical energy from materials. Photosynthesis uses sunlight to gain energy, and chemosynthesis uses chemical energy.