Much of the mineral and oil wealth of the northern territories are reserved for emergency.
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The process of thick sediment layers to "accumulate" along the "boundaries of continental and oceanic plates" is called Subduction.
<u>Explanation:
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- During a marine transgression, sea level raises high compared to land level resulting in floods. These are triggered during climate changes, ice-age, isostatic movements.
- Subduction occurs at the tectonic plates where one plate is moves under another forcing to sink into Earth’s mantle due to the gravitational force.
- The plates are continental and oceanic in the zone of lithosphere. The rate of subduction is usually seven to 8 centimetres per year.
- Marine regressions are opposite to transgressions where sea levels fall compared to land levels.
- Glaciation is the interval of time within an ice-age. The current glacier period is of Holocene.
Answer:
D. Seafloor bedrock is younger near the ridge and older farther away.
Explanation:
In a divergence boundary oceanic plates or continental plates move apart. The plates moves apart causing an uprising of molten magma to form a new crust. The divergent movement of plate is very prevalent in the oceanic plates.
The plates in the oceanic crust moves apart due to the up welling of aesthenosphere materials . These aesthenosphere materials(molten magma) are introduce to the ocean floor through the mid oceanic ridge . As this materials are introduced through cracks and fissures, the plates continue to drift apart. The molten magma later solidified to form a new crust closer to the oceanic ridge. This is why sea floor bedrock closer to the ridge is younger as new rocks are formed here. But as one move farther away from the ridge the rocks become older. This phenomenon provide ample evidence that the seafloor is spreading. The older rocks found father away from the ridge proves the seafloor has been spreading given way for new rocks closer to the ridge.
#6- Plate Boundry.....................
Explanation:
This is not pole reversal. Pole reversal does not control how a rocks are formed, they only align the orientation of magnetic minerals in a cooling rock.
Pole reversals occur when the direction of the magnetic north and south changes.
- The rock type with the quartz band oriented perpendicularly from one another must have been formed along a fracture in the rock formation.
- Fractures structurally controls how intrusions are formed.
- The quartz band must have been a fluid from a magmatic body that crystallizes at the late stage with some other minerals.
- Fractures acts as weakness planes in rocks and they are utilized by intrusive bodies to cool.
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Sedimentary rocks brainly.com/question/9131992
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