Answer:
c. are too old (predate sedimentary deposition)
Explanation:
Radiometric dates calculated from minerals in sedimentary rocks produce ages that are too old and often predates the sedimentary deposition.
Radiometric dating involves the uses of radioactive elements in rocks to measure the absolute age of rock.
It involves comparing the daughter to parent ratio because the decay started when the minerals formed in a rock in a period of crystallization or metamorphic event.
- Sedimentary rocks are often made up of re-worked minerals.
- They are derived from pre-existing igneous and metamorphic rocks.
- When radioactive minerals from these sources finds their way into sediments, they give the age of their parent rock and not that of the sedimentary rock because their activity is not being reset.
Catskill Mountains,<span>Allegheny Mountains are in the appalachians or part of them</span>
Answer:
There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted, which has not yet been lost; (2) frictional heating, caused by denser core material sinking to the center of the planet; and (3) heat from the decay of radioactive elements.
Explanation:
I need points
Answer:
a. What are the most considerable impacts you make
Explanation:
- Earth is the only planet that is capable of life in the solar system and it provides a sustainable environment for life forms and the non-living forms and has constant recycle of the materials in the ecosystem and involves the following components as water, nitrogen and carbon and sulfur and the phosphorus and the elements that impact the lifestyle of these cycles are the how we sue the resources and there impacts on the on earth ecological systems.
Answer:
pacific Ocean
Explanation:
The result: More volcanoes and earthquakes in places like California and Japan. For land-based volcanoes, Indonesia is the hotbed for fiery craters since it is part of the roughly 25,000 mile stretch circling the basin of the Pacific Ocean known 'ring of fire' where most active volcanoes lie
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