The two important processes involved in lithification of sedimentary rocks are compaction and cementation.
Fresh sediment is usually loose material filled with open spaces or pores filled with air or water. Lithification serves to reduce this pore space and replace it with solid mineral material. The main processes involved in lithification are compaction and cementation.
Compaction compresses the sediment to a smaller volume by packing the sediment particles more tightly, removing water from the pore spaces, or by reducing the pressure at the sediment particle contact points. Cementation involves filling the pore spaces with solid minerals that are either deposited from solution or allow particles of existing sediment to grow into the pores.
Know more about lithification here
brainly.com/question/2596608
#SPJ4
Answer:
There is a gradual decline of volcanic age form the continental to the oceanic. As some of the volcanoes get eroded away.
Explanation:
- The hotspot volcanoes are transported by plate movements as they move away form the mantel plumes the hotspot volcanism decreases. Then eventually the hotspots become extinct.
- Thus on the basis of age the youngest are near the places active tectonism where the magma is directly ground underneath the ground surface.
Answer:
A. Reforestation makes the forest renewable, so the company has a stable supply of timber.
Explanation:
If a company uses timber in order to produce paper, it can go either way for the environment, but also for the business itself.
If the company is not reforesting, than it will constantly cut down new trees, with much higher rate than what they can reforest the cut down area, so eventually there will be no trees, so the environment will be destroyed, and the business will be left without its basic material.
If the company uses the method of reforestation though it is a different story. If for every tree that is cut, there is another one that is planted on its place, the forest will constantly be in good shape. Also, the timber in this manner will be a renewable resource, as its replenishing will be at roughly the same rate as the cutting down of the trees. The environment will stay in good condition, and the business will constantly have its basic material in order to operate.
Answer:
The correct options are: a. the number of additional neutrons of an isotope is too large; d. the number of additional neutrons of an isotope is too small
Explanation:
The chemical elements that have the same number of protons in the nucleus but different number of neutrons are known as isotopes. Isotopes can be stable or unstable.
The isotope having an unstable nucleus, due to the presence of additional neutrons in the nucleus of the atom, is known as a radioisotope.
Also, chemical elements that have atomic number greater than 83 have unstable nuclei and thus they are called radioisotopes.
