Sample Geology Paper on Which mineral has been the most useful for human civilization, and why

Minerals

  1. Which mineral has been the most useful for human civilization, and why?

Copper has been the most useful mineral for the human civilization, it is among the first minerals to have significance uses on earth. The main reason why copper is the most useful mineral in human civilization is the fact that it has contributed significantly to the improvement of many societies around the world at the onset of civilization. In its first use, various communities around the world used copper to make trade coins and beauty ornaments. One of its most significant contributions is the fact that it helped society to migrate from the Stone Age era. Copper was easy to use as it could be stretched and molded into desired shapes, it could conduct heat in a more efficient way compared to other minerals and this made it a suitable option for earlier civilizations. In the present world, this mineral is still regarded as a significant material in industries and different areas of life. Copper has effective alloying properties, meaning it can be combined with other minerals to produce more effective components.

  • Choose either a radiometric dating technique or an index (guide) fossil. Be sure to describe the elements used in the dating technique, the ages of rock for which it is useful and what rocks or minerals are involved. For the index fossil, describe the type of organism and the time period in which it lived

Uranium-lead dating

The Uranium lead dating is the oldest radiometric dating technique that is in use today. Geologists contend that if done carefully, it is one of the most reliable methods. One of the most interesting facts, with these techniques is the fact that it contains a natural cross check in it, which is used to show when nature has tampered with the evidence.

This dating technique utilizes four different types of isotopes namely; uranium-235, uranium-238, lead-207 and lead-206. In the dating process, it is vital to find two ratios between uranium 235 plus lead-207 and uranium-238 plus lead-206. The half life of these four isotopes is determined using the radiometric dater for finding the age range that the rocks are supposed to be in. The resulting data are then compared by using a Concordia diagram.