Chapter 638 (1/2)

Shangzi really asked this question because of the shape of the tomb he saw. The tomb was more than ten meters deep underground, and the opening on it was the same size as the bottom of the tomb, that is, it was dug vertically.

”How do you conclude that this is an ancient tomb of the Shang and Zhou dynasties?” Shang Zizhen asked after nodding.

The curator explained: ”although no cultural relics have been unearthed, although the coffin has rotted, there are still some remains. Through the carbon 14 dating method, we can determine the age of the coffin, so as to determine that this ancient tomb is an ancient tomb of the Shang and Zhou dynasties.”

C 14 dating, also known as C 14 dating or radiocarbon dating, is a method to calculate the approximate age of the sample according to the degree of C 14 decay.

This principle is usually used to date fossils.

The C 14 dating method can only identify the cultural relics made of organic biological materials, but can not identify the inorganic materials at all.

When animals and plants are alive, due to metabolism, the carbon 14 in their body also remains constant. However, once they die, the carbon 14 in their body will decay continuously, with a half-life of 5730 years. In the sealed state, there is obvious difference with the outside world. This is the principle of carbon 14 dating.

Animals and plants belong to organic matter, and coffins are made of wood. Wood comes from ancient trees, and trees belong to plants. Therefore, carbon 14 dating method can be used to determine the age of this ancient tomb by dating and testing the residual coffin samples.

Of course, the skeleton can also be used for carbon 14 detection to determine the age of the tomb.

However, since there is a remnant sample of the coffin, the cultural relics department has preserved the integrity of the skeleton, and has not carried out carbon 14 test on the skeleton.

Because the identification result of the coffin is the same as that of the skeleton, the coffin made of trees must belong to the same age.

It's just because I learned that it was an ancient tomb in the Shang and Zhou dynasties that a group of cultural relics workers were surprised. Thousands of years later, this skeleton did not have any calcification. How complete is it!

”Curator, can I take this picture with me?” Shang Zizhen looked at the curator and asked.

Today's photos are all taken with digital cameras. They are stored in the computer, so they can be developed again. Even if shangzi takes away this photo, he just needs to develop another photo and archive it. It's not a hard work.

Naturally, the curator will not have any opinions. After all, shangzi really came here. It was Tianjing who called and asked him to fully cooperate with his work. Let alone just take a photo, even the whole file, the curator will not have any opinions.

Seeing that the curator agreed, Shang Zizhen put away the photo, said goodbye to the curator, and immediately rushed to Nanjiang. Although he said that he had determined that this ancient tomb was the tomb of a man in practice, he still didn't know what the situation was.

After returning to Qingyang temple, Shang Zizhen made a phone call to Zhou qiuchu, telling him that the owner of the ancient tomb had been determined to be a man of practice!

”Mr. Shang, when it's time, you don't have to hide from us any more. If you have anything, just tell us!” At the instigation of father Lin, Zhou qiuchu asked this question with hands-free on.

Shangzi sighed and said, ”it's not that I don't talk about it, but that it's a big deal. I'll wait until I get back to Tianjing to meet you. In addition, the practitioners in Nanjiang are going to Tianjing with me.”