Topic: Archeology


Radiometric Dating 同位素年代测定

  • Radioactive Decay/ Nuclear Decay 衰变
  • Half-life 半衰期



Radiometric dating calculates an age in years for geologic materials by measuring the presence of a short-life radioactive element, e.g., carbon-14, or a long-life radioactive element plus its decay product, e.g., potassium-14/argon-40.



Relative Dating & Absolute Dating

C14 dating is Absolute dating.

Archaeologists have two main ways to tell the age of sites and artifacts. Relative dating tells how old something is in relation to other objects, but cannot provide a year or specific date of use. In contrast, absolute dating provides a specific calendar year for the occupation of a site.

Relative dating methods estimate whether an object is younger or older than other things found at the site. Relative dating does not offer specific dates, it simply allows to determine if one artifact, fossil, or stratigraphic layer is older than another.

Absolute dating methods provide more specific origin dates and time ranges, such as an age range in years. How specific these dates can be will depend on what method is used.


  • excavate 发掘
  • paleolithic 旧石器时代(hunting-gathering, nomadic life)
  • mesolithic 中石器时代
  • neolithic 新石器时代(settlement, livestock, agriculture)
  • lithosphere 岩石圈
  • chronological 年代的
  • remain 遗骸(剩下的东西)
  • Pottery 陶器
  • Ceramics 陶瓷的
  • antique 古老的
  • artifact 手工艺品