Dating ancient objects
Weather during the summer rainy season exposed the metal mask — along with a collection of human bones — in a tomb near the village of La Quebrada, in northwestern Argentina, the study authors wrote.
There were about 14 bodies in the burial area, with the bones all mixed together and the mask placed on top of one corner of the pile.
And our remarkable ancient jades and bronzes are among the greatest treasures of Chinese art outside China.
The Old Stone Age (Paleolithic Era) -from the beginning of human existence until around 12,000 years ago Why do we call this time in history the Stone Age?
Found at a site where adults and children were buried, the mask dates to approximately 1000 B.
C., the scientists wrote in a study describing the find.
A tool made up of more than one material is called a composite tool. Technologies are tools and also skills that make our lives easier.
To hunt for food, early humans formed spears, first by sharpening the ends of sticks, but later by attaching a sharp stone spear-tip to wood using animal sinew.Nearby, a second burial area held a single occupant.The bones of a child approximately 8 to 12 years old, also dating to about 3,000 years ago, were buried with a stone bead and with what appeared to be a copper pendant, perforated by a small hole near the top.The mask measures about 7 inches (18 centimeters) long and nearly 6 inches (15 cm) wide. To create the mask, someone would have hammered the metal flat while it was cold and then reheated it, according to the researchers.The age of these metal objects — particularly the mask, crafted to deliberately resemble a human face — strongly suggests that people in the Argentinian regions of the Andes were shaping copper into artifacts earlier than previously thought, the study authors noted.
There are three ways to determine the date of an artifact: Was the world different in the Old Stone Age from our modern world? Wild herds of animals roamed the land in search of food, which was scarce at that time.