Carbon dating mayan pyramids
Most of the construction hypotheses are based on the idea that huge stones were carved with copper chisels from stone quarries, and these blocks were then dragged and lifted into position.Disagreements chiefly concern the methods used to move and place the stones.Its lower section is built of sloping courses, while in its upper section the stones are laid horizontally.Archaeologists now believe that the Great Pyramid of Giza (at least) was built by tens of thousands of skilled workers who camped near the pyramids and worked for a salary or as a form of tax payment (levy) until the construction was completed, pointing to workers' cemeteries discovered in 1990 by archaeologists Zahi Hawass and Mark Lehner.For the Middle Kingdom Pyramid of Amenemhat II, there is evidence from the annal stone of the king that foreigners from Palestine were used.In the early pyramids, the layers of stone (called courses) forming the pyramid body were laid sloping inwards; however, this configuration was found to be less stable than simply stacking the stones horizontally on top of each other.
Granite, quarried near Aswan, was used to construct some architectural elements, including the portcullis (a type of gate) and the roofs and walls of the burial chamber.
Occasionally, granite was used in the outer casing as well, such as in the Pyramid of Menkaure.
During the earliest period, pyramids were constructed wholly of stone.
Locally quarried limestone was the material of choice for the main body of these pyramids, while a higher quality of limestone quarried at Tura (near modern Cairo) was used as the outer casing.
In addition to the many unresolved arguments about the construction techniques, there have been disagreements as to the kind of workforce used.
The Greeks, many years after the event, believed that the pyramids must have been built by slave labor.