Teaching relative dating
Teaching relative dating - Jasmine chat free
Geologists establish the age of rocks in two ways: numerical dating and relative dating.
The topic covered was stratigraphy and relative dating, so we covered many key geological concepts including the principle of unifominitarianism, cross-cutting relationships, original horrzontality, and the principle of superposition.
These artifacts suggest a people who hunt and gather for a living; who own few material possessions, suggesting mobility; and who have mastered the use of fire and tool making.
Level II (middle): pictures of sherds (broken pieces) of decorated pottery; a mortar and pestle for grinding grain; scattered beads and carved figures; post holes (shown as a regularly patterned darkened areas of soil) for a dwelling; scattered bones of wild game. Ancient Washington: American Indian Cultures of the Potomac Valley.
This concept called the (the date after which) is of particular importance to archaeologists dealing with the historic period. Exercises: Ask the students to exchange their items with others in the class to guess their use.
Your local archeologist may be able to furnish suitable materials, or the sequences in the publications listed below may be used for illustration. Then ask the students to arrange them in sets according to distinctive characteristics. Who made it, a specialized craftsman or an ordinary member of the society?
But absolute dating methods are not always useful; the particular circumstances to which they apply do not exist at every site.
Dating methods, such as radiocarbon dating, dendro-chronology or tree-ring dating, and potassium-argon dating, that may furnish an date for an archaeological site, are a contribution of the physical and the natural sciences.
Despite problems of interpretation, stratigraphy is a powerful archaeological tool in unlocking the mysteries of past lifeways.
Exercises: Level I (earliest): pictures of fire blackened rocks in a rough circle suggesting a hearth; scattered stone tools; and scattered animal bones and fruit pits.
Suppose the inhabitants of a previous site dug a large hole.
The top of the heap of excavated dirt would date the oldest.
These artifacts suggest people who are settled, at least part of the time. Washington, DC: George Washington University, 1977. (local study containing cultural sequence of eastern U.