In groups of 3-5 people, students will use soil "keys" to match a known date and soil context to soils on the poster. The keys provide archaeology dating soil date to apply to different features on the poster. Students will take this information and concepts learned from the discussion to complete the archaeooogy. Materials. Copies of the soil levels archaeology dating soil for each group.
Chapter 6 - How Old Is It? But how do archaeologists know which layers are old and which are new? There are several clues archaeologists can use. 1. Geology the study of the Earth teaches archaeologists that. a soil layers on top are usually younger than layers on the bottom; b certain soil types are found in certain environments only.
Kris Hirst is an archaeologist with 30 years of field experience. Updated May 23, 2019 Stratigraphy is a term used by archaeologists and geoarchaeologists to refer to the natural and cultural soil layers that make up an archaeological deposit. Geologists and archaeologists alike have noted that the earth is made up of layers of rock and soil that were created by natural occurrences—the deaths of animals and climatic events such as floods, glaciers , and volcanic eruptions—and by cultural ones such as midden trash deposits and building events. Archaeologists map the cultural and natural layers that they see in a site to better understand the processes that created the site and the changes that occurred over time.