VARVES: Dating Sedimentary Strata
VARVES: Dating Sedimentary Strata
Description:
Students count the number of varves (annual layers of sediment) in shale billets, taken from the Green River Formation in Wyoming. The count is then extended to reflect the entire 260 meters of sediments where the billets originated, a period of approximately 2 million years. This provides a tangible experience for a sense of a time, from both a human perspective (vast period) and a geological perspective (very short period).
Education Levels:
7, 8, 9, 10, 11, 12, Community College
Subject:
Earth Science, General Science, Geology, Natural History, Paleontology, Process Skills
Resource Type:
Lesson plan
Medium:
Text/HTML
Fee Status:
Free
Beneficiary:
Students
Online provider:
Evolution and the Nature of Science Institutes (ENSI)
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