Hyde Park Mastodon Research: Pond Stratigraphy

Stratigraphy is a geologic term defined as the science of rock strata. Basically, it means looking at how sediments are deposited, and interpreting the conditions under which these deposited sediments. Sediments subjected to sufficient compression and heat often solidify into sedimentary rocks; in the case of Lozier Pond at Hyde Park, New York, however, these sediments have not been exposed to conditions that would transform them into rock. Older sediments are found under younger sediments, and so by looking at the changes in the sediments from older to younger in the bottom of the pond, many questions about the changes that took place to the pond over time can be answered, such as "Did the water depth change over time?" or "When did the lake change into a swamp, and why?"