Geology Field Trip Journal Essay

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Geology field trip Journal On Tuesday, October 25, 2016, our Geology class visited the Hammonds Rocks, in South Mountain, Cumberland County, Pennsylvania. The main goal of the trip was to observe real life examples of geological concepts and principles, that we have studied over the course of this semester. Throughout the trip, my classmates and I were able to see different geological features that resulted from geological processes such as erosion, transportation, and deposition. Along the way to the site, our professor tried to show and explain to us some of the real life examples of the differential erosion process along the Susquehanna river, and near the site at South Mountain park, where we were able to see, through a broad view of the Cumberland valley, the features resulting from differential erosion along the valley. …show more content…

This exercise gave me an opportunity to put into practice geologic concepts, such as sorting, rock texture and environmental indicators like joints in determining the geologic history of a rock. With the help of our professor, my classmates and I were able to determine that the rock, which was a congramerate sedimentary rock composed of sandstones gravels and milky quartz minerals. The outcrop was composed of beddings consisting of layering of fine followed by coarse particles. This observation indicated that the rock might have resulted from deposition of sediments by a river with seasonal variation in the volume of water, particularly, a braided river. Also, by observing the orientation of some of the rock particles on the outcrop and sorting of the rock sediments, we were able to determine the evidences for flooding and variation in the force that transported the particles as they were deposited to for the

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