The word geology is formed from the Greek words (ge = earth) and (logos = study) and was first used by the the Italian naturalist Ulisse Aldrovandi in 1603. Geology is the study of the solid Earth, the rocks and soils of which it is composed and the processes by which it evolves. Geology gives insight into the history of the Earth, as it provides primary evidence for plate tectonics, the evolutionary history of life, and past climates.
From the Greek (ge = earth) – (morfe = form) – (logos = study). Geomorphology is the scientific study of landforms and the processes that shape them. Volcanoes, glaciers, tectonic uplift or subsidence and the force of gravity are all factors that can alter the surface of the Earth. Other processes that cause landscapes to change can be water, wind, ice, fire, things living on the Earths surface and climate.
Sedimentary layers are deposited in a time sequence, with the oldest on the bottom and the youngest on top. In the 17th century Danish scientist Nicolas Steno formulated the principle of superposition. He had observed two major rock types in the Apennine Mountains near Florence, Italy, the lower layers had no fossils, while the upper ones were rich in fossils. He suggested that the upper layers had formed in the Biblical flood, after the creation of life, while the lower ones had formed before life had existed. This was the first use of geology to try to distinguish different time periods in the Earth’s history. Steno’s landmark theory that the fossil record was a chronology of different living creatures in different eras was a sine qua non for Darwin’s theory of natural selection.
One last thought. Do you experience that feeling of pleasure walking barefoot in the grass? Or think about how people just love to go barefoot at the beach and sink their toes into the sand? These are primal memories from our far distant past. To go barefoot and feel the subtle vibration of this living planet coursing up your legs and lifting your spirit is about connectedness. It’s your planet, stay connected.