The last continental ice sheet advance and retreat in New York State coincided with dinosaur extinction, showing the intricate relationship between geological events. Scientists can determine rock ages through radiometric dating techniques, aiding in understanding the formation of Pangea. The Triassic-Jurassic extinction highlights the complex factors influencing marine life during that period.
The geologic event that occurred in New York State at approximately the same time as the extinction of dinosaurs and ammonoids was the advance and retreat of the last continental ice sheet. This event contributed to the shaping of the landscape in the region, including the formation of Long Island, where the ice sheet extended to and later retreated from, leaving behind unconsolidated sediments deposited by glacial processes.
One way scientists could have determined the ages of the rocks and connected them to the breakup of Pangea, based on the fossil footprints found in sedimentary rocks near Newark and Hartford Basins, could be through radiometric dating techniques. By analyzing the isotopic composition of certain minerals in the rocks, scientists can establish the age of these formations and correlate them with the geological timeline.
The extinction of dinosaurs and other marine species at the end of the Triassic and beginning of the Jurassic periods has been linked to various factors such as volcanic activity and climate change, indicating a complex interplay of events that influenced life on Earth during that time. The diverse geological processes occurring simultaneously provide insights into the dynamic nature of Earth's history and the interconnectedness of different events impacting ecosystems.
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