We need history, and not just for the sake of it. We need it so we can learn and not repeat the mistakes. Those who don’t learn from past experiences are prone to repeat them. And even if we don’t have a say in the extinction of the dinosaurs, their wake can teach us to avoid the same turnout possibly.
Since the late 50s scientific ocean drilling got from 183 meters to 3250 meters and brought to surface evidence of the theory of plate, it revealed the Arctic’s former subtropical climate, it discovered flammable ice, and also found microbial life deep beneath the seafloor.
Sediments hidden in the depths of the oceans can tell a lot of secrets about the dinosaur era, about the workings of the oceans, and the Earth’s environment and climate. The scientists prefer to collect them from underneath the ocean because the ocean’s floor is thinner than the land’s, so the sample comes from a closer point to earth’s mantle.
Learning Earth’s early history by drilling through the floor on the New Zealand ocean
Now, JOIDES Resolution is floating above the Campbell Plateau south of New Zealand. Resolution is an ex-oil drilling ship, but for decades it is the community’s primary vessel for deep-ocean drilling. With it, the team brings to surface samples of the core, 9.5 meters long. They are split and stored in a refrigerator for use in further research.
The drill revealed evidence of the global heating event that occurred approximately 55.5 million years ago. The era is called the Paleocene-Eocene Thermal Maximum. It can help to understand how life responds to significant global warming or cooling, and mass extinction.
The team comes home with evidence about the Cenozoic Era. It was dated 66 million years ago, and it followed the “reset button” of the dinosaurs’ mass extinction. Also, about the Eocene-Oligocene Boundary, when the Antarctic became permanently covered in ice sheets.