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For those interested in the geology of Scotland. This sub seeks to connect all the geology societies of Scotland. Shaped during three billion years of our planet’s history by the movements of the Earth’s tectonic plates, mountain building, volcanism, ice ages, sea-level change and the processes of erosion and deposition.
3 days ago · Geologic time, the extensive interval of time occupied by the geologic history of Earth. Formal geologic time begins with the Archean Eon (4.0 billion to 2.5 billion years ago) and continues to the present day. Modern geologic time scales also include the Hadean Eon (4.6 billion to 4.0 billion years ago).
- The Editors of Encyclopaedia Britannica
People also ask
Is K/Pg extinction a re-evaluation of the heat/fire hypothesis?
Why were K Pg a small mammalian species?
Why is the K-Pg boundary record of dinoflagellates not well understood?
Which molluscan species became extinct at the K-Pg boundary?
2 days ago · The geologic time scale or geological time scale ( GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to determine the age of rocks).
4 days ago · From a geological perspective, Adam’s Inlet in Alaska has undergone major changes in the blink of an eye. Just 130 years ago, the inlet was covered by ice hundreds of meters thick. Today, it is ice-free. The inlet, which drains into the East Arm of Glacier Bay, lies within Glacier Bay National Park. “Since the end of the Little Ice Age ...
1 day ago · Rose De France Amethyst. Rose de France provided by Oceancrystaljewels. Rose de France amethyst is known for its light and dreamy color. It has a soft purple base that can look like lilac or light lavender, and sometimes you can see hints of pink in it, which makes it really different from other amethysts. This type of amethyst is pretty rare ...
3 days ago · Faults are one type of feature that provides evidence for past tectonic forces. A fault is a natural break in the rock where one block has moved relative to the other. Imagine that each block in the diagrams below are rocks with each color and pattern representing a different rock formation such as limestone or sandstone.
2 days ago · The Cretaceous–Paleogene ( K–Pg) extinction event, [a] also known as the Cretaceous–Tertiary (K–T) extinction, [b] was a sudden mass extinction of three-quarters of the plant and animal species on Earth, [2] [3] approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.
