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The sound's source was roughly triangulated to , a remote point in the South Pacific Ocean west of the southern tip of South America The sound was detected by the Equatorial Pacific Ocean autonomous hydrophone array , [ 1 ] a system of hydrophones primarily used to monitor undersea seismicity, ice noise, and marine mammal population and migration.
The table below is arranged by the continent's percentage of the Earth's land area, and where Asian and Russian structures are grouped together per EID convention. The global distribution of known impact structures apparently shows a surprising asymmetry, [ 35 ] with the small but well-funded European continent having a large percentage of ...
Climate change due to change of ocean circulation patterns. Milankovitch cycles may have also contributed [11] Paleogene: Eocene–Oligocene extinction event: 33.9 Ma: Multiple causes including global cooling, polar glaciation, falling sea levels, and the Popigai impactor [12] Cretaceous: Cretaceous–Paleogene extinction event: 66 Ma
[335] [336] The YDIH has since been refuted comprehensively by a team of earth scientists and impact experts. [337] A 2022 study using Argon–Argon dating of shocked zircon crystals in impact melt rocks found outwash less than 10 km downstream of the glacier pushed the estimate back to around 57.99 ± 0.54 million years ago, during the late ...
Glaciation has been a rare event in Earth's history, [44] but there is evidence of widespread glaciation during the late Paleozoic Era (300 to 200 Ma) and the late Precambrian (i.e., the Neoproterozoic Era, 800 to 600 Ma). [45] Before the current ice age, which began 2 to 3 Ma, Earth's climate was typically mild and uniform for long periods of ...
The map of North America with the Western Interior Seaway during the Campanian. The Western Interior Seaway (also called the Cretaceous Seaway, the Niobraran Sea, the North American Inland Sea, or the Western Interior Sea) was a large inland sea that split the continent of North America into two landmasses for 34 million years.
The impact generated winds in excess of 1,000 kilometers per hour (620 mph) near the blast's center, [32] and produced a transient cavity 100 kilometers (62 mi) wide and 30 kilometers (19 mi) deep that later collapsed. This formed a crater mainly under the sea and currently covered by ~1,000 meters (3,300 ft) of sediment.
This is a very efficient ecosystem with many organisms recycling the organic matter sinking from the epipelagic zone [17] resulting in very little organic carbon making it to deeper ocean waters. The general types of life forms found are daytime-visiting herbivores , detritivores feeding on dead organisms and fecal pellets, and carnivores ...