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A more recent theory combining both Deccan volcanism and the impact hypothesis has been developed by teams at UC Berkeley led by Paul Renne and Mark Richards. This theory proposes that the impact itself instigated the most intense period of Deccan eruptions, both of which had devastating effects contributing to the K-Pg extinction.
In 2021, evidence for a probable impact 3.46 billion-years ago at Pilbara Craton has been found in the form of a 150 kilometres (93 mi) crater created by the impact of a 10 kilometres (6.2 mi) asteroid (named "The Apex Asteroid") into the sea at a depth of 2.5 kilometres (1.6 mi) (near the site of Marble Bar, Western Australia). [52]
[12] [13] The impact hypothesis, also known as the Alvarez hypothesis, was bolstered by the discovery of the 180 km (112 mi) Chicxulub crater in the Gulf of Mexico's Yucatán Peninsula in the early 1990s, [14] which provided conclusive evidence that the K–Pg boundary clay represented debris from an asteroid impact. [8]
Researchers at University New South Wales (UNSW) believe they’ve found evidence that an asteroid impact buried near the town of Deniliquin, Australia, is the world’s largest ever discovered ...
Off the baking Interstate 40 in Arizona, the evidence is clear: From time to time, sizable asteroids do pummel Earth. There, you'll find the 600-foot-deep "Meteor Crater," which landed 50,000 ...
More than a century ago, something exploded in the sky above Siberia, breaking windows and creating a shining ball of light – but was it a meteor impact? Strange new theory of what caused ...
The main evidence for the Alvarez hypothesis that the Chicxulub impact resulted in the Cretaceous–Paleogene extinction event, supported by earth sciences consensus, [9] comes from the presence around the world of shocked quartz granules, glass spherules and tektites embedded in a layer of clay with extremely high levels of iridium, all signs ...
A significant amount of the physical evidence used by Kristan-Tollmann and Tollmann, [1] as supporting their hypothesis, is either too old or too young to have been created by this hypothesized impact. In many cases, it is hundreds to thousands, and in one case hundreds of thousands, of years too old to be credible evidence of a Holocene impact.