Antarctica Archives - The Cosmic Tusk

March 21, 2018

Did the Black-Mat Impact/Airburst Reach the Antarctic? Evidence from New Mountain Near the Taylor Glacier in the Dry Valley Mountains Journal of Geology, March 15, 2018 Detailed microscopic investigations of horizons in a surface paleosol, part of a pedostratigraphic stack of tills at New Mountain, Antarctica, dated to the middle Miocene climatic optimum event (ca. 15 Ma), suggest not only that…

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Random Tusks

March 10, 2010

Antarctic Tunguska Blasts: Link trove from Heinrich

Paul Heinrich over at the Hall of Maat provides some fine links on the big cold bangs(s): Direct Links to “Tunguska type blast detected in Antartica” Papers and Articles Below are the direct links to the Antarctica Tunguska articles and papers: Articles are: Clues to Antarctica space blast by Paul Rincon BBC News, [news.bbc.co.uk] Antarctica May Have Been Battered by Huge…

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Random Tusks

March 8, 2010

Predictive paper: Nesvorny, Bottke, Vokrouhlicky used astronomy to predict Antarctic stratigraphy

David Nesvorny I might be pushing the publishing envelope here, but this Science paper was available at several locations on the web for free with no sign-in. For the time being it is now on Scribd: Therefore, a wave of micrometer sized Datura particles may have reached Earthonly a few thousand years after the formation of the Datura cluster. Signs of this event may be found by analyzing tracers…

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Random Tusks

March 7, 2010

The paper: Antarctic Blast evidence

Numerical simulations show that stony meteorites with masses in the 10*8 to 10*11 kg range may undergo total disruption during atmospheric entry in the lower layers of the Earth’s atmosphere, in a similar manner to the Tunguska event that occurred over Siberia in 1908 [12]. Modelling also show that at a later stage of a Tunguska-like impact a plume of hot vapour and ablation debris is…

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Random Tusks

March 7, 2010

Bang: Ancient Antarctic Blast detected by University of Siena scientists

Big news from the recent Lunar and Planetary Conference at the Woodlands in Texas. A excited article from the BBC breaks the cool story. A large space rock may have exploded over Antarctica thousands of years ago, showering a large area with debris, according to new research. The evidence comes from accumulations of tiny meteoritic particles and a layer of extraterrestrial dust found in…

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Antarctica

Antarctic Tunguska Blasts: Link trove from Heinrich

Predictive paper: Nesvorny, Bottke, Vokrouhlicky used astronomy to predict Antarctic stratigraphy

The paper: Antarctic Blast evidence

Bang: Ancient Antarctic Blast detected by University of Siena scientists

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BANG: New York Times publishes comprehensive and fair Sunday feature article on the Younger Dryas Event and the Comet Research Group

Bendall, et al. 2015