Andes to Alps: Mahaney et al. field evidence confirms cosmic cause for Black Mat from 10,000 BC

Wrote the book

Recent Developments in the Analysis of the Black Mat Layer and Cosmic Impact at 12.8 ka Bibs and Bios: William C. Mahaney, Leslie Keiser, David H. Krinsley, Allen West!, Randy Dirszowsky, Chris C.R. Allen, Pedro Costa Article first published online: 6 DEC 2013 Geografiska Annaler: Series A, Physical Geography Abstract:

Recent […]

In desperate hole, Pinter grabs another shovel

Nicholas Pinter

In a recent interview with NBC News anti-YDB jihadi Nick Pinter claimed that “the pro-impact literature is, at this point, fringe science being promoted by a single journal.”

This is nonsense — and easily disproven. The critics of the YDB hypothesis have published 10 times in PNAS (see […]

Mahaney….Again!: New Evidence from a Black Mat Site in the Northern Andes Supporting a Cosmic Impact 12,800 Years Ago

Source: JOURNAL OF GEOLOGY Volume: 121 Issue: 4 Pages: 309-325 DOI: 10.1086/670652 Published: JUL 2013

Abstract: Previous work has ascribed a cosmic impact origin to black, high-temperature, carbon-encrusted beds (2–3 cm thick), associated with the Younger Dryas readvance of ice at 12.8 ka during the Late Glacial in the northern Andes of Venezuela. The […]

Mahaney 2013

The breakup in space of a comet or asteroid prior to impact could produce a surface or oceanic impact by the largest object, and hundreds of smaller fragments could create air-bursts affecting an entire hemisphere (Bunch et al. 2012). Approximately 90% of all ejecta from the main impact would fall within five crater radii, although […]

Kerr on Limb: Science writer misleads peeps in public post

Distinguished Science writer Dr. Richard Kerr walked the plank this afternoon in response to this morning’s Knight Science Journalism Tracker inquiry of science writers.

Charles Petit’s casual post brought quick attention from the old-school dean of science writing. Kerr implored his press colleagues to, in effect: Move on, move on…There is nothing […]

YDB impact researchers cite confirmations in recent PNAS paper

The PNAS paper has a helpful bibliography of recent publications supportive of the hypothesis. It’s worth a separate block quote below.

Nice how the links take you to the cites themselves at the PNAS website.

“Some independent workers have been unable to reproduce earlier YDB results for MSp, CSp, and NDs […]

Seek and Ye Shall Find: ET material confirmed in Murray Springs Black Mat


At the end of the Pleistocene a Younger Dryas black mat was deposited on top of the Pleistocene sediments in many parts of North America. A study of the magnetic fraction (~10,900±50 B.P.) from the basal section of the black mat at Murray Springs, AZ revealed the […]

Trust but Verify: Independent confirmations of the Younger Dryas Impact Boundary

Skeptics of the YDIB hypothesis frequently state that “no one can reproduce the YDIB results” (Kerr, 2010); “nobody has found anything” (Kerr, 2010); there is a “lack of reproducibility of data” (Holliday, 2011); and “unique peaks in concentrations at the YD onset have yet to be reproduced” Pinter (2011). These casual dismissals […]

Just Published: Independents locate suspected ET Black Mat and more in Venezuela

An international team of scientists representing a number of disciplines locate bizarre materials and ET impact markers in a distinct layer of well-dated sediments from the initiation of the Younger Dryas and publish their findings in a major scientific journal. 2007 Firestone in PNAS?

Nope. W.C. Mahaney et. al. Geomorphology — March 2010.

In […]