Including Original "Paul H. Letters" Copyright © 1996-2017 Paul V. Heinrich - All rights reserved.



Sunday, 15 June 2014

Where have all the craters gone?

Where have all the craters gone?

Where have all the craters gone? Geological Society
of America, ScienceDaily, May 27, 2014
http://www.sciencedaily.com/releases/2014/05/140527154715.htm

The paper is:
Johnson, B. C., and T. J. Bowling, 2014, Where have
all the craters gone? Earth's bombardment history and
the expected terrestrial cratering record. Geology.
First published online May 22, 2014, doi: 10.1130/G35754.1
http://geology.gsapubs.org/content/early/2014/05/21/G35754.1

An older and related article is:
Tiny 'spherules' reveal details about Earth's asteroid
impacts, Purdue University, April 25, 2012
http://www.purdue.edu/newsroom/research/2012/120425MeloshImpacts.html
http://www.sciencedaily.com/releases/2012/04/120425140316.htm

The paper is:
Johnson, B. C., and H. J. Melosh, 2012, Impact
spherules as a record of an ancient heavy bombardment
of Earth. Nature. vol. 485, no. 7396, pp. 75–77.
http://www.nature.com/nature/journal/v485/n7396/full/nature10982.html

Yours,

Paul H.

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MikeG wrote:

>(Keep posting the links though - every
>now and then, one of the papers is free)

The abstract for the PDF of the Lunar and Planetary
Science Conference version of Johnson and Bowling
(2014) is at http://www.hou.usra.edu/meetings/lpsc2014/pdf/2414.pdf

Th PDF file of Johnson and Melosh (2012) is at
http://211.144.68.84:9998/91keshi/Public/File/34/485-7396/pdf/nature10982.pdf

Yours,

Paul H.