Moldavites: Natural Or Fake?
Wednesday 30 August 2017
Moldavites: Natural Or Fake? 30AUG2017
Saturday 26 August 2017
Blueprint for a Global Fireball Observatory 26AUG2017
Blueprint for a Global Fireball Observatory
Saturday 19 August 2017
Citizen Scientists To Study Solar Eclipse 2017 19AUG2017
Citizen Scientists To Study Solar Eclipse 2017
Tuesday 15 August 2017
Periodicity in Impact Cratering ? Part 2 15AUG2017
Periodicity in Impact Cratering ? Part 2
Hi,
Yesterday, I posted the link to apaper that argued
against there being a periodicity in Phanerozoic
impact cratering.
On the other side of the argument, I found some
papers that argued for a periodicity in Phanerozoic
impact cratering. They include:
Rampino, M.R., and K. Caldeira, 2017: Correlation of the
largest craters, stratigraphic impact signatures, and
extinction events over the past 250 Myr. Geosci.
Frontiers, in press, doi:10.1016/j.gsf.2017.03.002.
https://pubs.giss.nasa.gov/abs/ra08800k.html
https://pubs.giss.nasa.gov/authors/mrampino.html
Rampino, M.R., and K. Caldeira, 2015: Periodic impact
cratering and extinction events over the last 260
million years. Mon. Not. Roy. Astron. Soc., 454, no. 4,
3480-3484, doi:10.1093/mnras/stv2088.
https://pubs.giss.nasa.gov/abs/ra04800g.html https://pubs.giss.nasa.gov/authors/mrampino.html
Prokoph, A., M.R. Rampino, and H. El Bilali, 2004: Periodic
components in the diversity of calcareous plankton and
geological events over the past 230 Myr. Palaeogeogr.
Palaeoclimatol. Palaeoecol., 207, 105-125,
doi:10.1016/j.palaeo.2004.02.004. (Has PDF file.)
https://pubs.giss.nasa.gov/abs/pr08200o.html
https://pubs.giss.nasa.gov/authors/mrampino.html
Yours,
Paul H.
Monday 14 August 2017
Is there a resolvable periodicity in impact cratering record ? 14AUG2017
Is there a resolvable periodicity in impact cratering record ?
Asteroid the size of a house set for near miss with Earth 14AUG2017
Asteroid the size of a house set for near miss with Earth
Wednesday 9 August 2017
More Younger Dryas Impact Hypothesis Papers 09AUG2017
More Younger Dryas Impact Hypothesis Papers
Monday 7 August 2017
Comic-Con, a Meteorite Petting Zoo, Etc, for 2 Minutes of Darkness 07AUG2017
Comic-Con, a Meteorite Petting Zoo, Etc, for 2 Minutes of Darkness
Giant Mud Balls Roamed the Early Solar System 07AUG2017
Giant Mud Balls Roamed the Early Solar System
Giant mud balls roamed the early solar system
Rethinking early asteroids’ rockiness could solv
some meteorite mysteries. By Lisa Grossman
Science News, August 4, 2017
https://www.sciencenews.org/article/giant-mud-balls-roamed-early-solar-system
Early solar system may have slung giant mud balls.
The first asteroids may not have been so rocky,
explaining some meteorite mysteries. By Lisa Grossman
Science News for Students, August 4, 2017
https://www.sciencenewsforstudents.org/article/early-solar-system-may-have-slung-giant-mud-balls
The paper is:
Bland, P.A., and B.J. Travis. 2017. Giant convecting
mud balls of the early solar system. Science Advances.
Published online July 14, 2017. doi: 10.1126/sciadv.1602514.
http://advances.sciencemag.org/content/3/7/e1602514
Also, there is:
The solar system's earliest asteroids may have all
been massive. A new analysis offers new clues to
how planetary building blocks form
By Maria Temming, August 3, 2017
The paper is:
Delbo, M., K. Walsh, B. Bolin, C. Avdellidou, and,
A. Morbidelli. 2017. Identification of a primordial
asteroid family constrains the original planetesimals
population. Science. Published online August 3, 2017.
doi: 10.1126/science.aam6036.
http://science.sciencemag.org/content/early/2017/08/02/science.aam6036
Yours,
Paul H.