Lightning‐induced Shock Lamellae and Melting in Rocks 29SEP2017

 Lightning‐induced Shock Lamellae and Melting in Rocks

Chen, J., Elmi, C., Goldsby, D. and Gieré, R., 2017. Generation

of shock lamellae and melting in rocks by lightning‐induced

shock waves and electrical heating. Geophysical Research

Letters. First published: 9 September 2017

DOI: 10.1002/2017GL073843

http://onlinelibrary.wiley.com/doi/10.1002/2017GL073843/full

Melosh, H.J., Impact Geologists, Beware!. Commentary

Geophysical Research Letters. First published: 9 September

DOI: 10.1002/2017GL074840

http://onlinelibrary.wiley.com/doi/10.1002/2017GL074840/full

Yours,

Paul H.

Exploration of Large Peak-Ring Impact Craters - Chicxulub 29SEP2017

 Exploration of Large Peak-Ring Impact Craters - Chicxulub

Kring, David A., Philippe Claeys, Sean P.S. Gulick,

Joanna V. Morgan and Gareth S. Collins, 2017,

Chicxulub and the Exploration of Large Peak-Ring

Impact Craters through Scientific Drilling

GSA Today Volume 27, Number 10, pp. 4-8.

http://www.geosociety.org/gsatoday/science/G352A/article.htm

http://www.geosociety.org/gsatoday/science/G352A/GSATG352A.pdf

http://www.geosociety.org/gsatoday/archive/27/10/pdf/i1052-5173-27-10.pdf

Yours,

Paul H.

Ancient Meteorite Impact Produced Highest Natural Temperature Ever On Earth 27SEP2017

 Ancient Meteorite Impact Produced Highest Natural Temperature Ever On Earth

Ancient Meteorite Impact Produced Highest Natural

Temperature Ever On Earth, Extreme Tech, Sept. 18, 2017

https://www.extremetech.com/extreme/255984-ancient-meteorite-impact-produced-highest-natural-temperature-ever-earth

Meteorite Impact Caused the Highest Temperature

ever Recorded on Earth's Surface, Phys.Org Sept 18, 2017

https://phys.org/news/2017-09-meteorite-impact-highest-temperature-earth.html

The paper is:

Nicholas E. Timms, Timmons M. Erickson, Michael R. Zanetti,

Mark A. Pearce, Cyril Cayron, Aaron J. Cavosie, Steven M. Reddy,

Axel Wittmann, and Paul K. Carpenter, 2017, Cubic zirconia in

>2370 °C impact melt records Earth's hottest crust. Earth and

Planetary Science Letters Volume 477, Pages 52-58

http://www.sciencedirect.com/science/article/pii/S0012821X1730451X

https://infoscience.epfl.ch/record/230363

Yours,

Paul H.

Did Asteroid Impacts Start Plate Tectonics? 27SEP2017

 Did Asteroid Impacts Start Plate Tectonics?

Large meteorite impacts drove plate-tectonic processes

on the early Earth, PhysOrg, September 26, 2017

https://phys.org/news/2017-09-large-meteorite-impacts-drove-plate-tectonic.html

Did meteorites create the Earth’s tectonic plates?

Cosmos, September 26, 2017

https://cosmosmagazine.com/geoscience/did-meteorites-create-the-earth-s-tectonic-plates

The paper is:

O’Neill, C.,  Marchi, S., Zhang, S., and Bottke, W., 2017.

Impact-driven subduction on the Hadean Earth

Nature Geoscience (2017) doi:10.1038/ngeo3029

Received 12 December 2016 Accepted 22 August 2017

Published online 25 September 2017

http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo3029.html?foxtrotcallback=true

Another article is:

Australian rocks suggest early Earth may not have

had plate tectonics, Cosmos, September 28, 2017

https://cosmosmagazine.com/geoscience/tremors-shake-tectonic-plate-theory

Plate Tectonics May Have Begun a Billion Years

After Earth's Birth, Live Science, September 21, 2017

https://www.livescience.com/60478-plate-tectonics-gets-new-age.html

The paper is:

Johnson, T.E., Brown, M., Gardiner, N.J., Kirkland, C.L.

and Smithies, R.H., 2017. Earth’s first stable

continents did not form by subduction. Nature,

543(7644), pp.239-242.

https://www.nature.com/nature/journal/v543/n7644/abs/nature21383.html

Yours,

Paul H.

Scientists Find Fossilised Cosmic Dust in White Cliffs of Dover 11SEP2017

 Scientists Find Fossilised Cosmic Dust in White Cliffs of Dover

Scientists find fossilised cosmic dust in white cliffs of Dover
by Colin Smith, PhysOrg, September 7, 2017
http://www3.imperial.ac.uk/newsandeventspggrp/imperialcollege/newssummary/news_7-9-2017-10-59-59
https://phys.org/news/2017-09-scientists-fossilised-cosmic-white-cliffs.html

Martin D. Suttle and Matthew J. Genge, 2017, Diagenetically
altered fossil micrometeorites suggest cosmic dust is common
the geological record, Earth and Planetary Science Letters.
Volume 476, Pages 132-142 DOI: 10.1016/j.epsl.2017.07.0
http://www.sciencedirect.com/science/article/pii/S0012821X17304399
http://adsabs.harvard.edu/abs/2017E%26PSL.476..132S

Martin D. Suttle and Matthew J. Genge, 2017, The Diagenesis
and Replacement of Cosmic Dust in the Geological Record [#6010]
80th Annual Meeting of the Meteoritical Society 2017 (LPI
Contrib. No. 1987)
https://www.hou.usra.edu/meetings/metsoc2017/pdf/6010.pdf
https://www.hou.usra.edu/meetings/metsoc2017/pdf/sess104.pdf

Yours,

Paul H.

OT: World’s Most Accurate Hurricane Models 09SEP2017

 OT: World’s Most Accurate Hurricane Models

This is off topic but should be useful and of interest

given current events.

Here’s what the world’s most accurate weather model

predicts for Irma. A potentially catastrophic hurricane

will approach southern Florida this weekend.

Eric Berger, Ars Technica , September 6, 2017

https://arstechnica.com/science/2017/09/heres-what-the-worlds-most-accurate-weather-model-predicts-for-irma/

Please, please stop sharing spaghetti plots of hurricane

models All forecast models are not created equal.

Eric Berger, Ars Technica , September 6, 2017

https://arstechnica.com/science/2017/09/please-please-stop-sharing-spaghetti-plots-of-hurricane-models/

Yours,

Paul H.