Evidence of 2 billion years of volcanic activity on Mars

Evidence of 2 billion years of volcanic activity on Mars

Evidence of 2 billion years of volcanic activity on Mars
Meteorite found in Africa provides clues to evolution
of the red planet, University of Houston, February 2, 2017
http://www.uh.edu/news-events/stories/2017/February/02012017mars-volcano-meteorite.php
https://www.sciencedaily.com/releases/2017/02/170202090848.htm
https://phys.org/news/2017-02-evidence-billion-years-volcanic-mars.html

The paper is:

Lapen, T. J., M. Righter, R. Andreasen, A. J. Irving,
A. M. Satkoski, B. L. Beard, K. Nishiizumi, A. J. T. Jull,
and M. W. Caffee. Two billion years of magmatism
recorded from a single Mars meteorite ejection site.
Science Advances, 2017; 3 (2): e1600922 DOI: 10.1126/sciadv.1600922
http://advances.sciencemag.org/content/3/2/e1600922

Yours,

Paul H.

Volcanic Activity and Grand Canyon Filled With Fog

Volcanic Activity and Grand Canyon Filled With Fog

I found some spectacular pictures of the Grand
Canyon filled with fog on the Atlantic's In Focus
site (http://m.theatlantic.com/infocus)

The pictures are at:
http://m.theatlantic.com/infocus/2013/12/a-sea-of-clouds-fills-the-grand-canyon/100640/

Also, there is a gallery of very nice photos
of volcanic activity at:
http://m.theatlantic.com/infocus/2013/12/2013-the-year-in-volcanic-activity/100645/

Happy Holidays,
Paul
--

2012: The Year in Volcanic Activity

2012: The Year in Volcanic Activity

Some great pictures of volcanoes can be found in:
2012: The Year in Volcanic Activity, The Atlantic at
http://www.theatlantic.com/infocus/2012/12/2012-the-year-in-volcanic-activity/100423/

Happy Holidays,

Paul H.