Formation of the Isthmus of Panama Redated

Formation of the Isthmus of Panama Redated

LSU professor helps redate the formation of the
Isthmus of Panama, Daily Revielle, June 17, 2015
http://www.lsureveille.com/daily/lsu-professor-helps-redate-the-formation-of-the-isthmus-of/article_8dabf40e-1554-11e5-bc22-873859081bd1.html

Geological Game Changer: New study shakes up
understanding of when continents connected.
Lousiana State University, Baton rouge, June 2015
http://www.lsu.edu/ur/ocur/lsunews/MediaCenter/News/2015/06/item76541.html

The paper is:

Bacon, C. D. , D. Silvestro, C. Jaramillo, B. T.
Smith, P. Chakrabarty, and A. Antonellib, 2015,
Biological evidence supports an early and
complex emergence of the Isthmus of Panama.
Proceedings of the National Academy of Science
of the United States. vol. 112 no. 19, pp. 6110–6115.
doi: 10.1073/pnas.1423853112
http://www.pnas.org/content/112/19/6110.short

yours,

Paul H.

Lunar Rocks Are First Direct Evidence of Collision That Formed Moon

Lunar Rocks Are First Direct Evidence of Collision That Formed Moon

Lunar Rocks Are First Direct Evidence of Collision
That Formed Moon, National eographic, June 6, 2014.
http://news.nationalgeographic.com/news/2014/06/140605-earth-moon-theia-evidence-space-science/

Body that formed the Moon came from a different
neighborhood. (The body that smacked into Earth
has a distinctive elemental signature.) Ars Technica
http://arstechnica.com/science/2014/06/body-that-formed-the-moon-came-from-a-different-neighborhood/

Herwartz, D., A. Pack, B. Friedrichs, and A. Bischoff,
2014, Identification of the giant impactor Theia in lunar
rocks. Science. vol. 344, no. 6188, pp. 1146-1150
DOI: 10.1126/science.1251117
http://www.sciencemag.org/content/344/6188/1146

Also, there is:
Four-billion-year-old rocks yield clues about Earth's
earliest crust. ScienceDaily, University of Alberta
http://www.sciencedaily.com/releases/2014/05/140529112057.htm
News360 at http://news360.com/article/241073278 ; and

Ancient rocks yield clues about Earth's earliest crust
by Bryan Alary, University of Alberta, May 28, 2014
http://news.ualberta.ca/newsarticles/2014/may/ancient-rocks-yield-clues-about-earths-earliest-crust

Reimink, J. R., T. Chacko, R. A. Stern, L. M. Heaman,
2014, Earth’s earliest evolved crust generated in an
Iceland-like setting. Nature Geoscience. Published
online May 25, 2014 10.1038/ngeo2170
http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo2170.html

Yours,

Paul H.