Research News from the Earth Sciences. Human evolution and revolution in Africa. A hindrance or a spur to humans? Ash-fall blanket at Mount Pinatubo volcano in the Philippines. The eruption that created the 100 by 30 km Toba caldera 74 ka ago was the largest recorded volcanic event during the two million years of the genus. In the Philippines, which reduced mean global temperature by 0. 5 C, Toba might be expected to have had an even larger cooling.

Thursday, March 12, 2015. The AAPG PROWESS Committee has a subcommittee, Pioneer AAPG Women. Dedicated to honoring pioneering women of the energy industry. They are planning a special publication and session at the 2017 AAPG Annual Convention and Exhibition. If you have information to share about a woman trailblazer in the industry or are interested to help build the program, their committee page. This will be a great program! While .

A blog to pool knowledge on, and interest in, our planet. Thank you for visiting my blog. There are links down the right hand side to other posts. If requested enough, I will add each minerals properties to the blog post too! All this is based on.

Tuesday, June 2, 2015. This post has already been written in my mind for months. It has been reworked and reworded many times and even though I had to emotionally prepare myself for the possibility of posting it much earlier than I ever wanted, the framework has essentially stayed the same. And it has always started with the joyful announcement of the arrival of our third son, Thomas Ray Koelliker. And as they were stitching me up Rob came back into the room wit.