At http://phys.org/print358144586.html .... the end of Permian extinction event resulted in the demise of 90 per cent of marine life. It is thought that ocean venting played a role, releasing hydrogen sulphide that wiped out the dominant form of life at the time and allowed a minority form to become the majority thereafter.
At http://news.yahoo.com/mighty-mammoths-fell-prey-rapidly-warming-earth-12... ... and http://phys.org/print356878329.html .... concerns a paper that blames the demise of the mammoths and other large beasties on 'climate change' - and human impact was negligible. This story has been around for a while and got the commenters at WattsUp in a huff. They objected to climate change playing a role and tended to 'big up' the role of human predation by hunters.
At http://phys.org/print357194318.html ... in the deserts of Utah, Nevada, and southern Oregon ancient shorelines can b e found on hillsides above dry valley floors, left behind like bathtub rings. These are the mark of former lakes that once existed in what is now a hot and dry region in the shadow of the mountains.This whole region was much wetter long after the end of the Ice Age, with springs and marshes and water in abundance (in comparison with today). When did the desert form - or dry out? Well, dampness still existed until 8200 years ago - isn't that surprising? Or is it.
At http://phys.org/print357231085.html ... new research by US geologist James Kennett (and an international team) have an article in PNAS (July 27th 2015). They have used Bayesian methodology, described as statistical analysis, of 354 C14 dates from 30 different sites around the world in order to narrow down the date of the Younger Dryas Boundary event. They coincide with a date at 12,800 years ago. This range overlaps with that of a platinum peak recorded in the Greenland ice sheet (ice cores).
Mount St Helens volcano went off in May of 1980 and it is reputed to have formed geological sedimentary layers in a matter of hours. There is a visitor centre on highway 504, the main road leading to the volcano from the west. It is run by Creationists - go to http://mshcreationcenter.org/7ws1/) but the story can be accessed at www.icr.org/article/8810 ...
At www.bbc.co.uk/news/world-australia-32701311 (19th May 2015) the Luritja people of central Australia once told stories of a fire devil coming down from the Sun, crashing into the Earth, and killing everything in the vicinity. The legend is describing a meteor tha struck Australia's central desert region 4700 years ago according to astrophysicist Duane Hamacher.
An article in Meteoritics and Planetary Science 50 (3) page 368-381 (2015) 'Chelyabinsk, Zond IV, and a possible first century fireball of historical importance' by William K Hartman of the Planetary Science Institute in Tucson, Arizona has caught the eye of George Howard and he has posted the full article on his web site at http://cosmictusk.com/saul-on-the-road-to-damascus-airburst/ ... click on the download button at the bottom of the pdf window and you can read the full article online or print out.
At www.eurekalert.org/pub_releases/2015-04/wsu-ctc042815.php ... this is a story on Tibet and it seems there was a major change at the end of the third millennium BC - at the period when the Akkadian Empire dramatically collapsed. We learn that climate change may have been responsible - and the cooling period between 2300 and 2000BC appears to be what they are finger pointing (but I may be wrong). Later, at some stage, farmers in Tibet began growing wheat and barley - and it is suggested this was as a result of the cool weather.
At http://phys.org/print348483517.html ... dinosaur footprints have turned up on an Australian beach - but they are only exposed during spring tides. This indicates the continental shelf around western Australia was dry land at the time.
One interesting aspect is the equipment used, a light-weight LiDAR laser scanner developed by CSIRO that apparently fires lasers into the atmosphere from a spinning mirror. Distance is measured when the laser bounce back.
George Dodwell's name keeps cropping up recently, on the Internet. He crops up every now and again at SIS. It's difficult to know how much reliance we can have regarding his curve - but he appears to have contradicted Newcomb's 'Formula for the Obliquity of the Ecliptic' big time.