Geology news

More on Surprising Mars

Gary Gilligan has replied to the first post, June 14th, and raised some interesting points about silica, and to the apparent violent history of Mars. The link provided, at http://finance.yahoo.com/news/scientists-find-something-mars-could-19010... ... actually implies that on earth tridymite forms at extremely high temperatures in an explosive paroxysm known as silicic volcanism (and Mount St Helens is cited as an example).

Another Seismic Query

At http://phys.org/print384769448.html ... seismic activity is problematic as it doesn't choose to conform to theory. For example, sensors have been installed at fault lines in California in order to monitor EQ activity - especially in the vicinity of the San Andreas fault (widely tipped to shake itself sometime in the near future but apparently stubbornly refusing to co-operate with the sensors). Most of the time fault lines are very quiet and do not pick up any kind of bleep out of the sensors. It is all quiet on the San Andreas fault.

Super Computer Geology

At http://phys.org/print384755263.html ... super computer modelling of Plate Tectonics and how it effects the crust and upper Mantle regions, has come up with some answers it is claimed. Old geological events may have actually come to life over and over again and are involved in earthquakes, any kind of seismic phenomena including mountain building, and various other earth processes not fully understood. You can do anything with a super computer it would seem, even iron out the anomalies in Plate Tectonics theory.

Big Holey

At http://www.ibtimes.co.uk/siberias-mystery-end-world-crater-formed-after-... .... we have a piece on that crater that mysteriously appeared in Siberia - triggered, it would seem, by an explosion of some kind. The sky is also said to have glowed. This story goes back to 2013, some months after the Chelyabinsk meteor (and another meteor was ruled out for various reasons.

More on K/T in Antarctic

At http://phys.org/print384080684.html ... we learn that during the Cretaceous period Antarctica was covered in rainforest and probably looked something like a virgin New Zealand environment, or some parts of modern South America. It goes on to say that Antarctica was still at the South Pole and there were not ice sheets at the poles as the Cretaceous was a very warm period - due to runaway global warming (according to mainstream geology). Obviously, this was not human induced global warming but the claim is that the climate of the earth was so warm the ice sheets had melted.

Antarctic and the whack

The K/T boundary event (asteroid or comet whack) had a definite impact on the Antarctic according to http://phys.org/print383473445.html. Research published in Nature Communications (May 2016) analysed 6000 marine fossils that lived between 69 and 65 million years ago (the end of the Cretaceous). These were examined by scientists from the University of Leeds and the British Antarctic Survey on Seymour Island in the West Antarctic peninsular. The collection included snails and clams as well as marine reptiles.

Vesuvius

Sediments in the Bay of Naples have been explored and have revealed how the eruption of Vesuvius affected water supply and sewage/drainage systems - see http://phys.org/print382693782.html

Interestingly, a similar setback was seen to have occurred in the 5th century AD as a result of natural disasters and invasions of Italy. This led to a decline in maintenance.

The painting of the eruption by Turner ...   ...

Petrified Forest

At www.dailymail.co.uk/sciencetech/article-3593219/North-sea-reveals-7-000-... ... we have another tract of ancient forest revealed off the eastern coast of Britain - once joined to the continent (in this instance woodland stretched from NE England to Denmark). It seems it dates back 7000 years ago when it was covered in sand (a major storm event perhaps). It has been revealed as the tides have apparently washed away the sand that had covered it for so long. Again, another storm event perhaps.

Antarctic fossils

Over a ton (in weight) of fossils has been gathered in Antarctica by a team of scientists. They include marine creatures, dinosaurs, and birds (see www.smithsonianmag.com/smart-news/fossil-hunters-uncover-17-million-year...

At http://phys.org/print382814609.html ... giant bird fossils from Antarctica have been recorded by the Argentines. The shape of their wings allowed them to glide and cruise over large distances, like a sort of prehistoric albatross.

Earth's surface periodically moves up and down

This is a hot potato in some ways as it has been found the Earth's mantle flows and causes the crust to periodically move up and down. This observation was fine and dandy in a uniformitarian or gradualist timescale but it seems it may occur much more often than previously allowed - and the big question is how often that might be. See http://archaeologynewsnetwork.blogspot.co.uk/2016/05/first-global-map-of...