Geology news

Andes Uplift

At http://phys.org/print369561139.html ... an interesting study of a massive volcanic field in the Andes that reveals a surprising amount of uplift in a short time scale, as much as 6 feet in the last 8 years. Apparently, this has occurred many times over the last 10,000 years of the Holocene.

Skye dinosaur footprints

The Times, December 2nd 2015, has a report on the discovery of dinosaur footprints on the island of Skye, which is situated off the west coast of Scotland and is renowned for its scenery (and its excessive rainfall). In the Jurassic the boundaries between land and ocean were somewhat different to what they are today.

lots of teeth

One for the grandchildren. Lots of teeth. Crocodiles and Dinosaurs (go to http://archaeologynewsnetwork.blogspot.co.uk/2015/12/fossil-hunters-unea...).

flood events

Flooding events are surprisingly common. There are surprising amounts of water in northern Britain at the moment (heavy and persistent rain swelling rivers)and as an example the link says the 2004 Indian Ocean tsunami killed more people in just 2 hours than the ongoing conflict in Syria has managed in 4 years. That is something to think about. Flooding events, in the present and in the past, have been severe and caused trauma and great loss of life. Take the drowning of the southern North Sea basin.

rivers in the Sahara

Gary sent in this link. At www.nature.com/ncomms/2015/151110/ncomms9751/full/ncomms9751.html ... and for double the effect see www.dailymail.co.uk/sciencetech/article-3312097/Lost-sands-time-Hidden-a... ... we learn that not so long ago, in the grand scheme of geological history, in the Late Quaternary, the Sahara had a network of freshwater lakes, rivers and streams, clearly fed by water falling out of the sky.

crack in the hills

this crack in the ground suddenly appeared in the foothills of the Bighorn Mountains in Wyoming. How did it come about? Nobody is saying for sure but a spokesman commented, it just goes to show how quickly some geological events can occur.

dinosaurs Utah

Palaeontologists have discovered a cliff side in Utah full of dinosaur fossils from the Triassic. Preliminary findings were presented at a conference in Dallas in October (2015) - see http://phys.org/print364231424.html

loess (2)

At the recent study group meeting in Willesden we discussed Ellsworth Huntington's research in central Asia and his book, 'The Pulse of Asia' - from the early 20th century. He claimed that wet and arid periods can be seen in the rise and fall of the levels of the Caspian and Aral seas, going back to the Greek era in the first millennium BC (where various authors with known dates and lives wrote contradictory accounts of the lake levels.

loess

Scientists have been looking at sediments formed by the Yellow River in China and it seems the river eroded and incised the Tibetan plateau over millions of years and in the process created the wind blown dust that is thought to form the Chinese loess formations - see http://phys.org/print363580304.html