Geology news

The River Eem

The Herholz Centre for Environmental Research (see http://www.alphagalileo.org ) March 3rd ... the Eemian Interglacial between 126,000 and 115,000 years ago is named after the river Eem in the Netherlands. It was followed by a glacial period that came to an end 15,000 years ago, known as the Weichselian after the Polish river Weichsel. At it's peak some 21,000 years ago it's glaciers stretched as far south as Berlin (or nearly so). Researchers have studied lake sediments to reconstruct the climate history of the Eemian.

YD Boundary Event Updates

New Scientist 204-2734 November 14th 2009 page 10 ... Kate Revilous claimed a mud core from the bottom of Lough Monreagh in western Ireland shows that the Younger Dryas event was so quick that very cold conditions set in within less than a year - possibly within weeks.

Underwater Waves

www.physorg.com id186252841 February 25th ... Oceanography scientists from the University of Rhode Island have been looking at what it might be that generates huge underwater waves that occur between layers of warm and cold ocean water in coastal regions. These can reach heights of 150m in the South China Sea and the effects of them can actually be viewed from space (cameras in satellites). The existence of a huge continental shelf system off the coast f East Asia is one factor but a deep ocean basin is also located in the South China Sea.

Icy Equator

www.physorg.com id186161122 February 23rd ... some geologists think ice existed at the equator some 300 million years ago during the Palaeozoic (final stages) and research is ongoing to find out why this should be so.

Gulf of Mexico

www.physorg.com id 186089477 February 22nd ... the Little Ice Age apparently had an affect in the Caribbean and the Gulf of Mexico according to research by marine geologists - deep sea sediment samples. The region cooled by 2 degrees which is completely at odds with the 0.6 degrees from broad scale climate reconstructions - and completely gives a lie to the Mann hockey stick. 

Another Catastrophe

Science Daily February 17th ... a Nature Geoscience paper on the Carbon Cycle before humans has found that 100 million years ago there were large changes as a result of a massive amount of volcanic activity that introduced carbon dioxide and sulphur into the atmosphere. At the same time one third of marine life died out - which they suggest was due to a drop in oxygen levels in the oceans.

Lake Baikal

Daily Galaxy February 17th (www.dailygalaxy.com ) ... Lake Baikal is the oldest, the largest and the deepest lake on the planet. It's reckoned to be 25 million year of age and has a diversity of plant and animal species unknown elsewhere in the world - including the freshwater seal. Many of the unique fish in Baikal resemble deep sea species rather than freshwater ones. There are forests of sponges in the lake that resemble the Caribbean - but it is located in the sub Arctic.

Ice Shelving

www.physorg.com February 11th ... a study published in Geophysical Research Letters describes how ocean waves originating along the Pacific coasts of North and South America travel across the ocean to impact on Antarctica and it's ice shelves - those below water in the West Antarctic peninsular I assume. These waves lead to periodic collapse of the ice shelves as over time they contribute to the expansion and/or production of crevasse fields on those ice shelves.

The hole in the crust

Daily Galaxy December 27th 2009 ... in 2005 an Ethiopian volcano erupted and in the process a 35 mile rift in the landscape was created - in days (instant geology). The writer says, almost off-handedly, that nature appears to make changes much more rapidly than geology allows. However, the uniformitarian model seems to just bob up and down and take these observations on the chin without a flicker.

Pleistocene

www.physorg.com January 12th ... the Black Mesa basin in Arizona has underground aquifers created by seepage through the overlying geology. The water contains gases that provide a hint of ancient climate in the region - via palaeohydrological tools that capture noble gases such as neon and helium, elements that resist normal chemical reactions. Initial results show the aquifer was recharged during the last Ice Age and this implies the Jet Stream at that time was much further south than it is today.