Geology news

The Gorge under the Ice

At www.sciencenews.org/view/generic/id/352848/description/News_in_Brief_Big... ... J Bamber of Bristol University and chums have uncovered a large canyon while mapping Greenland's sub glacial terrain with ice penetrating radar. The Gorge is 800 metres deep and stretches from central Greenland to the island's NE coast. How does this affect ice cores?

Glaciers in the mountains of Iberia during the Ice Age

An interesting piece of research from Spain - see http://phys.org/print296738850.html ... the facts on the ground don't appear to fit the assumed picture. Mountain glaciers reached a maximum at 26,000 years ago (in Iberia) but the maximum spread of the northern ice sheet occurred at 20,000 years ago - a 6,000 year difference. Why is this?

So, what was happening - was the maximum extent of the ice sheet really at 20,000 years ago or has ice sheet extent been compromised and not all that evidence is due to ice. Might water better explain some of the erratics and gravels, etc.

A giant sink hole

A parish in Lousiana is being swallowed by a sink hole (sometimes known as swallow holes because they swallow objects). At http://blogs.smithsonianmag.com/smartnews/2013/08/watch-this-sink-hole-s... ... there is a video of the sink hole in action. It is 25 acres across and is still growing. It may have an origin in local mining or an unstable salt cavern (with some seismic activity added to the brew). The US Geological Survey people determined that the collapsing solt cavern was responsible for the earth tremors and not the other way around.

Sea floor vent described as a huge bulls eye

Bearing in mind some of the things blogged at Malaga Bay the following is interesting - see http://phys.org/print296117095.html (the same story is at Science News and Science Daily, and no doubt various other blogs). A huge ocean plume being emitted from a sea floor vent in the South Atlantic is emitting large quantities of iron and manganese, and other micronutrients. The plume from the vent is 1000km in length and is clearly anomalous - as no such vents had previously been found in that situation.

Canyons carved by Climate Change

This climate change malarkey has now migrated to the Pliocene period, and it is said to lie at the root of canyons formed on the Andes Plateau in Peru and Bolivia. Canyons are viewed by uniformitarian geologists as a proxy for uplift and tectonic processes. Here we have one of those interpretation problems caused, it would seem, by the geochronological framework rather than by fact, and the enormous amounts of time postulated as elapsing between one strata of rock and the one above it. An in-house anomaly you might say - like creative accountancy.

Rocks that aren't so old

At http://phys.org/print295079728.html and www.sciencedirect.com/science/article/pii/S0009254113002696 ... iron ore deposits in the Pilbara region of Australia are between 26 and 2 million years of age - much younger than most of the similar geological formations, and this is using uniformitarian methodologies based on decay rates. The iron ore was laid down in the Miocene - iron rich sediments accumulating at the bottom of ancient river channels (over tens of millions of years, they claim).

Ice Ages are not all they are cracked up to be

At http://phys.org/print295101717.html ... mainstream say that Ice Ages and warm interglacials have alternated regularly, almost like clockwork, for millions of years. Earth's climate, the theory alleges, cools roughly every 100,000 years - with vast areas of N America, Europe and Asia buried under very thick ice sheets. At the end of the Ice Age it gets warmer and ice melts - which lasts roughly 10,000 years - before descending into another cooling. In other words, for roughly one tenth of time that has elapsed in the Pleistocene the world is an agreeable place to live.

Loki's Castle

At http://phys.org/print294650860.html ... in 2008 Norwegian scientists discovered Loki's Castle, a field of five active hydrothermal vents on the Mid Atlantic Ridge between Norway and Greenland. IN association with Loki's Castle are rich metal deposits - and a unique biology. In the seas west of Norway there are volcanoes and active earthquake zones, assumed to be part of the process of Plate Tectonics. Hydrothermal vents churn out hot water - at up to 360 degrees Celsius. No wonder climate scientists, and the Met Office people, think global warming is hiding in the oceans.

Geological Oddities

At http://malagabay.wordpress.com/2013/07/21/geology-mind-the-gap/ ... is another amusing post from Tim Cullen with a sarcastic take on geology as it is presented by mainstream academia. In this instance the focus is on stratigraphy - but whether you fall for it or not it is still something to think about as many a true word is said in jest. Min the Gap is a reference to the fact the sedimentary record is incomplete - vastly so. There are gaps - even Charles Darwin told us about those gaps.

Man Made Earthquakes

One of the more recent scare stories circulated by environmentalists as an anti-fracking tactic, is the idea of humans causing earthquakes - a theme of a recent post. In this one the evidence comes from a geological source, at www.usgs.gov/blogs/features/usgs_top_story/man-made-earthquakes/