Geology news

Sixth Extinction

At www.media.uzh.ch/en/Press-Releases/2017/marine-Megafauna.html ... University of Zurich researchers have homed in on an extinction event around 2 million years ago when a third of large marine animals, or megafauna as they describe them, such as sharks, whales, sea birds and sea turtles appear to have gone missing. Why did they disappear? It could have had an impact on the ocean ecosystem they conclude, drawing a parallel with the role of humans in the modern world. However, the event 2 million years ago was clearly catastrophic, as they go on to show (using models as well as data).

Expansion

Laurence Dixon sent in details of a Royal Society paper by GG Nyambuya of the Dept of Physcis at Bulawayo University. He begins by saying 100+ years ago Alfred Wegener claimed Eareth's continental plates receded from each other over the course of Earth's history - the theory of continental drift. He also said they were stilll in a state of motion relative to one another. In order to explain this Wegener came up with the possibility the earth must be expanding. In reality, he had no adequate explanation as to why the plates were moving apart or the energy source responsible.

Sahara Sand

Gary Gilligan sent in this link to www.godkingscenario.com/blog/sand-sahara-come   ... which concerns his book, 'Extraterrestrial Sands'. The link provides a series of images of sand in the deserts of the world. He points out that from a landscape of lakes and savannah grassland, in the first half of the Holocene period, the Sahara degenerated into a dry and very arid swathe or band that stretched right across North Africa into the Arabian peninsular and even as far as the Thar Desert in India. Where did all that sand come from?

Water inside the earth

At https://phys.org/news/2017-06-mid-mantle-earth-oceans.html ... Japanese and German researchers have found evidence that suggests the middle of the Mantle may hold as much water as the oceans on the surface. That is a lot of water. The experiment and research was published at Science Advances (an open access site) and involves the minerals wadsleyite and ringwoodite, thought to exist in quantity in the middle Mantle zone, and experiments how these minerals can absorb water.

microplates

At http://phys.org/print414856601.html ... we learn that several 'hundred' miles off the Pacific NW coast a small plate, the Juan de Fuca, is slowly sliding under the North American continent - even though it has several hundred miles to go. It depends of course where the continental plate boundary is situated but as mainstream geology is certain that the mountains along the Pacific coast of North America are caused by plate subduction the author of the piece has no choice but to assume that is happening with Juan de Fuca.

A gnat with a big implication

At https://phys.org/print414218228.html ... a new species of fungus gnat found in a piece of amber from India closely resembles its relatives in Europe (found in Baltic amber). This is said to disprove the concept of a strongly isolated Indian subcontinent - one of the tenets of Plate Tectonics. India is supposed to have been an island that bumped into Asia - a quite hard bump in fact as it is supposed to have produced the uplift of the Himalayas.

Project

At https://phys.org/print414139220.html ... we learn of a project involving Nottingham University intends to map and model the sea floor in regions known to have been flooded and submerged following the end of the Ice Age. This will focus on three regions in particular - the North Sea basin in Europe, Sunda Land in SE Asia, and Beringia in NE Asia (once joined by a land mass to Alaska). No mention is made of the possibility of combining this with a look area now above sea level that may have been submerged in the last Ice Age.

Electret Discharge Tectonics

At www.thunderbolts.info/forum/phpBB3/viewtopic.php?f=4&t=16534 ... there is a post by Robertus Maximus, described as an alternative to Plate Tectonics and Earth Expansion models. He came up with the title, 'Electret Discharge Tectonics' which he hopes will bring geology up to date with the discovery of plasma in the solar system and the way the solar wind inter-acts with the Earth's magnetosphere, which also involves how the innards of the Earth is also affected by electro-magnetic forces.

Eksbach Lignite Pit

This is a peculiar post as the author lives in Australia and is speculating about a lignite open cast mine in Germany. Has he all the facts at his fingertips? Go to https://malagabay.wordpress.com/2017/05/13/roman-mystery-in-elsbach-lign... ... which is a guest post by the Australian geologist, Louis Hissink. He has his own web site and is an ardent enthusiast of the Electric Universe theory. See https://lhcrazyworld.wordpress.com ... and https://www.henrythornton.com/louis-hissink

Zealandia Two

More on Zealandia at www.geosociety.org/gsatoday/archive/27/3/article/GSATG321A.1.htm ... which seems to be the full paper (forwarded by Jovan). It is 6 pages long (8 pages with notes and references). Zealandia was formerly part of Gondwana Land - along with Australia and Antarctica. At some point it split apart. Some 94 per cent of Zealandia is now submerged but the process began in the Late Cretaceous - at the same time the Atlantic Ocean began to expand. It has since undergone substantial deformation.