Geology news

Greenland Melt

Remaining on the theme of unforeseen facts cropping up at a later date we have a story at www.dailymail.co.uk/sciencetech/article-9029805/ ... Japanese researchers have mapped a plume of molten rock, otherwise known as lava, risin beneath the Greenland ice cap. To do this they analysed the speed of seismic waves travelling beneath the earth. The molten rock caused geothermal activity in the North Atlantic. All over the North Atlantic it would seem. Not just in Greenland but on the island of Jan Mayen and Iceland. These two have active volcanoes with their own mantle plumes.

Peruvian Fossil Tree

In Down to Earth geological magazine of November 2020  we have a story about a fossil tree found on Peru's altiplano [the central Andean plateau]. The tree was buried in what is now a cold grassy plain, a high altitude site in southern Peru. The find is said to contradict current mainstream thinking about past climate in the region - between ten and five million years ago. See also www.dailymail.co.uk/sciencetech/article-8674567/ ... and the research was published in Science Advances.

Dust on the Sea Floor

Of interest to catastrophists one might assume. Ancient dust on the sea floor. However, once again the focus is on climate. rather than meteors or comets. Go to https://phys.org/news/2020-11-ancient-sea-floor-climate-history.html ... during the Late Glacial Maximum, around 20,000 years ago, and more, iron containing dust accumulated on the sea floor. Iron is said to fertilise marine phytoplankton. In this case in the South Pacific. It is an odd story if your read it through.

Sea level change 40,000 years ago

At https://phys.org.news/2020-10-years-sea-level-alor-island.html ... a cave on Alor Island in Indonesia, located between Flores and Timor, has been intermittently occupied over 40,000 years. Sea levels in that time experienced a series of highs and lows. Sometimes it was a cave on the sea shore and sometimes stranded miles inland as the sea shore retreated. People came and went, adapting to the different environments. At 40,000 years ago the sea was near the cave and the people fed themselves on shell fish and sea urchins etc.

Chicxulub

At https://wattsupwiththat.com/2020/05/26/dinosaur-dooming-asteroid-struck-... ... the asteroid that struck earth at the K/T boundary came in at an angle of 60 degrees according to a new study. This is said to have maximised the amount of climate changing gases that subsequently ascended into the upper atmosphere. It likely unleashed billions of tonnes of sulphur, blocking out the sun.

Stone Forests

At first I thought from the headline they were talking about petrified forests, but no. The stone forests (a sea of trees) are the pointy bits on mountains - in China and Madagascar for example. How they were created is the subject of another experiment, of a sort. They have puzzled geologists for some time. The research showed that flowing water carves ultra sharp spikes in land forms. Simulation is involved of course, so we may assume not every possibility was included in the experiment, such as the sort of landscape carving featured on Electric Universe videos.

Raining Sand

This is a good one. Sent in by Gary. We have two links, https://www.space.com/37654-exoplanet-55-cranci-e-facts.html ... www.planetary.org/articles/the-different-kinds-of-exoplanets-you-meet-in... ... and here we have the different kind of exoplanets that have been discovered - orbiting other stars. Some look like planets in our solar system. Some do not. The smaller planets are generally rocky and the larger ones, it is thought, are gassified. Some may even be watery. That is the great hope. In a few short years from nothing to 4000 exoplanets are now known.

Geology in Japan

At https://phys.org/news/2020-09-japan-geologic-history-discovery-metamorph... ... Japan's geological history is now in question after the discovery of metamorphic rock with microdiamonds in it. Researchers in Japan have discovered microdiamonds in metamorphic rock strata, an unusual phenomenon that is also known from the Italian Alps. They are said to form in collision  zones - one plate crashing into another. Although it is possible collisions of the cosmic kind might be inferred, but left unsaid.

Fire in Late Glacial Maximum

At https://notrickszone.com/2020/08/03/during-the-last-glacial-maximum-fire... ... during the Late Glaical Maximum, when ice sheets are thought to have been at their greatest extent (in the last 100,000 years), fire activity in the natural environment seems to have been an order of magnitude more prevalent than today. We are talking about the period, 26,000 to 19,000 years ago, after which the ice sheet seems to have shrunk.

Pechevalavato Mammoth

This two links were sent in by Robert. At https://abcnews.go.com/Technology/wireStory/preserved-mammoth-skeleton-f... ... where we are told that Russian scientists are in the process of retrieving a well preserved skeleton of a woolly mammoth. It still has ligaments attached to bone. It was found in silt and sediments of a lake in northern Siberia. Local reindeer hunters found pieces of bone and informed the authorities and scientists turned up to invesigate.