Geology

Geology News -- ScienceDaily Geology news. From the discovery of new properties of deep earth and finds in fossil magma chambers to fossil fuels and more.

  • Why Tehran is sinking dangerously
    on December 6, 2018 at 4:59 pm

    Researchers have used data from radar satellites to measure the subsidence of the Earth's surface in the Tehran region in Iran. They found out that between 2003 and 2017 three areas sank there with rates of sometimes more than 25 centimeters per year, and several meters in total. For the first time, this study traces in detail the subsidence in this region over a longer period of time. […]

  • A microbe's membrane helps it survive extreme environments
    on December 5, 2018 at 6:41 pm

    Within harsh environments like hot springs, volcanic craters and deep-sea hydrothermal vents -- uninhabitable by most life forms -- microscopic organisms are thriving. How? It's all in how they wrap themselves. […]

  • To image leaky atmosphere, NASA rocket team heads north
    on November 30, 2018 at 5:04 pm

    Earth's atmosphere is leaking, but how does oxygen get the energy to escape to space? NASA's VISIONS-2 rocket will soon launch into the unique magnetic environment near the North Pole in pursuit of an answer. […]

  • Brilliant iron molecule could provide cheaper solar energy
    on November 30, 2018 at 4:16 pm

    For the first time, researchers have succeeded in creating an iron molecule that can function both as a photocatalyst to produce fuel and in solar cells to produce electricity. The results indicate that the iron molecule could replace the more expensive and rarer metals used today. […]

  • A large volcanic eruption shook Deception Island 3,980 years ago
    on November 26, 2018 at 3:55 pm

    A large volcanic eruption shook Deception Island, in Antarctica, 3,980 years ago, and not 8,300, as it was previously thought. This event was the largest eruption in the austral continent during the Holocene, and it was comparable in volume of ejected rock to the Tambora volcano eruption in 1815. […]

  • Volcanoes and glaciers combine as powerful methane producers
    on November 20, 2018 at 12:38 pm

    Large amounts of the potent greenhouse gas methane are being released from an Icelandic glacier, scientists have discovered. A study of Sólheimajökull glacier, which flows from the active, ice-covered volcano Katla, shows that up to 41 tons of methane is being released through meltwaters every day during the summer months. […]

  • 'True polar wander' may have caused ice age
    on November 19, 2018 at 9:02 pm

    Earth's latest ice age may have been caused by changes deep inside the planet. Based on evidence from the Pacific Ocean, including the position of the Hawaiian Islands. […]

  • Climate, life and the movement of continents: New connections
    on November 15, 2018 at 9:50 pm

    A new study has demonstrated a possible link between life on Earth and the movement of continents. The findings show that sediment, which is often comprised from pieces of dead organisms, could play a key role in determining the speed of continental drift. […]

  • Earth's magnetotail: First-ever views of elusive energy explosion
    on November 15, 2018 at 7:49 pm

    Researchers have captured a difficult-to-view singular event involving 'magnetic reconnection' -- the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion -- in the Earth's magnetotail, the magnetic environment that trails behind the planet. […]

  • Massive impact crater from a kilometer-wide iron meteorite discovered in Greenland
    on November 14, 2018 at 9:00 pm

    An international team has discovered a 31-km wide meteorite impact crater buried beneath the ice-sheet in the northern Greenland. This is the first time that a crater of any size has been found under one of Earth's continental ice sheets. […]

  • Seismic study reveals huge amount of water dragged into Earth's interior
    on November 14, 2018 at 6:20 pm

    Slow-motion collisions of tectonic plates under the ocean drag about three times more water down into the deep Earth than previously estimated, according to a first-of-its-kind seismic study that spans the Mariana Trench. […]

  • Climate control of Earth's critical zone
    on November 14, 2018 at 5:03 pm

    New research by geoscientists shines a light on this hidden world from ridgetops to valley floors and shows how rainfall shapes the part of our planet that is just beyond where we can see. […]

  • Earth's magnetic field measured using artificial stars at 90 kilometers altitude
    on November 14, 2018 at 3:40 pm

    In 2011, researchers proposed that artificial guide stars could be used to measure the Earth's magnetic field in the mesosphere. An international group of scientists has recently managed to do this with a high degree of precision. The technique may also help to identify magnetic structures in the solid Earth's lithosphere, to monitor space weather, and to measure electrical currents in the part of the atmosphere called ionosphere. […]

  • Millions in danger of food insecurity due to severe Caribbean droughts
    on November 8, 2018 at 9:43 pm

    Climate change is impacting the Caribbean, with millions facing increasing food insecurity and decreasing freshwater availability as droughts become more likely across the region, according to new research. […]

  • Scientists theorize new origin story for Earth's water
    on November 7, 2018 at 6:03 pm

    Earth's water may have originated from both asteroidal material and gas left over from the formation of the Sun, according to new research. The new finding could give scientists important insights about the development of other planets and their potential to support life. […]

  • Punctuated earthquakes for New Madrid area, Missouri, U.S.
    on November 6, 2018 at 8:04 pm

    In 1811 and 1812, the region around New Madrid, Missouri, experienced a number of major earthquakes. The final and largest earthquake in this sequence occurred on the Reelfoot fault, and temporarily changed the course of the Mississippi River. […]

  • Villagers follow the geology to safer water in Bangladesh
    on November 5, 2018 at 7:31 pm

    Water researchers have found a way to fight the 'king of poisons' that accounts for one of every 20 deaths in Bangladesh. […]

  • Enhanced views of Earth tectonics
    on November 5, 2018 at 3:53 pm

    Scientists have used data from the European Space Agency (ESA), Gravity field and steady-state Ocean Circulation Explorer (GOCE) mission to unveil key geological features of the Earth's lithosphere -- the rigid outer layer that includes the crust and the upper mantle. […]

  • Ozone hole modest despite optimum conditions for ozone depletion
    on November 2, 2018 at 10:08 pm

    The ozone hole that forms in the upper atmosphere over Antarctica each September was slightly above average size in 2018, scientists reported today. […]

  • Alterations to seabed raise fears for future
    on October 29, 2018 at 8:55 pm

    The ocean floor as we know it is dissolving rapidly as a result of human activity. The seabed plays a crucial role in controlling the degree of ocean acidification by neutralizing the acidity of the water. But due to human activities, the level of CO2 in the water is so high, and the water so acidic, that the calcite on the ocean floor is simply being dissolved. […]

  • Relationship between tremors, water at the Cascadia margin
    on October 25, 2018 at 7:57 pm

    Researchers find evidence of water escaping during subduction and infiltrating sedimentary material related to small tremors that occur beneath the Pacific Northwest of the United States. […]

  • Mexico's 2017 Tehuantepec quake suggests a new worry
    on October 25, 2018 at 2:33 pm

    Last September's magnitude 8.2 Tehuantepec earthquake happened deep, rupturing both mantle and crust, on the landward side of major subduction zone in the Pacific Ocean off Mexico's far south coast. It's unanticipated location suggests a potential new threat for Central America's coastline. […]

  • Crater from asteroid that killed the dinosaurs reveals how broken rocks can flow like liquid
    on October 24, 2018 at 5:12 pm

    The same process that allows rock to flow like liquid during impact events allows 'peak rings' to form in large craters. […]

  • Mineral discoveries in the Galapagos Islands pose a puzzle as to their formation and origin
    on October 22, 2018 at 4:28 pm

    The Galapagos archipelago is one of the most famous groups of islands in the world. Many of the animal and plant species are unique because of the islands' isolated location in the Pacific, 1,000 kilometers off of the coast of Ecuador. […]

  • Earth’s inner core is solid, 'J waves' suggest
    on October 19, 2018 at 5:51 pm

    A new study could help us understand how our planet was formed. Scientists report that their research shows that Earth's inner core is solid -- a finding made possible by a new method for detecting shear waves, or 'J waves' in the inner core. […]

  • New understanding of Mekong River incision
    on October 16, 2018 at 7:42 pm

    An international team of earth scientists has linked the establishment of the Mekong River to a period of major intensification of the Asian monsoon during the middle Miocene, about 17 million years ago, findings that supplant the assumption that the river incised in response to tectonic causes. […]

  • Scientists find missing piece in glacier melt predictions
    on October 15, 2018 at 2:05 pm

    A new method for observing water within ice has revealed stored meltwater that may explain the complex flow behavior of some Greenland glaciers, an important component for predicting sea-level rise in a changing climate. […]

  • Volcano researcher learns how Earth builds supereruption-feeding magma systems
    on October 10, 2018 at 6:17 pm

    After studying layers of pumice, measuring the amount of crystals in the samples and using thermodynamic models, the team determined that magma moved closer to the surface with each successive eruption. […]

  • GeoSEA array records sliding of Mount Etna's southeastern flank
    on October 10, 2018 at 6:17 pm

    The southeast flank of Mount Etna slowly slides towards the sea. A team of scientists showed for the first time movement of Etna's underwater flank using a new, sound-based geodetic monitoring network. A sudden and rapid descent of the entire slope could lead to a tsunami with disastrous effects for the entire region. […]

  • More wet and dry weather extremes projected with global warming
    on October 4, 2018 at 12:53 pm

    Global warming is projected to spawn more extreme wet and dry weather around the world, according to a new study. Those extremes include more frequent dry spells in the northwestern, central and southern United States and in Mexico, and more frequent heavy rainfall events in south Asia, the Indochinese Peninsula and southern China. […]