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UrduBremen climate scientists disclose changing feedback mechanisms between climate and global carbon cycle over the last 35 million years
Tag: GEOPHYSICS/GRAVITY
210Pb dating of marine sedimentary cores
Laboratories from 14 countries (with different levels of experience in radiometric measurement of radionuclides in environmental samples and in the application of the 210 Pb dating method) participated in an interlaboratory comparison (ILC) exercise related to the application of the…
Earthquake forecasting clues unearthed in strange precariously balanced rocks
Precariously balanced rocks (PBRs) are formations found throughout the world where a slender boulder is balanced precariously on a pedestal boulder. They form as blocks preserved on cliffs, or when softer rocks erode and leave the harder rocks behind. They…
USask water scientist honored with prestigious international lifetime achievement award
SASKATOON – University of Saskatchewan (USask) hydrologist Jay Famiglietti has been awarded the 2020 Hydrologic Sciences Award by the American Geophysical Union (AGU) for outstanding contributions to the science of water over his career. Famiglietti, executive director of USask’s Global…
Stellar explosion in Earth’s proximity
Discovery of iron-60 and manganese-53 substantiates supernova 2.5 million years ago
Geoscience: Cosmic diamonds formed during gigantic planetary collisions
International research team solves theory of how diamonds formed inside protoplanets
Remnants of an ancient asteroid shed new light on the early solar system
Researchers have shaken up a once accepted timeline for cataclysmic events in the early solar system.
How earthquake swarms arise
Stanford model shows how fluids unlock faults to unleash earthquake swarms
Stability check on Antarctica reveals high risk for long-term sea-level rise
The warmer it gets, the faster Antarctica loses ice – and much of it will then be gone forever. Consequences for the world’s coastal cities and cultural heritage sites would be detrimental, from London to Mumbai, and from New York…
Seismic data explains continental collision beneath Tibet
In addition to being the last horizon for adventurers and spiritual seekers, the Himalaya region is a prime location for understanding geological processes. It hosts world-class mineral deposits of copper, lead, zinc, gold and silver, as well as rarer elements…
Earth MRI funds critical minerals projects in twenty-one states
A total of $7.97 million will fund new research and preserve important data across the Nation
Ryugu’s rocky past
Different kinds of rocks on Ryugu provide clues to the asteroid’s turbulent history
Indian monsoon can be predicted better after volcanic eruptions
Large volcanic eruptions can help to forecast the monsoon over India – the seasonal rainfall that is key for the country’s agriculture and thus for feeding one billion people. As erratic as they are, volcanic eruptions improve the predictability, an…
Detaching and uplifting, not bulldozing
For a long time, geoscientists have assumed that the Alps were formed when the Adriatic plate from the south collided with the Eurasian plate in the north. According to the textbooks, the Adriatic plate behaved like a bulldozer, thrusting rock…
Droughts in the Amazon rainforest can be predicted up to 18 months in advance
Monitoring surface temperatures in two regions of the Atlantic Ocean will reliably forecast droughts in South America.
Rebirth of a volcano
For the first time, long-term photogrammetic series document the “life cycle” of a volcano. The analyses shows that volcanoes have a kind of memory
Unraveling 66 million years of climate history from ocean sediments
Based on extensive data analysis, an international team publishes global reference curve in the journal Science
The story of a cosmological experiment
The dark energy survey
Surprise on Mars
An observer standing on Mars would see the planet’s moon Phobos cross the sky from west to east every five hours. Its orbit passes between the sun and any given point on Mars about once each Earth year. Each time…
Japan’s geologic history in question after discovery of metamorphic rock microdiamonds
A collaboration of researchers based in Kumamoto University , Japan have discovered microdiamonds in the Nishisonogi metamorphic rock formation in Nagasaki Prefecture, Japan. Microdiamonds in metamorphic rocks are important minerals because they form in continental collision zones and show that…
Deep underground forces explain quakes on San Andreas Fault
Rock-melting forces occurring much deeper in the Earth than previously understood appear to drive tremors along a notorious segment of California’s San Andreas Fault, according to new USC research that helps explain how quakes happen. The study from the emergent…
Springer Nature launches its first textbook as part of the newly established MOOC&BOOK
Textbook on Archaeoastronomy is linked to the online course The Science of Stars and Stones at Politecnico di Milano
Quantum simulation of quantum crystals
The quantum properties underlying crystal formation can be replicated and investigated with the help of ultracold atoms. A team led by Dr. Axel U. J. Lode from the University of Freiburg’s Institute of Physics has now described in the journal…
Meteorite strikes may create unexpected form of silica
When a meteorite hurtles through the atmosphere and crashes to Earth, how does its violent impact alter the minerals found at the landing site?
The age of the Earth’s inner core revised
By creating conditions akin to the center of the Earth inside a laboratory chamber, researchers have improved the estimate of the age of our planet’s solid inner core, putting it at 1 billion to 1.3 billion years old. The results…
Greenland ice sheet shows losses in 2019
AWI researchers confirm record ice losses in Greenland in 2019 based on data from the GFZ/NASA satellite mission GRACE Follow-On
More than half of world’s oceans already being affected by climate change
First estimate of the point at which areas of the world’s oceans will show evidence of the impacts of climate change
Researchers identify human influence as key agent of ocean warming patterns in the future
The oceans play an important role in regulating our climate and its change by absorbing heat and carbon. The implications of their results, published today in Nature , are significant because regional sea level, affecting coastal populations around the world,…
University of Oklahoma researcher receives grant to increase geothermal energy production
NORMAN, OKLA. – Ahmad Ghassemi, the McCasland Chair and professor of petroleum engineering at the Mewbourne College of Earth and Energy at the University of Oklahoma, received $2.5 million of a $28 million grant from the U.S. Department of Energy…
Understanding matter at atom-crushing densities
Newly formed center to study principles that affect planetary bodies
Citizen scientists help geologists to identify earthquakes and tectonic tremors
Citizens outperform AI after only one hour of training
Researchers: What’s in oilfield wastewater matters for injection-induced earthquakes
A team of geoscience researchers in the Virginia Tech College of Science has developed a new theory to explain how and why injection-induced earthquakes continue to occur even when injection rates decline. Experts have known since the 1960s that when…
Bay Area coastal flooding triggers regionwide commute disruptions
For decades, the low-lying neighborhoods along the San Francisco Bay have experienced coastal flooding and the subsequent traffic disruptions. But a new computational model by Stanford researchers reveals that, due to the nature of road networks in the region, commuters…
Smartphones prove to be time-saving analytical tools
Seemingly everyone has a smartphone in their pocket, and we find new uses for them every day. They can help us avoid traffic jams or connect us to family from afar. They can even translate languages on the fly. Now,…
Rock debris protects glaciers from climate change more than previously known
A new study which provides a global estimate of rock cover on the Earth’s glaciers has revealed that the expanse of rock debris on glaciers, a factor that has been ignored in models of glacier melt and sea level rise, could be significant.
New study reveals lower energy limit for life on Earth
An international team of researchers led by Queen Mary University of London have discovered that microorganisms buried in sediment beneath the seafloor can survive on less energy than was previously known to support life. The study has implications for understanding…
How the seafloor of the Antarctic Ocean is changing – and the climate is following suit
The glacial history of the Antarctic is currently one of the most important topics in climate research. Why? Because worsening climate change raises a key question: How did the ice masses of the southern continent react to changes between cold…
Iron-rich meteorites show record of core crystallization in system’s oldest planetesimals
To truly understand what makes our planet capable of sustaining life, and to look for habitable worlds elsewhere, it is crucial to understand its interior–past and present
Seismic background noise drastically reduced due to COVID-19 lockdown measures
Global COVID-19 “lockdown” measures – the quarantines, physical isolation, travel restrictions and widespread closures of services and industry that countries around the world have implemented in 2020 – resulted in a months-long reduction in global seismic noise by up to…
COVID-19 lockdown caused 50% global reduction in human-linked Earth vibrations
This quiet period, likely caused by the total global effect of social distancing measures, closure of services and industry, and drops in tourism and travel, is the longest and most pronounced quiet period of seismic noise in recorded history. The…
2,000 years of storms in the Caribbean
Geoscientists from Goethe University create sedimentary archive with annual resolution
The Venus ‘ring of fire’
Years ago, planetary researchers discovered unusual circular structures on the surface of Venus when observing high-?resolution images from NASA’s Magellan mission. Such structures are known as coronae (from the Latin meaning “crowns”; singular: corona). A few years ago, a team…
Experts’ high-flying study reveals secrets of soaring birds
New research has revealed when it comes to flying the largest of birds don’t rely on flapping to move around. Instead they make use of air currents to keep them airborne for hours at a time.
Plato was right. Earth is made, on average, of cubes
The ancient Greek philosopher was on to something, researchers found
Simulations shows magnetic field can change 10 times faster than previously thought
A new study by the University of Leeds and University of California at San Diego reveals that changes in the direction of the Earth’s magnetic field may take place 10 times faster than previously thought.
How volcanoes explode in the deep sea
Most volcanic eruptions take place unseen at the bottom of the world’s oceans. In recent years, oceanography has shown that this submarine volcanism not only deposits lava but also ejects large amounts of volcanic ash.
Precise measurement of liquid iron density under extreme conditions
A big step forward in estimating the chemical composition of the Earth’s core
FSU News: MagLab geochemists solve mystery of Earth’s vanishing crust
TALLAHASSEE, Fla. — Thank goodness for the Earth’s crust: It is, after all, that solid, outermost layer of our planet that supports everything above it. But much of what happens below that layer remains a mystery, including the fate of…
Scientists modelled natural rock arcades
Researchers from Russia and the Czech Republic performed numerical modelling of natural rock arcades using a mathematical model that describes a succession of arches forming as a result of weathering and then turning into rock pillars without human involvement, despite…
Scientists modelled natural rock arcades
Researchers from Russia and the Czech Republic performed numerical modelling of natural rock arcades using a mathematical model that describes a succession of arches forming as a result of weathering and then turning into rock pillars without human involvement, despite…