Tag Archives: caused
Large volcanic eruption may have caused the first mass extinction
These are Ordovician-Silurian marine fossils Researchers in the USA and Japan say they may have found the cause of the first mass extinction of life. There have been five mass extinctions since the divergent evolution of early animals 600 -450 … Continue reading
Retreating Yukon glacier caused a river to disappear
A postmortem of the first known case of ‘river piracy’ in modern times outlines how a retreating glacier in the Yukon diverted water from one river to another, leading to many downstream effects. Geology News — ScienceDaily
Enhanced weathering and CO2 drawdown caused by latest Eocene strengthening of the Atlantic meridional overturning circulation
Nature Geoscience 10, 213 (2017). doi:10.1038/ngeo2888 Authors: Geneviève Elsworth, Eric Galbraith, Galen Halverson & Simon Yang Nature Geoscience – Issue – nature.com science feeds
Historical carbon dioxide emissions brought on by land-use modifications are probably bigger than assumed
Nature Geoscience 10, seventy nine (2017). doi:10.1038/ngeo2882 Authors: A. Arneth, J. Sitch, C. Pongratz, O. A. Stocker, K. Ciais, C. Poulter, A. A. Bayer, A. Bondeau, L. Calle, L. K. Chini, T. Gasser, M. Fader, G. Friedlingstein, W. Kato, W. … Continue reading
Posted in Geology
Tagged carbon, caused, changes, dioxide, emissions, historical, larger
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A supervolcano caused the largest eruption in European history. Now it’s stirring again.
A supervolcano caused the largest eruption in European history. Set to blow? Supervolcano Campi Flegrei reawakening near Naples, could hit 500000 people A 12-km wide cauldron that forms a vast supervolcano on the coast of Italy is showing signs of … Continue reading
Posted in Geology
Tagged again, caused, eruption, European, history, Largest, supervolcano
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Studies refute hypothesis on what caused abrupt climate change thousands of years ago
Two new studies refute the hypothesis that one or more comets/bolides struck North America approximately 12,900 years ago triggering rapid climate change and the start of the Younger Dryas period. Paleontology News — ScienceDaily
Mega-eruptions Caused Mass Extinction
This diagram shows the Pacific large igneous provinces included in a study by Virginia Tech Department of Geosciences researchers. Sections colored in red were visited by Esteban Gazel and his team, while the entire Pacific Large Low Shear Velocity Province … Continue reading
Exploring gigantic volcanic eruptions that caused worldwide mass extinctions
A new article confirms a major feature in the formation of large igneous provinces — massive worldwide volcanic eruptions that created incredibly high volumes of lava and triggered environmental catastrophes and mass extinctions from 170 to 90 million years ago. … Continue reading
USGS: Oklahoma quake likely caused by wastewater disposal
Image source: Geer Association The third-largest earthquake in Oklahoma was likely triggered by underground disposal of wastewater from oil and natural gas production, the U.S. Geological Survey found in a report issued Monday. The magnitude 5.1 quake that struck northwest … Continue reading
Meteorite impact 55 million years ago may have caused Earth to heat up
Around 55 million years ago, Earth experienced a series of sudden and extreme global warming events, known as the Paleocene-Eocene Thermal Maximum (PETM). A comet smashing into ancient Earth may have set off catastrophic global warmingResearchers have found evidence that … Continue reading