Tag Archives: Earth’s

A rocky relationship: A history of Earth’s continents breaking up and getting back together

A new study of rocks that formed billions of years ago lends fresh insight into how Earth’s plate tectonics, or the movement of large pieces of Earth’s outer shell, evolved over the planet’s 4.56-billion-year history. Paleontology News — ScienceDaily

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Earth’s last magnetic field reversal took far longer than once thought

Every several hundred thousand years or so, Earth’s magnetic field dramatically shifts and reverses its polarity. Geologist found that the most recent field reversal, some 770,000 years ago, took at least 22,000 years to complete. That’s several times longer than … Continue reading

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Ancient Saharan seaway shows how Earth’s climate and creatures can undergo extreme change

A new paper integrates 20 years of research by a diverse scientific team and describes the ancient Trans-Saharan Seaway of Africa that existed 50 to 100 million years ago in the region of the current Sahara Desert. The study is … Continue reading

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Earth’s oldest animals could take trips

New research settles a longstanding debate about whether the most ancient animal communities were deliberately mobile. It turns out they were, because they were hungry. Paleontology News — ScienceDaily

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Earth’s oldest animals formed complex ecological communities

Ediacara biota were forming complex communities tens of millions of years before the Cambrian explosion. Paleontology News — ScienceDaily

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New model reveals rips in Earth’s mantle layer below southern Tibet

Seismic waves are helping researchers uncover the mysterious subsurface history of the Tibetan Plateau, possibly lending insight to future earthquake activity in the region. Paleontology News — ScienceDaily

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Scientists discover Earth’s youngest banded iron formation in western China

The discovery of Earth’s youngest-ever banded iron formation is changing how scientists understand the evolution of complex life. Paleontology News — ScienceDaily

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What caused the mass extinction of Earth’s first animals?

Fossil records tell us that the first macroscopic animals appeared on Earth about 575 million years ago. Twenty-four million years later, the diversity of animals began to mysteriously decline, leading to Earth’s first know mass extinction event. A research team … Continue reading

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Tiny fossils unlock clues to Earth’s climate half a billion years ago

Scientists have quantified the temperature of Earth’s oceans over half a billion years ago by combining fossil data and climate models. Paleontology News — ScienceDaily

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Earth’s orbital changes have influenced climate, life forms for at least 215 million years

Every 405,000 years, gravitational tugs from Jupiter and Venus slightly elongate Earth’s orbit, an amazingly consistent pattern that has influenced our planet’s climate for at least 215 million years and allows scientists to more precisely date geological events like the … Continue reading

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