Earth’s earliest crust, formed over 4.5 billion years ago, has long been thought to have lacked the complex chemical features ...

The crater formed more than 3.5 billion years ago, making it the oldest known by ... the mantle below produced thick “blobs” ...

The crater formed more than 3.5 billion years ago, making it the oldest known ... the mantle below produced thick “blobs” of volcanic material that evolved into continental crust. Our evidence then ...

Around 14,500 years ago, toward the end of the last ice age, melting continental ice sheets drove a sudden and cataclysmic ...

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Canadian security planning has long taken for granted American contributions to continental security ... the pressures of the COVID-19 pandemic. Scenario planning was made famous by Shell oil ...

"That said, last week we changed our scenarios to reflect that the risks around our central scenario are now skewed to the downside." The investment banking firm Stifel also said in its forecast ...

Worst-case scenario: A key contributor—perhaps a 7'3" one—suffers an untimely injury For as dominant as the Cavaliers and Oklahoma City Thunder have seemed at times, it still feels reasonable ...

The Fed's interest rate decision didn't turn any heads on Wall Street, but its economic projections hint at a dire economic scenario that investors have been stressing about in recent weeks.

Their findings showed a strong correlation between wet areas of the MTZ and continental intraplate volcanism, with 42%–68% of intraplate volcanism occurring over more-water-saturated MTZ ...