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Hidden within African diamonds, a billion-plus years of deep-earth history

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IMAGE: A diamond encapsulating tiny bits of fluid from the deep earth, held here by fine tweezers, was part of a study delving into the age and origins of South African.
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Credit: Yaakov Weiss
Diamonds are sometimes described as messengers from the deep earth; scientists study them closely for insights into the otherwise inaccessible depths from which they come. But the messages are often hard to read. Now, a team has come up with a way to solve two longstanding puzzles: the ages of individual fluid-bearing diamonds, and the chemistry of their parent material. The research has allowed them to sketch out geologic events going back more than a billion years a potential breakthrough not only in the study of diamonds, but of planetary evolution. ....

New York , United States , De Beers , Free State , South Africa , Israel General , United Kingdom , Columbia University , Steven Goldstein , Jeff Harris , Gisela Winckler , Yael Kiro , Yaakov Weiss , Kevin Krajick , Nature Communications , Earth Institute , Columbia University Lamont Doherty Earth Observatory , Scotland University Of Glasgow , Hebrew University Of Jerusalem , Lamont Doherty Earth Observatory Is Columbia University , Israel Weizmann Institute Of Science , Lamont Doherty Earth Observatory , Hebrew University , Cornelia Class , Weizmann Institute , Doherty Earth Observatory ,

Hidden Within African Diamonds, a Billion-Plus Years of Deep-Earth History | Lamont-Doherty Earth Observatory

(Yaakov Weiss)
Most diamonds are thought to form some 150 to 200 kilometers under the surface, in relatively cool masses of rock beneath the continents. The process may go back as far as 3.5 billion years, and probably continues today. Occasionally, they are carried upward by powerful, deep-seated volcanic eruptions called kimberlites. (Don’t expect to see one erupt today; the youngest known kimberlite deposits are tens of millions of years old.)
Much of what we know about diamonds comes from lab experiments, and studies of other minerals and rocks that come up with the diamonds, or are sometimes even encased within them. The 10 diamonds the team studied came from mines founded by the De Beers company in and around Kimberley, South Africa. “We like the ones that no one else really wants,” said Weiss fibrous, dirty-looking specimens containing solid or liquid impurities that disqualify them as jewelry, but carry potentially valuable chemical information. Up to now, mo ....

De Beers , Free State , South Africa , Israel General , United Kingdom , South African , Steven Goldstein , Jeff Harris , Gisela Winckler , Yael Kiro , Yaakov Weiss , Kevin Krajick , Scotland University Of Glasgow , Nature Communications , Kevin Krajick Earth Institute , Hebrew University Of Jerusalem , Columbia University Lamont Doherty Earth Observatory , Israel Weizmann Institute Of Science , Columbia University , Lamont Doherty Earth Observatory , Hebrew University , Earth Institute , Cornelia Class , Weizmann Institute , டி பியர்ஸ் , இலவசம் நிலை ,

Will Global Warming Bring a Change in the Winds? Dust from the Deep Sea Provides a Clue.

Will Global Warming Bring a Change in the Winds? Dust from the Deep Sea Provides a Clue.
Image of a dust plume leaving China and crossing the Korean Peninsula and Japan. Researchers studied the dust deposited in ancient ocean sediments in order to understand how wind patterns in this area have shifted in the past. Their findings provide a better understanding of how the winds may change in the future. Credit: SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE
The westerlies or westerly winds play an important role in weather and climate both locally and on a global scale, by influencing precipitation patterns, impacting ocean circulation and steering tropical cyclones. So, finding a way to assess how they will change as the climate warms is crucial. ....

United States , Gisela Winckler , Pacific Ocean , Goddard Space Flight Center , Texasam University , Columbia University Lamont Doherty Earth Observatory , Will Global Warming Bring , Deep Sea Provides , Korean Peninsula , Columbia University , Lamont Doherty Earth Observatory , Jordan Abell , North Pacific , Eastern Asia , ஒன்றுபட்டது மாநிலங்களில் , கிசெலா விணக்கிலேர் , பெஸிஃபிக் கடல் , கோடார்ட் இடம் விமானம் மையம் , கொலம்பியா பல்கலைக்கழகம் லாமண்ட் டோவர்டீ பூமி கண்காணிப்பு , விருப்பம் உலகளாவிய வெப்பமயமாதல் கொண்டு வாருங்கள் , ஆழமான கடல் வழங்குகிறது , கொரியன் தீபகற்பம் , கொலம்பியா பல்கலைக்கழகம் , லாமண்ட் டோவர்டீ பூமி கண்காணிப்பு , ஜோர்டான் அப்பில் , வடக்கு பெஸிஃபிக் ,

Will warming bring a change in the winds? Dust from the deep sea provides a clue

NSF s mission is to advance the progress of science, a mission accomplished by funding proposals for research and education made by scientists, engineers, and educators from across the country. ....

Maija Kukla , Gisela Winckler , Pacific Ocean , Office Of International Science , Research News , Nsfpublic Affairs , Us National Science , Partnerships For International Research , Columbia University Lamont Doherty Earth Observatory , Columbia University , Lamont Doherty Earth Observatory , Science Foundation Funded , North Pacific , Eastern Asia , International Science , International Research , National Science Foundation , கிசெலா விணக்கிலேர் , பெஸிஃபிக் கடல் , அலுவலகம் ஆஃப் சர்வதேச அறிவியல் , ஆராய்ச்சி செய்தி , எங்களுக்கு தேசிய அறிவியல் , கூட்டாண்மை க்கு சர்வதேச ஆராய்ச்சி , கொலம்பியா பல்கலைக்கழகம் லாமண்ட் டோவர்டீ பூமி கண்காணிப்பு , கொலம்பியா பல்கலைக்கழகம் , லாமண்ட் டோவர்டீ பூமி கண்காணிப்பு ,

Will Global Warming Bring a Change in the Winds? Dust from the Deep Sea Provides a Clue.

Will Global Warming Bring a Change in the Winds? Dust from the Deep Sea Provides a Clue.
Image of a dust plume leaving China and crossing the Korean Peninsula and Japan. Researchers studied the dust deposited in ancient ocean sediments in order to understand how wind patterns in this area have shifted in the past. Their findings provide a better understanding of how the winds may change in the future. Credit: SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE
The westerlies or westerly winds play an important role in weather and climate both locally and on a global scale, by influencing precipitation patterns, impacting ocean circulation and steering tropical cyclones. So, finding a way to assess how they will change as the climate warms is crucial. ....

United States , Gisela Winckler , Pacific Ocean , Robert Anderson , Goddard Space Flight Center , Brown University Timothy Herbert , Texasam University , Columbia University Lamont Doherty Earth Observatory , Will Global Warming Bring , Deep Sea Provides , Korean Peninsula , Columbia University , Lamont Doherty Earth Observatory , Jordan Abell , North Pacific , Eastern Asia , Brown University , Timothy Herbert , ஒன்றுபட்டது மாநிலங்களில் , கிசெலா விணக்கிலேர் , பெஸிஃபிக் கடல் , ராபர்ட் ஆண்டர்சன் , கோடார்ட் இடம் விமானம் மையம் , பழுப்பு பல்கலைக்கழகம் தீமோத்தேயு ஹெர்பர்ட் , கொலம்பியா பல்கலைக்கழகம் லாமண்ட் டோவர்டீ பூமி கண்காணிப்பு , விருப்பம் உலகளாவிய வெப்பமயமாதல் கொண்டு வாருங்கள் ,