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New York Post
3 hours ago
- Science
- New York Post
These rocks may be the oldest on Earth at over 4 billion years old
Scientists have identified what could be the oldest rocks on Earth from a rock formation in Canada. The Nuvvuagittuq Greenstone Belt has long been known for its ancient rocks — plains of streaked gray stone on the eastern shore of Hudson Bay in Quebec. But researchers disagree on exactly how old they are. Work from two decades ago suggested the rocks could be 4.3 billion years old, placing them in the earliest period of Earth's history. Advertisement 5 The Nuvvuagittuq Greenstone Belt has long been known for its ancient rocks — plains of streaked gray stone on the eastern shore of Hudson Bay in Quebec. AP But other scientists using a different dating method contested the finding, arguing that long-ago contaminants were skewing the rocks' age and that they were actually slightly younger, at 3.8 billion years old. In the new study, researchers sampled a different section of rock from the belt and estimated its age using the previous two dating techniques — measuring how one radioactive element decays into another over time. The result: The rocks were about 4.16 billion years old. Advertisement The different methods 'gave exactly the same age,' said study author Jonathan O'Neil, with the University of Ottawa. The new research was published Thursday in the journal Science. 5 Research from two decades ago suggested the rocks could be 4.3 billion years old, placing them in the earliest period of Earth's history. AP Earth formed about 4.5 billion years ago from a collapsing cloud of dust and gas, soon after the solar system existed. Advertisement Primordial rocks often get melted and recycled by Earth's moving tectonic plates, making them extremely rare on the surface today. Scientists have uncovered 4 billion-year-old rocks from another formation in Canada called the Acasta Gneiss Complex, but the Nuvvuagittuq rocks could be even older. 5 'To have a sample of what was going on on Earth way back then is really valuable,' said Mark Reagan with the University of Iowa, who studies volcanic rocks and lava and was not involved with the new study. AP Studying rocks from Earth's earliest history could give a glimpse into how the planet may have looked — how its roiling magma oceans gave way to tectonic plates — and even how life got started. Advertisement 'To have a sample of what was going on on Earth way back then is really valuable,' said Mark Reagan with the University of Iowa, who studies volcanic rocks and lava and was not involved with the new study. The rock formation is on tribal Inukjuak lands, and the local Inuit community has temporarily restricted scientists from taking samples from the site due to damage from previous visits. 5 Scientists believe that the Nuvvuagittuq rocks could be even older than the Acasta Gneiss Complex, found in Canada. AP 5 The rock formation is on tribal Inukjuak lands, and the local Inuit community has temporarily restricted scientists from taking samples from the site. AP After some geologists visited the site, large chunks of rock were missing, and the community noticed pieces for sale online, said Tommy Palliser, who manages the land with the Pituvik Landholding Corp. The Inuit community wants to work with scientists to set up a provincial park that would protect the land while allowing researchers to study it. 'There's a lot of interest for these rocks, which we understand,' said Palliser, a member of the community. 'We just don't want any more damage.'
1News
8 hours ago
- Science
- 1News
These Canadian rocks may be the oldest on Earth
Scientists have identified what could be the oldest rocks on Earth from a rock formation in Canada. The Nuvvuagittuq Greenstone Belt has long been known for its ancient rocks — plains of streaked grey stone on the eastern shore of Hudson Bay in Quebec. But researchers disagree on exactly how old they are. Work from two decades ago suggested the rocks could be 4.3 billion years old, placing them in the earliest period of Earth's history. But other scientists using a different dating method contested the finding, arguing that long-ago contaminants were skewing the rocks' age and that they were actually slightly younger at 3.8 billion years old. In the new study, researchers sampled a different section of rock from the belt and estimated its age using the previous two dating techniques — measuring how one radioactive element decays into another over time. The result: The rocks were about 4.16 billion years old. an outcropping of about 4.16 billion year old rocks at the Nuvvuagittuq Greenstone Belt in northeastern Canada, with a knife to indicate scale. (Source: Jonathan O'Neil via AP) ADVERTISEMENT The different methods "gave exactly the same age', said study author Jonathan O'Neil with the University of Ottawa. The new research was published today in the journal Science. Earth formed about 4.5 billion years ago from a collapsing cloud of dust and gas soon after the solar system existed. Primordial rocks often get melted and recycled by Earth's moving tectonic plates, making them extremely rare on the surface today. Scientists have uncovered 4 billion-year-old rocks from another formation in Canada called the Acasta Gneiss Complex, but the Nuvvuagittuq rocks could be even older. Studying rocks from Earth's earliest history could give a glimpse into how the planet may have looked — how its roiling magma oceans gave way to tectonic plates — and even how life got started. 'To have a sample of what was going on on Earth way back then is really valuable,' said Mark Reagan with the University of Iowa, who studies volcanic rocks and lava and was not involved with the new study. The landscape at the Nuvvuagittuq Greenstone Belt in northeastern Canada. (Source: Jonathan O'Neil via AP) The rock formation was on tribal Inukjuak lands and the local Inuit community has temporarily restricted scientists from taking samples from the site due to damage from previous visits. After some geologists visited the site, large chunks of rock were missing and the community noticed pieces for sale online, said Tommy Palliser, who managed the land with the Pituvik Landholding Corp. The Inuit community wanted to work with scientists to set up a provincial park that would protect the land while allowing researchers to study it. "There's a lot of interest for these rocks, which we understand,' said Palliser, a member of the community. "We just don't want any more damage."
The Hindu
9 hours ago
- Science
- The Hindu
These Canadian rocks may be oldest on Earth
Scientists have identified what could be the oldest rocks on Earth from a rock formation in Canada. The Nuvvuagittuq Greenstone Belt has long been known for its ancient rocks — plains of streaked gray stone on the eastern shore of Hudson Bay in Quebec. But researchers disagree on exactly how old they are. Work from two decades ago suggested the rocks could be 4.3 billion years old, placing them in the earliest period of Earth's history. But other scientists using a different dating method contested the finding, arguing that long-ago contaminants were skewing the rocks' age and that they were actually slightly younger at 3.8 billion years old. In the new study, researchers sampled a different section of rock from the belt and estimated its age using the previous two dating techniques — measuring how one radioactive element decays into another over time. The result: The rocks were about 4.16 billion years old. The different methods "gave exactly the same age,' said study author Jonathan O'Neil with the University of Ottawa. The new research was published Thursday in the journal Science. Earth formed about 4.5 billion years ago from a collapsing cloud of dust and gas soon after the solar system existed. Primordial rocks often get melted and recycled by Earth's moving tectonic plates, making them extremely rare on the surface today. Scientists have uncovered 4 billion-year-old rocks from another formation in Canada called the Acasta Gneiss Complex, but the Nuvvuagittuq rocks could be even older. Studying rocks from Earth's earliest history could give a glimpse into how the planet may have looked — how its roiling magma oceans gave way to tectonic plates — and even how life got started. 'To have a sample of what was going on on Earth way back then is really valuable,' said Mark Reagan with the University of Iowa, who studies volcanic rocks and lava and was not involved with the new study. The rock formation is on tribal Inukjuak lands and the local Inuit community has temporarily restricted scientists from taking samples from the site due to damage from previous visits. After some geologists visited the site, large chunks of rock were missing and the community noticed pieces for sale online, said Tommy Palliser, who manages the land with the Pituvik Landholding Corp. The Inuit community wants to work with scientists to set up a provincial park that would protect the land while allowing researchers to study it. 'There's a lot of interest for these rocks, which we understand,' said Palliser, a member of the community. 'We just don't want any more damage.'
Boston Globe
13 hours ago
- Science
- Boston Globe
These Canadian rocks may be the oldest on Earth
In the new study, researchers sampled a different section of rock from the belt and estimated its age using the previous two dating techniques — measuring how one radioactive element decays into another over time. The result: The rocks were about 4.16 billion years old. The different methods 'gave exactly the same age,' said study author Jonathan O'Neil with the University of Ottawa. Advertisement The new research was published Thursday in the journal Science. Earth formed about 4.5 billion years ago from a collapsing cloud of dust and gas soon after the solar system existed. Primordial rocks often get melted and recycled by Earth's moving tectonic plates, making them extremely rare on the surface today. Scientists have uncovered 4 billion-year-old rocks from another formation in Canada called the Acasta Gneiss Complex, but the Nuvvuagittuq rocks could be even older. Studying rocks from Earth's earliest history could give a glimpse into how the planet may have looked — how its roiling magma oceans gave way to tectonic plates — and even how life got started. Advertisement 'To have a sample of what was going on on Earth way back then is really valuable,' said Mark Reagan with the University of Iowa, who studies volcanic rocks and lava and was not involved with the new study. The rock formation is on tribal Inukjuak lands and the local Inuit community has temporarily restricted scientists from taking samples from the site due to damage from previous visits. After some geologists visited the site, large chunks of rock were missing and the community noticed pieces for sale online, said Tommy Palliser, who manages the land with the Pituvik Landholding Corp. The Inuit community wants to work with scientists to set up a provincial park that would protect the land while allowing researchers to study it. 'There's a lot of interest for these rocks, which we understand,' said Palliser, a member of the community. 'We just don't want any more damage.'
Yahoo
18 hours ago
- Science
- Yahoo
These Canadian rocks may be the oldest on Earth
NEW YORK (AP) — Scientists have identified what could be the oldest rocks on Earth from a rock formation in Canada. The Nuvvuagittuq Greenstone Belt has long been known for its ancient rocks — plains of streaked gray stone on the eastern shore of Hudson Bay in Quebec. But researchers disagree on exactly how old they are. Work from two decades ago suggested the rocks could be 4.3 billion years old, placing them in the earliest period of Earth's history. But other scientists using a different dating method contested the finding, arguing that long-ago contaminants were skewing the rocks' age and that they were actually slightly younger at 3.8 billion years old. In the new study, researchers sampled a different section of rock from the belt and estimated its age using the previous two dating techniques — measuring how one radioactive element decays into another over time. The result: The rocks were about 4.16 billion years old. The different methods "gave exactly the same age,' said study author Jonathan O'Neil with the University of Ottawa. The new research was published Thursday in the journal Science. Earth formed about 4.5 billion years ago from a collapsing cloud of dust and gas soon after the solar system existed. Primordial rocks often get melted and recycled by Earth's moving tectonic plates, making them extremely rare on the surface today. Scientists have uncovered 4 billion-year-old rocks from another formation in Canada called the Acasta Gneiss Complex, but the Nuvvuagittuq rocks could be even older. Studying rocks from Earth's earliest history could give a glimpse into how the planet may have looked — how its roiling magma oceans gave way to tectonic plates — and even how life got started. 'To have a sample of what was going on on Earth way back then is really valuable,' said Mark Reagan with the University of Iowa, who studies volcanic rocks and lava and was not involved with the new study. The rock formation is on tribal Inukjuak lands and the local Inuit community has temporarily restricted scientists from taking samples from the site due to damage from previous visits. After some geologists visited the site, large chunks of rock were missing and the community noticed pieces for sale online, said Tommy Palliser, who manages the land with the Pituvik Landholding Corp. The Inuit community wants to work with scientists to set up a provincial park that would protect the land while allowing researchers to study it. 'There's a lot of interest for these rocks, which we understand,' said Palliser, a member of the community. 'We just don't want any more damage.' ___ The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.
