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updated Wed. May 8, 2024

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Call me obsessed, but my ongoing interest in the Anaweka waka last week took me on a 4221 km journey to the island of Huahine in French Polynesia.
The corals took up residence along the knolls sometime after the hilly terrain formed. "The oldest fossil coral we found, using isotope dating techniques, was 302,000 years old, therefore, making the landslide event that caused these knolls to be older ...

He said the team used 137-caesium and 210-lead isotope dating combined with visual analysis of sediment layers, or varves. "We have not determined the total age of Lake Cheko, we have determined the age of deepest part of 120 cm-long sediment core," ...
Determining the age of the remains was facilitated by isotope dating of basalt rock under and in the site, and paleomagnetic analyses.
The samples included were three to 4.4 billion years old, according to a dating method called radiogenic isotope dating. "The moon captures a period of time that represents the earliest formation of the solar system.
In a new research paper, Harrison and Patrick Boehnke, also of UCLA, argue the isotope dating methods might have made too many assumptions about a late bombardment.

The researchers used a technique called radiocarbon isotope dating to figure out the age of the fish. During the 1950's a significant amount of radiation was released into the atmosphere by detonated bombs.
... funded the excavation and carbon isotope dating procedure; and Gary Argabright, vice president of the Mound City Chapter of the Archaeological Society of Ohio, who coordinated emergency funding and amateur archaeologists to help with the excavation.
She studied oceanography, which changed when she became hooked on geology. She then went on to graduate school at CU. There she studied hard rock ore deposits and worked with isotope dating projects for the United States Geological Survey, where ...
When I presented this and similar criticisms of isotope dating to a gathering of the Lucas Heights Scientific Society (Sydney, Australia) in 1989, the only response that came from the chief of the division responsible for isotope dating at the ...

Satellite data showed that a majority of the world's largest aquifers are declining, and isotope dating revealed that a small fraction of the world's groundwater is being used in a renewable way.
Satellite data showed that a majority of the world's largest aquifers are declining, and isotope dating revealed that a small fraction of the world's groundwater is being used in a renewable way.
The researchers collected samples from river sediments and rock outcrops in the New South Wales southern tablelands between Canberra and Goulburn, and used beryllium isotope dating to determine their age and the rate at which they were exposed by ...
Paul Renne, the Director of the Berkeley Geochronology Center, led a recently published study that used high-resolution argon isotope dating techniques to zoom in on the precise timing of the Indian volcanism. In an earlier study, Renne and colleagues ...
When his team sampled rocks from three different volcanic centers and used argon isotope dating to determine their ages, they uncovered evidence for repeated volcanic eruptions, occurring between 19,000 and 43,000 years ago.
They used a rare isotope dating technique to work out when glaciers may have retreated. Findings indicated glaciers in the regions were actually extended during the Medieval Warm Period, with thick amounts of ice characteristic of the Little Ice Age.


 

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