A rare glimpse of our first ancestors in mainland SoutheastAsia macquarie_uni NatureComms
. This placed a heavy burden on the luminescence dating of sediments to form the backbone of the timeline.
"Without luminescence dating this vital evidence would still have no timeline and the site would be overlooked in the accepted path of dispersal through the region," says Macquarie University geochronologist Associate Professor Kira Westaway."Luckily the technique is versatile and can be adapted for different challenges."
In this study, the team overcame these issues by creatively applying strategic dating techniques where possible, such as the uranium-series dating of a stalactite tip that had been buried in sediment, and the use of uranium-series dating coupled with electron-spin-resonance dating techniques to two rare but complete bovid teeth, unearthed at 6.5 meters.
The team supported the dating evidence with a detailed analysis of the sediments to assess the origin of the fossils using micromorphology, a technique that examines sediments under a microscope to establish the integrity of the layers. This key component of the new chronology helped establish that there was a consistent accumulation of sedimentary layers over a long period.
Indonesia Berita Terbaru, Indonesia Berita utama
Similar News:Anda juga dapat membaca berita serupa dengan ini yang kami kumpulkan dari sumber berita lain.
23-year-old woman shot in neck, killed at Southeast Dallas partyInvestigators later learned that there was a large celebration in the courtyard of an apartment complex and that several shots were fired.
Baca lebih lajut »
Argument between neighbors turns into deadly shooting in southeast Houston, police sayAlthough details are limited, the Houston Police Department said the shooting happened during an argument with neighbors who live on Kirkglen Drive.
Baca lebih lajut »
2 shot, 1 injured on southeast side of IndianapolisIndianapolis Metropolitan Police Department officers responded to South State Avenue and Palmer Street on a report of a person shot at 9 p.m.
Baca lebih lajut »
8-year-old girl in critical condition after southeast Houston crash that killed 2An 8-year-old girl is in critical condition after a crash in southeast Houston on Sunday night.
Baca lebih lajut »