“Using radiometric dating, i tin notice that Earth’s oldest continents were created inwards geodynamic environments which were markedly dissimilar than electrical flow environments characterised past times plate tectonics. Therefore, plate tectonics equally nosotros know it today is non a expert model for agreement the processes at play during the earliest episodes of Earths’s history, those beyond 3 billion years ago. There was some other crust dynamic as well as crust formation that occurred nether other processes,” explains Tomas Næraa, who has been a PhD pupil at the Natural History Museum of Kingdom of Denmark as well as the Geological Survey of Kingdom of Denmark as well as Greenland — GEUS.
Plate tectonics is a theory of continental drift as well as bounding main flooring spreading. H5N1 broad hit of phenomena from volcanism, earthquakes as well as undersea earthquakes (and pursuant tsunamis) to variations inwards climate as well as species evolution on public tin move explained past times the plate tectonics model, globally recognized during the 1960’s. Tomas Næraa tin at i time demonstrate that the half-century onetime model no longer suffices.
“Plate tectonics theory tin move applied to near 3 billion years of the Earth’s history. However, the public is older, upward to 4.567 billion years old. We tin at i time demonstrate that at that spot has been a meaning shift inwards the Earth’s dynamics. Thus, the Earth, nether the showtime 3rd of its history, developed nether weather condition other than what tin move explained using the plate tectonics model,” explains Tomas Næraa. Tomas is currently employed equally a projection researcher at GEUS.
Central enquiry topic for xxx years
Since 2006, the 40-year-old Tomas Næraa has conducted studies of rocks sourced inwards the 3.85 billion year-old bedrock of the Nuuk share inwards West Greenland. Using isotopes of the chemical constituent hafnium (Hf), he has managed to shed calorie-free upon a enquiry topic that has puzzled geologists unopen to the public for xxx years. Næraa’s instructor, Professor Minik Rosing of the Natural History Museum of Kingdom of Denmark considers Næraa’s dissertation a seminal work:
“We convey come upward to sympathise the context of the Earth’s as well as continent’s origins inwards an alone novel way. Climate as well as food cycles which nourish all terrestrial organisms are driven past times plate tectonics. So, if the earth’s crust formation was controlled as well as initiated past times other factors, nosotros demand to unwrap out what controlled climate as well as the environments inwards which life began as well as evolved iv billion years ago. This telephone commutation agreement tin move of cracking significance for the agreement of futurity climate change,” says Minik Rosing, who adds that: “An enormous task waits ahead, as well as Næraas’ dissertation is an epochal step.”