The Nadir crater is an undersea feature on the in the Atlantic Ocean, 248 mi (400 km) off the coast of Guinea. It is suggested to be an impact crater. The feature is named after the , located 100 km to the south, and is around 8.5-km-wide. The paper announcing the discovery of the feature was published in Science Advances in 2022. It has been proposed that the structure be drilled to confirm/disprove the impact origin.
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| - Cratère Nadir (fr)
- Nadir crater (en)
- Cratera de Nadir (pt)
- 納迪爾隕石坑 (zh)
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| - The Nadir crater is an undersea feature on the in the Atlantic Ocean, 248 mi (400 km) off the coast of Guinea. It is suggested to be an impact crater. The feature is named after the , located 100 km to the south, and is around 8.5-km-wide. The paper announcing the discovery of the feature was published in Science Advances in 2022. It has been proposed that the structure be drilled to confirm/disprove the impact origin. (en)
- Le cratère Nadir est une structure géologique circulaire découverte en 2022 dans l'océan Atlantique, à 400 km au large de la Guinée, à la limite du plateau continental, et possiblement un cratère d'impact. Enfoui sous 300 à 400 mètres de sédiments, il mesure 8,5 kilomètres de diamètre. Vraisemblablement d'origine cosmique et non volcanique, il date d'il y a 66 Ma, ce qui correspond à l'extinction Crétacé-Paléogène qui a vu la disparition des dinosaures. L'objet céleste à l'origine du cratère Nadir pourrait ainsi provenir du même objet qui aurait donné celui ayant formé le cratère de Chicxulub. (fr)
- A cratera de Nadir é uma feição submarina no Planalto da Guiné, no Oceano Atlântico, 400 km da costa da Guiné e a 300 metros abaixo do mar e alega-se que representa uma cratera de impacto. A feição foi nomeada devido ao Monte Submarino de Nadir, 100km ao sul com um diâmetro de 8,5km. (pt)
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| - The Nadir crater is an undersea feature on the in the Atlantic Ocean, 248 mi (400 km) off the coast of Guinea. It is suggested to be an impact crater. The feature is named after the , located 100 km to the south, and is around 8.5-km-wide. The paper announcing the discovery of the feature was published in Science Advances in 2022. It has been proposed that the structure be drilled to confirm/disprove the impact origin. (en)
- Le cratère Nadir est une structure géologique circulaire découverte en 2022 dans l'océan Atlantique, à 400 km au large de la Guinée, à la limite du plateau continental, et possiblement un cratère d'impact. Enfoui sous 300 à 400 mètres de sédiments, il mesure 8,5 kilomètres de diamètre. Vraisemblablement d'origine cosmique et non volcanique, il date d'il y a 66 Ma, ce qui correspond à l'extinction Crétacé-Paléogène qui a vu la disparition des dinosaures. L'objet céleste à l'origine du cratère Nadir pourrait ainsi provenir du même objet qui aurait donné celui ayant formé le cratère de Chicxulub. Une proposition de forage de la structure a été faite dans le cadre du programme IODP, afin de valider son origine cosmique. (fr)
- A cratera de Nadir é uma feição submarina no Planalto da Guiné, no Oceano Atlântico, 400 km da costa da Guiné e a 300 metros abaixo do mar e alega-se que representa uma cratera de impacto. A feição foi nomeada devido ao Monte Submarino de Nadir, 100km ao sul com um diâmetro de 8,5km. A estrutura fica a uma profundidade relativamente rasa de 300 a 400m abaixo do assoalho oceânico e é acessível por perfuração de amostragem. A descoberta foi anunciada em 2022 pelo periódico Science Advances. A cratera foi descoberta pelo geólogo Uisdean Nicholson da Universidade Heriot-Watt, da Escócia, enquanto analisava dados de pesquisas sísmicas da região. Os resultados iniciais foram publicados no International Ocean Discovery Program, ainda em 2021. (pt)
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