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A calcium–aluminium-rich inclusion or Ca–Al-rich inclusion (CAI) is a submillimeter- to centimeter-sized light-colored calcium- and aluminium-rich inclusion found in carbonaceous chondrite meteorites. The four CAIs that have been dated using the Pb-Pb chronometer yield a weighted mean age of 4567.30 ± 0.16 Myr. As CAIs are the oldest dated solids, this age is commonly used to define the age of the Solar System.

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  • تضمين غني بالكالسيوم والألومنيوم (ar)
  • Calcium-Aluminium-reiche Einschlüsse (de)
  • Calcium–aluminium-rich inclusion (en)
  • Inclusione ricca di calcio e alluminio (it)
  • Inclusion minérale riche en calcium et en aluminium (fr)
  • 칼슘-알루미늄 포유물 (ko)
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  • التضمينات الغنية بالكالسيوم والألومنيوم هي تضمينات أبعادها تتراوح دون الميليمتر إلى السنتيمتر ذات لون فاتح وذات تركيب غني بعنصري الكالسيوم والألومنيوم داخل الأحجار النيزكية من الكوندريت. يمكن أن يقدر عمر هذه التضمينات في الحجار النيزكية باستخدام تقنية التأريخ بنظائر رصاص-رصاص، مثلما أجرى لأربعة تضمينات في إحدى الدراسات. (ar)
  • A calcium–aluminium-rich inclusion or Ca–Al-rich inclusion (CAI) is a submillimeter- to centimeter-sized light-colored calcium- and aluminium-rich inclusion found in carbonaceous chondrite meteorites. The four CAIs that have been dated using the Pb-Pb chronometer yield a weighted mean age of 4567.30 ± 0.16 Myr. As CAIs are the oldest dated solids, this age is commonly used to define the age of the Solar System. (en)
  • Calcium-Aluminium-reiche Einschlüsse (abgekürzt „CAI“ von engl. Ca-Al-rich Inclusions) sind mikrometer- bis zentimetergroße hellfarbige Einschlüsse, die in vielen chondritischen Meteoriten, vor allem in kohligen Chondriten, vorkommen. Darüber hinaus wurden CAI-ähnliche Fragmente in Proben des Kometen Wild 2 gefunden, die die Stardust-Sonde Anfang 2006 zur Erde brachte. CAIs bildeten sich zu Beginn der Entstehung unseres Sonnensystems und gehören mit einem Alter von ~4,6 Milliarden Jahren zu den ältesten bekannten Objekten. (de)
  • Les inclusions minérales riches en calcium et en aluminium, en anglais calcium-aluminium-rich inclusions ou Ca-Al-rich Inclusions (CAI), sont des enclaves réfractaires de taille submillimétrique à centimétrique, formées essentiellement de minéraux notablement riches en calcium et en aluminium, qu'on trouve dans les météorites du type chondrite carbonée. Elles sont visibles sous la forme de taches claires dans la météorite. Formées il y a 4 567 à 4 571 millions d'années, elles constituent les matériaux les plus anciens du Système solaire. (fr)
  • Un'Inclusione ricca di calcio e alluminio, anche detta calcium-aluminium-rich inclusion o abbreviata in Ca-Al-rich Inclusion o CAI, è un'inclusione refrattaria ricca di calcio e alluminio che si trova in alcune meteoriti primitive. Si tratta di inclusioni chiare le cui dimensioni vanno da meno di un millimetro fino a circa un centimetro. Queste inclusioni, essendosi formate circa tra 4567 e 4571 milioni di anni fa, sono tra le sostanze più antiche presenti nel Sistema Solare. (it)
  • 칼슘-알루미늄 포유물(영어: calcium–aluminium-rich inclusion; CAI)은 에서 나타나는, 밀리미터-센티미터 수준 크기의 칼슘과 알루미늄의 이다. CAI는 으로 생성시기를 측정할 수 있다. 현재까지 측정된 네 개의 CAI의 평균 나이는 45억 6730만 ± 16만년 이었다. CAI는 태양계에서 가장 오래된 고체 중 하나로서, 태양계의 나이를 규정하는 기준이 된다. (ko)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/CAI-in-chondrite.jpg
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  • التضمينات الغنية بالكالسيوم والألومنيوم هي تضمينات أبعادها تتراوح دون الميليمتر إلى السنتيمتر ذات لون فاتح وذات تركيب غني بعنصري الكالسيوم والألومنيوم داخل الأحجار النيزكية من الكوندريت. يمكن أن يقدر عمر هذه التضمينات في الحجار النيزكية باستخدام تقنية التأريخ بنظائر رصاص-رصاص، مثلما أجرى لأربعة تضمينات في إحدى الدراسات. (ar)
  • A calcium–aluminium-rich inclusion or Ca–Al-rich inclusion (CAI) is a submillimeter- to centimeter-sized light-colored calcium- and aluminium-rich inclusion found in carbonaceous chondrite meteorites. The four CAIs that have been dated using the Pb-Pb chronometer yield a weighted mean age of 4567.30 ± 0.16 Myr. As CAIs are the oldest dated solids, this age is commonly used to define the age of the Solar System. (en)
  • Calcium-Aluminium-reiche Einschlüsse (abgekürzt „CAI“ von engl. Ca-Al-rich Inclusions) sind mikrometer- bis zentimetergroße hellfarbige Einschlüsse, die in vielen chondritischen Meteoriten, vor allem in kohligen Chondriten, vorkommen. Darüber hinaus wurden CAI-ähnliche Fragmente in Proben des Kometen Wild 2 gefunden, die die Stardust-Sonde Anfang 2006 zur Erde brachte. CAIs bildeten sich zu Beginn der Entstehung unseres Sonnensystems und gehören mit einem Alter von ~4,6 Milliarden Jahren zu den ältesten bekannten Objekten. (de)
  • Les inclusions minérales riches en calcium et en aluminium, en anglais calcium-aluminium-rich inclusions ou Ca-Al-rich Inclusions (CAI), sont des enclaves réfractaires de taille submillimétrique à centimétrique, formées essentiellement de minéraux notablement riches en calcium et en aluminium, qu'on trouve dans les météorites du type chondrite carbonée. Elles sont visibles sous la forme de taches claires dans la météorite. Formées il y a 4 567 à 4 571 millions d'années, elles constituent les matériaux les plus anciens du Système solaire. (fr)
  • Un'Inclusione ricca di calcio e alluminio, anche detta calcium-aluminium-rich inclusion o abbreviata in Ca-Al-rich Inclusion o CAI, è un'inclusione refrattaria ricca di calcio e alluminio che si trova in alcune meteoriti primitive. Si tratta di inclusioni chiare le cui dimensioni vanno da meno di un millimetro fino a circa un centimetro. Queste inclusioni, essendosi formate circa tra 4567 e 4571 milioni di anni fa, sono tra le sostanze più antiche presenti nel Sistema Solare. (it)
  • 칼슘-알루미늄 포유물(영어: calcium–aluminium-rich inclusion; CAI)은 에서 나타나는, 밀리미터-센티미터 수준 크기의 칼슘과 알루미늄의 이다. CAI는 으로 생성시기를 측정할 수 있다. 현재까지 측정된 네 개의 CAI의 평균 나이는 45억 6730만 ± 16만년 이었다. CAI는 태양계에서 가장 오래된 고체 중 하나로서, 태양계의 나이를 규정하는 기준이 된다. (ko)
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