The 993–994 carbon-14 spike was a rapid 9.1% increase in carbon-14 isotope content from tree rings. This event was also confirmed with an associated increase of beryllium-10 in Antarctic ice core samples, supporting the hypothesis that this event was of solar origin. There were several astronomical observations during this time that correspond with the 14C and 10B spikes, but these texts are few and far between.
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| - 993–994 carbon-14 spike (en)
- Lonjakan karbon-14 993–994 (in)
- Pic de carbone 14 de 993-994 (fr)
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| - Le pic de carbone 14 de 993-994 est une brusque augmentation de la concentration de carbone 14 observée dans les cernes des arbres datés des années 993 ou 994 EC, suivant celui de 774-775. Il pourrait être lui aussi issu d'une forte éruption solaire. (fr)
- Lonjakan karbon-14 993–994 adalah peningkatan cepat kandungan karbon-14 dari lingkaran pohon, peningkatan ini adalah lonjakan yang terjadi mengikuti . Peristiwa ini juga dikonfirmasi oleh peningkatan tajam berilium-10 dan karenanya dianggap berasal dari badai matahari. Lonjakan karbon ini mungkin terjadi akibat badai matahari masif karena serangkaian pengamatan aurora diketahui telah diamati pada akhir tahun 992. (in)
- The 993–994 carbon-14 spike was a rapid 9.1% increase in carbon-14 isotope content from tree rings. This event was also confirmed with an associated increase of beryllium-10 in Antarctic ice core samples, supporting the hypothesis that this event was of solar origin. There were several astronomical observations during this time that correspond with the 14C and 10B spikes, but these texts are few and far between. (en)
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| - The 993–994 carbon-14 spike was a rapid 9.1% increase in carbon-14 isotope content from tree rings. This event was also confirmed with an associated increase of beryllium-10 in Antarctic ice core samples, supporting the hypothesis that this event was of solar origin. There were several astronomical observations during this time that correspond with the 14C and 10B spikes, but these texts are few and far between. In 2021, a scientific paper used the 993–994 carbon-14 spike as a benchmark in dendrochronology (tree-ring studies) to precisely determine that Vikings were present in L’Anse aux Meadows in Newfoundland exactly 1000 years prior, in 1021 AD. (en)
- Le pic de carbone 14 de 993-994 est une brusque augmentation de la concentration de carbone 14 observée dans les cernes des arbres datés des années 993 ou 994 EC, suivant celui de 774-775. Il pourrait être lui aussi issu d'une forte éruption solaire. (fr)
- Lonjakan karbon-14 993–994 adalah peningkatan cepat kandungan karbon-14 dari lingkaran pohon, peningkatan ini adalah lonjakan yang terjadi mengikuti . Peristiwa ini juga dikonfirmasi oleh peningkatan tajam berilium-10 dan karenanya dianggap berasal dari badai matahari. Lonjakan karbon ini mungkin terjadi akibat badai matahari masif karena serangkaian pengamatan aurora diketahui telah diamati pada akhir tahun 992. (in)
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