Organic Globules in the Tagish Lake Meteorite: Remnants of the Protosolar Disk

• Published in: Science
• Main Authors: Nakamura-Messenger, Keiko, Messenger, Scott, Keller, Lindsay P., Clemett, Simon J., Zolensky, Michael E.
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Association for the Advancement of Science (AAAS) 2006
• Subjects: Tagish; Tagish Lake
• Online Access: http://dx.doi.org/10.1126/science.1132175; https://www.science.org/doi/pdf/10.1126/science.1132175

Coordinated transmission electron microscopy and isotopic measurements of organic globules in the Tagish Lake meteorite shows that they have elevated ratios of nitrogen-15 to nitrogen-14 (1.2 to 2 times terrestrial) and of deuterium to hydrogen (2.5 to 9 times terrestrial). These isotopic anomalies...