Erg Chech 002
| Erg Chech 002 | |
|---|---|
Erg Chech 002 End Cut Faces | |
| Type | Ungrouped achondrite[1] |
| Shock stage | Low |
| Weathering grade | Low |
| Country | Algeria |
| Coordinates | 26°01′55″N 1°36′40″W / 26.032°N 1.611°W[1] |
| Observed fall | No |
| Found date | May 2020[1] |
| TKW | 31.78[1] |
| Alternative names | EC 002 |
| Related media on Wikimedia Commons | |
Erg Chech 002 (EC 002) is an ancient andesite meteorite discovered in the Erg Chech region of the Sahara Desert in Algeria. The fall is believed to be fragments of a achondritic protoplanet that is over 4.566 billion years old, and is believed to be the oldest known volcanic rock on Earth.[2][3] A specimen of Erg Chech 002 is held at the Maine Mineral and Gem Museum.[4]
References
- ^ a b c d "Erg Chech 002". The Meteoritical Society. Retrieved 17 March 2021.
- ^ Barrat, Jean-Alix; Chaussidon, Marc; Yamaguchi, Akira; Beck, Pierre; Villeneuve, Johan; Byrne, David J.; Broadley, Michael W.; Marty, Bernard (2021-03-16). "A 4,566-My-old andesite from an extinct chondritic protoplanet". Proceedings of the National Academy of Sciences. 118 (11) e2026129118. arXiv:2105.01911. Bibcode:2021PNAS..11820261B. doi:10.1073/pnas.2026129118. ISSN 0027-8424. PMC 7980472. PMID 33836612.
- ^ Crane, Leah (8 March 2021). "4.6-billion-year-old meteorite is the oldest volcanic rock ever found". New Scientist.
- ^ Weisberger, Mindy (2021-03-08). "4.6-billion-year-old meteorite belongs to Earth's long-lost baby cousin". livescience.com. Retrieved 2023-08-24.
External links
- Erg Chech 002 at the Meteoritical Bulletin Database