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Self-assembled silica-carbonate structures and detection of ancient microfossils.
| Content Provider | Semantic Scholar |
|---|---|
| Author | García-Ruíz, Juan Manuel Hyde, Stephen T. Carnerup, Anna M. Christy, Andrew Kranendonk, M. J. Van Welham, Nicholas J. |
| Copyright Year | 2003 |
| Abstract | We have synthesized inorganic micron-sized filaments, whose microstucture consists of silica-coated nanometer-sized carbonate crystals, arranged with strong orientational order. They exhibit noncrystallographic, curved, helical morphologies, reminiscent of biological forms. The filaments are similar to supposed cyanobacterial microfossils from the Precambrian Warrawoona chert formation in Western Australia, reputed to be the oldest terrestrial microfossils. Simple organic hydrocarbons, whose sources may also be abiotic and indeed inorganic, readily condense onto these filaments and subsequently polymerize under gentle heating to yield kerogenous products. Our results demonstrate that abiotic and morphologically complex microstructures that are identical to currently accepted biogenic materials can be synthesized inorganically. |
| Starting Page | 1 |
| Ending Page | 10 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://courses.washington.edu/bangblue/Garcia-Ruiz_Inorg_ppt_biogenicity-Sci03.pdf |
| PubMed reference number | 14615534v1 |
| Volume Number | 302 |
| Issue Number | 5648 |
| Journal | Science |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Calcium Carbonate 750 MG Chewable Tablet Carbonates Heating Hydrocarbons Micron |
| Content Type | Text |
| Resource Type | Article |
