English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/9633
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Self-Assembled Silica-Carbonate Structures and Detection of Ancient Microfossils

AuthorsGarcía Ruiz, Juan Manuel ; Hyde, Stephen T.; Carnerup, A. M.; Christy, A. G.; Van Kranendonk, M. J.; Welham, N. J.
KeywordsCarbonate crystals
Inorganic micron-sized filaments
Noncrystallographic morphologies
Cyanobacterial microfossils
Issue Date14-Nov-2003
PublisherAmerican Association for the Advancement of Science
CitationScience 302(5648): 1194-1197 (2003)
AbstractWe 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.
Description4 pages.-- PMID: 14615534 [PubMed].
Publisher version (URL)http://dx.doi.org/10.1126/science.1090163
URIhttp://hdl.handle.net/10261/9633
DOIhttp://dx.doi.org/10.1126/science.1090163
ISSN0036-8075
E-ISSN1095-9203
Appears in Collections:(IACT) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.