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- W2344930228 abstract "Abstract Fossil microbes are generally preserved by authigenic minerals, including silica, apatite, iron minerals, clays, and carbonates. An alternative mode of preservation by entombment in calcite, without replacement, has been identified in carbonate cave pool microbialites that were etched and examined in the scanning electron microscope (SEM). Features identified include filaments, threads, and films that show excess carbon in energy dispersive X-ray (EDX) analyses, suggesting preservation of organic matter. Filaments are single smooth or reticulated strands with curving string-like morphology, often hollow, and with a uniform diameter of 0.5 to 1.0 μm. Threads, in contrast, are variable thickness, from several microns down to 0.1 μm, always solid, and commonly branch. Films are thin (< 1 μm) drapes associated with threads. Filaments are interpreted as microbial filaments, while threads and films are interpreted as preserved extracellular polymeric substance (EPS). In addition, microbial filaments and EPS are only revealed via acid etching, suggesting preservation of organic material by entombment, not by replacement with calcite. To determine whether entombed microbes are a common feature of carbonate microbialites that form in different environmental settings, samples of hot spring travertine, caliche soil, and reef microbialite were examined. Whereas the travertine samples were barren, entombed EPS was found in the caliche soil and the reef microbialite; the latter also contained a few entombed filaments. In addition, entombed microbial material has been reported from carbonate cold seep deposits. Such findings indicate that entombment of microbes and EPS in carbonates is not restricted to cave settings, but is more widespread than previously reported. Possible causes for the lack of preservation in travertines include rapid degradation of microbial material either by sunlight due to photolytic degradation, aerobic microbial degradation, detritivore consumption, or elevated temperatures. Rapid carbonate precipitation is ruled out as, somewhat surprisingly, preservation is better in slower growing cave carbonates than in rapidly growing travertines. Potential long-term preservation of organic material entombed in carbonate has implications for the characterization of fossil microbial communities using molecular biomarkers and the search for life on other planets." @default.
- W2344930228 created "2016-06-24" @default.
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- W2344930228 date "2016-04-01" @default.
- W2344930228 modified "2023-09-27" @default.
- W2344930228 title "PRESERVATION OF FOSSIL MICROBES AND BIOFILM IN CAVE POOL CARBONATES AND COMPARISON TO OTHER MICROBIAL CARBONATE ENVIRONMENTS" @default.
- W2344930228 cites W1501748607 @default.
- W2344930228 cites W1510626250 @default.
- W2344930228 cites W1623728788 @default.
- W2344930228 cites W1692629830 @default.
- W2344930228 cites W1795854071 @default.
- W2344930228 cites W1964851863 @default.
- W2344930228 cites W1966012718 @default.
- W2344930228 cites W1966976771 @default.
- W2344930228 cites W1968770309 @default.
- W2344930228 cites W1969628986 @default.
- W2344930228 cites W1969820811 @default.
- W2344930228 cites W1970038919 @default.
- W2344930228 cites W1972954862 @default.
- W2344930228 cites W1977829117 @default.
- W2344930228 cites W1978920794 @default.
- W2344930228 cites W1990484740 @default.
- W2344930228 cites W1993995366 @default.
- W2344930228 cites W1995534373 @default.
- W2344930228 cites W1997540506 @default.
- W2344930228 cites W2003156398 @default.
- W2344930228 cites W2005909193 @default.
- W2344930228 cites W2008378073 @default.
- W2344930228 cites W2009186438 @default.
- W2344930228 cites W2012277629 @default.
- W2344930228 cites W2014983123 @default.
- W2344930228 cites W2016049452 @default.
- W2344930228 cites W2016475940 @default.
- W2344930228 cites W2017921774 @default.
- W2344930228 cites W2029585976 @default.
- W2344930228 cites W2032765543 @default.
- W2344930228 cites W2035086898 @default.
- W2344930228 cites W2036384349 @default.
- W2344930228 cites W2039172699 @default.
- W2344930228 cites W2041627908 @default.
- W2344930228 cites W2047596105 @default.
- W2344930228 cites W2047689699 @default.
- W2344930228 cites W2055958596 @default.
- W2344930228 cites W2056880513 @default.
- W2344930228 cites W2064486248 @default.
- W2344930228 cites W2075441030 @default.
- W2344930228 cites W2079029266 @default.
- W2344930228 cites W2081100247 @default.
- W2344930228 cites W2081365182 @default.
- W2344930228 cites W2081747143 @default.
- W2344930228 cites W2082681775 @default.
- W2344930228 cites W2086030050 @default.
- W2344930228 cites W2091679116 @default.
- W2344930228 cites W2092761152 @default.
- W2344930228 cites W2096522903 @default.
- W2344930228 cites W2098492523 @default.
- W2344930228 cites W2100102455 @default.
- W2344930228 cites W2100184350 @default.
- W2344930228 cites W2102537001 @default.
- W2344930228 cites W2106662759 @default.
- W2344930228 cites W2118282237 @default.
- W2344930228 cites W2119246842 @default.
- W2344930228 cites W2121255959 @default.
- W2344930228 cites W2121332827 @default.
- W2344930228 cites W2125375419 @default.
- W2344930228 cites W2131911948 @default.
- W2344930228 cites W2132959526 @default.
- W2344930228 cites W2134882270 @default.
- W2344930228 cites W2140167721 @default.
- W2344930228 cites W2140249999 @default.
- W2344930228 cites W2145571621 @default.
- W2344930228 cites W2148161917 @default.
- W2344930228 cites W2148938350 @default.
- W2344930228 cites W2150266069 @default.
- W2344930228 cites W2150772200 @default.
- W2344930228 cites W2150855465 @default.
- W2344930228 cites W2151291114 @default.
- W2344930228 cites W2153139992 @default.
- W2344930228 cites W2154283763 @default.
- W2344930228 cites W2174718931 @default.
- W2344930228 cites W2226860537 @default.
- W2344930228 cites W2334769154 @default.
- W2344930228 cites W2951192434 @default.
- W2344930228 cites W4211114967 @default.
- W2344930228 cites W4250843228 @default.
- W2344930228 cites W4255817930 @default.
- W2344930228 cites W4293862796 @default.
- W2344930228 cites W4315695260 @default.
- W2344930228 doi "https://doi.org/10.2110/palo.2015.033" @default.
- W2344930228 hasPublicationYear "2016" @default.
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