2001
DOI: 10.1016/s0146-6380(01)00101-2
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Organic geochemical and stable carbon isotopic investigation of coals formed in low-lying and raised mires within the Eastern Alps (Austria)

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Cited by 56 publications
(21 citation statements)
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“…This pattern is characteristic for the presence of bacteria in the swamp (Ourisson et al, 1979) and for an oxic-type environment (Philp and Mansuy, 1997). The hopanes / steranes ratio allows estimation of the relative abundance of bacteria versus algae and terrestrial higher plants (Boreham et al, 1994;Bechtel et al, 2001). This ratio is high in our samples from coals, marine claystones and deltaic siltstones, suggesting high bacterial activity or best preservation in these environments.…”
Section: Paleoenvironmental Assessmentmentioning
confidence: 72%
“…This pattern is characteristic for the presence of bacteria in the swamp (Ourisson et al, 1979) and for an oxic-type environment (Philp and Mansuy, 1997). The hopanes / steranes ratio allows estimation of the relative abundance of bacteria versus algae and terrestrial higher plants (Boreham et al, 1994;Bechtel et al, 2001). This ratio is high in our samples from coals, marine claystones and deltaic siltstones, suggesting high bacterial activity or best preservation in these environments.…”
Section: Paleoenvironmental Assessmentmentioning
confidence: 72%
“…For example, Gröcke (1998) suggested that wood diagenesis in different lithological contexts would lead to a negative correlation of δ 13 C with C, whereas Schleser et al (1999) suggested that in more advanced stages of thermal degradation, the initial depletion of 13 C is overprinted by the loss of certain compounds (e.g., volatiles). During microbial activity, thermal degradation and coalification δ 13 C is expected to increase (Teichmüller and Teichmüller, 1979;Bechtel et al, 2001). In addition, Brodie et al (2011) demonstrated that different acid pre-treatments, residual inorganic carbon contents and the organic matter state and composition can affect the C/N, δ 13 C, and δ 15 N values of organic matter.…”
Section: Elemental and Isotopic Datamentioning
confidence: 99%
“…The increase of δ 15 N in wood has been associated to N fertilization and/ or changes in drainage patterns, which are known to increase soil N dynamics and thereby increase soil, leaf, and wood δ 15 N. In addition, diagenesis and coalification also have the capability to change the original δ 15 N of fossil wood. During the initial stages of wood decomposition, the processes of mineralization (sensu Kanduč et al, 2005) and anaerobic bacteria decomposition following fungi aerobic activity are expected to occur (e.g., Bechtel et al, 2001Bechtel et al, , 2003, leaving the residual organic matter depleted in 14 N (Rimmer et al, 2006). The isotopic composition is then expected to remain stable until the onset of the bituminous stage (Boudou et al, 1984).…”
Section: Elemental and Isotopic Datamentioning
confidence: 99%
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“…Ongoing studies using biomarkers and C-isotopes and their combination with petrogra- Klaus (1954), Pohl (1970), Meller (1998), Kolcon and Sachsenhofer (1999), Bechtel et al (2002a,b) phy (and palynology) yield additional information on the coal-forming environments and the early diagenetic fate of the biomass (e.g. Bechtel et al, 2001bBechtel et al, , 2002aBechtel et al, ,b, 2003. A combination of paleontology, petrology, and geochemistry was also used to reconstruct the depositional environment of Upper Cretaceous jet (Kollmann and Sachsenhofer, 1998;Bechtel et al, 2001a) (Table 1).…”
mentioning
confidence: 99%