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Line 130:
Line 130: − + − ! May indicate an origin of … − + − − + − − + − − + − − + − − + − − + − − + − − + − − + − − + − − + − − + − − + −
Organic compounds: environmental indicators (view source)
Revision as of 20:12, 14 October 2014
, 20:12, 14 October 2014→Summary of application of GC/MS to correlation studies
{| class = "wikitable"
{| class = "wikitable"
|-
|-
! This class of compound …
! This class of compound … || May indicate an origin of …
|-
|-
| C<sub>27</sub> steranes
| C<sub>27</sub> steranes || Marine organisms (minor amounts occur in nonmarine organisms)
| Marine organisms (minor amounts occur in nonmarine organisms)
|-
|-
| C<sub>29</sub> steranes
| C<sub>29</sub> steranes || Marine or nonmarine organic matter
| Marine or nonmarine organic matter
|-
|-
| C<sub>30</sub> steranes
| C<sub>30</sub> steranes || Marine or lacustrine organisms
| Marine or lacustrine organisms
|-
|-
| Diasteranes
| Diasteranes || Clastic environment
| Clastic environment
|-
|-
| Hopanes
| Hopanes || Bacteria
| Bacteria
|-
|-
| Gammacerane
| Gammacerane || Abnormal salinites
| Abnormal salinites
|-
|-
| Oleanane
| Oleanane || Late Cretaceous or Tertiary terrestrial flowering plants
| Late Cretaceous or Tertiary terrestrial flowering plants
|-
|-
| Bicadinanes
| Bicadinanes || Tertiary terrestrial plants
| Tertiary terrestrial plants
|-
|-
| C<sub>z</sub> and C<sub>x</sub> triterpanes
| C<sub>z</sub> and C<sub>x</sub> triterpanes || Terrestrial organic matter or environment
| Terrestrial organic matter or environment
|-
|-
| 28,30-bisnorhopane
| 28,30-bisnorhopane || Microbes
| Microbes
|-
|-
| Tricyclic terpanes
| Tricyclic terpanes || Bacteria or ''Tasmanites''
| Bacteria or ''Tasmanites''
|-
|-
| Diterpanes
| Diterpanes || Terrestrial resins or microbes
| Terrestrial resins or microbes
|-
|-
| Sesquiterpanes
| Sesquiterpanes || Terrestrial plant resins
| Terrestrial plant resins
|-
|-
| Carotanes
| Carotanes || Anoxic marine or lacustrine environment
| Anoxic marine or lacustrine environment
|}
|}