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Highly branched isoprenoid thiophenes

Further evidence confirms previous suggestions that (/) C25 highly branched isoprenoid thiophenes are markers for diatoms, (ii) C37 and C38 mid-chain 2,5-dialkylthiophenes are markers for algae of the class Prymnesiophyceae and (iii) C35 hopanoid thiophenes are markers for bacterial reworking. [Pg.482]

Figure 6. Depth profiles of (a) total extractable alkylthiophenes and (b) thiophenes with linear carbon skeletons, (c) thiophenes with isoprenoid carbon skeletons, (d) thiophenes with highly branched isoprenoid carbon skeletons and (e) thiophenes with mid-chain dimethylalkane carbon skeletons relative to the total alkylthiophenes for the Jurf ed Darawish oil shale. Figure 6. Depth profiles of (a) total extractable alkylthiophenes and (b) thiophenes with linear carbon skeletons, (c) thiophenes with isoprenoid carbon skeletons, (d) thiophenes with highly branched isoprenoid carbon skeletons and (e) thiophenes with mid-chain dimethylalkane carbon skeletons relative to the total alkylthiophenes for the Jurf ed Darawish oil shale.
Figure 17. Depth profile of (a) highly branched isoprenoid C25 thiophenes XXII and XXIII and (b) P2C>5 content for the Jurf ed Darawish oil shale. Figure 17. Depth profile of (a) highly branched isoprenoid C25 thiophenes XXII and XXIII and (b) P2C>5 content for the Jurf ed Darawish oil shale.
See other pages where Highly branched isoprenoid thiophenes is mentioned: [Pg.24]    [Pg.405]    [Pg.446]    [Pg.477]    [Pg.613]    [Pg.620]    [Pg.627]    [Pg.627]    [Pg.24]    [Pg.405]    [Pg.446]    [Pg.477]    [Pg.613]    [Pg.620]    [Pg.627]    [Pg.627]    [Pg.458]    [Pg.477]    [Pg.932]    [Pg.488]   
See also in sourсe #XX -- [ Pg.627 ]



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