Figure 10From: The nature and fate of natural resins in the geosphere. Part X.† Structural characteristics of the macromolecular constituents of modern Dammar resin and Class II ambers2D 13C-1H NMR spectra for modern Dammar polymer. (a) and (c) HMQC and (b) and (d) HMBC. Resonances due to the secondary olefinic structures are joined by dashed lines. Click on the image or here to access a larger view.Back to article page