Visualize and interpret the geometry, heterogeneity and lateral ...

4.3.2 Channel body 16 (Blåfjellet South)Channel body 16 is located, only a few hundred meters south of Channel body 3, but issituated higher up in the stratigraphy. The thickness and width of the channel body is difficultto estimate since the body is located on the western side of Blåfjellet, an area where thePhotoModeler-model is not working optimally. The channel body is mostly dark brown toblack coloured with some lighter coloured sediment in between. A dark layer found at a lowerstratigraphical level, is found on both sides of the channel body. Where the actual channelbody is situated, this darker layer is missing, most likely eroded away by the respectivechannel. It is also possible to see that parts of the channel body do not have dipping layers(Marked with red in Figure 4.34D). On the photo, the pinch outs seem to consist of finergrainedmaterial (Figure 4.34C).The Hopen member is most likely situated towards the top of the mountain, as shown inFigure 4.34B. Due to problems with the orientation of the PhotoModeler-model in this area,the distance from the Hopen member to Channel body 16 is difficult to estimate.(1) DiscussionThe depositional environment is difficult to interpret for this channel body, partly becausethere is no log associated to it, but also because the channel body does not resemble any of theother channel bodies described. Even though it is not possible to measure the distance to thebase of Hopen member, one can to a high degree of certainty say that the distance is no morethan 100 meters, based on what is seen on photos (Figure 4.34B). As will be discussed furtherin Chapter 5, this area is dominated by fluvial deposition on the delta plain, which mightimply that this is a channel body with fluvial characteristics.One can also argue that the area marked with red in Figure 4.34D, is the infill of the channelbody, perhaps represented by a mud-plug, as described in subsection 4.3.1.Another feature found on this channel body is that the pinch outs seem to consist of finergrainedmaterial. This might have nothing to do with the sediments deposited at thisstratigraphical level, but instead just caused by covering scree.85