Mismatch of geophysical datasets in distal rifted margin studies |
| |
| Authors: | Gwenn Peron‐Pinvidic Per Terje Osmundsen Jörg Ebbing |
| |
| Affiliation: | 1. Geological Survey of Norway, Trondheim, Norway;2. Department of Geosciences, Christian‐Albrechts‐Universit?t Kiel, Kiel, Germany |
| |
| Abstract: | The interpretation protocols for defining offshore rifted margin architecture normally include seismic‐reflection analysis supplemented by refraction and/or potential field modelling to help constrain sedimentary, basement and Moho geometries at depth and/or the presence of magmatic material. Interpretation of modern high‐resolution long‐offset reflection profiles shows that significant mismatches may arise between the structural observations made from these data and the common translation of density, magnetic or velocity values into specific rock types made by geophysical models. We illustrate this problem with three examples from the Mid‐Norwegian rifted system, and discuss the implications with respect to the geological interpretation. |
| |
| Keywords: | |
|
|
