Data orientation analysis
Attitude provides an integrated toolkit for detailed analysis of data orientations. Data can be selected by a combination of categories, depth, stratigraphy (or similarly defined intervals) well and user interaction. Selected data can be saved for later retrieval.
The stereonet functions are very comprehensive and allow simultaneous analysis of multiple wells. This functionality allows systematic warping to be recognised across a number of wells, in the vicinity of salt piercements for example. A variety of displays are available, including polar and cyclographic plots in the upper and lower hemispheres, equal area or equal angle projection, stereonet contouring and strike and dip azimuth rose histograms. Text-based reports of vector means, raw and borehole bias corrected (cf Terzaghi, 1965) counts and eigensystem information are updated automatically for precision analysis of the current data selection. |
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These plots display continuous traces of the separate azimuth and inclination components of selected data, referenced to north and horizontal respectively. Subtle changes not apparent in tadpole plots are often more obvious in such displays, which are crucial to structural interpretation and are also useful in sediment dispersal analysis following correction of the data for structural tilt. |
| Statistical Curvature Analysis Techniques (cf Bengston, 1981) are utillised to determine the plunge direction and axes of curvatures of folds, whether formed due to large-scale tectonism, fault drag or soft sediment deformation. |
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Rotations can be applied to any data and saved for later retrieval. The linked data structure within Attitude links all the orientation displays and therefore automatically applies any rotation to all these displays. |
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