ACLAS: A new automatic method of defining potential field lineaments using coherency analysis

• DOI: 10.1190/segam2012-1254.1
• Publication Date: 2013-04-15T23:47:27Z
• Authors: Lorenzo Cascone; Simon Campbell; Chris Green; Ahmed Salem; Derek Fairhead
• Keywords: Lineament; Maxima and minima; Data set; Potential field; Maxima

Geological features, such as faults, dikes and contacts, appear lineaments in potential field data. Here we describe a new approach to automatically analyze sets of lineaments, (Total Horizontal Derivative maxima zero contours Tilt), derived from the same gravity data set. Coherency analysis – ACLAS generates set consistent which more accurately identify locations geological features before determining their depth, density contrast direction throw. The automated method provides "non-subjective" solution identifying portions Tilt that define structures. This improves accuracy edge/contact efficiency structural mapping, especially for large sets. could also be applied combined (gravity magnetic)