Differential
Deformed Salt-Related Tectonics of the Kuqa Foreland Fold-Thrust Belt,
Tang, Liangjie1, Yixin Yu1,
Chengzao Jia2, Zhijun Jin3 (1) China University of
Petroleum, Beijing, China (2) PetroChina Ltd, China (3) Exploration and
Production Research Institute, SINOPEC, Beijing, China
The differential deformed salt-related
tectonics in the Kuqa foreland fold-thrust belt have been observed by field
geological observation, geographic information system (GIS) analysis, 3-D visualization,
analysis of the salt-related structural styles and restored cross-sections, as
well as estimation of the shortening rates. The differential deformed
salt-related tectonics mainly displays as the structurally differentiation in
various levels, the zonation in transverse, and the segmentation in
longitudinal sections. The boundaries between the structural segments are
mainly strike-slip faults or tear faults revealed by terminal facets,
scratches, steps, misplaced hills and river valleys. The GIS analysis maybe
indicates some characteristic details about structural segmentation. Several
segments of buried residual salt pillows are revealed by 3-D visualization.
Distinct structural styles occur in different segments. The analysis of
balanced cross-sections may estimate the differential amounts and rates of
shortening in different segments. The origin of differential deformed
salt-related tectonics may have a bearing upon the segmentation of Tianshan
mountains, the differential sedimentation and distribution of the salt beds,
the pre-exist faults and basement uplifts as well as paleo-tectonic-ramps.
AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California