Landsat Based Lineament Analysis East Texas Basin and Structural History of the Sabine Uplift Area East Texas and North Louisiana

Date

1987

Authors

Baumgardner, Jr., Robert W.
Jackson, M. P. A.

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Abstract

The relationship between subsurface structure and lineaments was examined. More than 2,200 lineaments were mapped from 1:250,000-scale Landsat images. Vector sums of greater-than-average values of length-weighted frequency define significant peaks of lineament orientation. For all lineaments, significant peaks occur at 325 degrees and 21 degrees. The northwest peak parallels mean azimuth of borehole elongations in Cotton Valley sandstone wells throughout East Texas. Within the salt structure province of the East Texas Basin, lineament azimuth is not significantly different from salt structure azimuth. Lineament density delineates major fault zones. These results suggest that lineaments and subsurface structures result from like-oriented stresses. Identification of the timing, extent, and orientation of arching episodes in the Sabine Uplift area is important in developing a structural history of the area. Estimation of movement on the Sabine Uplift was made from isopach maps of five Lower Cretaceous units. The isopach maps show that the Sabine Uplift was not a horst during the Late Jurassic and Early Cretaceous but part of a large basinal area. Timing and magnitude of arching episodes on the uplift in the Mid-Cretaceous and Early Tertiary indicate that the Sabine Uplift may have been produced by northeast-directed tectonic events in the Mexican Cordillera.

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