Chicxulub impact tsunami megaripples in the subsurface of Louisiana: Imaged in petroleum industry seismic data

@article{Kinsland2021ChicxulubIT,
  title={Chicxulub impact tsunami megaripples in the subsurface of Louisiana: Imaged in petroleum industry seismic data},
  author={Gary L. Kinsland and Kaare Egedahl and Martell A. Strong and Robert M. Ivy},
  journal={Earth and Planetary Science Letters},
  year={2021},
  volume={570},
  pages={117063}
}

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Features resembling large-scale dunes with average trough-to-trough length of 600 m (1970 ft) and average trough-to-peak height 16 m (52 ft) exist on a seismic horizon at or near the
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TLDR
High-resolution chronology of the immediate aftereffects of the Chicxulub impact event in the Western Interior is presented, and an impact-triggered onshore mix of marine and terrestrial sedimentation is reported—potentially a significant advancement for eventually resolving both the complex dynamics of debris ejection and the full nature and extent of biotic disruptions that took place in the first moments postimpact.
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Hydrocarbon exploration in the last decade has yielded sufficient data to evaluate the Gulf of Mexico basin response to the Chicxulub asteroid impact. Given its passive marine setting and proximity
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TLDR
Records of the global stratigraphy across this boundary are synthesized to assess the proposed causes of the Cretaceous-Paleogene boundary and conclude that the Chicxulub impact triggered the mass extinction.
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A distinctive mixture of reworked microfossils, impact-derived materials, and lithic fragments occurs in sediments at the Cretaceous-Tertiary boundary in the basinal Gulf of Mexico and Caribbean. We
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