DOAJ Open Access 2025

Popigai and Chicxulub craters: multiple impacts and their associated grabens

J. Klokočník V. Cílek J. Kostelecký J. Kostelecký A. Bezděk

Abstrak

<p>More advanced data (gravity field model EIGEN 6C4 including the GOCE gradiometry data instead of EGM 2008) and a more sophisticated method (using a set of gravity aspects instead of gravity anomalies and the radial second derivative of the disturbing potential only) enable a deeper study of various geological features. Improved techniques were applied to study the impact craters Chicxulub and Popigai. We confirm our results from 2010, extend them, and offer more complicated models, namely by means of the gravity strike angles. Both craters are interpreted to be double or multiple craters. The probable impactor azimuth was from NE (to SW) for Chicxulub and SE (to W) for Popigai. The formation of both the craters seems to be associated with impact-induced tectonics that triggered the development of impact grabens.</p>

Topik & Kata Kunci

Geology Stratigraphy

Penulis (5)

J. Klokočník

V. Cílek

J. Kostelecký

A. Bezděk

Format Sitasi

APA MLA BibTeX

Klokočník, J., Cílek, V., Kostelecký, J., Kostelecký, J., Bezděk, A. (2025). Popigai and Chicxulub craters: multiple impacts and their associated grabens. https://doi.org/10.5194/se-16-119-2025

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.5194/se-16-119-2025
Akses: Open Access ✓