The formation of peak rings in large impact craters

  title={The formation of peak rings in large impact craters},
  author={Joanna V. Morgan and Sean P. S. Gulick and Timothy J. Bralower and Elise Chenot and Gail L. Christeson and Philippe Claeys and Charles Cockell and Gareth S. Collins and Marco J. L. Coolen and Ludovic Ferri{\`e}re and Catalina Gebhardt and Kazuhisa Goto and Heather Jones and David A. Kring and E. Le Ber and Johanna Lofi and Xiao Long and Christopher M. Lowery and Claire L. Mellett and Rub{\'e}n Ocampo-Torres and Gordon R. Osinski and Ligia P{\'e}rez‐Cruz and Annemarie E. Pickersgill and Michael H. Poelchau and Auriol S. P. Rae and Cornelia Rasmussen and Mario Rebolledo-Vieyra and Ulrich Riller and Honami Sato and Douglas R. Schmitt and Jan Smit and Sonia M. Tikoo and Naotaka Tomioka and Jaime Urrutia‐Fucugauchi and Michael T. Whalen and Axel Wittmann and Kosei E. Yamaguchi and W. Zylberman},
  pages={878 - 882}
Drilling into Chicxulub's formation The Chicxulub impact crater, known for its link to the demise of the dinosaurs, also provides an opportunity to study rocks from a large impact structure. Large impact craters have “peak rings” that define a complex crater morphology. Morgan et al. looked at rocks from a drilling expedition through the peak rings of the Chicxulub impact crater (see the Perspective by Barton). The drill cores have features consistent with a model that postulates that a single… 

Revealing the dynamics of a large impact

Results from a drilling expedition into the Chicxulub crater are presented that reveal how the formation of peak rings in large impact craters occurs, and numerical simulations of the impact model the time scale of events.

Seismic attribute analysis of Chicxulub impact crater

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The first day of the Cenozoic

High-resolution section from the Chicxulub peak ring provides insight into the impact environmental effects, including charcoal as evidence for impact-induced wildfires and a paucity of sulfur-rich evaporites from the target supporting rapid global cooling and darkness as extinction mechanisms.

Rock core from dinosaur-killing impact reveals how enormous craters form

The core confirms the 'dynamic collapse' model of cosmic impacts, in which the asteroid punches a deep hole in the crust, causing the rock to flow like a liquid and spurt skyward, then falls back to Earth, splattering around in a peak ring.

Expedition 364 summary

The Chicxulub impact crater, on the Yucatán Peninsula of México, is unique. It is the only known terrestrial impact structure that has been directly linked to a mass extinction event and the only

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The recovered core shows the Chicxulub crater hosted a spatially extensive hydrothermal system that chemically and mineralogically modified ~1.4 × 105 km3 of Earth’s crust, a volume more than nine times that of the Yellowstone Caldera system.

Very large bolide impacts:insight from melt products and element behaviour in the crater fill

Large (>100 km) impact events have shaped the surfaces of terrestrial bodies in the inner Solar System. They have fundamentally altered the Earth’s geochemistry and may even have contributed to




Geophysical data indicate that the 65.5 million years ago Chicxulub impact structure is a multi‐ring basin, with three sets of semicontinuous, arcuate ring faults and a topographic peak ring (PR).

Chicxulub central crater structure: Initial results from physical property measurements and combined velocity and gravity modeling

Abstract The Chicxulub crater in Mexico is a nearly pristine example of a large impact crater. Its slow burial has left the central impact basin intact, within which there is an apparently uneroded

Full waveform tomographic images of the peak ring at the Chicxulub impact crater

Peak rings are a feature of large impact craters on the terrestrial planets and are generally believed to be formed from deeply buried rocks that are uplifted during crater formation. The precise

Mapping Chicxulub crater structure with gravity and seismic reflection data

Abstract Aside from its significance in establishing the impact-mass extinction paradigm, the Chicxulub crater will probably come to exemplify the structure of large complex craters. Much of

Volumetric analysis of complex lunar craters: Implications for basin ring formation

The transition in hypervelocity impact structures from complex craters to basins is defined by a transition in uplifted central features from peaks to peak rings. Volumetric and morphologic analyses

Deep crustal structure of the Chicxulub impact crater

We present the results of a wide-angle seismic survey conducted over the Chicxulub impact crater. Profile Chicx-A/A1 is a chord across the offshore portion of the crater, and Chicx-B/F is an

Peak-ring structure and kinematics from a multi-disciplinary study of the Schrödinger impact basin

The Schrödinger basin on the lunar farside is ∼320 km in diameter and the best-preserved peak-ring basin of its size in the Earth–Moon system. Here we present spectral and photogeologic analyses of

Scaling impact melting and crater dimensions: Implications for the lunar cratering record

Abstract— The dimensions of large craters formed by impact are controlled to a large extent by gravity, whereas the volume of impact melt created during the same event is essentially independent of