Projects per year
Abstract
Introduction: The ~66.0 Myr old, ~200 km diameter Chicxulub impact structure marks the K/Pg boundary and is the only terrestrial crater with an unequivocal peak-ring. In 2016, the International Ocean Discovery Program (IODP) and the International Continental Scientific Drilling Program (ICDP) jointly drilled the 1335 m deep Site M0077A into the Chicxulub peak ring offshore the Yucatán Peninsula and successfully recovered a continuous core from 505.7 to 1334.7 mbsf (meters below sea floor). The core is mainly composed of three lithological units: ~110 m of Paleogene sedimentary rocks (post-impact interval), ~130 m of suevite and impact melt rock (upper peak-ring interval), and ~610 m of granitoid basement, intruded by pre-impact dikes and intercalated with suevites and impact melt rocks [1].
This abstract focuses on Core 40R-Section 1 (616.24‒617.68 mbsf), which samples the ~75 cm “transitional unit” between the upper impactites and early Paleogene sediment. This unique interval of the core, marked by siderophile element enrichments and pyrite-rich intervals, is studied here in detail to better constrain the final phases of impact crater formation and determine the fate of the Chicxulub impactor.
This abstract focuses on Core 40R-Section 1 (616.24‒617.68 mbsf), which samples the ~75 cm “transitional unit” between the upper impactites and early Paleogene sediment. This unique interval of the core, marked by siderophile element enrichments and pyrite-rich intervals, is studied here in detail to better constrain the final phases of impact crater formation and determine the fate of the Chicxulub impactor.
Original language | English |
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Title of host publication | Large Meteorite Impacts VI 2019 (LPI Contrib No. 2136) |
Subtitle of host publication | Abstract 5068 |
Place of Publication | Houston, TX |
Publisher | Lunar and Planetary Institute |
Chapter | VI |
Pages | 1-2 |
Number of pages | 2 |
Volume | 6 |
Publication status | Published - 2 Oct 2019 |
Event | Large Meteorite Impacts and Planetary Evolution VI: LMIVI 2019 - FINATEC - University of Brasilia, Brasilia, Brazil Duration: 28 Sept 2019 → 3 Oct 2019 Conference number: VI https://www.sympla.com.br/vi-lmi---large-meteorite-impacts-and-planetary-evolution-vi__576076 |
Conference
Conference | Large Meteorite Impacts and Planetary Evolution VI |
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Abbreviated title | LMIVI 2019 |
Country/Territory | Brazil |
City | Brasilia |
Period | 28/09/19 → 3/10/19 |
Internet address |
Fingerprint
Dive into the research topics of 'THE FINAL SETTLING OF METEORITIC MATTER ON THE PEAK-RING OF THE CHICXULUB IMPACT STRUCTURE AT SITE M0077A OF IODP-ICDP EXPEDITION 364'. Together they form a unique fingerprint.Projects
- 4 Finished
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FOD40: Chicxlub: from crater to mass extinction.
Claeys, P., Karatekin, O. & Godefroit, P.
15/01/17 → 15/10/22
Project: Fundamental
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FWOAL832: Chicxulub IODP-ICDP deep drilling: from cratering to mass extinction
1/01/17 → 31/12/20
Project: Fundamental
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OZR2961: Scientific rejuvenation in impact cratering and dinosaur extinction - VUB onderzoekscontingent Sabbatical leaves 2016 (call 2015)
1/01/16 → 31/12/22
Project: Fundamental