Ocean Drilling Perspectives on Meteorite Impacts

Lowery, Christopher M.; Morgan, J. V.; Gulick, S. P. S.; Bralower, Timothy J.; Christeson, G. L.; Scientists, Expedition

doi:10.5670/oceanog.2019.133

Cited by 7 publications

(3 citation statements)

References 153 publications

(223 reference statements)

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“…Now that we are able to obtain complete, undisturbed sections of marine sedimentary records from nearly all ocean areas, we are well on the way to understanding the broad outlines of ocean history for at least the last 100 million years (Zachos et al, 2001). In addition, we also are able to delve into the details of how sudden cataclysmic changes (e.g., the Cretaceous-Paleogene bolide impact; see Lowery et al, 2019, in this issue) as well short-term cyclic changes (e.g., the multiple Eocene hyperthermals) affect the ocean environment and, in turn, global climate. There are still key regions of the ocean basins that have yet to be adequately sampled and studied.…”

Section: Looking Into the Future And Gaps In Our Knowledgementioning

confidence: 99%

Reading All the Pages in the Book on Climate History

Moore¹,

Backman²

2019

Oceanog

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Section: Looking Into the Future And Gaps In Our Knowledgementioning

confidence: 99%

Reading All the Pages in the Book on Climate History

Moore¹,

Backman²

2019

Oceanog

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“…In 2016, ECORD conducted IODP-ICDP Expedition 364, Drilling the K-Pg Chicxulub Crater, as an MSP operation aboard Liftboat Myrtle (see photo in Spotlight 11) in <20 m water depth. The liftboat was outfitted with an ICDPprovided DOSECC drilling rig to drill into the peak ring of the Chicxulub impact structure (Morgan et al, 2017;Lowery et al, 2019, in this issue). The resultant 835 m of core represented the first offshore drilling into the crater and included basement rocks that were uplifted 8-10 km during crater formation (Morgan et al, 2016; Figure 1).…”

Section: Chicxulub Cratermentioning

confidence: 99%

Scientific Drilling Across the Shoreline

Gulick¹,

Miller²,

Keleman³

et al. 2019

Oceanog

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“…Therefore, 'Patterson's Gap' extends across a crucial time in Earth's history, namely the last of the 'big five' mass extinctions at the Cretaceous-Paleogene boundary (K/Pg extinction event). The K/Pg extinction event is generally believed to have been caused by the Chicxulub asteroid impact on Yucatán Peninsula at about 66 Ma, the largest documented extraterrestrial impact on our planet (e.g., Schulte et al, 2010;Lowery et al, 2019;Gulick et al, 2019). The impact is thought to have triggered a series of events of different duration ranging from few hours (mega-earthquake), to days (mega-tsunami, wild fires) to years, decades and periods of thousands of years (post-impact darkness, post-impact winter, disturbances of chlorophyll synthesis, partial collapse of food chains, acidic rain and ocean acidification, and reduction of biogenic carbonate sedimentation) (see discussion in Schwarzhans & Stringer, 2020, and references therein).…”

Section: Introductionmentioning

confidence: 99%

The diversity of teleost fishes during the terminal Cretaceous and the consequences of the K/Pg boundary extinction event

Schwarzhans,

Carnevale,

Stringer

2024

Netherlands Journal of Geosciences

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The Late Cretaceous was a time of blossoming teleost diversification that came to a sudden restriction and partial termination during the extinction event at the Cretaceous–Paleogene (K/Pg) boundary. Among the dominant and diverse Late Cretaceous teleost groups prior to the K/Pg boundary event were certain pelagic Aulopiformes (e.g., Ichthyotringoidei and Enchodontoidei) and a large variety of basal Acanthomorpha whose relationships are difficult to determine. The skeletal record diminishes during the late Campanian and is low in the Maastrichtian and Paleocene, constituting the so-called ‘Patterson’s Gap’. Recent studies of fossil otoliths, however, have significantly increased the number of taxa recognised for this time inerval, but most of the putative extinct forms lack adequate calibration with otoliths found in situ in articulated skeletons. However, the otolith assemblages do confirm the presence of great morphological diversity among Aulopiformes and Acanthomorpha incertae sedis that became extinct at the K/Pg boundary. In the present review, we elucidate the effect of the K/Pg boundary from an otolith perspective and categorise extinct lineages and survivors. It is interesting to recognise that several of the surviving lineages are represented by groups that probably originated during the Late Cretaceous but were not particularly common up to the K/Pg boundary and began to expand rapidly and diversify during the early Paleogene. Such lineages probably took advantage to populate void ecospace that may have opened following the extirpation of previously dominant lineages. During the early Paleogene, the otolith record shows that the Ophidiiformes and perciforms s. lat. were the ones that diversified the most rapidly and became the most abundant, and in certain areas associated with the Gadiformes.

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Ocean Drilling Perspectives on Meteorite Impacts

Cited by 7 publications

References 153 publications

Reading All the Pages in the Book on Climate History

Reading All the Pages in the Book on Climate History

Scientific Drilling Across the Shoreline

The diversity of teleost fishes during the terminal Cretaceous and the consequences of the K/Pg boundary extinction event

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