Unknown
PANGAEA
In:
Supplement to: Kyte, Frank T; Zhou, Zhiming; Wasson, John T (1980): Siderophile-enriched sediments from the Cretaceous-Tertiary boundary. Nature, 288(5792), 651-656, https://doi.org/10.1038/288651a0
Publication Date:
2023-06-27
Description:
Siderophilic element concentrations are high in sediments from the Cretaceous-Tertiary boundary. An extraterrestrial source is indicated. Concentrations are too high to be understood in terms of the impact of a chondritic asteroid. Either the projectile was a metal-sulphide core or the infalling material (probably weak cometary matter) was slowed down during atmospheric passage.
Keywords:
62-465A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; HAND; Leg62; North Pacific/CONT RISE; Sampling by hand; Stevns-Klint
Type:
Dataset
Format:
application/zip, 2 datasets
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