Geochemistry of sediments from the Cretaceous-Tertiary boundary
| Cobertura |
MEDIAN LATITUDE: 49.847625 * MEDIAN LONGITUDE: 53.939750 * SOUTH-BOUND LATITUDE: 33.820500 * WEST-BOUND LONGITUDE: 12.280000 * NORTH-BOUND LATITUDE: 55.190000 * EAST-BOUND LONGITUDE: 178.919000 * DATE/TIME START: 1978-08-23T00:00:00 * DATE/TIME END: 1978-08-23T00:00:00 |
|---|---|
| Data(s) |
10/10/1980
|
| Resumo |
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. |
| Formato |
application/zip, 2 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.770358 doi:10.1594/PANGAEA.770358 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Kyte, Frank T; Zhou, Zhiming; Wasson, John T (1980): Siderophile-enriched sediments from the Cretaceous-Tertiary boundary. Nature, 288(5792), 651-656, doi:10.1038/288651a0 |
| Palavras-Chave | #62-465A; Antimony; Arsenic; As; Au; based on loss on leaching with 1M HCl; based on the assumption that all Ca is present as CaCO3; Br; Bromine; Ca2+; CaCO3; Calcium; Calcium carbonate; Ce; Cerium; Chromium; Co; Cobalt; Cr; Deep Sea Drilling Project; Distance; DISTANCE; DRILL; Drilling/drill rig; DSDP; Dy; Dysprosium; Eu; Europium; Event; Fe; Ge; Germanium; Glomar Challenger; Gold; HAND; Instrumental neutron activation analysis (INAA) (Reimann et al., 1998); Ir; Iridium; Iron; K; La; Label; Lanthanum; Leg62; Lu; Lutetium; Manganese; Mn; Na; Nd; Neodymium; Ni; Nickel; North Pacific/CONT RISE; ORDINAL NUMBER; Ord No; Os; Osmium; Palladium; Pd; Platinum; Potassium; Pt; Re; Rhenium; Samarium; Sample code/label; Sampling by hand; Sb; Sc; Scandium; Se; Selenium; Sm; Sodium; Stevns-Klint; Tb; Terbium; Th; Thorium; Yb; Ytterbium; Zinc; Zn |
| Tipo |
Dataset |
