@article{239, author = {Gerta Keller and Wolfgang Stinnesbeck}, title = {Near-K/T age of clastic deposits from Texas to Brazil: impact, volcanism and/or sea-level lowstand?}, abstract = {
Near-K/T boundary clastic deposits from Texas, Mexico, Haiti, Guatemala and Brazil, often described as impact-generated tsunami deposits, are stratigraphically below well-defined K/T boundary horizons and appear not to be causally related to the K/T boundary event. Stratigraphic evidence indicates that their deposition began during the last 170{\textendash}200 kyr of the Maastrichtian, coincident with a major eustatic sea-level lowstand that lowered sea level by as much as 70{\textendash}100 m. Clastic deposition ended a few tens of thousands of years before the K/T boundary during a rapidly rising sea level. The presence of glass in clastic deposits in Haiti, northeastern Mexico and Yucatan suggests that the sea-level lowstand coincided with a time of major volcanism or pre-K/T boundary bolide impact.\ PDF
}, year = {1996}, journal = {Terra Nova}, volume = {8}, pages = {277{\textendash}285}, month = {may}, url = {https://doi.org/10.1111/j.1365-3121.1996.tb00757.x}, doi = {10.1111/j.1365-3121.1996.tb00757.x}, language = {eng}, }