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Sunday, 11 September 2011

Dinosaur Bone-Bearing K-P Tsunami Deposits, La Popa Basin, Mexico


Dinosaur Bone-Bearing K-P Tsunami Deposits, La Popa Basin, Mexico


Dear List Members,

A recent paper has an interesting description and
discussion of K-P tsunami deposits that contain 
dinosaur bones and impact ejecta. These deposits 
are part of the Delgado Sandstone Member, which 
is exposed in the La Popa Basin in north-eastern Mexico.

The paper is:

Schulte, P., J. Smit, A. Deutsch, T. Salge, A. Friese, and K. 
Beichel, 2011, Tsunami backwash deposits with Chicxulub 
impact ejecta and dinosaur remains from the Cretaceous–
Palaeogene boundary in the La Popa Basin, Mexico. Article 
first published online: 8 AUG 2011
DOI: 10.1111/j.1365-3091.2011.01274.x
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3091.2011.01274.x/abstract

A related paper is:

Lawton, T. F., K. W. Shipley, J. L. Aschoff, K. A. Giles and
F. J. Vega, 2005, Basinward transport of Chicxulub 
ejecta by tsunami-induced backflow, La Popa basin, 
northeastern Mexico, and its implications for 
distribution of impact-related deposits flanking the 
Gulf of Mexico. Geology. vol. 33, no. 2, pp. 81-84.    
http://geology.gsapubs.org/content/33/2/81.abstract

and

Lawton, T. F., F. J. Vega, K. A. Giles, and C. Rosales-
Domínguez, 2001, Stratigraphy and origin of the La Popa 
Basin, Nuevo León and Coahuila, Mexico, in C. Bartolini, 
R. T. Buffler, and A. Cantú-Chapa, eds., pp. 219-240, The 
western Gulf of Mexico Basin: Tectonics, sedimentary 
basins, and petroleum systems. Memoir no. 75, American
Association of Petroleum Geologists, Tulsa, Oklahoma.

Yours,

Paul H.

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