TY  - RPRT
TI  - Soot and palynologic analysis of Manson impact-related strata (Upper Cretaceous) of Iowa and South Dakota, USA
AU  - D.J. Varricchio
AU  - R.F. Raven
AU  - W.S. Wolbach
AU  - W.C. Elsik
AU  - B.J. Witzke
PY  - 2009
DO  - 10.1016/j.cretres.2008.06.005
UR  - https://pubs.usgs.gov/publication/70033009
ID  - 70033009
ER  -