91°W
23°N
22°N
20°N
21″N
70 km
Mérida
Chicxulub Puerto
Cenozoic basin
Legend
Key Ring Features
(from Gulick et al., 2013)
Topo / Bathy
Country Boundaries
m
Cenotes and Sinkholes
(from Connors et al.,
1996)
Wells
Cross Section
Exterior Ring
and Inner Rim
Peak Ring
Impact breccia
A
A’
Impact breccia
Post-impact sediments
Cretaceous rocks
0
20
Depth (km)
20
40
60
80
100
Distance (km)
120
140
160
180
0
Peak ring
Width of structural uplift
impact melt rocks
Upper
crust
Upper
crust
Upper crust
Mid
crust
Mid
crust
Mid crust
Lower
crust
Yax-1 Y-6
90°W
8 9 °W
8 8 °W
8000
9000
7000
6000
5000
4000
3000
2000
1000
−1000
−2000
−3000
−4000
−5000
−6000
−7000
−8000
−9000
−10000
−11000
0
Marine Sedimentary Basins, Figure 7 Map and cross section of Chicxulub impact crater of latest Cretaceous age in the offshore of
the Yucatan Peninsula in the Gulf of Mexico modified from Gulick et al. (2013). Marine sedimentary basins produced by bolides are
comparable in size to strike-slip basins but smaller than foreland basins.
488
MARINE SEDIMENTARY BASINS