Physics
Scientific paper
Aug 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995natur.376..415h&link_type=abstract
Nature, Volume 376, Issue 6539, pp. 415-417 (1995).
Physics
31
Scientific paper
IT is now widely believed that a large impact occurred on the Earth at the end of the Cretaceous period, and that the buried Chicxulub structure in Yucatán, Mexico, is the resulting crater24. Knowledge of the size and internal structure of the Chicxulub crater is necessary for quantifying the effects of the impact on the Cretaceous environment. Although much information bearing on the crater's structure is available, diameter estimates range from 170 to 300 km (refs 1á¤-7), corresponding to an order of magnitude variation in impact energy. Here we show the diameter of the crater to be ~180 km by examining the horizontal gradient of the Bouguer gravity anomaly over the structure. This size is confirmed by the distribution of karst features in the Yucatan region (mainly water-filled sinkholes, known as cenotes). The coincidence of cenotes and peripheral gravity-gradient maxima suggests that cenote formation is closely related to the presence of slump faults near the crater rim.
Chavez René E.
Connors Martin
Hildebrand Alan Russell
Ortiz-Aleman Carlos
Pilkington Mark
No associations
LandOfFree
Size and structure of the Chicxulub crater revealed by horizontal gravity gradients and cenotes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Size and structure of the Chicxulub crater revealed by horizontal gravity gradients and cenotes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Size and structure of the Chicxulub crater revealed by horizontal gravity gradients and cenotes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1272836