Iturralde crater
Iturralde Crater (also Araona Crater ) is a circular surface formation in the Bolivian part of the Amazon basin . Located in a remote part of the Abel Iturralde province , the formation with a diameter of around eight kilometers was first discovered in 1985 in Landsat satellite images. The circular surface shape is considered by some scientists as a possible meteorite - impact craters interpreted. Since the region of the Iturralde crater is located in the alluvial plains between the Río Manupare and Río Madidi , the regular circular shape must be geologically relatively young, estimates are between 11,000 and 30,000 years old.
In contrast to other geologically young craters, the Iturralde crater is very shallow with only a few meters difference in height between the rim and the center, so that the crater - if it is an impact crater - may have sunk into the soft sediments and so there was none during the impact Edge of appreciable height has formed.
Since the Iturralde crater is difficult to reach, it has only been visited twice by scientific teams, most recently by a NASA team from the Goddard Space Flight Center in September 2002. Both expeditions have no conclusive evidence of the formation of the Iturralde crater. Find craters.
Individual evidence
- ↑ a b NASA Educational Brief ( Memento of the original from September 29, 2006 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved July 10, 2011
- ^ Goddard Scientific Visualization Studio. Retrieved July 10, 2011
- ↑ ICE2002 expedition Accessed July 10, 2011
- ↑ 'Top Story' at Goddard Space Science Center ( Memento of the original from February 24, 2006 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved July 10, 2011
Web links
- NASA Earth Observatory: Topographic Map of the Iturralde Region, Bolivia ( English )
- NASA Earth Observatory: Iturralde Crater, Bolivia ( English )
Coordinates: 12 ° 35 ′ 12 ″ S , 67 ° 40 ′ 30 ″ W.