02 Oct '11, 10pm

Bigach Impact Crater, Kazakhstan [image] #NASA

Some meteor impact craters, like Barringer Crater in Arizona, are easily recognizable due to well-preserved forms and features on the landscape. Other impact structures, such as Bigach Impact Crater in northeastern Kazakhstan, are harder to recognize due to their age, modification by geologic processes, or even human alteration of the landscape. At approximately five million years old, Bigach is a relatively young geologic feature. However, active tectonic processes in the region have caused movement of parts of the structure along faults, leading to a somewhat angular appearance (image center). The roughly circular rim of the 8-kilometer (diameter) structure is still discernable around the relatively flat interior. In addition to modification by faulting and erosion, the interior of the impact structure has also been used for agricultural activities, as indicated by the p...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=52351&s...

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Bigach Impact Crater, Kazakhstan: Bigach Impact...

earthobservatory.nasa.gov 02 Oct '11, 10pm

Some meteor impact craters, like Barringer Crater in Arizona, are easily recognizable due to well-preserved forms and feat...

NASA Earth Observato Bigach Impact Crater, Kaza...

earthobservatory.nasa.gov 02 Oct '11, 10pm

Some meteor impact craters, like Barringer Crater in Arizona, are easily recognizable due to well-preserved forms and feat...

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