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The acraman impact structure: estimation of the diameter by the ejecta layer thickness
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gurov, E. P. |
| Copyright Year | 1993 |
| Description | The big role of gigantic craters formation in geological history of the Earth was established by the example of the K/T boundary event. The discovery of the iridium anomaly in the sedimentary rocks of Vendian in the western part of Ukrainian shield allows to suppose its origin in connection with the great impact of that time. The only big impact structure of that age is the Acraman Crater in south-eastern part of Australia. The Acraman Crater is presented by deeply eroded structure, original diameter of which it is difficult to determine. By geological and morphological data the Acraman Crater is presented by an inner ring 30 km in diameter, an intermediate ring 90 km in diameter, and an outer ring about 150-160 km in diameter. |
| File Size | 121758 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940011738 |
| Archival Resource Key | ark:/13960/t81k4b22p |
| Language | English |
| Publisher Date | 1993-01-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Geomorphology Meteorite Craters Ukraine Cretaceous-tertiary Boundary Thickness Ejecta Earth Crust Sedimentary Rocks Planetary Geology Iridium Australia Impact Damage Anomalies Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
