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crater formation

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crater formation,
n a circular depression or pit in the surface of a tissue or body part, such as in cancer of the skin. Also seen in the formation of interdental depressions in the gingival tissues or subjacent bone; often associated with the destructive effects of necrotizing periodontal disease.


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Instead, the team found that the fastest debris, ejected at the initial stages of crater formation, tended to depart at an angle closer to 30 degrees more of a sideways spray than an upward trajectory.
Surface flows and surface defects are discussed in terms of crater formation, crater edge velocity, surface tension gradients, and the rate of formation of craters.
[FIGURE 2 OMITTED] [FIGURE 3 OMITTED] CALCULATION OF THE HEIGHT OF THE EMITTED GAS FLOW Crater formation by a hypervelocity impact is a relatively well studied and mathematically modelled process (Melosh 1989).
 
 
 
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