Petrogenesis of melt rocks, Manicouagan Impact Structure, Quebec

@inproceedings{Simonds1978PetrogenesisOM,
  title={Petrogenesis of melt rocks, Manicouagan Impact Structure, Quebec},
  author={Charles H. Simonds and Robert J. Floran and P. E. Mcgee and William C. Phinney and Jeffrey L. Warner},
  year={1978}
}
Abstract. The 65-km-diameter Manicouagan impact structure has an eroded 230-m-thick sheet of clast-laden, impact melt rock with an estimated preerosional volume of >270 km3. All samples are characterized by mineral and lithic clasts or their incompletely digested remnants. Drawing upon previous theoretical studies of shock waves, we suggest that the Manicouagan melt formed in 1 or 2 s in a 5-km-radius hemisphere near the point of impact. The melt accelerated to a few kilometers per second, and… CONTINUE READING

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