Corrections and Clarifications


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Science  22 Aug 1986:
Vol. 233, Issue 4766, pp. 830
DOI: 10.1126/science.233.4766.830-b


The time of impact of a meteorite at Lake Acraman is estimated to have been around 600 million years ago, when materials were being deposited in the Bunyeroo Formation, not 1 billion years ago as stated in "Meteorite scenario pieced together" (This Week in Science, 11 July, p. 139).