The Acraman impact structure - Source of ejecta in late Precambrian shales, South Australia

Details The Acraman impact structure - Source of ejecta in late Precambrian shales, South Australia The Acraman impact structure - Source of ejecta in late Precambrian shales, South Australia

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986sci...233..200w&link_type=abstract

Science (ISSN 0036-8075), vol. 233, July 11, 1986, p. 200-203.

Physics

26

Australia, Craters, Ejecta, Impact Damage, Precambrian Period, Shales, Structural Basins, Lakes, Quartz, Ring Structures, Volcanology

Scientific paper

A major probable impact structure occurs in middle Proterozoic dacitic volcanics in the Gawler Ranges, central South Australia. The structure has an inner depressed area about 30 kilometers in diameter that contains the Lake Acraman salina, an intermediate depression or ring about 90 kilometers in diameter, and a possible outer ring approximately 160 kilometers in diameter. Outcrops of dacite in Lake Acraman are intensely shattered and contain shatter cones and multiple sets of shock lamellae in quartz grains. The Acraman structure is the largest probable impact structure known in Australia and is the likely source of dacitic ejecta found in late Precambrian marine shales some 300 kilometers to the east.

Affiliated with

Also associated with

No associations

Rating

The Acraman impact structure - Source of ejecta in late Precambrian shales, South Australia does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Acraman impact structure - Source of ejecta in late Precambrian shales, South Australia, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Acraman impact structure - Source of ejecta in late Precambrian shales, South Australia will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1656818