Massive Australian Precambrian/Cambrian Impact Structure Massive Australian Precambrian/Cambrian Impact Structure The Massive Australian Precambrian/Cambrian Impact Structure also known as MAPCIS is a proposed impact structure based upon arguments presented by Daniel P. Connelly at Geological Society of America meetings. Its center is located approximately equidistant between Uluru (Ayers Rock) and Mount Conner in Australia's Northern Territory. The structure is approximately in diameter. However, a hypothetical outermost ring in diameter is claimed to be the result of undefined far field stresses. Connelly argues that the age of this hypothetical impact is approximately 545 mya which puts it just before the Cambrian explosion (542 mya) of the
Circle of Ash haunted attraction Circle of Ash haunted attraction Circle of Ash haunted attraction is a haunted attraction near Central City, Iowa, which runs seasonally for Halloween. It was opened in 2000 as Canfield's Frightmare Forest. It grew from a small haunted trail to a event. It moved from its original location in a botanical preserve to an unused warehouse, and subsequently to its present location at the Linn County Fairgrounds. "Frightmare Forest" was a haunted trail attraction located to the northeast of Cedar Rapids, Iowa, which ran seasonally for Halloween. It was opened in 2000 by Chad Canfield as Canfield's Frightmare Forest, subsequently