T91 The Pulse of the Earth: Episodic and Periodic Events on Timescales of ³10 million Years

Sunday, 27 October 2013
1:00 PM - 5:00 PM
Room 203

LIPS AND IMPACT EVENTS:  A CONNECTION BETWEEN KALKARINDJI LIP, MOORACOOCHIE VOLCANICS AND MAPCIS?

Paper number: T91-13
Program: Technical Sessions
Time: 4:15 PM – 4:30 PM

Authors

Abstract

A connection between large igneous provinces and impact events has been a long sought after goal to explain the association of both, with extinction events. Many have considered the association between IEs and LIPs to be tenuous. From this a dichotomy developed often separating scientists into opposing camps supporting either LIPs or IEs as the cause of extinction events.

This presentation introduces the spatial and temporal relationship between the end Ediacaran, MAPCIS, and the annular early Cambrian Kalkarindji LIP. The coeval Mooracoochie volcanics within the spreading Cambrian rift separating the North Australia Craton from the Gawler Craton gives a clue to a possible cause and effect between impacts and subsequent volcanics.