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To: average joe who wrote (23401)7/21/1999 4:03:00 PM
From: Mike Hermann  Read Replies (1) | Respond to of 26850
 
if the eruption/intrusion was very long in duration or large in volume ( which it obviously was) a feeder or pipe should exist. Maybe it doesn't have a geophysical signature or is masked by the extensive dike(lacolith?). All kimberlites have a source. It is hard to maintain a fissure eruption for very long, it almost always centralizes toward a point source toward the waning phases of emplacement.


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