Door Point: A Buried Volcano In Southeast Louisiana – A Paper Written in 1976



Jules Braunstein and Claude E. McMichael

An exploratory well, the Shell Oil Company, State Lease 3956 No. 1, Offshore St. Bernard Parish, Louisiana, was completed in 1963 at a total depth of 8538 feet. The last 1300 feet of hole was cored and drilled through volcanic material of Late Cretaceous Age. The location of this well is shown on Figure 1.
Pre-drilling seismic data had revealed the presence on this prospect of intrusive material with a density slightly higher than that of the surrounding sediments. Gravity data defined a weak maximum here, and no salt was believed to be present.
The igneous material consisted of angular fragments of altered porphyritic basic rock. In cores it proved to be evenly bedded and cemented by sparry calcite. Radioactivity age dating fixed a minimum age of crystallization of this rock at 82 m.y. + 8, or middle Late Cretaceous (Austin). Bulk density of the igneous rock ranged from 2.02 gm/cc near the top of its occurrence to 2.53 gm/cc near the bottom of the well.

Three gas accumulations, with an aggregate thickness of 38 feet, were encountered in the Miocene section between 5092 and 6219 feet in the Shell well. Gas-bearing sands were not present in two other wells drilled later on the same structure (Fig. 2).

Although evidence of Late Cretaceous volcanic activity is widespread in northern Louisiana, as well as in Mississippi, and southeast of Louisiana in the Gulf of Mexico, the Door Point prospect lies within an area that had been previously designated as being free of volcanism.



Source here or here

Map of Earth During The Late Cretaceous Period


More info on possible buried volcano in Louisiana>>>  here

Stay Tuned for the next post…

Why is BP so concerned about Volcanoes all of a sudden?  V4T


Special thanks to Abraveheart1

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18 thoughts on “Door Point: A Buried Volcano In Southeast Louisiana – A Paper Written in 1976

    • Yes. I found the other paper you just blogged about a few weeks ago and sent it to a friend. I had all of this stuff but I hadn’t put it out there yet. Too much is going on at one time! I will send you the link to the other one. It’s a doozy…

      • OK. Good. Nevermind its a lot of stuff … I put lots of tags in these posts to make it easy later to find them!
        No excuse in Louisiana for ‘experts’ in oil not to know these things. Many of the top geology and mining departments are within the state!

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  6. after this first happened someone posted BP knew they drilled to historical depths in water where underwater volcanoes and lava veins and other toxic elements were present that would cause earthquakes and what we are seeing today with the LA sinkhole. BP compared it to something similar Russia had done, except that was on land. guess few caught that at the time. there will be those who spout it was a dead volcano as if thats the only one they’re talking about. and for those underwater lava veins and other toxic elements don’t worry we didn’t breach those either. sincerely, BP

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