# Midnight Volcano

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**Midnight Volcano** is a buried [extinct volcano](/source/Extinct_Volcano) in southern [Humphreys County](/source/Humphreys_County,_Mississippi), Mississippi. It is named after the nearby town of [Midnight, Mississippi](/source/Midnight,_Mississippi). During the time it was active, Midnight Volcano may have been a volcanic island in the [Mississippi Embayment](/source/Mississippi_Embayment).[1]

The volcanic activity in the area is associated with the [Monroe Uplift](/source/Monroe_Uplift),[2][3] and igneous rocks in the region have been dated from 84 to 73 [Ma](/source/Year#SI_prefix_multipliers).[4] A well drilled in Humphreys County found around 600 m (2000 ft) of volcanic rock, starting 1110 m (3641 ft) below the surface at the shallowest.[5] The most recent measured volcanic rock was dated to 66 Ma,[6] while older (and deeper) samples were dated at 81 and 94 Ma.[7]

These most recent deposits roughly coincide with the activity of [Jackson Volcano](/source/Jackson_Volcano), another buried volcano southeast of Midnight[8]

Volcanic debris from this volcanism was also found in the "Coffee sands", a Cretaceous sand layer to the north.[2]

## See also

- [Jackson Volcano](/source/Jackson_Volcano)
- [Mississippi Embayment](/source/Mississippi_embayment)
- [Bermuda Hotspot](/source/Bermuda_hotspot)
- [List of Volcanoes in the United States](/source/List_of_volcanoes_in_the_United_States)

## References

1. ["Ask Rufus: Tombigbee sharks and Mississippi volcanoes"](http://www.cdispatch.com/opinions/article.asp?aid=47721). *The Commercial Dispatch*. Retrieved June 11, 2018.

1. Mellen, Frederic Francis (April 18, 1958). ["Cretaceous Shelf Sediments of Mississippi, Mississippi State Geological Survey, Bulletin 85"](https://www.mdeq.ms.gov/wp-content/uploads/2017/06/Bulletin-85.pdf). pp. 23–24. Retrieved June 11, 2018.

1. Pitts, Bill. ["NSV Whatever Happened To...?"](http://www.newsouthernview.com/pages/nsv_wht_jacksons_volcano.html). *www.newsouthernview.com*. Retrieved June 11, 2018.

1. Cox, Randel Tom (September 2002). ["The Mississippi Embayment, North America: A first order continental structure generated by the Cretaceous superplume mantle event"](https://www.researchgate.net/figure/Age-data-for-Cretaceous-igneous-rocks-in-the-Mississippi-Embayment-and-vicinity-Ages-are_fig2_248515758). *Journal of Geodynamics*. **34** (2): 163–176. [Bibcode:2002JGeo...34..163C](https://ui.adsabs.harvard.edu/abs/2002JGeo...34..163C). [doi:10.1016/S0264-3707(02)00019-4](https://doi.org/10.1016/S0264-3707(02)00019-4). – via ResearchGate.

1. Baksi, Ajoy (1997). "The Timing of Late Cretaceous Alkalic Igneous Activity in the Northern Gulf of Mexico Basin, Southeastern USA". *The Journal of Geology*. **105** (5): 629–643. [Bibcode:1997JG....105..629B](https://ui.adsabs.harvard.edu/abs/1997JG....105..629B). [doi:10.1086/515966](https://doi.org/10.1086/515966). [JSTOR 10.1086/515966](https://www.jstor.org/stable/10.1086%2F515966). [S2CID 129911825](https://api.semanticscholar.org/CorpusID:129911825)

1. Merrill, Robert (1981). ["Genesis of bentonite in the Upper Cretaceous strata of Monroe County, Mississippi"](http://umiss.lib.olemiss.edu/record=b1432684%7ES0). *Report of Student Investigations (Mississippi Mineral Resources Institute)*. **820**

1. Sundeen, Daniel A. & Cook, Philip L. (1977-08-01). ["K-Ar dates from Upper Cretaceous volcanic rocks in the subsurface of west-central Mississippi"](https://pubs.geoscienceworld.org/gsabulletin/article-abstract/88/8/1144/202181/K-Ar-dates-from-Upper-Cretaceous-volcanic-rocks-in). *GSA Bulletin*. **88** (8): 1144–1146. [Bibcode:1977GSAB...88.1144S](https://ui.adsabs.harvard.edu/abs/1977GSAB...88.1144S). [doi:10.1130/0016-7606(1977)88<1144:KDFUCV>2.0.CO;2](https://doi.org/10.1130/0016-7606(1977)88%3C1144:KDFUCV%3E2.0.CO;2). [ISSN 0016-7606](https://www.worldcat.org/issn/0016-7606)

1. Livesey, Christina Lee (1990). ["Petrogenesis and Provenance of Epiclastic Volcanic Cobbles From the Cretaceous Woodbine Formation, Southwest Arkansas."](https://digitalcommons.lsu.edu/cgi/viewcontent.cgi?article=5932&context=gradschool_disstheses). LSU Historical Dissertations and Theses 4933. Retrieved 11 November 2018.

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Adapted from the Wikipedia article [Midnight Volcano](https://en.wikipedia.org/wiki/Midnight_Volcano) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Midnight_Volcano?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.