The site of one of Earth's largest single explosive volcanic eruptions to have ever occurred is located in an often forgotten about patch of desert. Here, Messum Crater represents the remains of this ancient long extinct supervolcano which erupted all the way back during the early Cretaceous period. This video will briefly discuss this massive caldera, which is sometimes incorrectly mistaken as an impact crater.
Thumbnail Photo Credit: Google Earth, Image Landsat / Copernicus. This image was overlaid with text in addition to GeologyHub made graphics (the image border & the GeologyHub logo).
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Sources/Citations:
[1] A Ewart, S.C Milner, A.R Duncan, M Bailey, The Cretaceous Messum igneous complex, S.W. Etendeka, Namibia: reinterpretation in terms of a downsag-cauldron subsidence model, Journal of Volcanology and Geothermal Research, Volume 114, Issues 3-4, 2002, Pages 251-273, ISSN 0377-0273, doi.org/10.1016/S0377-0273(01.... (www.sciencedirect.com/science...)
[2] Milner, Simon C. and Anthony Ewart. “The geology of the Goboboseb Mountain volcanics and their relationship to the Messum Complex, Namibia.” (2014).
[3] Ewart, A. & MILNER, S. & Armstrong, Richard & Duncan, A.. (1998). Etendeka Volcanism of the Goboboseb Mountains and Messum Igneous Complex, Namibia. Part I: Geochemical Evidence of Early Cretaceous Tristan Plume Melts and the Role of Crustal Contamination in the Parana-Etendeka CFB. Journal of Petrology. 39. 10.1093/petroj/39.2.191.
[4] Glen Fergus, 2015, Article link: gergs.net/all_palaeotemps/, Photo link: i0.wp.com/gergs.net/wp-conten..., CC BY 4.0
Note: This source was used to estimate the temperature in ancient northern Namibia 130 million years ago.
0:00 Messum Crater
1:24 Flood Basalts
2:22 Volcanic Progression
3:05 Major Eruptions
28 июн 2024
