Hong Kong's Super Volcano
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2 سال پیش
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#supervolcano
#supervolcano #hongkong #china #volcano #volcanic #volcaniceruptions #volcanoeruption #geoscience #earthscience #caldera #victoriaharbour #saikunghongkong #saikung #granite #ancient #volcanoes #geological #geology #earthsciences #geoscience #geosciences
Hong Kong is built on the caldera of an unbelievably massive super volcano that existed between 180 to 140 million years ago. 5 different large calderas are dotted around Hong Kong, and it itself is literally built upon the bowels of the once churning magma chamber, which in present day exists as granite outcrops in the more deeply eroded parts, and rhyolite outcrops in others.
The High Island Volcanic caldera was the final and largest supervolcanic eruption that occurred here, with it being stronger then Yellowstone's most recent supervolcanic eruption. It released over 1300 km3 of material and was a VEI 8 on the volcanic explosivity index. The volcano existed as a result of a subduction zone that lay of the east side of ancient china, where the pacific ocean was subducting beneath the plate, and the associated melt led to the formation of this massive supervolcanic complex. This region is extremely complex, there are numerous large faults and many more smaller faults. There are many areas where numerous basaltic dykes spewed out effusive lava flows, and there seems to be some evidence of this volcanic eruption beginning life as an intermediate composition with some andesitic rocks being found, too.
Hong Kong has some of the most spectacular outcrops of the incredibly rare columnar rhyolite formations. These beautiful light coloured hexagonal pillars dotted all around the area are the solidified remains of the massive amounts of magma that existed in the batholithic magma chamber that present day Hong Kong is literally built within.
If you wish to be in the loop for more content such as this, each like, share and subscription helps the channel immensely. But either way there will be new videos covering a whole range of topics so I hope you will be there to join in the fun on this epic journey!
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OzGeology is an Australian-based YouTube channel that specializes in creating high-quality documentaries on Earth sciences and natural disasters. The content is designed to be easy to digest and covers a wide range of topics, not only focusing on geology but occasionally exploring other scientific areas as well.
Hong Kong is built on the caldera of an unbelievably massive super volcano that existed between 180 to 140 million years ago. 5 different large calderas are dotted around Hong Kong, and it itself is literally built upon the bowels of the once churning magma chamber, which in present day exists as granite outcrops in the more deeply eroded parts, and rhyolite outcrops in others.
The High Island Volcanic caldera was the final and largest supervolcanic eruption that occurred here, with it being stronger then Yellowstone's most recent supervolcanic eruption. It released over 1300 km3 of material and was a VEI 8 on the volcanic explosivity index. The volcano existed as a result of a subduction zone that lay of the east side of ancient china, where the pacific ocean was subducting beneath the plate, and the associated melt led to the formation of this massive supervolcanic complex. This region is extremely complex, there are numerous large faults and many more smaller faults. There are many areas where numerous basaltic dykes spewed out effusive lava flows, and there seems to be some evidence of this volcanic eruption beginning life as an intermediate composition with some andesitic rocks being found, too.
Hong Kong has some of the most spectacular outcrops of the incredibly rare columnar rhyolite formations. These beautiful light coloured hexagonal pillars dotted all around the area are the solidified remains of the massive amounts of magma that existed in the batholithic magma chamber that present day Hong Kong is literally built within.
If you wish to be in the loop for more content such as this, each like, share and subscription helps the channel immensely. But either way there will be new videos covering a whole range of topics so I hope you will be there to join in the fun on this epic journey!
🎥 If you would like to support this channel, consider joining our Patreon:
Patreon: OzGeology
👉 You can also click the "join" button to join our Youtube channel's membership. Every contribution helps to create more videos.
🌋 Subscribe to our Youtube Channel: https://www.seevid.ir/fa/result?ytch=UCxLr...
💥Link To Our Facebook:
Facebook: OzGeology
🌏 About OzGeology
OzGeology is an Australian-based YouTube channel that specializes in creating high-quality documentaries on Earth sciences and natural disasters. The content is designed to be easy to digest and covers a wide range of topics, not only focusing on geology but occasionally exploring other scientific areas as well.
2 سال پیش
در تاریخ 1401/07/02 منتشر شده
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