@@GeologyHub yes your voice sounds very fluid and natural in this one. Thank you I totally loved this video... well actually I love all your videos and never miss an upload ❤
Santa Maria (1902) and Pinatubo (1991) were both very similar in size, hence different estimates putting one or the other as the larger VEI 6 eruption, but no one disputes that the largest of the 20th Century was Novarupta in Alaska in 1912.
Pinatubo though temporarily cooled the planet as a *mean average* of about 0.5 Celsius (some places more than others) for 2 years as it produced the most sulphur since the 1883 eruption of Krakatoa
Also (not relatedtomagnitudeof eruption, just a cool fact), Pinatubo's eruption coincided with a massive typhoon literally passing over the volcano. Idk other examples of that happening but it's probably rare.
Thank you for creating a new path of inquiry I can now look into in my volcano wanderings!!!!! I now understand a little bit about that magma chart you frequently show on your videos. You are a great educator of all volcanic occurrences !!! 🌋
On another final note, there’s a YT channel called aFarTV I think, with HD livestreams of numerous active volcanoes around the world including Santiaguito. Highly recommended!
Is this a true andesite, or "andesite" where it is actually a high silica (dacite or rhyolite) melt with mafic crystals entrained in it giving the intermediate bulk composition, but where the high silica liquid is doing all the "work"? It sounds like it is a true andesite, but just look at a bunch of the Andes volcanoes for examples that never stop behaving like higher silica eruptions even though the bulk composition is intermediate or even almost mafic.
I did not know that fractional crystallisation could work in reverse. Wow. I alway thought it meant that any magma under going it was going to become more silica rich. So, does this mean we might get lava flows rebuilding the old cone? Or is that old cone well and truly finished?
Elemental analysis (such as through portable x-ray fluorescence) can also identify not only which volcano a piece of obsidian (volcanic glass) came from, but the trace elements can even change in their concentrations, making it possible to identify which eruption or flow as well. That information has led to the identification of long-distance trade routes in obsidian by archaeologists. Trace element analysis is a powerful tool that makes use of the change over time of the eruptive material.
Andesite is also present on the moon, as well as various other amorphic deposits (i think im using the correct term to describe volcanic rock), it can be found all the way in the lunar highlands down to the lunar marae, or lava lakes that once flowed across the lunar surface, and a little known fact all astronauts during apollo all studied in CIT as geologists
Thanks Tim for yet another excellent video, and especially that diagram of fractional crystallisation. I have two questions though. Firstly, the diagram assumes that there is no influx of fresh magma into the chamber - is there clear evidence for that? And secondly, assuming that there really is no fresh influx, surely the pressure of the magma chamber must be falling with every eruption so it should eventually be unable to erupt at all as the magma is no longer under sufficient pressure to reach the surface (and hence of course @Skibidididy's comment about caldera collapse).I am struggling to understand this - can you explain please?
Im greatful for your efforts and information... however, FYI, as i may appreciate a lecture from a classroom or church podium, i do not appreciate the reading of long passages from scripture or a textbook... You leave me with the uncomfortable impression Im being read to rather than talked to. Wilsey and Myron Cook are still my go too for great warming videos; your style leaves me looking for mittens and a sweater. Good luck.
your channel made the concept of fractional crystallisation accessible to me (unlike the Wikipedia article), a non-geologist
I love learning this stuff. Volcanos are really amazing! Thanks a million!!
No problem. Today's video was more of a "fun one" I decided to sporadically make.
@@GeologyHub yes your voice sounds very fluid and natural in this one. Thank you I totally loved this video... well actually I love all your videos and never miss an upload ❤
I am fascinated by geology. I am learning more from this channel than any other.
It's interesting how each volcano has their own individual characteristic.
Nature at its finest.
Appreciate the content, and the comments it draws. I enjoy learning about volcanoes.
Santa Maria (1902) and Pinatubo (1991) were both very similar in size, hence different estimates putting one or the other as the larger VEI 6 eruption, but no one disputes that the largest of the 20th Century was Novarupta in Alaska in 1912.
Pinatubo though temporarily cooled the planet as a *mean average* of about 0.5 Celsius (some places more than others) for 2 years as it produced the most sulphur since the 1883 eruption of Krakatoa
Also (not relatedtomagnitudeof eruption, just a cool fact), Pinatubo's eruption coincided with a massive typhoon literally passing over the volcano. Idk other examples of that happening but it's probably rare.
It shows pinatubo at 13 cubic kilometers
Novarupta google says was the same amount
Thank you for creating a new path of inquiry I can now look into in my volcano wanderings!!!!! I now understand a little bit about that magma chart you frequently show on your videos. You are a great educator of all volcanic occurrences !!! 🌋
Thanks for all the hard work on these videos!
Sta Maria's old name was Gagxanul, which means "naked mountain".
Thank you again for the interesting video 😊👍🌋
It's interesting to note that the Mont Pelee eruption in 1902 occurred almost exactly 6 months prior to the Santa Maria eruption.
Great video
Volcanoes have a life cycle and go thru changes like humans
On another final note, there’s a YT channel called aFarTV I think, with HD livestreams of numerous active volcanoes around the world including Santiaguito.
Highly recommended!
Excellent video. Very educational. Thank you, Tim.
Stacie
That Sta. Maria hadn't erupted for 20k years and has now been erupting constantly for 100 plus years is amazing!
Is this a true andesite, or "andesite" where it is actually a high silica (dacite or rhyolite) melt with mafic crystals entrained in it giving the intermediate bulk composition, but where the high silica liquid is doing all the "work"? It sounds like it is a true andesite, but just look at a bunch of the Andes volcanoes for examples that never stop behaving like higher silica eruptions even though the bulk composition is intermediate or even almost mafic.
Why don't you put fahrenheit as well as you do celsius for us in the USA !
Awesome vid! New info for me haha! Day 3 of asking for a Yellowstone vid :3
I did not know that fractional crystallisation could work in reverse. Wow. I alway thought it meant that any magma under going it was going to become more silica rich.
So, does this mean we might get lava flows rebuilding the old cone? Or is that old cone well and truly finished?
So pretty it’s pretty much getting over a cold at this point?
Elemental analysis (such as through portable x-ray fluorescence) can also identify not only which volcano a piece of obsidian (volcanic glass) came from, but the trace elements can even change in their concentrations, making it possible to identify which eruption or flow as well. That information has led to the identification of long-distance trade routes in obsidian by archaeologists. Trace element analysis is a powerful tool that makes use of the change over time of the eruptive material.
Andesite is also present on the moon, as well as various other amorphic deposits (i think im using the correct term to describe volcanic rock), it can be found all the way in the lunar highlands down to the lunar marae, or lava lakes that once flowed across the lunar surface, and a little known fact all astronauts during apollo all studied in CIT as geologists
Greetings. Since dacite is associated (sitting on top of) with andesite and trachyte, could it also potentially erupt trachyte?
Now you’re just flexing your geology knowledge on all of us
Thanks Tim for yet another excellent video, and especially that diagram of fractional crystallisation. I have two questions though.
Firstly, the diagram assumes that there is no influx of fresh magma into the chamber - is there clear evidence for that?
And secondly, assuming that there really is no fresh influx, surely the pressure of the magma chamber must be falling with every eruption so it should eventually be unable to erupt at all as the magma is no longer under sufficient pressure to reach the surface (and hence of course @Skibidididy's comment about caldera collapse).I am struggling to understand this - can you explain please?
Is this new lava similar to what is erupting from the Great Sitkin volcano in Alaska?
Santa Maria eruption was the 3 largest
👍
😎👍
4:42 caldera collapse in 3...2...1......
🙂♥️✌️
first
🫡
Th-That feeling when KNEE SURGERY TOMARROW!?!??!?!??!?!?!?!??!?!?!?!??!?!?!?!
🥇💐😉
Commenting first and nothing about the video can lower your IQ and lead to mental and emotional health issues .
FYI, my thumbnail says "Geologist Anal" bc the timestamp is in the corner 🤷♂️
FYI, geologists are frequently very anal about the details of our science so it's a lucky coincidence
Im greatful for your efforts and information... however, FYI, as i may appreciate a lecture from a classroom or church podium, i do not appreciate the reading of long passages from scripture or a textbook... You leave me with the uncomfortable impression Im being read to rather than talked to. Wilsey and Myron Cook are still my go too for great warming videos; your style leaves me looking for mittens and a sweater. Good luck.
AI quantum computers operated by spiritual leaders will words rhythm of a joke.
? Data irrelevant is!
Who says that AI , is operated by those alledged to be Spiritual ?
The programs can be biased by the programers and corrupted used by the operators