These remind me a little of devils postpile. Those are octagonal and have perfect octagons on the top … one that a lot of people don’t know about are at Crowley lake … they are spiral in formation and unlike anything I have ever seen. They were uncovered by the lake created by LAWDP. It’s an amazing spot!!
That’s awesome, brah! My mom knew the lady that used to live in that house. I’ve been inside that house. It was like a museum. But I was more interested in the back yard, so I walked outside and got as close to the edge as possible. They had to “send out a search party” to bring me back. I remember thinking how these columns reminded me of Devil’s Postpile.
OMG mind blown, I love columns, majestic pillars of Poseidon. Just dont loose the drone down a crack as Nick did his hammer. LOL btw love the choice of music you've been using on the drones vids. 2 thumbs up ++
Andesite is extrusive, which is why it has aphanitic texture. It's intrusive counterpart would be diorite, with phaneritic texture. This video is awesome :)
Thanks for the clarification. I think I knee-jerked with "intrusive" because of the columnar jointing pattern, implying that this section of andesite cooled slowly. Crazy to see columnar jointing like this in andesite! Thanks for watching and commenting.
OK so basalt columns have the 6-sided straight columnar fractures or French fry appearance. Andesite is harder mafic material, and still makes columns. Rhyolite is hardest of the mafics - does it also make columns? So the harder and denser the igneous rock, the greater the aphanetic crystal structure (smaller crystals in basalt, smaller crystals in andesite and rhyolite) ? Large columns are from very extensive slow cooling of the matrix, while small columns are quicker cooling of the matrix. Fast cooling of the matrix would be smaller crystallization (aphanetic) while the larger columns with slower cooling and greater growth of larger crystals would be phanetic ? So if all of these remain buried, cooked, and eventually uplifted, the actual crystallization process is underground, and such cooling and fracturing of the rocks would all be underground. We only see this geology because all of overburden has eroded away leaving these columns with their either small or large crystallization and density categories ? So (currently being at an ocean shoreline) these columns were NOT within such large volumes of water and slow/fast cooling. They were extruded magma chambers or plutons, fast or slow cooled, set, and then with other plate tectonics and continental drift, these formations became associated with such oceans and shorelines. If such basalt, andesite, or rhyolite did come out from such ocean waters it would be pillow lava. Same for the Irish-English (Irish Channel) Giant's pathway of basalt columnar formations. These in the geological past would also have had to have been original dry land formations, with later erosion, and other movements of the land to its current location ... or sea water levels have now reached such earlier dry land basalt formations, flows, traps, etc. Just read that they are now categorizing High (Hi-T) and Low Titanium (Lo-T) composition basalt. Theoleiitic basalt is found in oceanic basin and mid-ocean ridges with this content. Wondering how that is incorporated into these same columnar basalt, andesite, (and rhyolite?) - or not ?
I was really surprised to read that these were Andesitic columns. I just assumed they were basalt with salt-spray tarnish. I never new that andesite could create columns like this. I guess all conditions were right though. I'll have to research more if all igneous rocks have this potential with the right conditions ???
@@geologicallyspeaking Are there anymore extensions (or branches) of this dry land (or further eroded underwater) formation explaining such unique magma chamber and explosive uplift of this magma material creating this anomaly ? Any dates on this, and whether it could be Baja formations, when NA craton N-S aligned shoreline lay across the equator W-E ?
Basalt is mafic, andesite is intermediate, and rhyolite is felsic. Gorgeous rhyolite columns can be found at Owens River Gorge, off the 395 North, nearish Tom's Place. My physical geology class went there in 2019
Amazing rocks! You gotta love it! 💕💕 Awesome video! 👍👍
Thanks Jennifer!
These remind me a little of devils postpile. Those are octagonal and have perfect octagons on the top … one that a lot of people don’t know about are at Crowley lake … they are spiral in formation and unlike anything I have ever seen. They were uncovered by the lake created by LAWDP. It’s an amazing spot!!
That’s awesome, brah! My mom knew the lady that used to live in that house. I’ve been inside that house. It was like a museum. But I was more interested in the back yard, so I walked outside and got as close to the edge as possible. They had to “send out a search party” to bring me back. I remember thinking how these columns reminded me of Devil’s Postpile.
Another award candidate for best cinematography.
Haha really appreciate it Melanie.
OMG mind blown, I love columns, majestic pillars of Poseidon. Just dont loose the drone down a crack as Nick did his hammer. LOL btw love the choice of music you've been using on the drones vids. 2 thumbs up ++
Thanks. Haha! My heart always races when I fly that thing.
Great footage! Thanks for the background info too.
Thanks for watching!
Got some really cool shots here!
Great job.
Thanks Craig.
Good archival footage!
Can't fly a drone there these days.
Andesite is extrusive, which is why it has aphanitic texture. It's intrusive counterpart would be diorite, with phaneritic texture. This video is awesome :)
Thanks for the clarification. I think I knee-jerked with "intrusive" because of the columnar jointing pattern, implying that this section of andesite cooled slowly. Crazy to see columnar jointing like this in andesite! Thanks for watching and commenting.
OK so basalt columns have the 6-sided straight columnar fractures or French fry appearance. Andesite is harder mafic material, and still makes columns. Rhyolite is hardest of the mafics - does it also make columns? So the harder and denser the igneous rock, the greater the aphanetic crystal structure (smaller crystals in basalt, smaller crystals in andesite and rhyolite) ?
Large columns are from very extensive slow cooling of the matrix, while small columns are quicker cooling of the matrix. Fast cooling of the matrix would be smaller crystallization (aphanetic) while the larger columns with slower cooling and greater growth of larger crystals would be phanetic ?
So if all of these remain buried, cooked, and eventually uplifted, the actual crystallization process is underground, and such cooling and fracturing of the rocks would all be underground. We only see this geology because all of overburden has eroded away leaving these columns with their either small or large crystallization and density categories ?
So (currently being at an ocean shoreline) these columns were NOT within such large volumes of water and slow/fast cooling. They were extruded magma chambers or plutons, fast or slow cooled, set, and then with other plate tectonics and continental drift, these formations became associated with such oceans and shorelines. If such basalt, andesite, or rhyolite did come out from such ocean waters it would be pillow lava. Same for the Irish-English (Irish Channel) Giant's pathway of basalt columnar formations. These in the geological past would also have had to have been original dry land formations, with later erosion, and other movements of the land to its current location ... or sea water levels have now reached such earlier dry land basalt formations, flows, traps, etc.
Just read that they are now categorizing High (Hi-T) and Low Titanium (Lo-T) composition basalt. Theoleiitic basalt is found in oceanic basin and mid-ocean ridges with this content. Wondering how that is incorporated into these same columnar basalt, andesite, (and rhyolite?) - or not ?
I was really surprised to read that these were Andesitic columns. I just assumed they were basalt with salt-spray tarnish. I never new that andesite could create columns like this. I guess all conditions were right though. I'll have to research more if all igneous rocks have this potential with the right conditions ???
@@geologicallyspeaking To me, these appear as really rare geological anomalies, as would be rhyolite columns.
@@johnlord8337 I agree John. The exception, not the rule for sure. Glad to have this right near me.
@@geologicallyspeaking Are there anymore extensions (or branches) of this dry land (or further eroded underwater) formation explaining such unique magma chamber and explosive uplift of this magma material creating this anomaly ? Any dates on this, and whether it could be Baja formations, when NA craton N-S aligned shoreline lay across the equator W-E ?
Basalt is mafic, andesite is intermediate, and rhyolite is felsic. Gorgeous rhyolite columns can be found at Owens River Gorge, off the 395 North, nearish Tom's Place. My physical geology class went there in 2019
love the channel name and footage, you should get on camera and explain more.
if its geologically speaking well you up for that challenge?
I'm planning on it. In this style of video I just like to showcase the formation.
Yeah, this is on the list! Related to extension of the basin; intruding magma within fissures.
it smell as a big freeze ...
pillars of hercules
Geology need a big frame , not tiny points ... ( in the idea to understand the usual flow's ...)