When you say "cools slowly" what does that mean? Is slowly one year, ten years, 100, 1000? How long does it take a quarts crystal to form? Enjoying your talks.
Ive ask this same question on similar videos. When you say magma that cools slowly allows large crystal growth can you define slowly ? You talking a week, month , year , thousands or millions of years ?
Thank you so much for this video! I've been trying to look up the types of rocks at Crystal Cove and I couldn't find much. This video was very informative!
I have been in this place SO many times! One visit, as my gf and I sat on a nearby stump or rock, we watched as multiple Southern Pacific Rattlesnakes emerged from the brush, and crawled over to well-hidden spots to lie in wait of prey, small furry rodents... mice, rats, etc. They use the lure of fresh water in a searing desert, in their hunting. It was really cool to watch. Likewise, on the other side of the 'hill', there is another 'oasis', Fortynine Palms Oasis. Really beautiful area, full of water, pools, and wildlife. Desert Tortoises abound in this area.
Sir, IDK how familiar you are with the complete Southern California Geology story. I have lived here all my life and I have hiked extensive ly in the hills and valleys of this area. I actually lived in the Santa Susana hills here for a few years. This area is quite fascinating as it is made up of sandstone boulders. From what I could find out from reading about these mountains, the sandstone was laid down 450,000 years ago. Come check it out.
There are about a dozen or more palm tree groups all along the fault line. Most are hidden away ,some ypu can see from the 10 freeway on your left as youre traveling east.
I love that place . Entering into it is like entering natures cathedral. So peaceful and cooler instantly. The sound of the wind tjrough the palm fronds and the music of the birds is just so nice.
Ive been down into the fault like in the Coachella vslley and words cant describe the feeling that comes over you when you see how massive the earths forces truly are . The uplifts and folding you see in the walls towering over your head are justvmind blowing !! If ypu ever get a chance to see it , DO IT ! There are jeep tours that are excellent and also take ypu to palm oasis growing from the fault linr
That site brought back some memories. Paraglider pilots use that hill just up from where you parked your Jeep as a launch site we call Winchester Bowl. There is somewhat of a weed clearing about halfway up the hill where we would launch and fly for hours, then land down by your Jeep. I do remember finding shorl on that hill, and there were also largish books of mica. That last outcrop you dug around in looked familiar! There is also shorl over in the San Gorgonio Pass near Cabazon, but it is now hard to find specimens. I found a couple of pieces last year, but unless heavy rains wash away the surface, it hides from sight!
for me, it would make it more enjoyable, for those of us who live by here, to not give away the locations of such finds , they will now be striped and trash left behind, we have so many locations out this way, roc hounds know where to look, just my 2 cents been around these hills along time and seen the scale of the intrusion of more people, just dont give away exact locations,, love the roc formation info, it is addictive
You described pegmatite as a crystal size term of over 1 cm. You showed hornblend crystals over that size but did not describe them as pegmatitic. Now I learned that there could be mafic pegmatites but those you showed were silicic as pegmatites commonly are. These I suspect were late stage injection of a differentiated magma that was enriched in silica?? That is an interesting process in its' own right. Gabbro and silicious pegmatite seem as incompatible as basalt and rhyolite. But those exist in proximity in Iceland in certain areas for particular reasons. There is a lot going on in a magma body deep underground.
Are the hornblend dikes actually all the way through the rocks or are some just on the surface as if it flowed over the rock? Your videos are awesome! Very passionate!
I used to live very close to this location in Nuevo. And even the yard that I lived in I found very impressive pegmatites I used to find a massive amount of garnets and tourmaline.
I can spot the syncline but what _really_ has me intrigued is the multiple sediment layers that look like each is sliding down in one direction like a deck of cards. I'm gonna have to read up more on this place. I'd been through Barstow several times decades ago but had never heard of Rainbow Basin.
The world needs you to have your own TV-show. Very informative and very entertaining. 😃 Greetings from The Netherlands. Subscribed. I wish you get a million subscriptions within a decade🪄🔮
