Perhaps the best short introductory video on California's geologic history that I've come across. Extremely well done and easy to follow.

I was very interested in the Juan De Fuca Plate section. I'm not a professional geologist, but have been interested in it my whole life. My life diverged away from my dream when we were not wealthy enough for me to attend College and so I joined the military to learn a trade in Aviation and ended up making the military a career. Nice video.

A couple of years ago I became interested in the different Ice Ages and as I was researching, I came across Nick Zentner's vid on "Ice Age Floods" and I was hooked. After watching his different vids and learning about geology for the first time (I just turned 70) and since I live in Southern Cal, I thought I should research Cal geology. I'm glad I did because I found your vids. The first is very informative and easy to follow and I am looking forward to watching more and learning more from you, Thank You!

1:10... I know enough that even living my 58 years in San Jose, Ca. I have heard every one of those names you mention.

With San Andreas on one side and Hayward on the other, Silicon Valley is an individual crumb getting strafed in both directions by the Pacific and American plates.

The graphic/animation at 18:20 is amazing. When you realize what you're looking at...amazing!

Holy batman, this is mondo informative. Thank you

A nice overview! I hope this filters down more and more to lower grade levels in high school, middle school, and elementary school. California is such a unique and marvelous environment that school age children should get exposed while they are still young and full of wonder to all the great processes Professor Patrich describes so well in this presentation. Thanks, Professor Patrich, and hats off to you!

My papa took geology. Probably back in the 60s. He lives in the Sierra Nevadas, he loves it up there. :)

I really enjoyed this video. It's very educational and easy to follow. Thank you for sharing this information.

Thanks. I love geology and all the processes that go into it. Fun. Fun. Fun.

I’m taking a California geography class and this is helpful. Thank you!

I’m mad af that I didn’t study Geology in college. All those social sciences rotted my brain lol

Love it. I have Vasquez rocks Hubbard canyon dreams from as child. I live and raised around there and bouquet Cyn Sierra Palona range.

Hi I am a student at coc. I have not taken any of your courses yet but I am fascinated about earthquakes and geology we may cross paths one day! Thanks for the exciting information!

Mahalos for the detail geo lecture

Thank you interesting lecture

alot of wonderful information to be sure! Except the timing ques and running on, when not needed. sad when i find myself fast forwarding...

❤ thank you

Pretty complex

Some of the gravels from the late Mesozoic in parts of the Sierra Nevada range are super-rich in gold. The scars from the Hydraulic Mines that chased these deposits are still visible today.

8:50... Do I notice it? You can't miss it... Upheaval everywhere, I can drive my car INSIDE of San Andreas Fault.

Pretty sure you "eocene sediments" were placed there, in the very late Quaternary period. Probably about 3,360 years ago, when a tsunami between 1,000-1,500 feet high (if not a thousand feet higher) roared across the Snake River Plain, from the gap in the Rockies, on the eastern side of Wyoming, then flooding south, across western UT, NV and eastern CA, blocked termporarily (geologically speaking) by the Transverse Mountain Ranges in CA, and the volcanic plug at the western end of the Grand Canyon, near the Parashant, and extending into Black Canyon. The water eventually ate through those roadblocks, to stream across southern California (into the LA basin, until the mud built up too high to allow more, and into the the inland area between Riverside and Fallbrook, where it sat for a long time. The waters ate away the original cover over the plug, replaced it with silt it had picked up along the way. This likely took on the order of a century, or more, for the waters to recede, on the west. In the east, the waters plundered the area behind the Front Range, filling the area west to the Wasatch Front, before cresting over the Uintahs, adn flooding into southern UT, northeastern AZ, northwestern NM, and southwestern CO, where it sat until that volcanic plug was reduced enough to let the water begin draining away, sometime in the 1st millennium AD, finally dribbling away completely circa 1250 AD. This began circa 1500 BC, hit its stride with the Joshua Stops the Sun Moment, circa 1344BC, and finished in our time. NOT "millions of years ago". Stones may be 4.5 billion years old, but they could have remained in the lithosphere for 4.4999985 billion years. Earth has a far more violent recent past than "scientists" believe. One wonders why they are so out of touch? We have anecdotal evidence that tells of unimaginable terrors. Unimaginable sorta suggests they "did not dream it up", essentially. That's what "imaginable" is, after all. One has to KNOW what terrors may be, to give them faces and actions. Think of your own irrational fears. Are they based on something in your life? Usually not. You might be the one in 10 billion (supposedly MORE than ALL the people who've called Earth home) that can create valid monsters out of whole cloth, but most of us are so pedestrian, if we haven't seen it, we cannot imagine it, making our fears "nameless" and "faceless". I get sorta frustrated with geologists who tell us "the Colorado River carved it out over millions of years". First, IF the Colorado had done it, it would have looked like the upstream-from-Glen-Canyon-Dam stretch of canyon, sheer walls clearly eroded from old seabed. The Canyon shows erosion at the top of canyons too far from the River for that water to have EVER reached them. Clearly, the water, some 50 trillion acre-feet (on the order of 2,000 times the MAX capacity of Lake Mead), came down from the north, over the Kaibab Plateau, spilling into the basin southwest of Flagstaff, and over the Mogollon Rim, at first, providing the water the Sin Agua peoples survived on, at Tuzigoot, and Montezuma's Castle, filling Walnut Canyon, on the northern edge of the MR, also, where another group of misnamed Sin Aguas survived, and generally carving the wonderland many of us know and love, all terrain shaped by large amounts of fast-moving water. Indisputably. Didn't happened in the comfortably-distant past. The resulting 300-mile-diameter lake sat on the Four Corners basin (the water line is still visible, almost glaringly so), some seeping out north of the northeasterly lava butte extending from Mt Taylor's northern lava flow, some through the gap west of Grants NM, and flooding down to the Rio Grande. The Chaco people camped on a gully transporting the dregs through the complicated drainage pattern for that area, for some 1,000-1,500 years, extending a "road" 30 miles north, when their branch began running dry. Eventually, circa 1,250, they left, for greener, wetter, pastures, in NM, CO, KS, OK, and TX. This was the norm, for almost a thousand years, devastation, destruction, the Earth wracked by seismic forces and winds that howled like banshees, near-constantly. A maelstrom on land, on seas, changing Earth into something new, everywhere. I don't believe any landscape survived untouched, and some bear little resemblance to their former selves. Can't wait to hear your explanation for the limestone plug sitting atop the 3½ western Great Lakes (Michigan, Superior, Huron and half of Erie), where they've been mining salt underneath, for at least a century ...

San Juaquin Valley is called Central Valley. Never once have I heard it called Great Valley.

wow

Did the San Andreas fault move the transverse range farther apart from each other? Is it feasible to say that Mt Baldy was at one time right next to San Gorgonio Mt but the movement of the fault has since split them apart?

I wish there was someplace better to live than california

Hi, Dr. Patrich, could you please link the map you used in the Physiographic Provinces? Thank you.

Drive the PCH ! From sunset cliffs 92107 to shelter Cove King's range Humboldt County ! Bring your favorite girl.. Favorite surfboard and best bud doggie

31:38 Are we sure that the Laramide Orogeny occurred because the Farallon plate dipped beneath North America? Or was it caused by the formation of the Atlantic Ocean pushing North America westward over a subcontinent?

I live at 2000 ft elevation in the Simi Valley Hills, between Box Canyon and Corriganville in Simi Valley, part of the transverse range. The exposed rocks,( some as large as an apartment building and many as large as a house ) and material here apparently originated in a series of huge marine landslides 65 million years ago off the coast of present day Central America. Not many fossils here because it's not sedimentary , but a jumbled mass of silt and rocks up to 1000' ft thick at of the time during the landslides 65 million years ago. This is the time of the great dinosaur die off from an asteroid hitting in the Gulf of Mexico 65 million years ago. I wonder which happened 1st, the die off or the landslides, or were the slides caused by the asteroid?

Question, do the Mississippian & Pennsylvanian epochs have the same names in Europe or China?

#sedimentry #geology #geologist #sediment #mardavij #lake #crowley #river #mono #stonecolumns #ash #cross #california #usa #us #columns #mammoth #unitedstates #crowleylake #owens #deposition #bedding #bataviaexim #delta #available #woven #furnishings #cenozoic #furnishing #bhfyp

I suggest watching videos by Nick Zentner so you get 100% accurate information. There were many inaccuracies here.

The North American plate is moving Southwest, not West. As far as “upward”, did you mean North or did you mean “uplifted”?

You moved that billion year old rock , but , perhaps it wanted you to move it.

Please turn the music off! It's distracting.

I don't want to have to hear stupid music while listening to someone lecture.

Shave some of your sentences down. 6 minute intro🙄