Thank you, Eric. I keep trying to engage Kim Sordahl in this conversation because he has an architectual theory concerning the meaning of straight lines in nature AND
On Sun, Jun 23, 2024 at 6:57 AM Santafe <desm...@santafe.edu> wrote: > A few km or even tens of km does not seem long to me on geological scales. > > If we have slowly formed crustal rock, it could be fairly uniform. Then > if there is a bending stress on large scales from upwelling, the > least-disruption fracture would be a long straightish crack along the the > line perpendicular to the bending moment. Also, the material that goes > into that crack is presumably pretty liquid. So while it is okay to call > it “rock pressing up”, I think the image of liquid squeezing into a > fracture, shoving apart the sides, and putting maximal stress on the apex > which extends the fracture further, is more like the picture. > > And in whatever page somebody sent, they say the fracture that forms the > Galisteo dike shows evidence of having formed in that way, by chaining one > extension onto another, along the stress line where the faces are being > pushed apart. > > When this happens in the sea bottom, seismometers can listen to what > sounds like a zipping sound, as the crack from some new upwelling extends > and extends. I forget if it was a review by Karen von Damm or by Deb > Kelley in which I learned that. They have some name for it, which I am > forgetting. > > Of course, continental crustal rock is not the same as seabed basalts > (which are probably much more uniform), but even so, these are geologically > fairly small features we are talking about. > > Eric > > > > > On Jun 23, 2024, at 12:21 PM, Nicholas Thompson <thompnicks...@gmail.com> > wrote: > > > > Yes, Barry. I heard you but I had the bit in my teeth. I apologize. > Your point seemed, for me, to beg the question I was obsessed with at the > moment. Where did a straight line of such scale come from? Now, I can see > why a radar echo might be a straight line, but why a line of dirt? What > geological process produces linear dikes? I can under why a sediment > layers might be horizontal layers and I guess maybe, I can imagine that > the seam between two layers might get rotated ninety degrees and then > crack and then I imagine igneous rock might press up through that seam. Is > that the sort oft thing you had in mind? > > > > N > > > > Nick > > > > On Sat, Jun 22, 2024 at 5:38 PM Barry MacKichan < > barry.mackic...@mackichan.com> wrote: > > Several times on the Thuram Zoom call, I asked “Do you mean that > volcanic dike?” but I always seemed to say it just as someone else started > up. > > > > I have two memories about it. > > > > • The president of SAR conjured up the image of 3,000 Comanches > coming through the gap (Comanche Gap) as they came to Santa Fe in the 1770s > to agree to the truce with New Mexico — the truce that I believe enabled > the Spanish to hang on for the next 50 years in NM. The image has stuck > with me. > > > > • I thought it would be a great place to find petroglyphs, and > indeed it is. The density of the “No trespassing” signs along the road > increases as the square of the inverse of the distance from the point where > the road crosses the dike. They make it clear exactly where you should not > trespass. > > > > —Barry > > > > On 21 Jun 2024, at 11:18, Stephen Guerin wrote: > > > > Research last night on historical geologic maps got the name of that as > the "Galisteo Dike". composition and description in attachment. There is > one further with as well. Also known as the Creston or Comanche Gap > > > > https://galisteo.nmarchaeology.org/sites/creston.html > > > > > > Basic formation given this description (chatGPT): > > > > > > The Galisteo Dike is a geological formation characterized by its > composition and physical properties, indicating its formation through > volcanic activity. Here’s a detailed interpretation of its formation based > on the description provided: > > > > 1. **Composition Analysis**: The Galisteo Dike consists of > micro-monzonite, a fine-grained igneous rock. It contains a mixture of > minerals including plagioclase, potassium feldspar, titan-augite, > titaniferous biotite, apatite, and opaque grains in a glass groundmass. > This mineral composition suggests that the dike formed from magma that > cooled relatively quickly, preventing the formation of large crystals. > > > > 2. **Physical Description**: The dike appears as a dark gray, > fine-grained rock with a salt and pepper texture. It weathers to dark brown > or grayish brown and forms a wall-like rampart. This implies that the dike > is resistant to weathering and erosion, standing out in the landscape as a > prominent feature. > > > > 3. **Structural Features**: The dike is described as comprising many > right echelon overlapping segments varying in length from 200 to 1200 feet > and up to 18 feet thick. This pattern of overlapping segments indicates > that the magma was injected into pre-existing fractures in the surrounding > rock, likely under significant pressure, causing the fractures to open and > propagate in an en echelon pattern. > > > > 4. **Geological Age**: The dike is dated to 26.55 million years ago, > placing its formation in the Oligocene epoch. This was a time of > significant tectonic activity in many parts of the world, often associated > with volcanic and plutonic intrusions. > > > > ### Formation Process > > 1. **Magma Intrusion**: The formation of the Galisteo Dike began with > the intrusion of magma into fractures in the Earth's crust. The magma, > originating from deeper within the mantle, was rich in the minerals > described and had a high temperature, allowing it to flow and penetrate the > fractures. > > > > 2. **Cooling and Crystallization**: As the magma moved upward through > the fractures, it began to cool and solidify. The rapid cooling near the > surface resulted in the fine-grained texture of the rock, with minerals > crystallizing quickly in the groundmass of glass. > > > > 3. **Fracture Propagation**: The injection of magma caused the fractures > to propagate, leading to the characteristic right echelon overlapping > segments. This suggests that the fractures did not open uniformly but > rather stepped along the strike, with each segment forming as a discrete > intrusion event. > > > > 4. **Weathering and Erosion**: Over millions of years, the surrounding > rock may have eroded away, leaving the more resistant dike exposed as a > wall-like structure. The weathering of the dike itself results in the > observed dark brown or grayish brown coloration. > > > > In summary, the Galisteo Dike was formed by the intrusion of magma into > fractures in the crust, followed by rapid cooling and crystallization, > resulting in a fine-grained igneous rock with distinct mineral composition > and structural features indicative of significant volcanic activity during > the Oligocene epoch. > > ____________________________________________ > > CEO Founder, Simtable.com > > stephen.gue...@simtable.com > > > > Harvard Visualization Research and Teaching Lab > > stephengue...@fas.harvard.edu > > > > mobile: (505)577-5828 > > > > On Fri, Jun 21, 2024, 9:08 AM Nicholas Thompson <thompnicks...@gmail.com> > wrote: > > Dear Stephen, > > > > Thank you for prompting me to respond to this inquiry. I was having > some trouble getting the image to behave on my computer, and so was > reluctant to wade in. > > > > Indeed, just as nature abhors vacuums, she abhors straight lines, and > so any line as straight as this one requires a special explanation. To me, > that the line points southwestward toward the radar site NW of ABQ suggests > a radar artifact, perhaps the shadow or some distant hill. As we watched > the animated radar image, we could see a persistent weakness in the radar > echo along that line, even as the clouds crossed it. > > > > Speaking of abhorrent straight lines, during our conversation with > Frank, we spent quite a lot of time discussing another line, a berm of sand > that runs across the Galisteo Basin in roughly the same orientation, > perhaps 50' high?. I had noticed this feature on topo maps and always > assumed it was an old railway embankment. Frank, who knows the area well, > thought that idea was absurd. So, we were left with the puzzle of a highly > linear geological formation several miles long. > > > > Could it be that this geological straight line accounts for the straight > line cloud formation that Mr. Kadlubek sees? As the dry line breaks down > in anticipation of the SW Monsoon, moist air does indeed move northward, > following the river valleys up from TX. AT some point, it will be raised > enough that its moisture is condensed leading to the release of latent heat > and the further development of clouds. If the structure that raises it is > a straight line, then the clouds themselves will be arranged in a straight > line. We can see this effect often along linear coast lines as a sea > breeze front topped by (usually) fair weather cumulus. However, given all > the dramatic topography in the area, it's hard for me to imagine that this > low lying feature would be determining very often. > > > > I, too, live for the weather. I don't live for Face Book, however. So > if you have any way to put in touch with Mr. Kadlubek, he and I could > perhaps have coffee when I get back to Santa Fe in the fall. > > > > Yours faithfully, > > > > Nick Thompson > > "Behavioral Meteorologist" > > > > > > > > > > > > > > > > > > > > On Wed, Jun 19, 2024 at 7:06 PM Stephen Guerin < > stephen.gue...@simtable.com> wrote: > > Nick, > > > > It's your time to shine! Respond to Vince. > > > > In the comments, local knowledge refers to it as the "prison line" as > weather is different on either side of the prison on 14. > > > > > > -. --- - / ...- .- .-.. .. -.. / -- --- .-. ... . / -.-. --- -.. . > > FRIAM Applied Complexity Group listserv > > Fridays 9a-12p Friday St. Johns Cafe / Thursdays 9a-12p Zoom > https://bit.ly/virtualfriam > > to (un)subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > > FRIAM-COMIC http://friam-comic.blogspot.com/ > > archives: 5/2017 thru present > https://redfish.com/pipermail/friam_redfish.com/ > > 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/ > > -. --- - / ...- .- .-.. .. -.. / -- --- .-. ... . / -.-. --- -.. . > > FRIAM Applied Complexity Group listserv > > Fridays 9a-12p Friday St. Johns Cafe / Thursdays 9a-12p Zoom > https://bit.ly/virtualfriam > > to (un)subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > > FRIAM-COMIC http://friam-comic.blogspot.com/ > > archives: 5/2017 thru present > https://redfish.com/pipermail/friam_redfish.com/ > > > > 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/ > > > > -. --- - / ...- .- .-.. .. -.. / -- --- .-. ... . / -.-. --- -.. . > > FRIAM Applied Complexity Group listserv > > Fridays 9a-12p Friday St. Johns Cafe / Thursdays 9a-12p Zoom > https://bit.ly/virtualfriam > > to (un)subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > > FRIAM-COMIC http://friam-comic.blogspot.com/ > > archives: 5/2017 thru present > https://redfish.com/pipermail/friam_redfish.com/ > > 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/ > > -. --- - / ...- .- .-.. .. -.. / -- --- .-. ... . / -.-. --- -.. . > > FRIAM Applied Complexity Group listserv > > Fridays 9a-12p Friday St. Johns Cafe / Thursdays 9a-12p Zoom > https://bit.ly/virtualfriam > > to (un)subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > > FRIAM-COMIC > https://linkprotect.cudasvc.com/url?a=http%3a%2f%2ffriam-comic.blogspot.com%2f&c=E,1,tJTnzaUYVp9ehQJ6Fo-TgLdjhD7SiWEOm7eWJwJGUfIIxxEHkY6CROsG9S_m5kcgzYIc-wA-7clFX4ciz4e0QRf9Caat9s8Z7bbfXdk4MrXwRMwiZwhT-b9Ricg,&typo=1 > > archives: 5/2017 thru present > https://redfish.com/pipermail/friam_redfish.com/ > > 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/ > > > -. --- - / ...- .- .-.. .. -.. / -- --- .-. ... . / -.-. --- -.. . > FRIAM Applied Complexity Group listserv > Fridays 9a-12p Friday St. Johns Cafe / Thursdays 9a-12p Zoom > https://bit.ly/virtualfriam > to (un)subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > FRIAM-COMIC http://friam-comic.blogspot.com/ > archives: 5/2017 thru present > https://redfish.com/pipermail/friam_redfish.com/ > 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/ >
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