I live in the desert close to Tombstone AZ. We have something in our mountain that I believe may be mica. In my research on what it might be I was lead here. Your videos are awesome!
From 3:30 to 4:45, you list out what you call 'major components' in the Earth's crust, and then discuss the fact that elements such as P, S, B, F, Ba, etc. are somehow 'isolated' to specific minerals. But I don't get why you make that point. I get the impression you're discussing it because it has some impact on the Phase Rule, but you don't say what. Does it mean those elements aren't counted in the total number of components? or the total number of phases? or both? If every substance is counted as a 'phase' (VERY confusing, since 'phase' should mean solid-liquid-gas and nothing else), does that mean these isolated elements cancel out when added to the F = C+2 - P equation? In other words, starting with a basic formula F1 = (C1+2) - P1 adding barium to both the component count and the phase count would give the modified formula F1 = (C1+2+Ba) - (P1+Ba), resulting in the same final value for F1. Is *that* how these elements affect the rule? I'm hoping so, because otherwise I can't figure out why you're discussing minor components as something to be aware of.
Just found your channel and it is very helpful with revision, thank you!! I was wondering if you are able to do videos with a petrographic microscope and thin sections? or even explaining the optical properties with images of thin sections?
great video , but i have a question plz at invariant point it's only one T and P value to make it happen. but for the uni variant curve i see that temperature and pressure keeps changing not just pressure nor temperature only along the curve . i mean that's not a single variable that change but both t and p do (thus di variant ?.) may u tell me further description plz
Given its broad application, everyone should understand GEOLOGY - therefore this video has been indexed and a link added by DR-KNOW / iq-2k Information Services - roughly 650 videos have indexed for this series
Awesome video thank you! I feel as if "+2" in the phase rule should be replaced with n to avoid confusion on isothermal/isobaric diagrams! took me forever to figure that out.
Under pressure !!! My geology class is Awesome !!! Thank you !!!!!
Great! Ever read Gibbs' "Equilibrium of Hererogeneous Substances"? Tough & unbelievably great.
I live in the desert close to Tombstone AZ. We have something in our mountain that I believe may be mica. In my research on what it might be I was lead here. Your videos are awesome!
Amazing lesson!! Best regards from Brazil :D
Much better than Klein & Philpotts
From 3:30 to 4:45, you list out what you call 'major components' in the Earth's crust, and then discuss the fact that elements such as P, S, B, F, Ba, etc. are somehow 'isolated' to specific minerals. But I don't get why you make that point.
I get the impression you're discussing it because it has some impact on the Phase Rule, but you don't say what. Does it mean those elements aren't counted in the total number of components? or the total number of phases? or both?
If every substance is counted as a 'phase' (VERY confusing, since 'phase' should mean solid-liquid-gas and nothing else), does that mean these isolated elements cancel out when added to the F = C+2 - P equation? In other words, starting with a basic formula
F1 = (C1+2) - P1
adding barium to both the component count and the phase count would give the modified formula
F1 = (C1+2+Ba) - (P1+Ba), resulting in the same final value for F1. Is *that* how these elements affect the rule? I'm hoping so, because otherwise I can't figure out why you're discussing minor components as something to be aware of.
Perfect intro song
a huge shot in the dark, but does anyone here have a guide on how to make a PT graph , pseudosections with THERMOCALC?
wow my first intro to s.critical h20.....Excellent Vid! Thanks
Note that one graph shows s. critical CO2. Any fluid can go s. critical. and they are all miscible (mixable).
Just found your channel and it is very helpful with revision, thank you!! I was wondering if you are able to do videos with a petrographic microscope and thin sections? or even explaining the optical properties with images of thin sections?
We do have camera systems on our microscopes and are digitizing our thin sections so yes I do hope to go there eventually.
great video , but i have a question plz
at invariant point it's only one T and P value to make it happen.
but for the uni variant curve i see that temperature and pressure keeps changing not just pressure nor temperature only along the curve . i mean that's not a single variable that change but both t and p do (thus di variant ?.) may u tell me further description plz
Thanks Ahmed. Yes, at the invariant point you have no degrees of freedom and it can only take place at a single T and P.
Opening song got me
Thank you for this video.
Given its broad application, everyone should understand GEOLOGY - therefore this video has been indexed and a link added by DR-KNOW / iq-2k Information Services - roughly 650 videos have indexed for this series
Raymond tan...rip😅😅😅😅😅
Awesome video thank you! I feel as if "+2" in the phase rule should be replaced with n to avoid confusion on isothermal/isobaric diagrams! took me forever to figure that out.
Amazing explanation of degrees of freedom too!