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The comments to the other question have already alluded to some physical answers that also come out of the lab: One might think that the heaviest elements in primordial Earth should have all sunk into the core by now. But that's not actually the case: For example, uranium with a density 2.5 times that of iron (19.1 vs 7.9 g/cm3) has an abundance of about 4 ...


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Short answer: yes, most of our knowledge is not from seismics and geomagnetism, but from experiment and measurements, deductions from geochemistry and -physics, material science and physics in general (besides the already mentioned measurements of earth's gravity, but the variations are rather connected to mantle convection, water storage, etc. than the core)...


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Faults are everywhere, mostly sealed, active or not. The question is how do the hot fluid conduits stay open in some places and not others. I am currently studying thermal (hot and others) spring distributions in many regions of the world, as well as fault zones, and hot spring conduits in fault zones. The fluid-rock interaction, and discrete flow channel ...


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It depends on what purpose you need the data for. This site https://wiki.seg.org/wiki/Open_data gives several sources of data. If it must be land acquisition (as opposed to marine) data then the Poland 2D, Teapot dome 3D, or Stratton 3D surveys might be of interest. These free data sets are for pedagogical/research purposes, so if you'd like to 'strike-...


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If you are flexible with your choice in software, I would strongly recommend using Bob Herrmann's Computer Programs in Seismology for this work. http://www.eas.slu.edu/eqc/eqccps.html. This software package has nice workflows for doing ambient noise tomography and will save you a lot of time over python. For example, you can relatively quickly do group/phase ...


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Crossline coverage is 1/2 the spread width. A survey is usually designed to deliver perfectly abutted crossline coverage (overlapping the spreads as the previous correspondent said). Common midpoint (CMP) bin width is 1/2 the cable spacing and is sampled by one source-to-receiver ray path so crossline fold by definition is one. Easiest thing is to draw a ...


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