Slide #22
Microscope Magnification : 40X
Approximated Field Width : 2.5mm
1573.5 V The oil saturation (So) is 21.9. Slides 21 and 22 are at 40X, from center of section. Permeability and Grain Density are the same in 1572.4 and 1573.5, yet So is very different.
Slide #23
Microscope Magnification : 100X
Approximated Field Width : 1mm
1631.5 V Plane Polarized Transmitted Light shows vein filling, it is gypsum (probably not anhydrite. The birefringence in optical is too low, also temperature is also too low for anhydrite.
Slide #24
Microscope Magnification : 100X
Approximated Field Width : 1mm
1631.5 V XPTL shows vein filling, low birefiingence.
Slide #25
Microscope Magnification : 100X
Approximated Field Width : 1mm
1631.5 SEM photo of gypsum in vein
Slide #26
Microscope Magnification : 100X
Approximated Field Width : 1mm
1631.5 H Mixed light source: Reflected to show pyrite; plus transmitted; shows silica and pyrite replacement of carbonate tests. Uniform appearance in horizontal section is very different from vertical cut (slides 27,28).
Slide #27
Microscope Magnification : 100X
Approximated Field Width : 1mm
1631.5 V Plane Polarized Light. Slides 27 and 28 are the same region, 2mm across showing change from large angular detrital grains, rich in hydrocarbons; finer-grained with segregations with an undulating structure; to cherty, with little hydrocarbons.
Slide #28
Microscope Magnification : 100X
Approximated Field Width : 1mm
1631.5 V Plane Polarized Light. Slides 27 and 28 are the same region, 2mm across showing change from large angular detrital grains, rich in hydrocarbons; finer-grained with segregations with an undulating structure; to cherty, with little hydrocarbons.
Slide #30
Microscope Magnification : 100X
Approximated Field Width : 1mm
1631.5 SEI. What is significance of some pores empty (bright, charging) and others with filling?
Slide #52
Microscope Magnification : 100X
Approximated Field Width : 1mm
1631.5 Plane Polarized Light. Matrix of fine grained carbonate (?), fossils silicified (?) and some hydrocarbon in small segregations. Is this true? what happed to cause these compositions?
