Photomicrographs - Tejon Grapevine Field (8 photos)
Well: CCMO 4-35
FRAME- T-0. Vedder sandstone from Tejon Grapevine field (CCMO 4-35, 11155-65'). Note optically continuous laumontite cement and replacement of plagioclase in left half of figure. Clay coats on detrital grains are preserved. Field of view 1.05mm. Crossed Nicols.
FRAME 1-14. Vedder sandstone from Tejon Grapevine field (CCMO 4-35, 11155-65'). Note laumontite cement (upper right and right center) and abundant feldspar grains. Field of view 2.lmm. Crossed Nicols.
FRAMES 1-15, 1-16. Vedder sandstone from Tejon Grapevine field (CCMO 4-35, 11155-65'). Note optically continuous laumontite cement (left half of photo), heavy minerals enclosed by laumontite (left center and upper right), and abundant twinned plagioclase. Field of view 2.lmm. Crossed Nicols.
FRAME 1-17. Vedder sandstone from Tejon Grapevine field (CCMO 4-35, 11458-73'). Note carbonate and zeolite cement and replacement within same sandstone. Carbonate occurs in upper half of photo, laumontite appears in lower right quadrant. Field of view 2.lmm. Crossed Nicols.
FRAME 1-18. Vedder sandstone from Tejon Grapevine field (CCMO 4-35, 11458-73'). Note carbonate and zeolite cements within same sample. Rhombic carbonate cement occurs in top center, whereas laumontite is restricted to lower right quadrant. Field of view 2.lmm. Crossed Nicols.
FRAME 1 -19. Vedder sandstone from Tejon Grapevine field (CCMO 4-35. 11458-73'). Note laumontite (white interference colors in right center) replacing carbonate cement in, center and bottom center of photo. Near center a corroded remnant of carbonate is seen completely enclosed by laumontite. Field of view 1.05mm. Crossed Nicols.
FRAME 1-20. Vedder sandstone from Tejon Grapevine field (CCMO 4-35, 11458-73'). Note optically continuous laumontite replacing plagioclase (center and right center) and carbonate (left center) but not heavy minerals (top center and center right). Field of view 1.05mm. Crossed Nicols.
FRAME 1-21. Vedder sandstone from Tejon Grapevine field (CCMO 4-35, 11458-73'). Note coexistence of optically continuous laumontite cement and carbonate (top center). Field of view 1.05mm. Crossed Nicols.
