Photomicrographs - Buttonwillow Field (10 photos)
Well: National Royalties 1
FRAME 1-28. McLure? sandstone from Buttonwillow deep (National Royalties 1, 16117-21'). Note tightness of sandstone with quartz overgrowths and rhombic carbonate cement. Field of view 2.lmm. Crossed Nicols.
FRAME 1-29. McLure? sandstone from Buttonwillow deep (National Royalties 1, 16117-21'). Note patchy rhombic calcite? cement, andesitic rock fragments and twinned volcanic? plagioclase. Field of view 2.lmm. Crossed Nicols.
FRAME 1-30. McLure? sandstone from Buttonwillow deep (National Royalties 1, 16117-21'). Note flakes of silica? infilling porosity in center of photo. Note also calcite (upper left). Field of view 0.55mm. Crossed Nicols.
FRAME 1-31. McLure? sandstone from Buttonwillow deep (National Royalties 1, 16117-21'). Note flakes of silica? infilling fracture in rock fragment and porosity. Note also calcite cement and quartz overgrowth. Field of view 0.55mm. Crossed Nicols.
FRAMES 1-32, 1-33. McLure? sandstone from Buttonwillow deep (National Royalties 1, 15141-48'). Note albitic fracture fills (white interference color) and partial replacement of plagioclase. Note andesitic rock fragments in upper left and lower right. Field of view 0.55mm.
Crossed Nicols.
FRAME 1 -34. McLure? sandstone from Buttonwillow deep (National Royalties 1, 15141-48'). Note albitic fracture fill in plagioclase grain (bottom center) and pore-lining chlorite throughout sample (e.g. right center to upper right). Field of view 0.55mm. Crossed Nicols.
FRAME 1-35. McLure? sandstone from Buttonwillow deep (National Royalties 1, 15141-48'). Note abundant andesitic (left half of photo) and siliceous (upper right) volcanic rock fragments. Field of view 2.lmm. Crossed Nicols.
FRAME 1-36. McLure? sandstone from Buttonwillow deep (National Royalties 1, 15141-48'). Note abundant andesitic rock fragments, zoned volcanic plagioclase (center), and patches of calcite cement (upper left). Field of view 2.lmm. Crossed Nicols.
FRAME 1-37. McLure? sandstone from Buttonwillow deep (National Royalties 1, 15141-48'). Note abundant andesitic rock fragments, coarse calcite cement (center and upper right), and chlorite pore fill (right margin). Field of view 2.lmm. Crossed Nicols.
Well: KCL 27-6
FRAME 2-0. Reef Ridge? sandstone from Buttonwillow field (KCL 27-6, 12703-19'). Note twinned plagioclase, andesitic rock fragments (top center) and dolomite? rhombs attatched to rock fragment. Field of view 2.lmm. Crossed Nicols.
