The deep boring at Spur . Plate 13. A. Horizontal section of dolomite from near the depthof 4070 feet. The crystals are of uniform size. X 80. B. Horizontal section of dolomite from near the depth of 4085 rock shows some streaks of bituminous material which appeardark in the section. X 80. ^^^I^BI^^^^^S^l 1- i ^ ^Iw JH K j^H^^^^^^^^^^^NBBS^^^^gKaJB Lj^^^^^ES K |P jin Mft^N ^^WHSaMfy Jfi^ » ^^VHPHRHI ^^^^1 ^^^ 1 Plate 14. Horizontal section of limestone from near the depthof 4285 feet. The light areas are clear calcite, filling crinoidal andother organic fragments. X ?—h Cr&g
The deep boring at Spur . Plate 13. A. Horizontal section of dolomite from near the depthof 4070 feet. The crystals are of uniform size. X 80. B. Horizontal section of dolomite from near the depth of 4085 rock shows some streaks of bituminous material which appeardark in the section. X 80. ^^^I^BI^^^^^S^l 1- i ^ ^Iw JH K j^H^^^^^^^^^^^NBBS^^^^gKaJB Lj^^^^^ES K |P jin Mft^N ^^WHSaMfy Jfi^ » ^^VHPHRHI ^^^^1 ^^^ 1 Plate 14. Horizontal section of limestone from near the depthof 4285 feet. The light areas are clear calcite, filling crinoidal andother organic fragments. X ?—h Cr> C/- en s: r=5 cr Cr> —* - ^ :^ cs C=7 C^ rs C~:> :Z3 c^ =» . J, :3 =S <7Q C^ =3: i:^ X X; ^ r5 c^ C^ Ci-
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Keywords: ., bookauth, bookcentury1900, bookdecade1910, bookidcu31924004622084
