GEOLOGY AND PALEONTOLOGY OF CANAL ZONE


No. USGS used in Cenozoic Field this No. No. report


No. USGS used in Cenozoic Field this No. No. report


106 107 108







108a 108b 108c 109 110


6012c 6012d


 Description of locality



 CULEBRA FORMATION, GAILLARD CUT,
 CANAL ZONE-continued

 Near canal station 1759. D. F. MacDonald and T. W. Vaughan, 1911.
 Plotted on place 2. [For stratigraphic sections including localities 6012a to 6012e inclusive, see MacDonald, 1919, p. 536-537 and for
 general locations see plate 154.]
 Near canal station 1768. Calcareous
 sandstone. D. F. MacDonald and T. W. Vaughan, 1911. Also larger Forameinifera. [Type locality of Miogypsina cushmani.) Plotted on
 plate 2.
 West side of Gaillard Cut, canal station
 1759. Dark gray calcareous mudstone 1.5 meters above water level.
 See stratigraphic section, page 35 J. R. Schultz and W. P. Woodring, 1947. Smaller Foraminifera. Not
 plotted.
Same locality, float 7.5 meters below
 uppermost calcareous sandstone of Culebra formation. J. R. Schultz and W. P. Woodring, 1947. Not
 plotted.
East side of Culebra [Gaillard] Cut,
 about three-fourths mile (1.2 kilometers) northwest of Gold Hill.
 Sidney Paige, 1908. [Presumably near canal station 1760.] Not
 plotted.
West side of canal, canal station 1760
 D. F. MacDonald, 1911. Not
 plotted.
East side of Culebra [Gaillard] Cut,
 opposite Culebra. Pebbly calcareous sandstone. D. F. MacDonald and T. W. Vaughan, 1911 (MacDonald, 1919, p. 536, plate 154). [Canal station 1762.] Plotted on plate 2. East side of Gaillard Cut, canal station
 1754, about 60 meters northeast of edge of canal and about 100 meters northwest of northwest edge of Culebra Extension slide. Tuffacrous sandstone and calcareous concretions in transition zone between Culebra and Cucaracha formations. J. R.
 Schultz and W. P. Woodring, 1947.
 Plotted on plate 2.
East side of Culebra [Gaillard] Cut,
 canal station 1755, upper part of Culebra formation. D. F. MacDonald, 1913. Not plotted; approximately same as locality 110.


llb 1 16888 1 25a


112 112a 113







114 115







115a


16910 16927 6011 5860 6505 6515


111 llla


122


16887


25


 Description of locality



CULEBRA FORMATION, GAILLARD CUT.
 CANAL ZONE-continued

Stanford University locality 2701, west
 side of Gaillard Cut, canal station 1754, altitude 140 feet (42.5 meters) T. F. Thompson, 1943. Plotted:
 on plate 2.
West side of Gaillard Cut, canal station 1755 and 30 meters northwestward along strike, about 45 meters.
 southwest of edge of canal. Cal-,.
 careous concretions in sandy siltstore corresponding to top of bed 13 ofl section on page 35. J. R. Schultz and W. P. Woodring, 1947. Noe
 plotted; same as locality 111.
West side of Gaillard Cut, canal station
 1754, from dirty sandstone brought to surface by test explosion, evi dently from base of bed 13 of section on page 35. J. R. Schultz and' W. P. Woodring, 1947. Not plotted:
 same as locality 111a.
West side of Gaillard Cut, canal station
 1759, about 30 meters southwest of edge of canal. Basal part of bed 13 of section on page 35. J. R. Schultz and W. P. Woodring, 1947. Plotted
 on plate 2.
Same locality, top of bed 13 of section
 on page 35. J. R. Schultz and W. P.1
 Woodring, 1947. Not plotted.
East side of Culebra [Gaillard] Cut,
 near canal station 1845, between Paraiso and Gold Hill. Foraminiferal limy sandstone. D. F. MacDonald and T. W. Vaughan, 1911 (MacDonald, 1919, p. 535, pl. 154).,
 Plotted on plate 2.
West side of Culebra [Gaillard] Cut,
 canal station 1847 plus 25 feet (6.2 meters). D. F. MacDonald, 1913.
 Plotted o plate 2.
West side of Culebra [Gaillard] Cut,
 near canal station 1860. Lower part of limy sandstone. D. F. MacDonald, 1913. Also larger Foraninifera: Miogypsina intereedia (Drooger, 1952, p. 36). Plotted on plate 2.
West side of Culebra [Gaillard] Cut,
 about one-third mile (500 meters) north [northwest] of Paraiso. D. F.
 MacDonald, 1913. Not plotted;
 apparently close to locality 115.


16951 4897 5859 6013 16886


la






















5


110a 1 6508