Report of progress 1874-1889, A-Z .. . ws a beautiful wine color by trans-mitted light. It congeals very rapidly, and great difficultyis experienced by the pipe line engineers in pumping itduring cold weather. The description illustrated by Fig. 124, is a very nearlycorrect section of the measures penetrated by these wells :Top of Ferr. Lime, to top of 3d Sand, . .1205 to 1210Top of 1st Sand to base of 3d Sand, . 313 Top of 1st Sand to top of 50 rock, . ( 156 ?) 146Top of 50 rock to base of 3d SS, . . ( 157?) 167 About 350 to 400 feet of sandy measures, belonging tothe Mountain Sand group (Con
Report of progress 1874-1889, A-Z .. . ws a beautiful wine color by trans-mitted light. It congeals very rapidly, and great difficultyis experienced by the pipe line engineers in pumping itduring cold weather. The description illustrated by Fig. 124, is a very nearlycorrect section of the measures penetrated by these wells :Top of Ferr. Lime, to top of 3d Sand, . .1205 to 1210Top of 1st Sand to base of 3d Sand, . 313 Top of 1st Sand to top of 50 rock, . ( 156 ?) 146Top of 50 rock to base of 3d SS, . . ( 157?) 167 About 350 to 400 feet of sandy measures, belonging tothe Mountain Sand group (Conglomerate Series, ) is found: the Mountain Sand being 200 feet thick,with no shaly or slaty partings. Twenty-five feet beneath ALLEGHENY TOWNSHIP. V. 139 it is a loose-grained, salt water rock, from fifteen to twenty-five feet thick. Near the middle of the interval from this rock down tothe First Sand, a shelly sand or a band of shells is fre-quently struck. This is probably the 3d Mountain Sandof the Oil Creek region. The Oil Sand Group. The First Sand. This is composed of ten feet of good whitesand, beneath which is an alternation ofslate, shale, shells, and grey sandstone tothe base of the rock. Near the bottom ofthe series, a good loose sand is occasionallypassed through, and is designated by thename: 30 foot rock. Total thicknessof group, . . 100 ft. The Forty Foot Red Rock consists of analternation of slate and shale, with a fewintercalated sandy bands. The red rockusually found in the lower part of this in-terval, is sometimes forty feet thick, andis nearly always quite soft. Thickness ofinterval, 46 ft. The Fifty Foot Rock is a good, coarse,pebbly, white sandstone, and probably cor-responds to the Oil Creek Second sand. Itproduces, in small quantities, an oil similarto the typical Second Sand oil, and in some of the wells theyield from this horizon has been as high as four or five bar-rels per day. It is the gas rock of the district, yieldingin nearly
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Keywords: ., bookcentury1, bookdecade1870, booksubjectcoal, booksubjectgeology
