...intervening synclines are liable to be barren of oil and gas. For this theory, as for others, it is necessary that the oil-bearing stratum shall be capped by a practically impervious one. Such anticlinal waves are found in the oil fields of the Appalachians, Indiana, western Ohio, and many...

...and character. His conclusions are as follows : "In dry rocks the principal points of accumulation of oil will be at or near the bottom of the syncline or at the lowest point of the porous medium, or at any point where the slope of the rock is not sufficient...

...and character. His conclusions are as follows: "In dry rocks the principal points of accumulation of oil will be at or near the bottom of the syncline or at the lowest point of the porous medium, or at any point where the slope of the rock is not sufficient...

...and character. His conclusions are as follows: "In dry rocks the principal points of accumulation of oil will be at or near the bottom of the syncline or at the lowest point of the porous medium, or at any point where the slope of the rock is not sufficient...

...and character. His conclusions are as follows : "In dry rocks the principal points of accumulation of oil will be at or near the bottom of the syncline or at the lowest point of the porous medium, or at any point where the slope of the rock is not sufficient...

...folded areas the gas collects at the summit of the fold, with the oil immediately below, on either side, followed by the water (Fig. 28). It is, of course,...oil accumulates at the upper level of saturation. 88 In a tilted bed which is locally porous and not so throughout, the oil, gas, and water may arrange...

...fold (anticline), with the oil immediately below, on either side, followed by the water (Fig. 341). It is of course necessary that the oil-bearing stratum...oil will be at or near the bottom of the syncline (downfold) or lowest portion of the porous bed If the rocks are partially saturated with water, then...