This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ... the latter region the west flank is thought to slope abruptly into the trough, but drilling necessary to determine the length and angle of the slope has not been done, and even the depth of the trough can only be inferred from holes located some distance from the crest. Because of this indefiniteness the structure ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ... the latter region the west flank is thought to slope abruptly into the trough, but drilling necessary to determine the length and angle of the slope has not been done, and even the depth of the trough can only be inferred from holes located some distance from the crest. Because of this indefiniteness the structure contour maps showing the anticline in the southern part of the State possibly delineate a more gentle structure than actually exists, as possibly the trough of the fold is crowded closer toward the crest than is shown on the maps. On the other hand the present indefiniteness concerning the position and form of this west slope leaves room for the chance that somewhat adventurous drilling adjacent to, but west of, the main field may discover a terrace or even a secondary crest in places west of the present supposed line of maximum elevation and crest of the anticline. Toward the southern part of the fold where the structure becomes somewhat indefinite, this is more likely to be the case than it is in (."lark or Crawford Counties. The Allendnle pool may be cited as an example of a field located essentially by wildcatting west of what was once supposed to be, and possibly is, the main crest of the anticline. Structure maps of the pre-Pennsylvanian strata In the oil fields have been constructed for the Tracy, Kirkwood, and McClosky sands. The two former sands are of the Chester group and the latter is an oolitic limestone near the top of the Mississippian "Big Lime" and representing stratigraphically the Ste. Genevieve limestone. These maps are applicable only to the main pools in Lawrence county and only the map based upon the altitude of the Kirkwood sand can be said to be definitely established. The structure of this sand in Lawrence...
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Add this copy of The Structure of the La Salle Anticline... to cart. $40.03, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2012 by Nabu Press.
