SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY, 1021. 



Ellenbiirger limestone. The location of these 

 wells is shown on the accompanying map (fig.l) . 

 The distance between them is about 45 miles. 

 The section in the Seaman well is much 

 thicker and much more sandy than the section 

 in the Kudd well. This accords with the belief 

 that the land mass from which the sediments 



DISCUSSION AND CORRELATION OF THE SEA- 

 MAN WELL AND THE RUDD WELL. 



INTRODUCTION. 



The following discussi(m will concern itself 

 only with the facts brought out in the graphic 

 logs (PI. I, in pocket) and with additional 



ARCHER 



\ VOUNG J 



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'MONTAGUE 



■Jacksboro I 



JACK j W I S E 



X > . 



SEAMAN WSLdS^ (W'^^'' ■ 



Albary I ...c" I "^\ ' <!X,\ \yveatherfbna 



- y. O I .-■• I • . , / '. I O 



0/ S : A CK ELFO RO . STEPy-ENS ' P"A LO'. ^RLWTQ . PARKER 



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FniUKE 1.— nulline map 



^hl)\ving ihf pnsilion of ttu- St^aman and Rudd w-'W^. nnrth-ccutrai To.xas, and their relation to the "Bend arch." 

 Copied from Texas I'aiv. Bull. 1n49, map facing p. 32, 1918. 



of the ''Bend scries ' wore derived lay some- 

 where to the northeast of the north-central 

 Texas arca."^ 



'"The jjrobable p(»sition of this land mass was brought out by F. B. 

 Pluramer in a jiaper read before the Amerieaii Association of Petroleum 

 Geologists at its meeting in Dallas, Tex., in Marcli, 1919, but in the pub- 

 lished version of that papej the only reference I find to it is in the discus- 

 sion by David White (Am. Assw. Petr. Geologists Bull., vol. 3, p. U9, 

 1919). It is also disni.ssed in detail and the Uterature relating to it is 

 fully reviewed in an article by H. D. Miser, on "Llanoria," to be 

 I»ublisheil in the ,\merican .louriKil of Science. 



facts about the lithology tnat seem important 

 for the correlation but could not be brought out 

 in those logs. For a knowledge of the general 

 character of the beds the reader is referred to 

 the ..very clear, concise, and well-illustrated 

 paper by Udden and Waite." 



•1 Udden, J. A., and Waite, V. V., Microscopic characteristics of the 

 Bond and the EUonburger limestones, 26 pp., mimeogra[)hed and illus- 

 trated by photographic prints (Austin, Texas Bur. Eeou. Geology aiid 

 Teehnology. 1919|. 



