Winchell, N. H.

English

University of Minnesota, Morris (UMM): Digital Well

Journal of the Minnesota Academy of Science Volume 1 Number 3 Article 7 1876 Notes on the Deep Well Drilled at East Minneapolis, Minn., In 1874-1875 N. H. Winchell Follow this and additional works at: https://digitalcommons.morris.umn.edu/jmas  Part of the Soil Science Commons Recommended Citation Winchell, N. H. (1876). Notes on the Deep Well Drilled at East Minneapolis, Minn., In 1874-1875. Journal of the Minnesota Academy of Science, Vol. 1 No.3, 187-189. Retrieved from https://digitalcommons.morris.umn.edu/jmas/vol1/iss3/7 This Article is brought to you for free and open access by the Journals at University of Minnesota Morris Digital Well. It has been accepted for inclusion in Journal of the Minnesota Academy of Science by an authorized editor of University of Minnesota Morris Digital Well. For more information, please contact skulann@morris.umn.edu. Nolts on Well. KOTES ON THE DEEP WELL DRILLED AT EAST MIN-NEAPOLIS, MINN., IN 1874-1875· BY N. H. WINCHEl.L. lUTUIUL StJllFACJI 0~ OBO'Ul<D. The accompanying diagram of the strati- passed through, with the designa-tions of the strata, was furnished by Col. J. B. Clough, City Engineer, in who?e charge the work ~vas put by the City Council when mo~ey was appro-priated to aid the enterprise. This occurred at the depth of about I,ooo ' feet. 1 .. .. -2i Blue. a! Willie. ~ Red. ~::; Gray. 8~ WhiiP. 7 ~· mue 1! White. ---· tf Blue. 10 .. S.Udy.-ll~ White, llx s-ty. 13(: '\\bite. -It~ Bed l5 "' Bed. ii Band. Li..-tone. Sando!toDB. Lillll!lltoDe. Llmel!t.one. a..>dltoD8 • Shale. .. Sandstone. Shale. - ·LimMtone. Sandstone. Marl. Sandstone. Marl. Sandstone! .. ... ~ --~ '"' -... ... 8112 -co ... ! I! ! 8&7 !i tiS s ... ;; ::: ~ No. 1. This sand is the well-known ltZss loatn of the Mississippi bluffs. Though it is represented here as hav-ing a thickness of 42 feet, it shows less than one-half that thickness along the river bluff opposite the . site of the well, less than 15 rqds distant. It is her~ underlain by a heavy deposit of boulder-day drift. It is presumable that this boulder-day, whicli is itselt rather sandy, was penetrated without the knowledge of the workmen, since it' is seen to extend as far from the river as the site of the well along Cen-tral Avenue :and on other streets, and is struck uniformly over the East Division of the city in digging wells at the depth of ten to twenty feet. No. 2 is the Lower Trenton Lime-stone, embracing some layers of green shale, and is that which causes, in con-junction with the St. Peter sandstone (!l{o. 3), the Falls of St. Anthony. No. 3 is known as the St. Peter Sandstone. Its thickness, as here de-veloped, is greater than observed at any other point in Minnesota. It is Digitized byGoogle r88 Ngtes tm Well. generally accredited with a thickness of about 152 feet, but here shows 164 feet. It is a purely white sand with very slight cement and very little variation in texture or grain. No. 4 is known as the Sluz/tQpee Limesttme. It has been placed as the uppermost member of the great Lower Magnesian Formation of Dr. D. D. Owen, but perhaps the St. Petec should be regarded as the uppermost member of that formation. Its color here appears to be nearly the same as seen at Kasota, where it is largely wrought and sold under the name of Kasota Sttme. Its thickness, roa feet, is greater than has been observed at any other point. No. 5 is designated a gray limestone with a thickness of sixteen feet. It is a new feature in the lithology of the Lower Magnesian and may belong to the Shakopee. No. 6. Below the gray limesttme is a white sandstone similar to the St. Peter above, with a thickness of u6 feet. This can be identified as the Jordan Sandstone, so named from Jordan village on the Minnesota river, above Skakopee, where it was first recog· nized as a distinct portion of the Lower Magnesian. No. 7· Which is here denominated a 6/ue sluJ/e, having a thickness of u8 feet, has not before been recognized as a portion of the Lower Magnesian. It OCC\lpies the place, in order of strati-fication, of the St. Lawrence limestone, but is not so thick. No. 8 is likewise an unknown stratum. No. 9 in like manner has never before been discovered. It is highly probable that,~aken together, Nos. 7, 8. 9 and 10 are the actual equivalents of the St. Lawrence Limestone in point of stratification. modified in character and increased in thickness by proximity to the ancient Laurentian belt that lies but few miles further north. This would indicate the early origin of the Minnesota spur of the 1 old Laurentian belt of the center of North America, as a shore line alo!Jg which shale and sand were accumulating at the same time that limestone was being formed at points more remote, in deeper water. No. 10 pertains to the same horizon and bears a stronger re-semblance to the St. Lawrence. Nos. u, 12 and 13 represent the St. Croix sandstone, but it is of less thickness than where seen in the Mississippi bluffs. No. 14 may represent the "Lingula flags," or the upper portion of the Potsdam sandstone so-called. No. rs was rather clayey to k designated, unqualifiedly, a sandstone. It is undoubtedly the upper portion of the great series of marls and sands that characterize this horizon in Minnesota, as made known by Dr. Owen, and by him and others referred to the Digitized by Coogle Coucology. age of the Lower Potsdam Sandstone of New York. It seems to be the same fonnation in which the salt well, drilled at Belle Plaine, stopped at the depth of 710 feet, though much less com-pact than where it is exposed at the surface in southwestern Min-nesota. It is the same formation as the rock that embraces the well-known "pipestone" or Catlinit~ of Minnesota. Tlz~ llnivusity of Minnuota, Minn~apolis, May 25. I876. REPORT OF THE COMMITTEE ON CONCHOJ. .. OGY. BY A. F. ELLIOT. FAM. VALVATIDJE. Gm. Valva/a. 0. F. Mull. sp. V. tricarinata. Say. F '"'· VJVIPARID)E. Gm. Vi11ipara. Lam. sp. V. subpurpur~a. Say. Gm. Melanfho. Bowditch. sp. Jl. duisa. Say. var rufa Hald. F AM. LIMN:EID)E. Sub. Fam. LimntEintE. Gm. Limna~a. Lam. sp. L. stagnalis. Say. Subgenus Limnophysa. Fitz. sp. L. rtjl~xa. Gm. Physa. Drapamaud. sp. P. gyrina. Say. sp. P. Mf~rostropha. Say F A.M. PLANORB!N)E. Gm. Planorbis. Guettard. Subgenus Planorbtlla. Hald. sp. P. campanulatus. Say. Subgenus Hdisoma. Swains. sp. P. trivQlvis. Say. sp. P. bicarinalus. Say. Subgenus Gyraulus. Agassi~o sp. P. dejlutus. Say. sp. P. parvus. Say. Digitized by Coogle 

Notes on the Deep Well Drilled at East Minneapolis, Minn., In 1874-1875

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Notes on the Deep Well Drilled at East Minneapolis, Minn., In 1874-1875

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