Identifier: geologyundergrou00veat (find matches)
Title: Geology and underground water resources of northern Louisiana
Year: 1906 (1900s)
Authors: Veatch, Arthur C. (from old catalog)
Subjects:
Publisher: (n. p.)
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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nd Mandeville, on the vSt.lyouis. Iron Mountain and Southern Railway, in Arkansas (PI, XXVIl). Occasionally some of the large animals which then lived in thisportion of the country wandered into these marshes and becamemired. Among the bones preserved in this way are species ofthe Mastodon, and Elephas, of the Mylodon, Megalonyx, Megath-erium, and Glypiodon, large animals akin to the sloths, and arm-adillos^ now found in South America, a camel, a large elk, and aprehistoric horse but little different from the domestic horse oftoday. 73Third Ann. Rept. Geol. Survey L/Ouisiaua for 1871, 1872, p. 177; Geol,Survey lyouisiana, Rept. for 1899 (1900), pp. 190-191. 74See Geol. Survey Louisiana, Rept. for 1899 (1900) pp. 113-114, 189-192;Third Ann. Rept. Geol. Survey Louisiana, for 1871, 1872, pp. 185-190. W a n tfl > w O ►ti 1^ w r«5 > z •1v n >-! % K H c w &. o o ^ r1 r-^ M W -1 W n 50 fH 2! - 1-1 > o ^ 5d ir ?1 «
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vhatch) UnderCtround Water of Northern La These deposits areall essentially fluvia-tile or estuarine inorigin, and the pres-ent level tops of theirremnants, which formterraces along thesides of the principalvalleys (fig. 23), indi-cate that this depres-sion was not over 100feet below the presentlevel. On Red Riverthe height of the ter-races is seldom over60 feet above the pres-ent bottom lands, andin the Mississippi Val-ley, near the Arkan-sas-Louisiana Stateline, it ranges from 60to 80 feet. To thenorth the terraces be-come lower, and insoutheastern Missourithey have an elevationof but 20 to 30 feet,a variation which isperhaps due to recentmovements eitheralong the line of theAngelina- Caldwellflexure,the Red River-Alabama Landingfault, or both (PLxxxvii). These clay terrace 75Marbut, C. F., Univ.of Missouri Studies, vol.I, No. 3, 1902, p 16.

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