Annual Report for ... with Accompanying Papers, Volumen23Published for the Iowa Geological Survey, 1914 |
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Annual Report for ... with Accompanying Papers, Volumen13 Iowa Geological Survey Vista completa - 1903 |
Annual Report for ... with Accompanying Papers, Volumen11 Iowa Geological Survey Vista completa - 1901 |
Términos y frases comunes
Aftonian Amer animal antlers base belonged bison bone border Bull Calvin Camelops canine cannon-bone cheek-teeth chert condyles crest deposits described diameter at middle digit Dolomite Elephas Elephas columbi Elephas primigenius enamel Equus complicatus extinct feet thick femur figure fore and aft fossil front of premaxillae genus Geological gravel gray grinding face grinding surface height horn-cores horse humerus Illinoian incisors Iowa Geol Iowan last molar Leidy length width Limestone loess lower end lower jaw lower teeth Mammut americanum mastodon measurements Megalonyx jeffersonii middle of length milk molar Moines molar Mylodon National Museum occipital outer face phalange plates Platygonus Pleistocene premaxillae premolar present probably protocone rear ridge ridge-plates river roots sand Sandstone Sangamon scapula seen Shale Shimek skeleton species specimen Surv Symbos tibia tooth total length township true molar tusk ulna University of Iowa upper molar upper teeth valley vertebræ worn writer
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Página 27 - Soil and loam (lowan loess) 4 Brownish yellow till (Illinoian) 20 Gray till (Illinoian) 10 Peat bed with twigs and bones (Yarmouth) 15 Gray or ashy sandy clay, containing wood (Yarmouth).. 12 Fine sand (Yarmouth) 16 Yellow sandy till with few pebbles (Kansan) 33 Total depth .. 110 It will be observed that the total thickness of the Yarmouth in this section is forty-three feet and that it is overlain by thirty feet of Jllinoian.
Página 152 - Pleistocene, horses occupied our country from the Atlantic ocean to the Pacific, and from the Great Lakes to the Gulf of Mexico and far down to into Mexico.
Página 368 - Gray was induced to examine the substance brought to him. The wood evidently consisted of branchlets of one, two and three years old, broken, quite uniformly, into bits of half an inch or so in length, with only now and then traces of the bark remaining on the wood. The wood was not at all fossilized, and was but slightly decayed. From the appearance of the branchlets examined, Prof. Gray inferred that they belonged to some coniferous tree or shrub, and probably to a kind of spruce or fir, rather...
Página 438 - Interior be, and is hereby, authorized, in his discretion, to accept the fee-simple title to a certain tract of land adjoining the Hot Springs National Park, Arkansas, described as being the west half of the southwest quarter of the southwest quarter of section 27, township 2 south, range 19 west, fifth principal meridian, containing sixteen acres, more or less, situated in Garland County. State of Arkansas, donated to the United States of America for use in connection with Hot Springs National Park...
Página xxix - Let it be answered that something more than petroleum-bearing rock is needed in order that oil may be obtained in quantities of commercial importance. It has been estimated by Professor Orton that the rocks beneath the surface over a very large part of Ohio contain at least 3,000,000 barrels of oil to the square mile, and yet not one gallon of this can be secured by the drill without the concurrence of at least two other conditions: (1) There must be a porous reservoir — sandstone or porous limestone...
Página 314 - I was in the western part of the state in 1867, 1 was informed that a few still remained in that, section, and that up to that time one or more had been killed every year as far south as Greene county. They were represented as being more common farther north, but that no herds were met with south of Sioux river and rarely east of the Missouri. Those found farther east were only stragglers from distant herds.
Página 43 - Malvern in Mills county. It is time for us to consider the geological distribution of the loess, especially in Iowa; and, so far as now appears, the loess (and likewise the drifts) may be better studied in Iowa than in any other state. It is evident that all of the loess does not belong to any one of the stages, glacial or interglacial, of the Pleistocene. In the Bulletin of the Laboratory of Natural History of the University of Iowa, volume V, page 368, Professor Shimek presented a section which...
Página 313 - ... State. In earlier times Charlevoix found " magnificent meadows" in Southeastern Iowa, on the Des Moines River, "quite covered with buffalo, and other wild creatures."** Major Long, in a trip eastward from Council Bluffs in 1819, found "their skulls and other remains on the plains of the Nishnabatona, and in one instance discovered the tracks of a bull; but...
Página 57 - Elephas columbi. 13. Near Smithland, Woodbury County. — On Little Sioux river, near Smithland, there are exposures of the Aftonian; but no particulars are given (Shimek, Bull. Geol. Soc. Amer., XX, p. 407). 14. Sioux City, Woodbury County. — Shimek (Bull. Geol. Soc. Amer., Vol. XX, p. 407) refers to Aftonian beds in the vicinity of Sioux City. Later (op. cit., XXI, p. 129) he described an exposure on the southeast quarter of the northwest quarter of section 13, township 89 north, range 48 west...
Página 1 - ... take pleasure in submitting to you the paper of Doctor Hay, entitled, "The Pleistocene Mammals of Iowa," and recommend that it be published as Volume XXIII, which is the Twenty-first Annual Report of the Iowa Geological Survey. Respectfully submitted, GEORGE F. KAY. THE PLEISTOCENE MAMMALS OF IOWA BY OLIVER P. HAY Research Associate of the Carnegie Institution of Washington TABLE OF CONTENTS PAGE Preface 7 The Pleistocene Period in Iowa 9 Introduction 9 Definition of the Pleistocene 10 Divisions...