Ogallala formation

Four recharge tests were conducted by injecting water from playa lakes through wells into the Ogallala Formation. Injection was by gravity flow and by pumping under pressure. At one site, 34-acre feet of water was injected by gravity and produced a significant increase in yield of the well. At a second site, gravity injection of only 0.58 acre-foot caused a significant decrease in permeability due.

The Ogallala formation consists of fluviatile, late Tertiary (Neogene) deposits that underlie the surface that forms the High Plains. Ranging up to 300 feet in thickness, these deposits extend from Texas to South Dakota in a broad belt several hundred miles wide. Contrary to prevalent concepts, the Ogallala was not deposited as a series of ...the Ogallala Formation is given in table 2. The procedures used in manual processing of drillers' logs for coding are illustrated by the systems flowchart shown on figure 3. The coded formats were mailed to the New Mexico District for conversion into punched cards for computer input.The Ogallala Formation consists of eolian (wind-blown) sand and silt and fluvial (stream or river) and lacustrine (lake) sand, silt, clay, and gravel derived from the Rocky Mountains between middle Miocene and early Pliocene time, about 1–12 million yrs (m.y.) ago (Reeves, 1972; Hawley, 1984, 1993; Gustavson et al., 1991).

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The Ogallala Formation in Texas is the southernmost extension of the major water-bearing unit underlying the physiographic province of North America. It was named by Darton (1898) for the town of Ogallala, Nebraska, near the type locality. Following the Laramide revolution in which the southern Rocky Mountains were uplifted and the Cretaceous ...No significant studies of vertebrate fossils from the Ogallala formation in northwestern Kansas have been made in the 20 years from 1935 to 1955. It is our judgment, based on field observations made over a period of 15 years, that further detailed collecting of vertebrate fossils in Ogallala sediments in northwestern Kansas would be profitable ...What remains in the Ogallala formation is mostly fossil water drawn from the Rockies long ago. There is no massive and perpetual recharge (today it is a paltry inch-a-year trickle down) for most recent geological history. The High Plains aquifer is like a flat, sandy beach where the tide has recently gone out; no new water comes in at the upper ...quality data from the southernmost part of the Ogallala Formation in Texas, two chemical analyses obtained for other studies were used. One chemical analysis from Hansford County, Tex., was obtained from Bassett and others (1981). The chemical analysis from Lubbock County, Tex., was obtained from W. W. Wood (U.S. Geological Survey, unpublished ...

The Nacimiento Formation is a sedimentary rock formation found in the San Juan Basin of western New Mexico (United States). It has an age of 61 to 65.7 million years, corresponding to the early and middle Paleocene.The formation has yielded an abundance of fossils from shortly after the Cretaceous-Paleogene extinction event that provide clues …The Ogallala Formation, one of the most extensively exposed rock-stratigraphic units in the United States, extends from South Dakota on the north, to south of New Mexico's southern boundary with Texas. Darton (1928) was the first to use the term Ogallala in New Mexico, but his original spelling was "Ogalalla." ...All of the wells were completed in the Ogallala Formation of the central High Plains aquifer. Samples from each well were collected during February-March 2012 and in March 2013. Depth to groundwater in feet below land surface was measured at each well before sampling to determine the water-quality sampling depths. Water-quality samples were ...outcrops of the Ogallala Formation, which is an important underground aquifer throughout the High Plains. Here at Scott Lake, the Ogallala crops out at the surface as hard, dense sandstones cemented with calcium carbonate, known locally as mortar beds. At the south end of the park, the Ogallala forms a long ridge called Devil's Backbone.

Two new ant-nest trace fossils are described from calcic sandy paleosols of the Neogene Ogallala Formation in western Kansas. The ichnofossils are preserved ...29 de mar. de 2021 ... Join the Panhandle Groundwater Conservation District on a field trip of Palo Duro Canyon State Park. Learn about the Ogallala Formation, ...The Late, Great Ogallala Aquifer. A closer look at the decline of the Panhandle's greatest resource. by Forrest Wilder. August 31, 2010, 8:57 PM, CDT. I've got a story coming out later this week ... ….

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Abstract. The undifferentiated Quaternary and Ogallala Formation sequence in the Northwest Kansas Groundwater Management District 4 (GMD 4) is best described as a highly heterogeneous assemblage of fluvial and eolian sediments. These sediments form the Ogallala portion of the High Plains aquifer. An improved understanding of the local ...Ogallala Formation (Pliocene) at surface, covers 61 % of this area. CIMARRON- Generally semiconsolidated clay, silt, sand, gravel, and caliche 0 to 400 feet thick. BEAVER- Interbedded sand, siltstone, clay, gravel lenses, and thin limestone. Caliche common near surface but occurrence is not limited to the surface.Abstract. Silicified zones and lentils in the Ogallala formation of Pliocene age provide the most abundant rocks of hard and durable character in the central Great Plains, and are known to occur over a region extending from South Dakota to west-central Texas. The two major rock types are so-called quartzite (sandstone and conglomerate with ...

Ogallala Formation. Sand, silt, clay, gravel, and caliche. Sand, fine to cs-grain quartz, silty in part, caliche nodules locally, cemented locally by calcite and by silica, locally crossbedded. Minor silt and clay with caliche nodules, sandy in places. Gravel present locally, pebbles and cobbles of quartz, quartzite, minor chert, igneous rock ...The Ogallala formation in Texas is the southernmost extension of the major water-bearing unit underlying the physiographic province of North America. It was named in 1898 by N.H. Darton for the town of Ogallala, Nebraska, near where the formation was discovered.

tv tonight kansas city Deposits of the Ogallala Formation lie to the north and cast of the buried ridge, while deposits of the ancestral Pecos River (variously 2. 09/18/2003 08:37 505-830-9528 FRAMATOME AW' MtAIO r&K- It .1 mapped as "Cenozoic Basin Iill, Gatufia Formation, or Ogallala Formation) lie to the south andThe Ogallala Formation in Central North America. The Ogallala Formation was named by Darton (1899) from a locality in southwestern Nebraska that he later (1920) referred to as Ogallala Station. Elias (1931, 1932, 1935, 1942) made detailed studies of the Ogallala in western Kansas and described fossil endocarps, nutlets, and anthoecia from the ... jayhawk boulevardsupport desk analyst salary The Ogallala Formation is the primary aquifer unit in the system. The aquifer underlies almost 175,000 mi2 and spans eight states, with most of its area in Nebraska, Texas, and Kansas. This region is among the largest and most productive croplands in the U.S. and is the source of almost 20% of our corn, wheat, and cotton production, as well as ... where are tomatoes native During the Miocene, the Ogallala Formation was deposited across much of eastern Colorado and probably once covered the quadrangle, but has since been removed by erosion. During the Quaternary, deposits of unconsolidated sands and gravels were left in paleochannels, former flood plains along stream courses, and on various upland erosion surfaces ...Samples of sand and gravel from the Ogallala Formation at 40 sites around the Southern High Plains allow for an assessment of the bulk composition of Ogallala sediment, and an analysis of regional variation in composition. Ogallala sand and gravel are rich in lithic grains predominantly derived from sedimentary rocks, with lesser amounts ... positive reinforcement.land watch wvmilton sills The Ogallala is the principal formation of the High Plains Aquifer, also called the Ogallala Aquifer, which is composed of poorly to moderately indurated calcareous sandstone (Gustavson and ...Spatial patterns of lithium, fluoride, nitrate, chloride and bromide in the Ogallala Aquifer of northwestern Texas were mapped and evaluated. Solute concentrations and depths were compiled for 705 water wells sampled between 2008 and 2014. Lithium concentrations were high relative to typical groundwater; median and maximum concentrations were 66.8 and 2,790 ug/L, respectively. Almost half of ... homes for sale sioux falls sd zillow The upper part of the Dockum Group is a thick layer of red clay referred to locally as the "red beds" and is a confining unit between the Ogallala aquifer and the Dockum aquifer. The lower part of the Ogallala Formation consists of heterogeneous sequences of gravel and coarse-grained sand that grades upward into sand, silt, and clay (Peckham ...Ogallala Formation all probably experienced unique histories. Consequently, little logical support exists for an expectation of regional lithostratigraphic continuity along the north-south extent of the Ogallala Formation. Moore et al. (1944) and Frye et al. (1956) adopted member names of the Ogallala Formation in Kansas that were history of african american studiescraigslist tools abq nmadvocates examples the Ogallala formation varies in about the same proportion as the volume of water in storage. Nebraska with 64,400 square miles and Texas with 36,080 are the largest. New Mexico, Oklahoma, South Dakota, and Wyoming all have less than 10,000 square miles of surface area underlain by the Ogallala.7 Table 1: Characteristics of the High Plains Aquifer.