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Articles 5041 - 5070 of 5274

Full-Text Articles in Earth Sciences

Nebraska Groundwater Relation To Median, Fall 1958 Oct 1958

Nebraska Groundwater Relation To Median, Fall 1958

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Groundwater Map Of Nebraska Showing Relation Of Fall 1959 Readings To Median Water Level Measurement, E. C. Reed Oct 1958

Groundwater Map Of Nebraska Showing Relation Of Fall 1959 Readings To Median Water Level Measurement, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Jurassic Todilto Formation Of New Mexico, Henry O. Ash Jun 1958

The Jurassic Todilto Formation Of New Mexico, Henry O. Ash

Earth and Planetary Sciences ETDs

The Todilto formation of New Mexico is a widespread and distinctive Jurassic unit confined to the northern one-half of the State and adjacent parts of Arizona and Colorado. It consists of a lower Limestone member and an upper Gypsum member. The Gypsum member also contains some limestone. The two members are not coextensive in area. Both are present in the central part of the area in which the formation is found, but the Limestone member extends far beyond the limits of the Gypsum member.


Geology Of The Pedernal Hills Area Torrance County, New Mexico, John F. Fallis Jun 1958

Geology Of The Pedernal Hills Area Torrance County, New Mexico, John F. Fallis

Earth and Planetary Sciences ETDs

The area included in this report is in the north-central part of Torrance county, central New Mexico. The area is bounded on the north by U.S. Highway 66, on the east by U.S. Highway 285, on the south by U.S. Highway 60, and on the west by the approximate eastern edge of the Estancia basin. Clines Corners on U.S. Highway 66 forms the Northeast corner of the area. The mapped area contain approximately 230 square miles.


Stratigraphy And Structure Of The French Mesa Area, Rio Arriba County, New Mexico, Francis L. Fitter Jun 1958

Stratigraphy And Structure Of The French Mesa Area, Rio Arriba County, New Mexico, Francis L. Fitter

Earth and Planetary Sciences ETDs

The French Mesa Area includes over 120 square miles between the Nacimiento- San Pedro uplift and the Gallina Mountain uplift in Rio Arriba County, New Mexico. The French Mesa anticline is the most striking structural and topographic feature of the area.


Microstratigraphic And Sedimentational Studies Of An Early Man Site Near Lucy, New Mexico, Jerry Harbour Apr 1958

Microstratigraphic And Sedimentational Studies Of An Early Man Site Near Lucy, New Mexico, Jerry Harbour

Earth and Planetary Sciences ETDs

The purpose of the study has been to interpret the sedimentary record of the Lucy site deposits in order to establish a climatic sequence into which various cultural zones, especially the Sandia, may be placed, and to date this climatic sequence as accurately as possible. A second purpose has been to establish the reliability of the Pleistocene Lake Estancia shore levels as a regional floating chronology of climatic events, and to correlate the Lucy site sediments with this regional chronology. By means of the Lucy site artifacts, this chronology is partly fixed in time, so as a result of the …


Water Levels In Observation Wells In Nebraska, 1957, C. F. Keech Apr 1958

Water Levels In Observation Wells In Nebraska, 1957, C. F. Keech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Total Number Of Irrigation Wells Located In Nebraska Counties As Of 1958 Jan 1958

Total Number Of Irrigation Wells Located In Nebraska Counties As Of 1958

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Photograph Of Relief Model Map Of Nebraska, Conservation And Survey Division Jan 1958

Photograph Of Relief Model Map Of Nebraska, Conservation And Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Oil In Nebraska Jan 1958

Oil In Nebraska

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Groundwater Level (Decline & Rise) As Of December 1957., E. C. Reed Dec 1957

Nebraska Groundwater Level (Decline & Rise) As Of December 1957., E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Preliminary Estimate Of The Underflow Across The South Dakota-Nebraska State Line In The Niobrara River And Ponca Creek Drainage Basins, E. C. Reed, C. F. Keech Nov 1957

Preliminary Estimate Of The Underflow Across The South Dakota-Nebraska State Line In The Niobrara River And Ponca Creek Drainage Basins, E. C. Reed, C. F. Keech

Conservation and Survey Division: Faculty and Staff Publications

The purpose of this paper is to estimate the amount of ground water flowing across the South Dakota-Nebraska State line within the Niobrara River basin, including the Ponca Creek basin. The study was made at the request of the Niobrara River Compact Commission. The estimates fiven in the paper are preliminary and subject to revision.


Correlation Of Reef Calcarenites Of The Pennsylvanian Paradox Formation, San Juan County, Utah, Jack Jordan May 1957

Correlation Of Reef Calcarenites Of The Pennsylvanian Paradox Formation, San Juan County, Utah, Jack Jordan

Earth and Planetary Sciences ETDs

This thesis is a summation of lithologic analyses of three stratigraphic sections: the Danvers 1-X Harris-Federal test, the Honaker Trail locality, and the Raplee locality in San Juan Canyon, San Juan County, Utah (FIg. 1) In these localities, the Paradox Formation as defined by Wengerd and Strickland (1954, p.2169) has been studied, inasmuch as the formation is known to contain limestone bioherms ("reefs") (Wengerd, 1951) in conjunction with biostromal strata.


Northeastern Cherry And Western Keya Paha County Preliminary Ground Water Study 1957 (Gm-26): Reed, E.C. Conservation And Survey Division , Size 8.5" X 11"., E.C. Reed Jan 1957

Northeastern Cherry And Western Keya Paha County Preliminary Ground Water Study 1957 (Gm-26): Reed, E.C. Conservation And Survey Division , Size 8.5" X 11"., E.C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Log Of Test Holes Frenchman Creek Basin Nebraska, C. F. Creech Jan 1957

Log Of Test Holes Frenchman Creek Basin Nebraska, C. F. Creech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geology And Ground-Water Resources Of The Portales Valley Area, Roosevelt And Curry Counties, New Mexico, Sherman E. Galloway May 1956

Geology And Ground-Water Resources Of The Portales Valley Area, Roosevelt And Curry Counties, New Mexico, Sherman E. Galloway

Earth and Planetary Sciences ETDs

Since 1910, and particularly since the closing years of World War II, considerable development of the ground water occurring in the valley fill has been made for irrigation purposes. This increase in development has resulted in a progressive decline of the water levels in this area. The results of this study indicate that the water occurring in the valley fill is the only water of good chemical quality occurring in the Portales Valley that can be obtained in quantities that are sufficient for normal irrigation, municipal, industrial, stock, and domestic uses, and that if the present rate of ground water …


Paleozoic Stratigraphy Of The Mud Springs Mountains, Sierra County, New Mexico, John Davis Hill May 1956

Paleozoic Stratigraphy Of The Mud Springs Mountains, Sierra County, New Mexico, John Davis Hill

Earth and Planetary Sciences ETDs

This thesis gives a history of the terminology of each of the formations found in the Mud Springs Mountains as well as a discussion of the characteristics of each. The Mud Springs Mountains Section of Paleozoic rocks is 3660 feet thick. Parts of all the Paleozoic systems are represented except the Silurian and Mississippian. The Bliss sandstone is 145 feet thick, the lower 65 feet being late Cambrian and the upper 80 feet being early Ordovician. The El Paso limestone of early Ordovician age is 460 feet thick.


The Instability Of Folded Structures, Robert Del Mar May 1956

The Instability Of Folded Structures, Robert Del Mar

Earth and Planetary Sciences ETDs

Folded structures are not necessarily stable through geologic time. "Unfolding" is defined as the changes in attitude through with folded structures go subsequent to their creation by tectonic means, other than by faulting alone. The principal types of unfolding, together with their causes, are: (1) the effect of gravity on isolated structures, and the effects of loading and unloading insofar as the gravitational force is concerned; (2) basining action and its effect on unloading; (3) the action of vertical forces on folded structures; (4) migrating or "wave" folds in relation to unfolding.


Annual Installation Of Irrigation Wells In Nebraska Through 1985, Conservation Survey Division Jan 1956

Annual Installation Of Irrigation Wells In Nebraska Through 1985, Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Relation Of Nebraska Water-Level Measurements Made In 1955 To Median Water-Level Position, E. C. Reed Oct 1955

Relation Of Nebraska Water-Level Measurements Made In 1955 To Median Water-Level Position, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Hydrologic Data Collection Program For New Mexico, Ralph L. Strother May 1955

Hydrologic Data Collection Program For New Mexico, Ralph L. Strother

Civil Engineering ETDs

The objective of this thesis is to present a program for the collection of basic hydrologic data for the state of New Mexico. It is an expansion of the existing program which currently becomes more inadequate with the progressively extensive use of the water resources of the state. The need for hydrologic data for planning and operation of water use and control structures far exceeds that obtained by the existing program.

Types of data reported upon are climatological, stream flow, ground water, quality of water, suspended sediment, snow cover and reservoir, valley and channel sedimentation. For the purposes presented herein …


Great Salt Lake Diking Project, Large Plan, Hydrology And Quality Of Water Study, United States Department Of Interior, Bureau Of Reclamation Mar 1955

Great Salt Lake Diking Project, Large Plan, Hydrology And Quality Of Water Study, United States Department Of Interior, Bureau Of Reclamation

Elusive Documents

The purpose of this study was to determine the feasibility of diking a portion of the Great Salt Lake for purposes of using the fresh water for irrigation, industrial uses, and recreation. This study approached the problem only for a hydrologic and quality of water standpoint.


Records Of Wells Drilled For Oil And Gas In New Mexico, George H. Dixon May 1954

Records Of Wells Drilled For Oil And Gas In New Mexico, George H. Dixon

Earth and Planetary Sciences ETDs

This report contains information compiled from data in the files of the U.S. Geological Survey, the New Mexico Bureau of Mines and Mineral Resources, and oil and gas companies on nearly 3,000 of the more than 13,000 wells drills in New Mexico prior to September 1, 1953. The tabulation is believed to include all unsuccessful wildcat test wells, most of the unsuccessful field extension wells, and most of the discovery wells for the various producing areas, even though they may be shut or abandoned at the present time. In addition, the list contains some deep tests and some wells representative …


Occurrence Of Great Soil Groups In Nebraska, J. A. Elder Jan 1954

Occurrence Of Great Soil Groups In Nebraska, J. A. Elder

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Crystal Structure Of Ceni, Joseph J. Finney May 1953

The Crystal Structure Of Ceni, Joseph J. Finney

Earth and Planetary Sciences ETDs

X-ray diffraction methods were used to determine the cell constants and structure of CeNi. The unit cell is orthohombic. The spcae group is probably Cmcm with aO=3.77 +/- 0.01, bO=10.46 +/- 0.02, cO=4.37+/- 0.01 A. The cell formula is Ce4Ni4. The observed density if 7.51 grams/cm3 and the calculated density is 7.65 grams/cm3, a deviation of 1.8%.


Stratigraphic Analysis Of The Upper Cretaceous Pictured Cliffs Sandstone In Northeastern San Juan County, New Mexico, John W. Caldwell May 1953

Stratigraphic Analysis Of The Upper Cretaceous Pictured Cliffs Sandstone In Northeastern San Juan County, New Mexico, John W. Caldwell

Earth and Planetary Sciences ETDs

The San Juan Basin is located in northwestern New Mexico and southern Colorado and is physiographically a part of the Colorado Plateau province.

The Upper Cretaceous Pictured Cliffs sandstone is exposed around the perimeter of the San Juan Basin and is present throughout the greater part of the Basin in the subsurface. This economically important gas-bearing sandstone is situated in the structural basin in which the strata are upturned on the basinward flanks of the nearby Laramide cliffs.

Five possible origins for the Pictured Cliffs gas are presented: from the underlying Lewis shale, from within the Pictured Cliffs sandstone, from …


Stratigraphic Relationships Of Cretaceous And Early Tertiary Rocks Of A Part Of Northwestern San Juan Basin, Elmer H. Baltz Jr. May 1953

Stratigraphic Relationships Of Cretaceous And Early Tertiary Rocks Of A Part Of Northwestern San Juan Basin, Elmer H. Baltz Jr.

Earth and Planetary Sciences ETDs

No abstract provided.


The Structural Geology Of The Cerrillos Hills Area, New Mexico, Alan E. Disbrow May 1953

The Structural Geology Of The Cerrillos Hills Area, New Mexico, Alan E. Disbrow

Earth and Planetary Sciences ETDs

The earliest major structural deformation recorded in rocks exposed in the Cerrillos area occurred during the Laramie uplift of the Sangre de Cristo Mountains. This resulted in an erosional wedging of Upper Cretaceous strata at a rate of 130 feet per mile. Subsequent deposition of the Eocene Galisteo sand, clay, and gravel overstepped this surface in a sourceward direction.

At the beginning of work on this project the major problem was to determine the geological structure of the Cerrillos Hills. It was felt that a large-scale geologic map of an area extensive enough to reveal the structurally complex center of …


The Huego (Gym) Limestone, Luna County, New Mexico, Lowell E. Bogart May 1953

The Huego (Gym) Limestone, Luna County, New Mexico, Lowell E. Bogart

Earth and Planetary Sciences ETDs

Southwestern New Mexico is characterized by Basin and Range Physiography. Nearly level bolson plains are interrupted irregularly by linear mountain ranges. Sedimentary rocks ranging in age from Cambrian and recent crop out in the mountain areas. Darton (1916) mapped and described a limestone formation, about 1,000 feet thick, which he named Gym limestone. He thought the Gym was restricted in outcrop to Luna County and was distinct from previously described Paleozoic formations. The Gym was originally thought to be Pennsylvanian in age but later on was regarded as Permian. In the restudy of the Gym limestone was the basis of …


Geology Of The Mcrae Canyon Area Sierra County, New Mexico, Hugh P. Bushnell May 1953

Geology Of The Mcrae Canyon Area Sierra County, New Mexico, Hugh P. Bushnell

Earth and Planetary Sciences ETDs

Sedimentary Rocks exposed at the surface in the low area between the north-trending Caballo and Fra Cristobal Mountains of south-central New Mexico include the late Cretaceous Mesaverde formation, the late Cretaceous and early Tertiary McRae formation, and the Miocene-Pliocene Santa Fe formation. A thin veneer of Jordana pediment gravel covers the older rocks on the eastern edge of the area.