Geology Commons^™

Nebraska Soils, John A. Elder

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nebraska Groundwater Level Map (Decline & Rise) Between Fall 1954 And Fall 1964

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Basic-Data Report Saline County, Nebraska, Philip A. Emery

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Ground-Water Appraisal Of The Meadow Valley Area, Lincoln And Clark Counties, Nevada, F. Eugene Rush

Publications (WR)

This report, the 27th in the series of reconnaissance ground-water studies which were initiated following authorization by the I960 Legislature, gives the results of a study of the Meadow Valley area. This area includes eight valleys in southeastern Nevada - - Patterson, Spring, Eagle, Dry, Rose, Panaca, Clover, and Lower Meadow Valley - - all part of the Colorado River drainage system.

This study was made and report prepared by F. Eugene Rush, Geologist for the U. S. Geological Survey.

These reconnaissance ground-water resources surveys make available pertinent information of great and immediate value to many State and Federal agencies. …

Water Levels In Observation Wells In Nebraska, 1963, Philip A. Emery, Mildred M. Malhoit

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Slope Deposits Of The Pennsylvanian Haymond Formation, Marathon Region, Texas, Walter E. Dean Jr.

Earth and Planetary Sciences ETDs

The Haymond Formation of the Marathon basin, Texas consists mainly of a sequence of more than 12,000 siltstone-shale couplets which, combined with the similar couplets of the older Tesnus Formation, form a sequence of "flysch" sediments more than 10,000 feet thick deposited on the eastern slope of the subsiding Llanoria geosyncline. The Haymond Formation contains no diagnostic fossils; its age is known only as Lower Pennsylvanian, probably Atokan.

Stratigraphic Sequences In The Pennsylvanian Of Nebraska And Their Relationships To Cyclic Sedimentation, E. C. Reed, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nebraska Groundwater Level Map (Decline & Rise), Fall 1963

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Lithostratigraphy And Correlation Of The Mississippian System In Nebraska, Marvin P. Carlson

Conservation and Survey Division: Faculty and Staff Publications

The purpose of this study is to describe and correlate rocks of Mississippian age within the state of Nebraska. Shales, generally classified as "Chattanooga" and commonly referred to as Devonian or Mississippian in the northern Mid-Continent, have been included in this study, although these shales are more generally believed to be Devonian and not Mississippian by most stratigraphers and paleontologists at the present time. Since rocks of Mississippian age are present only in the subsurface of Nebraska, the basic information for this report is derived from the microscopic study of cuttings and cores from test wells drilled within the state.

Water Levels In Observation Wells In Nebraska, 1962, Philip A. Emery, Mildred M. Malhot

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Topographic Regions Maps, J. A. Elder, V. H. Dreeszen, E. C. Weakly

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Groundwater Map Of Nebraska Relation Fall 1962 Observation Well Readings To Median, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Geology Of The Sedillo-Cedro Canyon Area, Bernallio County, New Mexico, Bert Norman Brown

Earth and Planetary Sciences ETDs

This report was undertaken primarily as a study of Pennsylvanian strata which crop out in the Sedillo-Cedro Canyon area. The subdivision of the Madera formation as proposed by Read and others (1944) was adopted for purposes of mapping. This subdivision is based on a dominance of either limestone or clastic rocks in the formation.

The writer was unable to measure a Pennsylvanian section in the field due to thickness changes, facies gradations, and faults which were often concealed by dense soil cover. However, by visually traversing the area on aerial photographs using arbitrarily chosen zones, estimated thicknesses for the members …

Permian Stratigraphy And Stratigraphic Paleontology Of The Colorado Plateau, Peggy L. Kirkland

Earth and Planetary Sciences ETDs

The purpose of this study is to synthesize a portion of this vast source of data in order to arrive at a better understanding of Permian stratigraphy.

Geology Of Torreon And Pedricenas Quadrangles, Coahuila And Durango, Mexico, Russell E. Clemons

Earth and Planetary Sciences ETDs

The Torreon and Pedricenas quadrangles are in central Mexico between parallels 25 degrees and 26 degrees N. and meridians 103 degrees 20' and 104 degrees W.; together they embrace 7,600 square kilometers. The northeastern corner of the area lies in the Bolson de Mapimi; most of the area, however, is in the Sierra Madre Oriental.

Hypogene Zoning In The Lordsburg Mine District, Hidalgo County, New Mexico, K. F. Clark

Earth and Planetary Sciences ETDs

Although descriptions of the Lordsburg mining district have been in the literature for more than fifty years, no reference to hypogene zoning of the ores has been made. The present work is mainly concerned with hypogene zoning and related phenomena. Hypogene zoning, temperature of formation, and paragenesis are interrelated factors in ores differentiated from magmas. All three processes are discussed in this thesis. Other aspects of the mining district are mentioned only where relevant.

Water Levels In Observation Wells In Nebraska, 1961, C.F. Keech, J.B. Hyland

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Interbasin Movement Of Ground Water At The Nevada Test Site, Isaac J. Winograd

Publications (WR)

The present paper presents hydraulic evidence for the interbasin circulation of ground water through carbonate rocks of Paleozoic age at the Nevada Test Site. An integral part of this evidence is the discovery that aquifers in alluvium and tuff, formerly thought to be the principal aquifers at the Test Site, are semiperched above a thick tuffaceous aquiclude that separates them from the carbonate rocks.

This paper is based on one of the studies being made by the Geological
/="/">Survey for the Atomic Energy Commission. These studies seek to evaluate
/="/">the risk that may arise if ground water should …

The Program Of Ground- Water Investigations In Nebraska, C.F. Keech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Groundwater Map Of Nebraska Showing Relation Of Fall 1961 Readings To Median Water Level Management, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Basic Data Report Lower Cedar River Drainage Basin, Nebraska, J.B. Hyland

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Geology And Ground-Water Resources Of Northern Lea County, New Mexico, Sidney R. Ash

Earth and Planetary Sciences ETDs

The economy of northern Lea County is dependent upon groundwater; the only other source of water is the runoff from precipitation that is caught and retained in the man-made or natural reservoirs, where is it used for water stock. Irrigation utilizes most of the groundwater pumped; much smaller amounts are used for stock watering and industrial, public, rural and domestic supplies. In 1958, about 107,000 acre-feet of groundwater was pumped for irrigation and 19,000 acre-feet was pumped for all other uses. On the basis of present production of potable water, the economically usable supply will be depleted in certain areas …

The Structure And Stratigraphy Of The Frontier Formation In The Big Piney-La Barge Area Sublette And Lincoln Counties, Wyoming, Eldred D. Johnson

Earth and Planetary Sciences ETDs

This study was undertaken to fulfill part of the requirements for the degree of Master in Science of Geology. The Big Piney-LA Barge area in western Wyoming covers approximately 354 square miles on the western edge of the Green River Basin and the eastern edge of the over thrust belt. The area is underlain by a sedimentary sequence containing rocks representing all the geologic time periods form the Cambrian through the Cenozoic, with the exception of the Silurian period. The entire known post-Precambrian strati-graphic sequence is approximately 18,00 feet thick.

A Petrographic And Environmental Study Of The Upper Cretaceous Greenhorn Limestone, New Mexico, John W. Emerson

Earth and Planetary Sciences ETDs

The Upper Cretaceous Greenhorn Limestone is composed of intercalated agrillaceous limestone and calcareous shale beds which crop out over much of the Western Interior. The Greenhorn was deposited in late Cenomanian and early Turonian time in a westward transgressing sea. In New Mexico the age is early Turonian. The edge of deposition extends as far south as Capitan and Carthage, northward through western Bernalillio County, and northwest through Toadlena.

Lithogenesis Of Atoll Sediments, Uliga Island, Majuro Atoll, Marshall Islands, Phyllis B. Helms

Earth and Planetary Sciences ETDs

Sixteen thin sections and 53 samples of rock and sand were examined under petrographic and binocular microscopes to determine composition, kinds of cement, degrees of cementation, and the sequence of lithogenesis of the consolidated materials. Studies were made of the loose sediments to relate the characteristics of the sedimentary grains to environmental energy of today, and then collate these data with the lithified sediments.

Geology Of The Nutria Monocline, Mckinley County, New Mexico, R. John Edmonds

Earth and Planetary Sciences ETDs

The Nutria monocline forms the northwestern boundary of the Zuni uplift in McKinley County, New Mexico. The sedimentary rocks that are exposed along the monocline range in age from Permian to Cretaceous and rest on Granite of probable Precambrian age. The Jurassic Todilto limestone, which is present north of the mapped area, pinches out in a southerly direction. South of this pinch-out the massive sandstone of the Entrada formation joins the main body of the Zuni sandstone. Only the even bedded, silty sandstone that has previously been considered to be the middle member of the Entrada is regarded as Entrada …

Water Levels In Observation Wells In Nebraska 1960, C.F. Keech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Geologic Section Of Bradley, Calhoun, Ouachita, And Part Of Nevada Counties, Arkansas, Donald R. Albin

Journal of the Arkansas Academy of Science

A series of 23 test holes has been drilled across Bradley, Calhoun, Ouachita, and part of Nevada Counties in southcentral Arkansas to determine the geology of the shallow water-bearing deposits of Tertiary and Quaternary age . The correlation of the lithologic and electric logs of the test holes and available electric and drillers' logs of oil-test wells indicates that: (1) the transition zone in the upper part of the Midway group may be about 85 feet thick in Nevada and Ouachita Counties; (2) the contact between the Wilcox and Claiborne groups is about 12 miles northwest of the location shown …

Wells In Fillmore County, Nebraska, C.F. Keech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Groundwater Map Of Nebraska, November 1960, E. C. Reed, V. H. Dreeszen

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.