Other Earth Sciences Commons^™

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 …

Geology Of The East Potrillo Hills, Dona Ana County, New Mexico, William E. Bowers

Earth and Planetary Sciences ETDs

The East Potrillo Hills are essentially a low north-westerly trending ridge that lies just north of the Mexican border in southern Dona Ana County, New Mexico. The range is approximately 7 miles long and up to 1 1/2 miles wide. It is cut by transverse canyons that carry water to the bolson only during occasionally heavy rains. The crest of the ranges lies 700 to 900 feet above the extensive La Mesa plain which stretches for more than 20 miles to the north, east, and south. In the northern part of the range, the crest reaches a maximum elevation of …

Qualitative Reconnaissance Methods Of Geochemical Exploration, John Francis Brady Jr.

Earth and Planetary Sciences ETDs

No abstract provided.

Upper Cretaceous Farmington Sandstone Of Northeastern San Juan County, New Mexico, Ottis L. Dilworth

Earth and Planetary Sciences ETDs

The Upper Cretaceous Farmington sandstone is found only in northwestern New Mexico and Southwestern Colorado. The Farmington sandstone is the middle member of the Kirtland shale, there being a Kirtland shale member above and below it. This sandstone unit appears as an extensive wedge in the Kirtland shale and thins northward, southward, and southeastward from Townships 30-31 North, Ranges 9-13 West. The thickness of the Farmington sandstone ranges from 27 to 818 feet within the area of this thesis. The unit is correlative with parts of the Vermejo formation of the Raton basin and the Fox Hills formation of the …

Geology Of The San Pedro Mountains Santa Fe County, New Mexico, William W. Atkinson Jr.

Earth and Planetary Sciences ETDs

No abstract provided.

Water Resources Of The Western Slopes Of The Sandia Mountains, Bernalillo And Sandoval Counties, New Mexico, Eugene R. Caprio

Earth and Planetary Sciences ETDs

The purpose of the study on which this thesis is based is to determine the source, occurrence, characteristics, and possible amounts of surface and ground water available along the western slope of the Sandia Mountains, New Mexico.

Controls On Paradox Salt Deposition In The Area Of Comb Monocline San Juan County, Utah, Jim S. Hinds

Earth and Planetary Sciences ETDs

This study was undertaken for the purpose of delineating the configuration of the Paradox salt wedge edge in relation to the Comb monocline structure. It was designed to illustrate whether or not, and to what extent, the Comb structure was a submarine barrier controlling deposition of sediments on the western shelf of the Paradox seaway during middle Paradox time.

Spores Of The Pennsylvanian Toronto Limestone In Kansas And Oklahoma, James F. Carter

Earth and Planetary Sciences ETDs

The Toronto cyclothem is the lower limestone member of the Oread megacyclothem of the Shawnee group, Virgilian series, Pennsylvanian system and crops of in a linear belt extending north-south for a distance of 300 miles across Oklahoma, Kansas, and parts of Missouri and Nebraska.

Mineral Deposits Of The Granite Gap Area, Hidalgo County, New Mexico, David N. Cargo

Earth and Planetary Sciences ETDs

The Granite Gap area lies in the central part of the Peloncillo Mountains about 28 miles southwest of Lordsburg, New Mexico. Ores of lead, zinc, silver, and tungsten from four separate deposits have been mined there during the past seventy years.

Pennsylvanian Spores From The Sandia Formation Santa Fe County, New Mexico, Thomas L. Carten

Earth and Planetary Sciences ETDs

No abstract provided.

Petrology Of The Tijeras Greenstone, Bernallio County, New Mexico, John J. Bruns

Earth and Planetary Sciences ETDs

The Precambrian metamorphosis rocks of the Tijeras Canyon area crop out along a five-mile, northeast-trending belt, which lies approximately five miles east of the Sandia Mountains front, in north-central New Mexico. The sequence, to the east, is overlain uncomfortably by Pennsylvanian Madera limestone, while the trace of the Tijeras fault marks the western side.

The Geology Of South Fork Thrust And Subsurface Geology Of The Belknap Ranch, Park County, Wyoming, James L. Deurmyer

Earth and Planetary Sciences ETDs

The segment of the South Fork thrust in the Belknap ranch area contains rocks representative of the Upper Jurassic, Lower Cretaceous and Upper Cretaceous. The thrust plate occupies 75 percent of the mapped area. Approximately 3,500 feet of predominantly marine rocks comprise the detachment thrust and about 15 percent of the exposed rocks of the thrust plate is sandstone and conglomerate. All the rock units present in the thrust plate crop out beyond the edge of the over-riding mass except the Sundance and Morrison formations. Approximately 4,600 feet of geologic section is exposed of drilled in the mapped area. The …

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.

The Environment Of The Jurassic Todilto Basin, Northwestern New Mexico, Douglas W. Kirkland

Earth and Planetary Sciences ETDs

The Todilto evaporites of Upper Jurassic age were precipitated in a basin which covered more then 34,000 square miles of northwestern New Mexico and parts of Colorado and Arizona. The Todilto formation consists of a lower Limestone and an upper Gypsum member, and has a maximum thickness of a little more than 100 feet. Both members are varved.

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.

Geology Of The Hidden Mountains Valencia County, New Mexico, Patrick J.F. Gratton

Earth and Planetary Sciences ETDs

The hidden mountains are located in Valencia County, New Mexico, immediately southwest of the point where New Mexico State Highway 6 and the Santa Fe Railroad cross the Rio Puerco. This location places the Hidden Mountains near the center of the west half of the Albuquerque-Belen basin of structural and geomorphic Rio Grande Depression.

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.

Geology Of The Northern End Of San Pedro Mountain, Rio Arriba And Sandoval Counties, New Mexico, Osler C. Hutson

Earth and Planetary Sciences ETDs

The structural complexity of this area provided the initial stimulus for this study. With encouragement from Dr. Vincent C. Kelley, the study of this area was undertaken as a master's thesis project. The field work necessary to the project was begun in February, 1957 and completed during the summer of 1957. Mapping was accomplished with the aid of aerial photographs scaled two inches equals one mile. Data were transferred from photographs to a U.S. Soil Conservation Service planimetric map. Strati graphic sections were measured with Brunton compass and a 50-foot steel tape.

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 …

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.

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

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

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.

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 …

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 a_O=3.77 +/- 0.01, b_O=10.46 +/- 0.02, c_O=4.37+/- 0.01 A. The cell formula is Ce₄Ni_4. The observed density if 7.51 grams/cm³ and the calculated density is 7.65 grams/cm³, a deviation of 1.8%.

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.

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 …

The Variegated Member Of The Morrison Formation In The Southeastern Part Of The San Juan Basin, Valencia County New Mexico, William L. Chenoweth

Earth and Planetary Sciences ETDs

The strata now designated as Morrison in western New Mexico have been known by a variety of names since the beginning of geological exploration in the West. The nomenclature has become confused due to the many facies that are present. Recent exploration for uranium has renewed interest in the stratigraphy of the Morrison formation.