Geology Commons^™

Provenance And Description Of Landslide Masses, Rainbow Gardens Clark County, Nevada., Joseph R. Parolini

UNLV Theses, Dissertations, Professional Papers, and Capstones

A landslide breccia of plutonic and metamorphic rocks located 20 km east of Las Vegas, Nevada is interstratified with the late Tertiary Thumb Formation. Rock types of similar mineral composition to the landslide masses in the Rainbow Gardens are found 60 km to the east in the Gold Butte (Nevada) area. The landslide masses were displaced into their present position by lateral strike-slip motion along either the left-lateral Lake Mead fault system or the right-lateral Las Vegas shear zone. In t.he Rainbow Gardens landslide masses, five plutonic rock types, including rapakivi granite, match rocks from the Gold Butte area, both …

Mineralogy And Petrology Of Lava Flows (Tertiary-Quaternary) In Southeastern Idaho And At Black Mountain, Rich County, Utah, Barbara J. Puchy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Lava flows of Tertiary-Quaternary age occur in Enoch Valley, Upper Valley, and Slug Valley in southeastern Idaho. The basalts in Upper Valley and Enoch Valley contain olivine (Fo₆₉ to Fo₃₇), plagioclase (An₆₂ to An₃₉), augite and Fe-Ti oxides. The lava in Slug Valley lacks plagioclase, but contains sanidine (Or₇₀ to Or₅₆) with a trace of biotite and amphibole, and thus, has been termed alkali trachyte.

Black Mountain, on the eastern side of Bear Lake, northeastern Utah, is capped by basalt. Minerals present include olivine (Fo₈₃ to Fo₇₂), plagioclase …

Nebraska Mineral Operations Review, 1980, D. A. Eversoll, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Petrology Of The Arumbera Sandstone, Late Proterozoic(?) - Early Cambrian, Northeastern Amadeus Basin, Central Australia, Keith T. Conrad

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Arumbera Sandstone forms distinctive strike ridges with dark reddish slopes and orange-white cliffs throughout most of the northeastern Amadeus Basin. It is divisible into four readily mappable informal units. The ridge-forming units, 2 and 4, are divided into three and two subunits, respectively.

Unit 1, Subunit 2b, Unit 3 and Subunit 4b are generally comprised of recessive, pale-red to grayish-red, medium- to thin-bedded, fineto medium-grained arkose with major proportions of siltstone and mudshale. These sedimentary bodies are interpreted as a complex system of coastal to nearshore-marine environments including tidal flats, tidal channels, estuaries and beaches. Evidence includes: (1) predominance …

Petrology Of The Middle Cambrian Blacksmith Formation, Southeastern Idaho And Northernmost Utah, David Paul Zelazek

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Blacksmith Formation of Middle Cambrian (Albertan) age was studied in southeastern Idaho and northernmost Utah. Lithology and sedimentary structures were compared with modern environments and ancient rocks to determine environments of deposition, paleo-geography, diagenetic alterations and patterns of dolomitization.

The Blacksmith Formation can be divided into five basic rock types. Rock type A has cryptalgalaminae, mudcracks, and lacks bioturbation. Rock type A is inferred to have been deposited in the upper intertidal to supratidal environment. Rock type B is extremely dolomitized and brecciated. It is inferred that rock type B was deposited in the upper intertidal to supratidal environment. …

Provenance And Description Of Landslide Masses, Rainbow Gardens, Clark County, Nevada, Joseph R. Parolini

UNLV Theses, Dissertations, Professional Papers, and Capstones

A landslide breccia of plutonic and metamorphic rocks located 20 km east of Las Vegas, Nevada is interstratified with the late Tertiary Thumb Formation. Rock types of similar mineral composition to the landslide masses in the Rainbow Gardens are found 60 km to the east in the Gold Butte (Nevada) area. The landslide masses were displaced into their present position by lateral strike-slip motion along either the left-lateral Lake Mead fault system or the right-lateral Las Vegas shear zone. In the Rainbow Gardens landslide masses, five plutonic rock types, including Rapakivi granite, match rocks from the Gold Butte area, both …

Faunal Succession And Depositional Environments Within The Lodgepole Limestone (Early Mississippian) Of Samaria Mountain, Idaho, Gary Keith Hines

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Community succession, the orderly changes a community experiences with time, is considered to be the result of either autogenic or allogenic factors working singularly or in combination. It has been further suggested that, as communities undergo succession, certain biological parameters change in a predictable manner. Examination of members 2 through 4 of the Mississippian (Kinderhook-Osage) Lodgepole Formation of Samaria Mountain, Idaho provides a means to evaluate these concepts.

Within the study section comprised of 125 beds (61.5 m thick), four rock types are recognized. These include: (1) fossiliferous wackestone (78% of beds), which ranges in color from dark-gray (N3) to …

Maine's Whitewater Rapids And Their Relevance To The Critical Areas Program, Janet Mcmahon

Maine Collection

Maine's Whitewater Rapids and Their Relevance to the Critical Areas Program

by Janet McMahon

Planning Report No. 74, Critical Areas Program, 184 State St., Augusta, Maine,

April, 1981 (additions made in October, 1981). Reprinted July, 1983.

Contents: Introduction / Natural History of Whitewater Rapids / Methods / Criteria / Results / Conclusions / General Evaluation of Whitewater Rapids for Inclusion on the Register of Critical Areas / Bibliography / Action Plan

U-Pb Systematics And Ages Of Rocks From The Zone Of Cataclasis, Bitterroot Dome, Southwestern Montana, Edward Charles Arruda

Masters Theses

The eastern flank of the Bitterroot range, western Montana, consists of a 100 km-long zone of cataclasis which dips to the east. Zircons in sheared granitic plutons from three localities within this zone were dated using U-Pb methods. These zircons, which consist of anhedral cores and euhedral overgrowths, yield concordia lower-intercept ages of 48-52 million years before the present, dates which likely represent crystallization ages of the plutons. Shearing which affected these plutons, therefore, is significantly younger than the 72-76 million year age assigned for eastward movement of the Sapphire tectonic block whose detachment zone has been interpreted as the …

Geology For The Layman, James O. Staggs

Annual of the Arkansas Natural Resources Law Institute

The first thing that an individual must thoroughly understand, is that geology is not an exact science. This may be strange for a geologist to say, but it is very similar to the profession of law in that any set of data may be and is usually interpreted differently by individual lawyers. We geologist start with some known facts (sometime geological), make assumptions, and then intrepret into the unknown. It is this interpretation that separates a successful geologist from a geologist. A successful oil finding geologist is a geologist that has developed this interpretation of geological facts into an art. …

Fluid Inclusion Evidence For Ore-Forming Solutions: Phoenixville, Audubon And New Galena Mine Districts, Pa, Jeanne Passante Lawler

Geology Faculty Research and Scholarship

The Audubon, Phoenixville and New Galena Pb-Zn-Cu vein deposits of southeastern Pennsylvania have been investigated by microthermometric analysis of fluid inclusions in sphelerite, dolomite and quartz. The results obtained from primary and pseudosecondary inclusions in spherelite indicate that the ore was deposited by a sodium rich brine of moderate salinity (11-14 equivalent wt. % NaCl) at temperatures probably near 200 degrees C. The Na-rich character of the fluid suggests that dissolved constituents in the fluids were derived from Na-rich sedimentary rocks of the Newark basin. Local fluid-wallrock interaction may have produced slightly higher salinity fluids (15-16 equivalent Wt. % NaCl) …

The Structure, Geologic Evolution And Regional Significance Of The Bethel Creek-North Fork Area, Coos And Curry Counties, Oregon, Carl Fredrick Gullixson

Dissertations and Theses

The original purpose of this study was a detailed structural analysis of the Jurassic Otter Point Formation in order to determine if the Canyonville Fault Zone, which forms the northern boundary of the Klamath Mountains in the Riddle - Canyonville area (Benson and Perttu, 1980), extends westward to the coast and, if possible, to characterize the structure of the Otter Point Formation. Further, a detailed examination of the structural and stratigraphic relationships between the Otter Point Formation and the Eocene Roseburg and Lookingglass Formations was to be performed in an attempt to determine the tectonic history of the area.

Stratigraphy, Lithofacies And Depositional Environment Of The Cowlitz Formation, T. 4 And 5n., R. 5w. Northwest Oregon, Dale M. Timmons

Dissertations and Theses

The Cowlitz Formation in southern Columbia and Clatsop counties, northwest Oregon was studied in order to prepare a geologic map of parts of this formation and to determine the character of its lithofacies and the environments of deposition.

The Stratigraphy And Structure Of The Columbia River Basalt Group In The Bull Run Watershed, Multnomah And Clackamas Counties, Oregon, Beverly Frobenius Vogt

Dissertations and Theses

Approximately 150 meters (500 feet) of Grande Ronde Basalt and 140 meters (450 feet) of Wanapum Basalt of the Columbia River Basalt Group are exposed in the Bull Run Watershed. In Bull Run, the Grande Ronde Basalt is divided into three mappable units: "low Mg" R₂ (at least one flow), "low Mg" N₂ (approximately four flows), and "high Mg" N₂ (two to three flows}. The Wanapum Basalt is represented by two members: Frenchman Springs Member (six flows) and Priest Rapids Member (one flow). These units are identified by instrumental neutron activation analysis, paleomagnetism based on measurements with …

Stratigraphy, Lithofacies, And Environment Of Deposition Of The Scappoose Formation In Central Columbia County, Oregon, Kevin Blair Kelty

Dissertations and Theses

The study area is located in central Columbia County and encompasses approximately 373 square kilometers. The purpose of the study was to map lithofacies to a scale of 1:31250, study the petrography of the lithofacies, determine the stratigraphy, and develop a model for environment of deposition of the Scappoose Formation.

Conodont Biostratigraphy And Thermal Color Alteration Indices Of The Upper St. Charles And Lower Garden City Formations, Bear River Range, Northern Utah And Southeastern Idaho, United States Geological Survey

All U.S. Government Documents (Utah Regional Depository)

The contact between the St. Charles and Garden City Formatlons in the Bear River Range, Bannock thrust sheet in northern Utah and southeastern Idaho, is a diachronous dlsconformity within the Lower Ordovician, Middle or, possibly, upper Cordylodus proavus Zone (Clavohamulus elongatus to, possibly, C. hintzel Subzones) conodonts indicate that lowermost Canadian Series (Lower Ordovician in North American usage) strata equivalent to the Missisquoia Zone and, possibly, lower Symphysurina Zone (trilobites) are present in the upper part of the St . Charles Formation.

Field-Trip Guide To The Quaternary Stratigraphy And Faulting In The Area North Of The Mouth Of Big Cottonwood Canyon, Salt Lake County, Utah, United States Geological Survey

All U.S. Government Documents (Utah Regional Depository)

This field-trip guide describes the Quaternary stratigraphy and faulting in a small area (about 1 km2 ) undergoing intensive gravel-mining operations north of the mouth of Big Cottonwood Canyon, about 15 km south of Salt Lake City. The area lies in the Sugar House and very northern part of the Draper, Utah, 7 1/2 min. quadrangles.

Altered Volcanic Ash Partings In The C Coal Bed, Ferron Sandstone Member Of The Mancos Shale, Emery County, Utah, United States Geological Survey

All U.S. Government Documents (Utah Regional Depository)

When volcanic ash falls onto the surface of a peat-forming swamp and is then covered by peat, it forms a horlzontal parting that can be recognized in the subsequent coal bed. As a consequence of the acid leaching environment in the swamp, the original glassy component and some of the less resistant pyrogenic minerals in the ash alter to clay minerals, usually kaolinite.

Geologic Map Of The Beaver 15 Minute Quadrangle, Beaver County, Utah, United States Geological Survey

All U.S. Government Documents (Utah Regional Depository)

This is a geologic map of the Beaver 15 minute quadrangle, Beaver County, Utah, and accompanying descriptions and correlations.

Application Of Mineral-Solution Equilibria To The Search For Sanstone-Type Uranium Deposits In The Beaver Basin, Utah, W. R. Miller, J. B. Mchugh, U.S. Geological Survey

All U.S. Government Documents (Utah Regional Depository)

An improved computer modeling program was used to calculate the saturation indexes of 50 waters from the Beaver basin in west-central Utah with respect to uraninite and coffinite. The mineral-solution study showed that the chemical environment of parts of the Beaver basin is favorable for the occurrence of sandstone-type uranium deposits. The ground waters from several areas are supersaturated with respect to uraninite and coffinite. Two areas, in particular, an area west of the town of Beaver and an area near the settlement of Manderfield, have been identified as most favorable for exploration. The methods described in this study can …

Geologic Map Of The Steamboat Mountain And Bible Spring Quadrangles, Western Iron County, Utah, Myron G. Best, Robert L. Davis, U.S. Geological Survey

All U.S. Government Documents (Utah Regional Depository)

Geology mapped in 1980 with the assistance of Lehi F. Hintze and students in the Brigham Young University summer geology field course. This report includes geological maps along with a detailed key.

Shallow Electromagnetic Data From Three Known Fault Zones In The Paradox Basin, Utah, Raymond D. Watts, U.S. Geological Survey

All U.S. Government Documents (Utah Regional Depository)

This report describes a preliminary investigation of the effectiveness of two electromagnetic exploration methods as means of finding unmapped faults in the Paradox Basin environment. Results indicate that the Very Low Frequency (VLF method is useful. VLF profiles were measured across three known fault traces near Gibson Dome, San Juan County, Utah. Each fault or set of faults generated a significant anomaly. In some cases, the anomaly due to the fault was superimposed on a larger scale anomaly caused by the transition from unaltered rocks away from the fault to altered rocks in or on one side of the fault …

Mineral Resources Of The Phipps-Death Hollow Instant Study Area, Garfield County, Utah, G. W. Weir, M. E. Lane, U.S. Geological Survey

All U.S. Government Documents (Utah Regional Depository)

During 1979 and 1980 the U.S. Geological Survey and the U.S. Bureau of Mines conducted field studies to evaluate the mineral-resource potential of the Phipps-Death Hollow Instant Study Area, Garfield County, Utah. Field studies included geological mapping (Weir and Beard, 1981), geochemical sampling, and a search for mines, prospects and mineralized areas.

Mineral Resources Of The Escalante Canyon Instant Study Area, Garfield County, Utah, Gordon W. Weir, Michael E. Lane, U.S. Geological Survey, U.S. Bureau Of Mines

All U.S. Government Documents (Utah Regional Depository)

During 1979 and 1980 the U.S. Geological Survey and the Bureau of Mines conducted field investigations to evaluate the mineral resources potential of the Escalante Canyon Instant Study Area, Garfield County, Utah. Field studies included geological mapping and reconnaissance (Weir and Beard, 1981), geochemical sampling, and a survey of known mines, prospects, and mineralized areas (Lane, 1981).

Hydrology Of The Ferron Sandstone Aquifer And Effects Of Proposed Surface-Coal Mining In Castle Valley, Utah, Gregory C. Lines, Daniel J. Morrissey, Thomas A. Ryer, Richard H. Fuller, U.S. Geological Survey

All U.S. Government Documents (Utah Regional Depository)

Coal in the Ferron Sandstone Member of the Mancos Shale of Cretaceous age has traditionally been mined by underground techniques in the Emery Coal Field in the southern end of Castle Valley in east-central Utah. However, approximately 99 million tons are recoverable by surface mining. Ground water in the Ferron is the sole source of supply for the town of Emery, but the aquifer is essentially untapped outside the Emery area. The Ferron Sandstone Member crops out along the eastern edge of Castle Valley and generally dips 2" to 10" to the northwest beneath the surface. Sandstones in the Ferron …

Off-Road Vehicular Destabilization Of Hillslopes: The Major Contributing Factor To Destructive Debris Flows In Ogden, Utah, 1979, John K. Nakata

All U.S. Government Documents (Utah Regional Depository)

A severe rain storm on August 11 and 18, 1979, caused major flood damage in urban areas of east Ogden, Utah. At least 3.85 cm of rain fell in a 7 hour-period. The severity of damage was dramatically increased by water diverted from the Brigham-Ogden Canal, when it was clogged by a debris flow in the vicinity or Third, Taylor, and Polk Streets (Fig. 1). The purpose or this investigation is to ascertain the sequence of events that followed the storm, and to quantify the processes insofar as possible. An inspection of the area on September 21-25, 1979 , and …

Analyses Of Rock, Stream-Sediment, And Water Samples From The Vermilion Cliffs-Paria Canyon Instant Study Area, Coconino County, Arizona, And Kane County, Utah, Alfred L. Bush, Michael E. Lane, U.S. Geological Survey

All U.S. Government Documents (Utah Regional Depository)

This open-file report contains the complete analyses of all rock, stream-sediment, and water samples collected and used by the U.S. Geological Survey and the U.S. Bureau of Mines in the preparation of Open-File Report 80-1056 (Bush and Lane, 1980). In the tables that follow, Qls indicates a landslipped mass of any form or origin, and only the abbreviated name of rock units is used.

Geophysical Measurements In The Beaver Basin, West-Central Utah; Part 1--Slingram, Magnetic, And Self-Potential Profiles, Vincent J. Flanigan, David L. Campbell, U.S. Geological Survey

All U.S. Government Documents (Utah Regional Depository)

This report consists of figures showing profile locations (fig. 1, table 1) in the Beaver Basin, west-central Utah, and ground geophysical data collected in September 1980 along these traverses (figs. 2-11). These data consist of slingram electromagnetic (real and imaginary components at 222, 444, 888, 1777, and 3555 Hz), ground magnetic and self-potential measurements collected at 200-foot (61-m) intervals along about 8.8 miles (14.2 km) of survey line. Table 2 lists equipment used. The report contains data only, and no interpretations of the data are included.

Geologic Map And Coal Sections Of The Red Point Quadrangle, Eugene G. Elllis, U.S. Forest Service, U.S. Geological Survey, Joseph R. Frank

All U.S. Government Documents (Utah Regional Depository)

Red Point quadrangle, in Emery County in central Utah, was mapped in 1979 as a part of the U.S. Geological Survey's progress to evaluate lands in the public domain for potential coal leasing. Mapping was done using U.S. Forest Service color aerial photographs at a scale of 1:15,640 and U.S. Geological Survey black-and-white aerial photographs at a scale of 1:30,000. The quadrangle was mapped previously by Spicker (1931) at a scale of 1:62,500.

Ua66/8/3 Annual Report, Wku Geography & Geology

WKU Administration Documents

Annual report of activities of the WKU department of Geography & Geology.