Earth Sciences Commons^™

Greeley County, Chalk Mine State Wayside Area, R. K. Pabian

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Water Resources Data For Nebraska Water Year 1976

Conservation and Survey Division: Faculty and Staff Publications

Water resources data for the 1976 water year for Nebraska consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water levels and water quality in wells and springs. This report contains discharge records for 146 gaging stations; stage and contents for 9 lakes and reservoirs; water quality for 40 gaging stations, 18 ungaged stations, 27 partial-record flow stations, and 96 wells; and water levels for 66 observation wells. Also included are 114 crest-stage partial-record stations and 12 low-flow partialrecord stations. Additional water data were collected at various sites, not part …

Groundwater Levels In Nebraska, 1975, Michael J. Ellis, Darryll T. Pederson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Long-Distance Turbidite Correlations In The Horseshoe Abyssal Plain, William H. Hoyt

Geology Theses and Dissertations

Few studies on modern abyssal plain turbidites have attempted to assess the lateral extent of individual units and few have therefore been able to provide any information on the evolution of turbidity deposits across long abyssal plain distances. In the 4755 m-deep Horseshoe Abyssal Plain, ten distinct lithologic units (six of these Iberian Peninsula-derived turbidites) were delineated in nine piston cores on the basis of stratigraphic position, thickness (range of 20 cm to greater than 500 cm), color, sediment type, sedimentary structures, x-ray mineralogy, and the ubiquitous presence of units in all abyssal plain and supplying canyon piston cores. In …

Nebraska Remote Sensing Center News, Rex Peterson, Paul Seevers

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Big Springs Ne Quadrangle, Garden And Deuel Counties, Nebraska, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

7.5' topgraphic quadrangle showing exposures of bedrock formations and other geologic information.

41° 07'30" — 41° 15'

102° 00' — 102° 07'30"

Scale 1:24,000

Completed July 16, 1976

High resolution .tif file attached below as supplemental file

Ruthton Quadrangle, Nebraska—Garden And Keith Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Ruthton Quadrangle, Nebraska—Garden and Keith Counties

7.5 minute series (topographic), scale 1:24000

103°07'30" to 103°15'

41°15' to 41°22'30"

Ql=loess, Qsa=sand; Ogallala & Post-Ogallala Gravels (Blancan?), Ogallala Outcrop; Pre-Ogallala Outcrop (Brule), Faunal site

July 16, 1976

Lewellen Quadrangle, Nebraska--Garden County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Lewellen Quadrangle, Nebraska--Garden County

7.5 minute series (topographic), scale 1:24,000

102°07'30" to 102°15'

41°22'30" to 41°15'

Ql = loess

Qsa = sand

Volcanic ash

Ogallala and post-Ogallala gravels

Ogallala Outcrop

Pre-Ogallala Outcrop (Brule)

Faunal site

Completed July 16, 1976

Keystone Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

7.5' topgraphic quadrangle showing exposures of bedrock formations and other geologic information.

41° 07'30" to 41° 15'

101° 30' to 101° 37'30"

Scale 1:24,000

Completed July 16, 1976

High resolution .tif file (130 MB) attached below as supplemental file

Physiography, Geology, And Water Resources Of Boyd County, Nebraska, Vernon L. Souders

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Big Springs Nw Quadrangle, Garden And Deuel Counties, Nebraska, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

7.5' topgraphic quadrangle showing exposures of bedrock formations and other geologic information.

41° 07'30" — 41° 15'

102° 07'30" — 102° 15'

Scale 1:24,000

Completed July 16, 1976

High resolution .tif file attached below as supplemental file

Laws, Rules, And Regulations Pertaining To Groundwater In Nebraska, Gerald R. Svoboda

Conservation and Survey Division: Faculty and Staff Publications

This publication contains (1) Nebraska laws pertaining to groundwater, and (2) the duties assigned to or the rules and regulations developed by various Nebraska agencies charged with the regulation of groundwater use. Following public hearings, rules and regulations can be changed at any time by state agencies. Each state agency with responsibility for groundwater regulation is able to supply, upon request, its rules and regulations pertaining to groundwater use. Water legislation varies from state to state because of differences in climate, availability and utilization of water, and fundamental legal concepts inherited at the time of statehood. Some states have laws …

The Geology Of The Castle Rock Area, Grant, Harney And Malheur Counties, Oregon, John David Wood

Dissertations and Theses

The geology of the Castle Rock area aids in the understanding of Cenozoic volcanic stratigraphy and structures in an area where these volcanic rocks thin near the margins of the pre-Tertiary basement rocks and structural trends are overlapping. The Castle Rock area is unique in several aspects and is important in understanding and interpreting the geology in adjacent regions which have all been studied, at least on a regional basis. Intrusive ash-flow bodies of the Dinner Creek Ash-Flow Tuff, well-exposed sections of complexly interstratified volcanic rocks and well-exposed faults, and of high amount of erosional relief are features which make …

Geology And Ore Deposits Of The Johnnie District, Nye County, Nevada, Stanley Wayne Ivosevic

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Johnnie district, in the northwestern Spring Mountains, Nye County, Nevada, may have produced a little under 100,000 troy oz of gold, since the discovery of the district in 1890.

An approximately 13,000-ft-thick (4,000 m) section of east-dipping upper Precambrian through Middle Cambrian miogeosynclinal clastic and carbonate rocks is exposed in the district. The strata are, in order of decreasing age, the Johnnie Formation, Stirling Quartzite, Wood Canyon Formation, Zabriskie Quartzite, and Carrara and Bonanza King Formations. These are overlain by Cenozoic units which include and older unit and a younger unit of fanglomerate, the older containing a megabreccia deposit, …

Water Resources Of Pierce County, Nebraska, Robert E. Brogden, Richard A. Engberg

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Regional Tectonics And Seismicity Of Eastern Nebraska, Annual Report June 1, 1976- June 1, 1977, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Regional Carbonate Deposition Of The Pitkin Limestone (Chesterian): Washington And Crawford Counties, Arkansas, Robert E. Tehan

Journal of the Arkansas Academy of Science

The Pitkin Limestone overlies black shale of the Fayetteville Formation and is the youngest Mississippian unit in the Paleozoic succession of northwest Arkansas. Five major fades have been delineated within the formation by apetrographic examination of samples collected from 17 measured sections: (1) oolith facies, (2) bioclast facies, (3) nodular limestone-shale facies, (4) mudstone facies, and (5) lime mud mound facies. The distribution of these facies in the Pitkin Formation suggests that Fayetteville terrigenous sedimentation was succeeded by the deposition of widespread oolith shoals and skeletal blanket sand bodies across the northern Arkansas structural platform. Sparse accumulations of lime mud …

Structural Studies In The Northern Chester Dome Of East-Central Vermont, Bruce Wallace Nesbit

Geology Theses and Dissertations

Rocks in the Eastern Vermont Sequence are highly metamorphosed and are said to range in age from Precambrian to Siluro-Devonian. The sequence outcrops on Keyes Mountain, about 6km Northwest of Felchville, Vermont, and an area on this mountain about 2km square was mapped in great detail.
The dominant rock type found is quartzofeldspathic gneiss, but schistose gneiss, amphibolite, quartzite and schist also occur. Most of these rocks are layered but layering has been transposed in many places and much of it is probably secondary. Layering and schistosity both dip dominantly to the north at about 25º.
A number of mesoscopic …

Lower Mississippian Lithostratigraphy, Northern Arkansas, Walter L. Manger, Jack L. Shanks

Journal of the Arkansas Academy of Science

Lower Mississippian lithostratigraphic units in northern Arkansas are (ascending order) the Bachelor, St. Joe, and Boone Formations. These formations disconformably overlie Middle Ordovician to Upper Devonian strata and are overlain disconformably by Meramecan or Chesterian strata. The Bachelor Formation is generally a thin (less than 0.3 m), persistent, orthoquartzitic sandstone with common to abundant phosphatic pebbles overlain by a green silty shale. In northwestern Arkansas, the Bachelor Formation commonly lacks sandstone. The Bachelor Formation has been confused previously with the Sylamore (Upper Devonian) and older sandstone units. Although commonly regarded as a member of the Boone Formation, the St. Joe …

Algal-Bryozoan Carbonate Buildups Within The Pitkin Limestone (Mississippian-Chesterian), Northwest Arkansas, Alex T. Warmath

Journal of the Arkansas Academy of Science

More than 14 biohermal buildups have been recognized within the Pitkin Limestone (Mississippian-Chesterian) in eastern Washington and western Madison Counties, northwest Arkansas. These buildups resemble previously described algal mounds in upper Pennsylvanian strata of the Midcontinent region, but differ in their faunal and floral constituents. The mounds are composed of calcilutite with variable amounts of spar and fossil allochemical grains. Associated flanking facies consist of mixed biosparite near the core, grading outward into oosparite. A few zones of shaly, poorly washed biomicrite containing rounded clasts bearing Archimedes fragments are interbedded with the flanking mixed biosparite facies. These clasts appear to …

Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1976

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Water Resources Data For Nebraska Water Year 1975

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nebraska Mineral Operations Review, 1975, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

During 1975, there were active in Nebraska 42 limestone quarries; 596 sand, gravel and silt or siltstone pits; 8 clay or shale pits; 22 sandstone pits; and 1 peat pit. These 669 mining operations disturbed 663 acres and restored 161 acres during the year.

Location Of Registered Irrigation Wells In Nebraska As Of 1976

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

The Mineral Industry Of Nebraska, William F. Keyes, Raymond R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Belmar Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

7.5' topgraphic quadrangle showing exposures of bedrock formations and other geologic information.

41° 15' — 41° 22'30"

101° 52'30" — 102° 00'

Scale 1:24,000

Completed August 14, 1975

High resolution .tif file attached below as supplemental file

Lemoyne Quadrangle, Nebraska--Keith County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Lemoyne Quadrangle, Nebraska--Keith County

7.5 minute series (topographic), scale 1:24,000

101°45' to 101°52'30"

41°15' to 41°22'30"

Ogallala Outcrop (in pencil)

Completed August 14, 1975

Brule Nw Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

7.5' topgraphic quadrangle showing exposures of bedrock formations and other geologic information.

41° 07'30" — 41° 15'

101° 52'30" — 102° 00'

Scale 1:24,000

Completed August 14, 1975

High resolution .tif file attached below as supplemental file

Brule Ne Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

7.5' topgraphic quadrangle showing exposures of bedrock formations and other geologic information.

41° 07'30" — 41° 15'

101° 45' — 101° 52'30"

Scale 1:24,000

Completed July 12, 1975

High resolution .tif file attached below as supplemental file

Collecting Nebraska's Colorful Agates, Roger K. Pagian

Conservation and Survey Division: Faculty and Staff Publications

The inexperienced gemstone collector may sometimes think of Nebraska as being a place Mother Natural forgot. Mother Nature, however, may be enjoying a little chuckle at the many gem collectors who drive right through Nebraska on their way to more exotic gem fields.