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Articles 781 - 810 of 1147

Full-Text Articles in Stratigraphy

Annual Departures From Average Annual Precipitation In Nebraska, 1850-1979, Conservation Survey Division Jan 1980

Annual Departures From Average Annual Precipitation In Nebraska, 1850-1979, Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Groundwater Levels In Nebraska, 1979, Martin S. Johnson, Darryll T. Pederson Jan 1980

Groundwater Levels In Nebraska, 1979, Martin S. Johnson, Darryll T. Pederson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Mineral Operations Review, 1979, Raymond R. Burchett, Duane A. Eversoll Jan 1980

Nebraska Mineral Operations Review, 1979, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1980 Jan 1980

Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1980

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska County Map Jan 1980

Nebraska County Map

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geology And Groundwater Supplies Of Box Butte County, Nebraska, 1979, V. L. Souders, F. A. Smith, J. B. Swinehart Jan 1980

Geology And Groundwater Supplies Of Box Butte County, Nebraska, 1979, V. L. Souders, F. A. Smith, J. B. Swinehart

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Collecting In Nebraska's Glacial Deposit, John Boellstorff Jan 1980

Collecting In Nebraska's Glacial Deposit, John Boellstorff

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geology Along The Republican River Valley Near Red Cloud, Nebraska, R. K. Pabian, J. B. Swinehart Jan 1980

Geology Along The Republican River Valley Near Red Cloud, Nebraska, R. K. Pabian, J. B. Swinehart

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Analysis And Interpretation Of The 5,000 Ft. (1,538 M) Red-Bed Sequence Encountered In The Sparks E̲T̲ A̲L̲. #1-8 (Michigan Basin Deep Borehole), John H. Fowler Dec 1979

Analysis And Interpretation Of The 5,000 Ft. (1,538 M) Red-Bed Sequence Encountered In The Sparks E̲T̲ A̲L̲. #1-8 (Michigan Basin Deep Borehole), John H. Fowler

Masters Theses

A 5,000 ft (1,538 m) pre-Mt. Simon (Upper Cambrian) red-bed sequence, encountered in the Gratiot County deep borehole (Sparks et al. #1-8) and herein na~ed the North Star Formation, consists of undeformed recurring beds of immature arkosic sandstone 2 to 34 in. (5 to 85 cm) thick. These beds grade upward from erosional basal contacts into mudstone units 1 in to 12 ft (3 cm to 3.8.m) thick. Within the sandstones, grading, horizontal lamination, and crossstratification define Bouma intervals "a", "b", and "c", which combine to form incomplete Bouma sequences. Mudstones exhibit abundant horizontal laminations. Secondary sedimentary structures (load . …


Interpretive Study And Numerical Model Of The Hydrogeology Upper Big Blue Natural Resources District., Ralph E. Cady, Marilyn H. Ginsberg May 1979

Interpretive Study And Numerical Model Of The Hydrogeology Upper Big Blue Natural Resources District., Ralph E. Cady, Marilyn H. Ginsberg

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Gering Formation (Miocene) Pumice Conglomerate And Associated Beds From Broadwater, Nebraska, Robert F. Diffendal Jr. Mar 1979

A Gering Formation (Miocene) Pumice Conglomerate And Associated Beds From Broadwater, Nebraska, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

The Mitchell Pass Member of the Gering Formation was defined by Vondra, Schultz, and Stout in 1969 on the basis of exposures in the Wildcat Ridge area of western Nebraska. The basal part of the member in many areas of Wildcat Ridge is a pumice-pebble conglomerate bed. A newly discovered pumice-pebble conglomerate locality occurs north of Broadwater, Nebraska, some twenty miles east of the easternmost previously reported exposure of the pumice conglomerate at Redington Gap on Wildcat Ridge. Pumice samples from Redington Gap and Broadwater have the same index of refraction and similar inclusions. Beds above the conglomerate and below …


Tree Root Systems In Eastern Nebraska, John A. Sprackling, Ralph A. Read Feb 1979

Tree Root Systems In Eastern Nebraska, John A. Sprackling, Ralph A. Read

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geologic History Of Scotts Bluff National Monument, Roger K. Pabian, James B. Swinehart Iii Feb 1979

Geologic History Of Scotts Bluff National Monument, Roger K. Pabian, James B. Swinehart Iii

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Inferred Areal Extent Of The Oligocene (White River Group) Chadron Basal Sand, Conservation And Survey Division, University Of Nebraska-Lincoln Jan 1979

Inferred Areal Extent Of The Oligocene (White River Group) Chadron Basal Sand, Conservation And Survey Division, University Of Nebraska-Lincoln

Conservation and Survey Division: Faculty and Staff Publications

Inferred Areal Extent of the Oligocene (White River Group) Chadron Basal Sand. Map. No Scale. Nebraska High Plains-Ogallala Aquifer Study Area series. Lincoln: University of Nebraska. Print. (date unknown, 1979?)


Paleoclimatic Implications Of Oxygen Isotope And Sedimentological Study Of Late Miocene And Early Pliocene Sediments From The South Atlantic, Western Indian Ocean, And The Gulf Of Aden, Kathryn M. Scanlon Jan 1979

Paleoclimatic Implications Of Oxygen Isotope And Sedimentological Study Of Late Miocene And Early Pliocene Sediments From The South Atlantic, Western Indian Ocean, And The Gulf Of Aden, Kathryn M. Scanlon

Geology Theses and Dissertations

Previous work by many authors has implied that the Antarctic ice sheet underwent a major expansion in the latest Miocene. It was intended in the present study to use the oxygen isotope event, which could be expected to accompany this glacial expansion, as a stratigraphic marker to aid in the correlation of several DSDP Sites. Samples were taken at approximately 100,000 year intervals throughout the latest Miocene and early Pliocene sections at Sites 237 and 249 in the western Indian Ocean, Site 360 in the South Atlantic and Site 231 in the Gulf of Aden. Oxygen isotope analyses were done …


The Development Of Foliations In Low, Medium And High Grade Metamorphic Tectonites, William J. Gregg Jan 1979

The Development Of Foliations In Low, Medium And High Grade Metamorphic Tectonites, William J. Gregg

Geology Theses and Dissertations

Studies of foliation and associated microstructures are presented from a variety of rock types and localities in the metamorphic terrains of the northeastern United States.
At Islesboro, Maine cleavage is well developed in lower greenschist grade siltstones and interbedded pelites of lower Paleozoic age. Cleavage in the siltstone units consists of two types of discrete mica films: short film segments and lengthened mica film. Thick secondary mica-rich layers are also exhibited in some siltstones. The short film segments appear to be basic elements through which cleavage development progresses by a linkage process that is poorly understood. The linkage of these …


Availability And Use Of Water In Nebraska, 1975, R. Bentall, F. B. Shaffer Jan 1979

Availability And Use Of Water In Nebraska, 1975, R. Bentall, F. B. Shaffer

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Lithostratigraphy Of The Cane Hill Member Of The Hale Formation (Type Morrowan), Northwest Arkansas, Robert T. Liner Jan 1979

Lithostratigraphy Of The Cane Hill Member Of The Hale Formation (Type Morrowan), Northwest Arkansas, Robert T. Liner

Journal of the Arkansas Academy of Science

The Hale Formation (lower Morrowan Series) is a sequence of sandstones and shales divided into the Cane Hill(lower) and Prairie Grove Members. In Washington County, Arkansas, the type Cane Hill consists predominantly of interbedded fine-grained, noncalcareous sandstones and silty shales often with a pebble conglomerate at its base. The member rests unconformably on Chesterian Strata of either the Pitkin Formation or underlying Fayetteville Formation, and it is unconformably overlain by the Prairie Grove Member. In Washington County, the Cane Hill exhibits a slight thickening trend to the south and east. Interpretation of sedimentary structures indicates that the Cane Hill was …


Pre-Tertiary Subcrop Rocks In The Nebraska Panhandle, Conservation And Survey Division, University Of Nebraska-Lincoln Jan 1979

Pre-Tertiary Subcrop Rocks In The Nebraska Panhandle, Conservation And Survey Division, University Of Nebraska-Lincoln

Conservation and Survey Division: Faculty and Staff Publications

Pre-Tertiary Subcrop Rocks in the Nebraska Panhandle. Map. No Scale. Nebraska High Plains-Ogallala Aquifer Study Area series. Lincoln: University of Nebraska. Print. (date unknown, 1979?)


The Mississippian And Pennsylvanian (Carboniferous) Systems In The United States-Nebraska, R. R. Burchett Jan 1979

The Mississippian And Pennsylvanian (Carboniferous) Systems In The United States-Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

Nebraska is underlain by rocks of Mississippian and (or) Pennsylvanian age in all but the extreme northeastern part of the State. Only some of the Upper Pennsylvanian strata are exposed; outcrops of these rocks are limited to southeaster Nebraska. This work is published as Conservation and Survey Division GSI-5 and as U.S. Geological Survey PP-1110-P.


Nebraska Mineral Operations Review, 1978, Raymond R. Burchett, Duane A. Eversoll Jan 1979

Nebraska Mineral Operations Review, 1978, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

During 1978, there were active in Nebraska 33 limestone quarries; 593 sand, gravel and silt or siltstone pits; 7 clay or shale pits; 21 sandstone pits; and 1 peat pit. These 655 mining operations disturbed 892 acres and restored 363 acres during the year. Available as PDF.


Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1979 Jan 1979

Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1979

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Groundwater Levels In Nebraska, 1978, Darryll T. Pederson, Martin S. Johnson Jan 1979

Groundwater Levels In Nebraska, 1978, Darryll T. Pederson, Martin S. Johnson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Groundwater Levels In Nebraska, 1977, Michael J. Ellis, Darryll T. Pederson Dec 1978

Groundwater Levels In Nebraska, 1977, Michael J. Ellis, Darryll T. Pederson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Tertiary Stratigraphy Of The Niobrara River Valley, Marsland Quadrangle, Western Nebraska, Conservation And Survey Division Jan 1978

Tertiary Stratigraphy Of The Niobrara River Valley, Marsland Quadrangle, Western Nebraska, Conservation And Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1978 Jan 1978

Nebraska Groundwater Level (Decline & Rise) And Location Of Registered Wells, 1978

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Water Resources Of Seward County, Nebraska, C. F. Keech Jan 1978

Water Resources Of Seward County, Nebraska, C. F. Keech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Regional Tectonics And Seismicity Of Eastern Nebraska, Annual Report June 1, 1978- May 30, 1979, R. R. Burchett Jan 1978

Regional Tectonics And Seismicity Of Eastern Nebraska, Annual Report June 1, 1978- May 30, 1979, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Need For Redefinition Of North American Pleistocene Stages, J. D. Boellstorff Jan 1978

A Need For Redefinition Of North American Pleistocene Stages, J. D. Boellstorff

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Mineral Operations Review, 1977, Raymond R. Burchett, Duane A. Eversoll Jan 1978

Nebraska Mineral Operations Review, 1977, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.