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Articles 1741 - 1770 of 2260

Full-Text Articles in Earth Sciences

Geology Of North Craters Of The Moon National Monument, Idaho, William C. Sidle Apr 1979

Geology Of North Craters Of The Moon National Monument, Idaho, William C. Sidle

Dissertations and Theses

The purpose of the investigation was to map the geology of the north end of Craters of the Moon National Monument and surrounding area. A stratigraphic sequence of Late Paleozoic sedimentary and Tertiary volcanic rocks was compiles and the structures of these rocks and contact relationships with intrusions were delineated. Grade and facies of contact metamorphism were defined. The Snake River Plain basalts were also mapped. The sources of these flows were determined where possible. Preexisting structures and relationships of vents to earlier faulting were explored in ascertaining extensions of the Great Rift Zone into the Pioneer Mountains. Petrographic descriptions …


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.


Broadwater Nw Quadrangle, Morrill County, Nebraska, Robert F. Diffendal Jr. Jan 1979

Broadwater Nw Quadrangle, Morrill 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° 37'30" — 41° 45'

102° 52'30" — 103° 00'

Scale 1:24,000

Completed June 25, 1979

High resolution .tif file attached below as supplemental file


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?)


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 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.


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.


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.


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.


Martin Quadrangle, Nebraska—Keith County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr. Sep 1978

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

Robert F. Diffendal, Jr., Publications

Martin Quadrangle, Nebraska—Keith County

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

101°37'30" to 101°45'

41°15' to 41°22'30"

Ogallala Group

Completed September 20, 1978


Ogallala Sw Quadrangle, Nebraska—Keith And Perkins Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr. Sep 1978

Ogallala Sw Quadrangle, Nebraska—Keith And Perkins Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Ogallala SW Quadrangle, Nebraska—Keith and Perkins Counties

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

101°37'30" to 101°45'

41°00' to 41°07'30"

Post-Ogallala sand and gravel

September 20, 1978


Brule Se Quadrangle, Keith And Perkins Counties, Nebraska, Robert F. Diffendal Jr. Sep 1978

Brule Se Quadrangle, Keith And Perkins 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° 00' — 41° 07'30"

101° 45' — 101° 52'30"

Scale 1:24,000

High resolution .tif file attached below as supplemental file


Brule (Sw) Quadrangle, Keith And Perkins Counties, Nebraska, Robert F. Diffendal Jr. Sep 1978

Brule (Sw) Quadrangle, Keith And Perkins 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° 00' — 41° 07'30"

101° 52'30" — 102° 00'

Scale 1:24,000

High resolution .tif file attached below as supplemental file


Sutherland Reservoir Nw Quadrangle, Nebraska—Lincoln County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr. Jul 1978

Sutherland Reservoir Nw Quadrangle, Nebraska—Lincoln County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Sutherland Reservoir NW Quadrangle, Nebraska—Lincoln Co.

7.5 minute series (topographic), scale 1:24000

101°07'30" to 101°15'

41°07'30" to 41°15'

Ql = Loess, Post-Ogallala Sand and Gravel, Ogallala Outcrop

July 11, 1978


Nevens Quadrangle, Nebraska—Keith County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr. Jul 1978

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

Robert F. Diffendal, Jr., Publications

Nevens Quadrangle, Nebraska—Keith County

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

101°22'30" to 101°30'

41°07'30" to 41°15'

Ql = Loess

Post-Ogallala sand and gravels

Ogallala Outcrop

Volcanic ash

July 11, 1978


Paxton North Quadrangle, Nebraska—Keith And Lincoln Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr. Jul 1978

Paxton North Quadrangle, Nebraska—Keith And Lincoln Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Paxton North Quadrangle, Nebraska—Keith and Lincoln Counties

7.5 minute series (topographic), scale 1:24000

101°15' to 101°22'30"

41°07'30" to 41°15'

Ql=loess, Qsa=sand; Post-Ogallala sand and gravel; Ogallala Outcrop

July 7, 1978


Maxwell Quadrangle, Nebraska—Lincoln County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr. Jun 1978

Maxwell Quadrangle, Nebraska—Lincoln County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Maxwell Quadrangle, Nebraska—Lincoln County

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

100°30' to 100°37'30"

41°00' to 41°07'30"

Ogallala Outcrop

Completed June 7, 1978


List Of Geological Survey Geologic And Water-Supply Reports And Maps For Maine, U.S. Department Of The Interior - Geological Survey Jun 1978

List Of Geological Survey Geologic And Water-Supply Reports And Maps For Maine, U.S. Department Of The Interior - Geological Survey

Maine Collection

List of Geological Survey Geologic and Water-Supply Reports and Maps for Maine.

United States Department of the Interior - Geological Survey, June 1978.

Contents: Annual Reports / Mineral Resources of the United States / Monographs / Geologic Folios / Topographic Atlas of the United States, Folio 1 / Professional Papers / Bulletins / Water-Supply Papers / Circulars / Maps, Charts and Atlases



The Rush Creek Structure, Garden County, Nebraska, Robert F. Diffendal Jr. Apr 1978

The Rush Creek Structure, Garden County, Nebraska, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

Detailed field mapping of surface outcrops in southern Garden County, Nebraska, has revealed a drop of 200 feet in three miles in the elevation of the contact between the Ogallala and pre-Ogallala (probably Brule) Formations exposed on the east side of Rush Creek. Beds of silt, sand, siltstone, and volcanic ash in the are a locally dip to the northwest at angles of up to 8½°. The contact between the two formations cannot be seen on the west side of Rush Creek but beds in the Ogallala Formation there dip to the north and northeast. The unusually long valley of …


Geological And Botanical Features Of Sand Beach Systems In Maine And Their Relevance To The Critical Areas Program Of The State Planning Office, Bruce W. Nelson, L. Kenneth Fink Jr. Mar 1978

Geological And Botanical Features Of Sand Beach Systems In Maine And Their Relevance To The Critical Areas Program Of The State Planning Office, Bruce W. Nelson, L. Kenneth Fink Jr.

Maine Collection

Geological and Botanical Features of Sand Beach Systems in Maine and Their Relevance to the Critical Areas Program of the State Planning Office

by Bruce W. Nelson and L. Kenneth Fink, Jr.

"A Report Prepared for the Maine Critical Areas Program, State Planning Office, Augusta, Maine 04330 - Planning Report Number 54 (14 March 1978)."

Contents: Abstract / Foreword / Acknowledgements / Geology, Distribution, and Geomorphology of Maine's Coastal Sandy Beaches and Dune Systems / Methods of Locating Sandy Beaches and Dunes / General Consideration in Developing Criteria for Inclusion in the List of Significant Coastal Sandy Beaches and Dunes …


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.


Structural Geology Of The Brentwood-St. Paul Area, Northwest Arkansas, Mikel R. Shinn Jan 1978

Structural Geology Of The Brentwood-St. Paul Area, Northwest Arkansas, Mikel R. Shinn

Journal of the Arkansas Academy of Science

Photogeologic and field mapping of a 530 mi² area in southeastern Washington and southern Madison Counties, Arkansas, indicates that post-Atoka structural deformation occurred primarily through differential uplift of basement fault blocks. Northeast and east trending basement faults and fracture systems are present. Northeast trending features are related to the major fracture systems of the stable continental interior. They were initiated by shearing during Pre-Cambrian time and have subsequently acted as crustal zones of weakness along which mostly vertical movement has occurred. East trending basement faults may have originally developed as a result of tension between the stable Ozark uplift and …


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.


Morphology And Anatomy Of The Norwood Esker, Ontario, John Arthur Dixon Jan 1978

Morphology And Anatomy Of The Norwood Esker, Ontario, John Arthur Dixon

Theses and Dissertations (Comprehensive)

Over its 25 km. length the Norwood esker traverses two morphologically different areas, a northern section of kame, and a southern section of elongated drumlins. In the north the esker consists of single and multiple ridges: where multiple, the ridges are superimposed on a lower, broader, plateau-like base. In the south a high, steep-sided single ridge is present. In both areas, where single, the ridge splits locally into two narrower ridges which region a short distance downstream.

Internally, the esker contains mostly cross-laminated sands, tough-shaped and tabular sets of cross-bedded sands and gravel, and matrix-supported sandy gravels. The cross-laminated sands …


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.


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

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

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.