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Geologic map of the Bee Spring quadrangle, Edmonson and Grayson Counties, Kentucky

Benjamin Gildersleeve

1968, Geologic Quadrangle 757

Regional geologic map of the Shunknak and southern part of the Ambler River quadrangles, Alaska

W. W. Patton Jr., T. P. Miller, I.L. Tailleur

1968, IMAP 554

Geologic map of the Heath quadrangle, Massachusetts and Vermont

Norman L. Hatch, Joseph H. Hartshorn

1968, Geologic Quadrangle 735

No abstract available....

Gold in meteorites and in the earth's crust

Robert Sprague Jones

1968, Circular 603

The reported gold contents of meteorites range from 0.0003 to 8.74 parts per million. Gold is siderophilic, and the greatest amounts in meteorites are in the iron phases. Estimates ,of the gold content of the earth's crust are in the range of 0.001 to 0.006 parts per million....

Geologic map of the Banty Point quadrangle, Rio Blanco County, Colorado

Henry L. Cullins, John R. Dyni

1968, Geologic Quadrangle 703

Surficial geologic map of the West Torrington quadrangle, Litchfield County, Connecticut

Roger B. Colton

1968, Geologic Quadrangle 727

Geochemical evidence for possible concealed mineral deposits near the Monticello Box, northern Sierra Cuchillo, Socorro County, New Mexico

Wallace R. Griffitts, Henry V. Alminas

1968, Circular 600

Redescription of Upper Devonian conodont genera and species proposed by Ulrich and Bassler in 1926

John Warfield Huddle

1968, Professional Paper 578

Engineering geology of the Paducah East quadrangle in Kentucky

Thomas C. Nichols Jr.

1968, Bulletin 1258-A

Metal absorption by Equisetum (horsetail)

Helen L. Cannon, Hansford T. Shacklette, Harry Bastron

1968, Bulletin 1278-A

Studies of consumptive use of water by phreatophytes and hydrophytes near Yuma, Arizona

C. C. McDonald, G.H. Hughes

1968, Professional Paper 486-F

Summary report on the geology and mineral resources of the Okefenokee National Wildlife Refuge, Georgia

Jack Elwood Smedley

1968, Bulletin 1260-N

Hydrology for urban land planning - A guidebook on the hydrologic effects of urban land use

Luna Bergere Leopold

1968, Circular 554

This circular attempts to summarize existing knowledge of the effects of urbanization on hydrologic factors. It also attempts to express this knowledge in terms that the planner can use to test alternatives during the planning process. Because the available data used in this report are applied to a portion of...

A solid-inclusion borehole probe to determine three-dimensional stress changes at a point in a rock mass

Thomas C. Nichols Jr., John F. Abel Jr., Fitzhugh T. Lee

1968, Bulletin 1258-C

Summary report on the geology and mineral resources of Flattery Rocks, Quillayute Needles, and Copalis National Wildlife Refuges, Washington

Albert Edward Weissenborn, Parke Detweiler Snavely Jr.

1968, Bulletin 1260-F

Summary report on the geology and mineral resources of the Huron, Seney, Michigan Islands, Green Bay, and Gravel Island National Wildlife Refuges of Michigan and Wisconsin

Carl E. Dutton

1968, Bulletin 1260-I

Geology of the crystalline rocks in the western part of the Morrison quadrangle, Jefferson County, Colorado

Dolores J. Gable

1968, Bulletin 1251-E

Preliminary materials map of the North Adams quadrangle, Massachusetts-Vermont

George William Holmes

1968, Open-File Report 68-133

No abstract available....

Geologic map of the Trail Ridge quadrangle, Nye County, Nevada

Robert L. Christiansen, Donald C. Noble

1968, Geologic Quadrangle 774

Aeromagnetic map of the Tuscarora quadrangle, Elko County, Nevada

F. A. Petrafeso, C. L. Long

1968, Open-File Report 68-291

No abstract available....

Geologic map of southeastern part of Lander County, Nevada

John H. Stewart, Edwin H. McKee

1968, Open-File Report 68-260

Application of ultraviolet reflectance and stimulated luminescence to the remote detection of natural materials

William R. Hemphill

1968, Open-File Report 68-126

Carbonate rocks and evaporite deposits commonly exhibit relatively high reflectance in the ultraviolet (<3600A), and some outcrops of these materials are selectively shown on ultraviolet imagery. Other materials which are commonly strongly imaged on ultraviolet imagery and photography include water, snow, concrete, and metallic objects, particularly aluminum.Outdoor tests of an...

Geologic map of the complex of alkalic rocks at Iron Hill, Gunnison County, Colorado

D. C. Hedlund, J. C. Olson

1968, Open-File Report 68-124

No abstract available....

Determination of discharge during pulsating flow

T. H. Thompson

1968, Water Supply Paper 1869-D

Pulsating flow in an open channel is a manifestation of unstable-flow conditions in which a series of translatory waves of perceptible magnitude develops and moves rapidly downstream. Pulsating flow is a matter of concern in the design and operation of steep-gradient channels. If it should occur at high stages in...

Aeromagnetic map of part of the Jarbidge quadrangle, Elko County, Nevada

F. A. Petrafeso, C. L. Long

1968, Open-File Report 68-286

No abstract available....