Method and importance of obtaining humic and fulvic acids of high purity
Ronald L. Malcolm
1976, Journal of Research of the U.S. Geological Survey (4) 37-40
A detailed procedure incorporating centrifugation, pressure filtration, dialysis, resin exchange, and freeze drying is given for the extraction and purification of fulvic and humic acids from soils and sediments. By use of the procedure humic acids have been prepared which have less than 0.22 percent ash. The isolation of relatively...
Oxygen isotopes of some trondhjemites, siliceous gneisses, and associated mafic rocks
F. Barker, I. Friedman, D.R. Hunter, J.D. Gleason
1976, Precambrian Research (3) 547-557
Analyses of oxygen isotopes in whole-rock samples of 58 Precambrian and Phanerozoic trondhjemites and siliceous gneisses and of 28 cogenetic mafic to intermediate rocks from North America, Fennoscandia, and southern Africa give the following results: 1. (1) 47 trondhjemites, tonalites, and mostly Archean acidic gneisses that apparently are not isotopically...
Holocene sedimentation history of the major fan valleys of Monterey fan
G.R. Hess, W. R. Normark
1976, Marine Geology (22) 233-251
There are three major fan valleys on upper Monterey fan. Deep-tow geophysical profiles and 40 sediment cores provide the basis for evaluation of the sedimentation histories of these valleys. Monterey fan valley leads from Monterey canyon to a major suprafan and is bounded by levees that crest more than 400...
Large sand waves on the Atlantic Outer Continental Shelf around Wilmington Canyon, off Eastern United States
H.J. Knebel, D. W. Folger
1976, Marine Geology (22) M7-M15
New seismic-reflection data show that large sand waves near the head of Wilmington Canyon on the Atlantic Outer Continental Shelf have a spacing of 100-650 m and a relief of 2-9 m. The bedforms trend northwest and are asymmetrical, the steeper slopes being toward the south or west. Vibracore sediments...
Revised Miocene and Pliocene diatom biostratigraphy of Upper Newport Bay, Newport Beach, California
J.A. Barron
1976, Marine Micropaleontology (1) 27-63
North Pacific diatom zones XXIII through IX of Schrader are recognizable in the middle Miocene to lower Pliocene stratigraphic section exposed around Upper Newport Bay in Newport Beach, California. Correlation with DSDP Site 173 and other stratigraphic sections in California allows the selection of diatom datums that are the most...
Recent limnological changes in southern Kootenay Lake, British Columbia
James E. Cloern
1976, Canadian Journal of Zoology (54) 1571-1578
n response to a significant abatement of phosphate loading and the construction of a dam on its major inflow (the Kootenay River), southern Kootenay Lake experienced a number of limnological changes between 1969 and 1974. Water temperatures in 1974–1975 were similar to those previously reported for 1966–1969. However, water transparency...
Geologic map of the Crestwood quadrangle, north-central Kentucky
Roy Clark Kepferle
1976, Geologic Quadrangle 1342
Geologic map of the Irvington quadrangle, Meade and Breckinridge Counties, Kentucky
Dewey Harold Amos
1976, Geologic Quadrangle 1331
Complete Bouguer and free-air gravity anomaly maps of the Delarof Islands and Tanaga Island, Alaska
D.L. Healey, J.D. Kibler
1976, Geophysical Investigations Map 908
Geologic map of the Garfield quadrangle, Breckinridge County, Kentucky
Dewey Harold Amos
1976, Geologic Quadrangle 1278
Geologic map of the Kite quadrangle, southeastern Kentucky
Edgar Neal Hinrichs, Charles L. Rice
1976, Geologic Quadrangle 1317
Geologic map of the Grove Center quadrangle, Kentucky-Illinois and part of the Shawneetown quadrangle, Kentucky
James Edward Palmer
1976, Geologic Quadrangle 1314
Geologic map of the Lake Owen quadrangle, Albany County, Wyoming
Robert Stroud Houston, Clarence J. Orback
1976, Geologic Quadrangle 1304
No abstract available....
Geologic map of the Mayking quadrangle, Letcher and Knott counties, Kentucky
Charles L. Rice
1976, Geologic Quadrangle 1309
Map showing configuration and thickness, and potentiometric surface and water quality in the Madison Group, Powder River basin, Wyoming and Montana
F. A. Swenson, W. R. Miller, W.G. Hodson, F. N. Visher
1976, IMAP 847-C
With development of the coal resources of the Powder River Basin of Wyoming and Montana the demand for water will increase greatly. The study upon which this report is based was designed to make a preliminary evaluation of the available geo-hydrologic data for the Madison Group, which is an extensive...
Geologic map of the Franklinton quadrangle, Henry County, Kentucky
A. B. Gibbons
1976, Geologic Quadrangle 1330
Geologic map of the Rumford quadrangle, Oxford and Franklin Counties, Maine
Robert Hadley Moench, C. T. Hildreth
1976, Geologic Quadrangle 1272
Geologic map of the Shaver Lake quadrangle, central Sierra Nevada, California
John P. Lockwood, Paul Charles Bateman
1976, Geologic Quadrangle 1271
Geologic map of the Blandford quadrangle, Hampden and Hampshire counties, Massachusetts
Norman L. Hatch, Rolfe S. Stanley
1976, Geologic Quadrangle 1312
Geologic map of the Claysville quadrangle, northeastern Kentucky
Stanley J. Luft
1976, Geologic Quadrangle 1341
Geologic map of the Mason quadrangle, Grant and Harrison Counties, Kentucky
Stanley J. Luft
1976, Geologic Quadrangle 1311
Geologic map of the Cedar City NW quadrangle, Iron County, Utah
J. Hoover Mackin, Willis Hoard Nelson, Peter D. Rowley
1976, Geologic Quadrangle 1295
Bouguer gravity map of the Okanogan, Sandpoint, Ritzville, and Spokane 1° x 2° quadrangles, northeastern Washington and northern Idaho
J. W. Cady, R. F. Meyer
1976, Geophysical Investigations Map 914
No abstract available....
Geologic map of the Fisherville quadrangle, north-central Kentucky
Roy Clark Kepferle
1976, Geologic Quadrangle 1321
Aeromagnetic map of Utah
Isidore Zietz, Ralph Shuey, J. R. Kirby Jr.
1976, Geophysical Investigations Map 907
No abstract available....
