Sulphate minerals of the Comstock Lode, Nevada
C. Milton, W. D. Johnston Jr.
1938, Economic Geology (33) 749-771
Seventeen representative samples of supergene sulphates from old workings on the Comstock Lode are described. They range from simple minerals such as gypsum and epsomite to complex aggregates of four or more distinct species. All are well known species except a mineral of the copper (chalcanthite) or magnesium sulphate pentahydrate...
Dolomite and jasperoid in the Metaline District, northeastern Washington
Charles Frederick Park
1938, Economic Geology (33) 709-729
The replacement ore bodies of the Metaline zinc-lead district, in northeastern Washington are limited to the greatly disturbed fault block through which the Pend Oreille River flows and are associated with the major faults but are not in them. They are mostly near the top of the Metaline limestone, of...
Two home-made traps for English sparrows
U.S. Bureau of Biological Survey
1938, Wildlife Leaflet 121
No abstract available....
Botulism, a recurring hazard to waterfowl: with notes on recent outbreaks in the United States and Canada, and Australia
E.R. Kalmbach
1938, Wildlife Leaflet 120
No abstract available....
Volcanic activity at Magnet Cove, Arkansas
C. S. Ross
1938, Eos, Transactions, American Geophysical Union (19) 263-264
The igneous rocks and the minerals of Magnet Cove, Arkansas, have long interested geologists and mineralogists, but in much of the area rock‐exposures are so sparse that many of the geologic, relations have remained obscure. However, recent prospecting and the mining of titanium ores have uncovered rocks that throw new...
Igneous activity in the Comstock District, Nevada
F. C. Calkins
1938, Eos, Transactions, American Geophysical Union (19) 262-262
The oldest igneous rocks in the Comstock District are amphibolites probably derived from basalts and of Triassic age. These are intruded by pre‐Tertiary quartz monzonlte and by granodiorite of Sierran facies, the latter not being exposed on the surface but found on mine‐dumps. Igneous activity recorded mainly in volcanic rocks...
Diabase dikes of the Franklin Furnace, New Jersey, quadrangle
C. Milton
1938, Eos, Transactions, American Geophysical Union (19) 264-264
Two of the numerous small dikes mapped on the areal geology sheet of the Franklin Furnace Folio (U.S. Geological Survey 161) as “Mostly basic, including nepheline tinguaite, leucite tinguaite, and camptonite” of post‐Ordovician age, have been found to be quite distinct from these alkalic rocks, and the two dikes in...
Role of physical chemistry in stratigraphic problems
George R. Mansfield
1938, Economic Geology (32) 335-549
Stratigraphy is concerned mainly with the genesis and interpretation of stratified rocks, which include some of wide extent and of great scientific as well as economic interest that are largely of chemical rather than of detrital origin. Chemical agencies have been recognized to some extent in genetic studies of these...
Precipitation and vegetation
Ralf R. Woolley, J.C. Alter
1938, Eos, Transactions, American Geophysical Union (19) 804-807
As time marches on, historians are usually quite faithful in recording the activities of man, and it will usually be found that Mother Nature is even more meticulous in reflecting and preserving her experiences, more especially with regard to climate and vegetation. Just how much the activities of man have...
A recording evaporimeter
J. Oliver, N.W. Cummings
1938, Eos, Transactions, American Geophysical Union (19) 609-612
The instrument herein described was originally designed and built to record the evaporation‐loss from a standard Weather Bureau pan for use in a study of the variation of flow in Santa Ana River. Valuable suggestions were made by various members of the Water Resources Branch of the Geological Survey in...
Ground‐water for air‐conditioning on Long Island, New York
R.M. Leggette, M.L. Brashears Jr.
1938, Eos, Transactions, American Geophysical Union (19) 412-418
During the last five years ground‐water has been more and more extensively used for air‐conditioning on Long Island, New York. The wide‐spread occurrence of highly permeable water‐bearing material and the relatively small cost of installation and operation of a ground‐water, air‐conditioning system has resulted in many such installations by theaters,...
Some mineral deposits of Glacier Bay and vicinity, Alaska
John Calvin Reed
1938, Economic Geology (33) 53-78
Prospecting in the Glacier Bay National Monument has been confined so far to granitic rocks near contacts with Paleozoic sediments, which they intrude.Near Reid Glacier thin veins, a few of which are traceable for about 300 feet both horizontaliy and vertically, trend northerly and carry sphalerite, galena, and pyrite. Gold...
Evaporation and runoff from snow in the Alpine Zone of our western mountains
Francois E. Matthes
1938, Eos, Transactions, American Geophysical Union (19) 662
In this informal paper the processes of snow‐wastage at high altitudes were discussed and a number of slides illustrating suncups and sunpits in different stages of development were shown. It was stressed that these features are peculiar to the region above the timber‐line, which biologists term the Alpine, or Arctic‐Alpine, Zone. That regions is,...
Manganese deposits of the Drum Mountains, Utah
Eugene Callaghan
1938, Economic Geology (33) 508-521
More than 15,000 tons of manganese ore has been produced from small deposits in the Drum Mountains in west-central Utah. Lenses of rhodochrosite, now largely weathered near the surface to manganese oxides, lie parallel to the bedding of Cambrian dolomites and shales near faults that are nearly normal to bedding....
Potash in the Permian Salt Basin
H. I. Smith
1938, Industrial and Engineering Chemistry (30) 854-860
No abstract available....
The origin of the iron ore deposits in the Bull Valley and Iron Springs districts, Utah
Francis Gerritt Wells
1938, Economic Geology (33) 477-507
A summary of the geology of the Bull Valley district, southwestern Utah, and a description of the occurrence of the magnetite and hematite deposits is given, as well as brief descriptions of the ore pits at Iron Mountain and Desert Mound 20 miles to the northeast, in which deposits formed...
Records of the drilled wells of the island of Oahu, Hawaii
Harold T. Stearns, Knute N. Vaksvik
1938, Bulletin 4
The description, location, log and meter tests of all the drilled wells on Oahu are given herein as of March 1 1938. Except for the discharges of plantation wells, which are published on pages 275 to 322 of Bulletin 1, head, chloride, and discharge records are listed only to the...
Outlook for further ore discoveries in the Little Hatchet Mountains, New Mexico
Samuel Grossman Lasky
1938, Economic Geology (33) 365-389
The Little Hatchet Mountains contain two mining districts, the Eureka silver-lead-zinc district and the Sylvanite gold district, the deposits of each being associated with a mass of monzonite that intrudes Lower Cretaceous sediments. The same formations crop out in both districts, having been duplicated by a large post-ore fault, and...
Planning for wildlife management: an outline
U.S. Division Of Wildlife Research
1938, Wildlife Leaflet 107
No abstract available....
The waterfowl situation: 1937-38
U.S. Bureau of Biological Survey
1938, Wildlife Leaflet 111
No abstract available....
Mineral resources of Alaska: report on progress of investigations in 1935
Philip S. Smith
1938, Bulletin 880
No abstract available....
Fort Niobrara Game Preserve, Nebraska
Clara Ruth
1938, Wildlife Leaflet 109
No abstract available....
Third special report of the Hawaiian Volcano Observatory of Hawaii National Park and the Hawaiian Volcano Research Association: Ash formations of the island Hawaii
Chester K. Wentworth
1938, Report
The purpose of the study was to determine the areal extent of the various volcanic ash formations, to describe them petrographically and to develop means of discriminating them. The ash formations, long known in a general way, had been only casually observed by geologists. Their interpretation and separation from other...
Ash formations of the Island of Hawaii
C.K. Wentworth
1938, Hawaiian Volcano Observatory Special Report 3
No abstract available....
The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1938
1938, Report
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included.The Volcano Letter...
