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Articles 57781 - 57810 of 58714
Full-Text Articles in Physical Sciences and Mathematics
Mineralogy And Genesis Of The Vermiculite Deposits At Libby, Montana, Raymond Kujawa
Mineralogy And Genesis Of The Vermiculite Deposits At Libby, Montana, Raymond Kujawa
Bachelors Theses and Reports, 1928 - 1970
The problem considered in this report is one of the mineralogy and mode of formation of the extremely pure, large bodies of vermiculite. Mineralogically the ultrabasic intrusive, with which the economic mineral is associated, presents an array of rather unusual minerals. The determination of these minerals, their associations, and the sequence of alteration that lead to the formation of the vermiculite bodies, constitutes the problem.
Induction Furnace Smelting Of Montana Chromite, Millard L. Reyner
Induction Furnace Smelting Of Montana Chromite, Millard L. Reyner
Bachelors Theses and Reports, 1928 - 1970
In 1939 the total world production of crude chromite was approximately 1,167,000 metric tons; of which the United States produced only 3,672 metric tons and imported over 317,500 metric tons. Imports came mostly from the Philippine Islands, Cuba, South Africa, and Rhodesia.
Chromite Deposits Near Red Lodge And Silver Star, Montana, Edmond F. Smigel
Chromite Deposits Near Red Lodge And Silver Star, Montana, Edmond F. Smigel
Bachelors Theses and Reports, 1928 - 1970
The Red Lodge and Silver Star chromite deposits of Montana have stimulated much interest during periods of war. The Red Lodge deposit is 25 miles southwest of Red Lodge which is also the nearest railroad point. Several workings are scattered throughout the area, exposing lense-like ore bodies averaging 33% chrome oxide. Silver Star is a much smaller deposit 5 miles west of Silver Star, Montana, which is its nearest railroad point. Lenses of chromite are exposed by pits and trenches, which average approximately 36% chromic oxide.
The Beneficiation Of Montana Silver Star Chromite Ore, Edwin J. Bride
The Beneficiation Of Montana Silver Star Chromite Ore, Edwin J. Bride
Bachelors Theses and Reports, 1928 - 1970
It is known that there are large deposits of chromium ore in Stillwater and Carbon Counties in South-Central Montana. The late James F. Kemp of Columbia University, stated in 1928, that these were the largest chromium deposits in the United States and probably in the world, although they were not considered of commercial grade as compared with foreign ores.
The Present Status Of The Soil Survey In Minnesota, P. R. Mcmiller
The Present Status Of The Soil Survey In Minnesota, P. R. Mcmiller
Journal of the Minnesota Academy of Science
No abstract provided.
An Investigation Of The Ores Of The Big Seven Mine, Neihart, Montana, Francis L. Wilson
An Investigation Of The Ores Of The Big Seven Mine, Neihart, Montana, Francis L. Wilson
Bachelors Theses and Reports, 1928 - 1970
During the course of this investigation of the ores of the Big Seven mine, Neihart, Montana, the writer has attempted, through a microscopic study of polished sections, to ascertain the hypogene or supergene character of the ore minerals present in the ore suite.
A Review Of The Daimonelix Problem, C. Bertrand Schultz
A Review Of The Daimonelix Problem, C. Bertrand Schultz
University Studies (University of Nebraska): Papers
THE first paleontological expedition of the University of Nebraska State Museum was organized in the summer of 1891 and was led by Erwin H. Barbour, now Director Emeritus of the Museum. The most important and interesting discoveries made during the season were some very peculiar spiral fossils called by the field party "Devil's Corkscrews," or Daimonelix,l which were found in the Miocene deposits near Harrison in Sioux County, Nebraska. During the fifty years that have intervened scientists have tried to determine the origin of these strange forms. Several controversies arose, and although various theories have been proposed, none as yet …
Geologic Field Mapping In An Area Eight Miles North Of Three Forks, Montana, H. E. Lillis
Geologic Field Mapping In An Area Eight Miles North Of Three Forks, Montana, H. E. Lillis
Bachelors Theses and Reports, 1928 - 1970
The Three Forks are includes parts of Jefferson, Madison, Broadwater Pond Gallatin counties, Montana. Sedimentary formations lie at the surface nearly everywhere in the area, and the rugged surface topography has been developed through the folding and tilting of these formations and their differential erosion.
M.T.A. Ensti̇tüsünün Yedi̇nci̇ Çalişma Yilinin Tekni̇k Bi̇lançosu, - -
M.T.A. Ensti̇tüsünün Yedi̇nci̇ Çalişma Yilinin Tekni̇k Bi̇lançosu, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Anadolu Ofi̇oli̇tleri̇ni̇n Yaşlarina Mütedai̇r Malumat, P. Arni̇
Anadolu Ofi̇oli̇tleri̇ni̇n Yaşlarina Mütedai̇r Malumat, P. Arni̇
Bulletin of the Mineral Research and Exploration
No abstract provided.
Thickness And Structural Study Of Major Divisions Of Cretaceous System In Nebraska, Paul Fuenning
Thickness And Structural Study Of Major Divisions Of Cretaceous System In Nebraska, Paul Fuenning
Department of Earth and Atmospheric Sciences: Faculty Publications
The purpose of this paper is to present isopach maps of certain stratigraphic divisions of the Cretaceous system and structure-contour maps of certain horizons of that system in Nebraska. Tables of factual data also are included. The maps indicate clearly that certain structural "highs" such as the Chadron-Cambridge axis and the Sioux Falls "high," in conjunction with a large well defined basin across central Nebraska and another deep basin west of the Chadron-Cambridge axis, dominated the structural and depositional history of Nebraska during the Cretaceous period.
Harbi̇ Umumi̇ Ve Son Ci̇han Savaşi Seneleri̇nde Dünya Madenci̇li̇ği̇, - -
Harbi̇ Umumi̇ Ve Son Ci̇han Savaşi Seneleri̇nde Dünya Madenci̇li̇ği̇, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Etütler Bazi Mi̇neral İsi̇mleri̇ne Dai̇r İncelemeler, Hadi̇ Yener
Etütler Bazi Mi̇neral İsi̇mleri̇ne Dai̇r İncelemeler, Hadi̇ Yener
Bulletin of the Mineral Research and Exploration
No abstract provided.
Kirşehi̇r-Boğazliyan Çayi Bölgesi̇ni̇n Jeoloji̇si̇ Ve Maden Kaynaklari, V. Stchtpi̇nsky
Kirşehi̇r-Boğazliyan Çayi Bölgesi̇ni̇n Jeoloji̇si̇ Ve Maden Kaynaklari, V. Stchtpi̇nsky
Bulletin of the Mineral Research and Exploration
No abstract provided.
Guleman Kromi̇t Yataklari, V. Kovenko
Guleman Kromi̇t Yataklari, V. Kovenko
Bulletin of the Mineral Research and Exploration
No abstract provided.
Dokümantasyon Maden Di̇rekleri̇ni̇n Muhafazasi, - -
Dokümantasyon Maden Di̇rekleri̇ni̇n Muhafazasi, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Dünya Maden Haberleri̇, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Yüksek Firin Cürufundan Çi̇mento, - -
Yüksek Firin Cürufundan Çi̇mento, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
İstati̇sti̇k Ve Fi̇yat, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Umumi̇ Maden Durumu Türki̇ye Madenci̇li̇ği̇ni̇n 1941 Bi̇lançosu, - -
Umumi̇ Maden Durumu Türki̇ye Madenci̇li̇ği̇ni̇n 1941 Bi̇lançosu, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
1941 De Dünya Madenci̇li̇ği̇, - -
1941 De Dünya Madenci̇li̇ği̇, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Etütler Petrol Bulunmasi, Cevad E. Taşman
Etütler Petrol Bulunmasi, Cevad E. Taşman
Bulletin of the Mineral Research and Exploration
No abstract provided.
Petrol Arama Sondajlari Mali̇yetleri̇, Kemal Lokman
Petrol Arama Sondajlari Mali̇yetleri̇, Kemal Lokman
Bulletin of the Mineral Research and Exploration
No abstract provided.
Türk Krom Cevherleri̇ndeki̇ İsti̇haleler, W. De Vi̇jkerslooth
Türk Krom Cevherleri̇ndeki̇ İsti̇haleler, W. De Vi̇jkerslooth
Bulletin of the Mineral Research and Exploration
No abstract provided.
Artvi̇n Bölgesi̇ Kuvarshane Bakir Madenleri̇, V. Kovenko
Artvi̇n Bölgesi̇ Kuvarshane Bakir Madenleri̇, V. Kovenko
Bulletin of the Mineral Research and Exploration
No abstract provided.
Türki̇yede Miknatis İnhi̇raflari, Hidayet Turanli
Türki̇yede Miknatis İnhi̇raflari, Hidayet Turanli
Bulletin of the Mineral Research and Exploration
No abstract provided.
Bursa İle Tercan Arasindaki̇ Bölgeni̇n Mukayeseli̇ Strati̇grafi̇si̇, V. Stehepi̇nsky
Bursa İle Tercan Arasindaki̇ Bölgeni̇n Mukayeseli̇ Strati̇grafi̇si̇, V. Stehepi̇nsky
Bulletin of the Mineral Research and Exploration
No abstract provided.
Küçük Yozgat Ci̇varinda Bulunan Memeli̇ Hayvanat Fosi̇lleri̇, B,S. Tschachtli̇
Küçük Yozgat Ci̇varinda Bulunan Memeli̇ Hayvanat Fosi̇lleri̇, B,S. Tschachtli̇
Bulletin of the Mineral Research and Exploration
No abstract provided.
Dünya Maden Haberleri̇, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
İstati̇sti̇k Ve Fi̇yatlar, - -
İstati̇sti̇k Ve Fi̇yatlar, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.