 | | Journal (article/letter/editorial) | | low-grade contact metamorphism-southwestern Brewster County, Texas MARVIN J. DRODDY Bendix Field Engineering...Austin, Texas AND JOHN C. BUTLER Department of Geology, University of Houston, Houston, Texas 77oo4 ...Intrusion of the Bee Mountain soda microsyenite plug in southwestern Brewster County, Texas established conditions...by the appearance of xanthophyllite followed by prehnite formed at the expense of xanthophyllite and montmorillonite...montmorillonite. Near the soda microsyenite contact prehnite has decomposed to yield grossular and epidote |  | | Journal (article/letter/editorial) | | Texas mineral locality INDEX Whereas Texas is well known for its vastness, cattle industry, and oil...I T S T O P O G R A P H Y A N D G E O L O G Y , Texas, the second largest state, has produced relatively...famous localities. A s this article will show, Texas has had—or currently has—nu merous mineral occurrences...produce good specimens; yet when specimens from Texas are sought in collections and dealers' stocks, few...some basic facts that help explain the situation. Texas has very little federal land in its mineralized |  | | Report (volume) | | 74, Ph miles east of Dutchtown, Cape Girardeau County, Mo. Type section cut by northtrending fault with...stream in NEIA sec. 33, T. 16 N., R. 14 E, Wayne County. Named after village of Abington, about 3 miles...lower divisions of the Pocono at Jim Thorpe, Bear Mountain Member and Silkmill Run Member, respectively....Cariblanca Formation in some areas on the basis of a study now in progress. Type locality: On route 149 from...Named for Adam Peak in Osgood Mountains, Humboldt County. Occupies belt about 21f2 miles long on western |  | | Book | | commercial ores and secondary minerals by state, county, township, and geologic range. For easy identification...cities, and many of today’s prosperous western county seats began as mining-boom camps. trating sand...Whether you such as those listed alphabetically by county, township, and range in Part II of this book. Where...in his work, that he may know first of all what mountain or hill, what valley or plain, can be prospected...examples of all rock types. Most so-called rocks are mountain-building materials; they are massive, colored |  | | Report (Issue volume) | | State mineral production and mineral production by county were prepared in the Division of Statistics and...Division of Geology. Texas: Bureau of Economic Geology, The University of Texas at Austin. Utah: Utah...and Ray C. Gilbert .. .' . . . . . . . . . . . • Texas, by Doss H. White, Jr., and L. Edwin Garner . ....this report. Name State____________ SECTION 2. County _ __ _ _ _ _ _ _ _ __ Stocks. production, end...298,452 34 .90 Tennessee 662,560 17 1.99 Texas 1,457,225 7 4.37 Utah Vermont 1,334,010 4 |  | | Report (issue) | | three decades of the nineteenth centm-y, when the study of rocks as such was being differentiated frmn that...different n1asses which would justify their chemical study. as a whole. As, . however, they became more and...interest. The great in1portance of this side of the study of rocks was. first clearly recognized by ~bich...im.portant results arrived at by Roth from his study of ~he analyses collected by him and first pub-...petrologists in· general that the study of igneous rocks is in large part the study of silicate solutions and |
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