 | | Book | | milky quartz stems. Denny Mountain area of King County. Specimen from the collection of Cary A. Maykut...DESCRIPTIONS 21 ABBREVIATIONS 24 GLOSSARY 25 COUNTY INDEX OF MINERAL OCCURRENCES 29 MINERAL DESCRIPTIONS...physical shape (usually a crys tal). Colorless or white, six sided crystals of quartz are a familiar and...(using a code explained on page 21) and a county by county list mentioning the nature of their occurrence...Parks and Monuments prohibit all collecting. state, county and city parks usually prohibit collecting. Please |  | | Report (issue) | | Abstract/RĂ©sumĂ© 1 Introduction 2 Collecting along the route 2 Units of measurement 3 A brief...quarry RenfrewâMadawaska area Renfrew County Road 4 (Bruce Avenue) roadcut Highway 60 quarry Jamieson marble...Carswell quarry Bryson marble blocks Bryson roadcut 1 Bryson roadcut 2 New Calumet mine Calumet uranium occurrence... 1. Rock formations referred to in text Figure 2 viii 1. Map showing the collecting routes Maps...117 119 124 126 130 133 135 145 154 158 165 166 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. |  | | Report (issue) | | --------- 1 Location and description of study 2 area--------------------------------- 6 New River...of the Eggleston and Newport 7 1/2-minute quadrangles, Giles County, Virginia--------------------------...pocket Page Plate 2. Surficial geologic map of part of the Eggleston and Newport 7 1/2-minute quadrangles...quadrangles, Giles County, Virginia--------------------------- Figure 1. In pocket Location of the study area...Central and Southern Appalachians--------------- 2. 7 Map of part of the New River in North Carolina |  | | Journal (article/letter/editorial) | | hemoilmenite, and ilmeno-hematite; (2) pale brown mica, sillimanite, magnetite, and ilmenohematite; and...rutilo-hematite, rutile, and meagre silicates including sillimanite, muscovite, and chlorite. Diabase altered to...analyzed mineral assemblages of the Fe2O3-FeO âą TiO 2 -TiO 2 system with 12-16 weight percent total TiO2, the...borders of titaniferous hematite. The maximum TiO 2 Downloaded from http://petrology.oxfordjournals.org/...micro-intergrowths of ilmenite. Ferrianilmenite, FeOTiO 2 with 6 to 13 percent Fe2O3 and up to perhaps 3 or |  | | Book | | Proc ucicn with an example from Taos, New Mexico, USA James M. Barker Tue FLanks oF THE RiFt - Second-day...from the U.S. Hill mine, Picuris Mountains, Taos County, New Mexico James 79 Austin 90 PENasco To EspaNova...characteristics of the northern Embudo fault, Taos County, New Mexico Seekers ieuus K.1. Kelson, PW. Bauer...hydrogeolo c asst flow on the Rio Grande, Taos County, New Mexico sment of the southern Sangre de Cristo...fault at the Taos Pueblo . PW. Bauer site, Taos County, New Mexico _ KL. Kelson, PW. Bauer, S.D. Connell |  | | Report (issue) | | Table of Contents Introduction 2 2 Day 1 Road Log and Field Trip Guide 2 Papers 14 Excerpts from "Base-...Huron-Victor-Swindler-Montezuma prospects, Yavapai County, Arizona," by P. F. O'Hara and R. C. Long 21 Excerpts...Early Proterozoic massive sulfide deposit, Yavapai County, Arizona," by Ed DeWitt 25 Excerpts from "Early...Special Paper 235, p. 155, 160, 162, and 163 28 Day 2 32 Road Log and Field Trip Guide 32 Papers 32 Excerpts...Figure 1 . Geologic map of the Prescott area 4 Figure 2. Geologic map of the , 'ayer area 10 Figure 3. Geologic |  | | Journal (article/letter/editorial) | | No. 1525. 1 Contr. Mineral. and Petrol., Vol. 19 2 H.P. TAYLOR, J~.: and an oxygen-bearing fluid (I-I~O...crystallization as a process of magmatic differentiation; (2) whether assimilation of country rock plays an important...platonic and hypabyssal igneous rocks are given in Table 2. In all cases, oxygen was extracted from the minerals...500--600~ (see TAYLO~ and EPST~I)z, 1962a); generally, 2 or more extractions were done on each sample. The...analytical error is âą per rail for O1s/O16 and ~= 2--3 per rail for D/H. In this study, we are interested |  | | Report (volume) | | ------------------------------------------ 1 1 2 5 5 7 TABLE Page Major stratigraphic and time divisions...time boundaries in millions of years Holmes 1 Kulp 2 1--1 11-13 25-25 4Q--36 60-58 70-63 135-135 18Q-181...Edinburgh Geol. Soc., Trans. v. 17, pt. 3, p. 204). 2 Ages given are the Kulp time scale (Kulp, J. Laurence...geographic occurrence, and pertinent references, (2) a list of sedin1entary fonnations arranged alphabetically...United States (including Alaska)," also called 1 2 LEXICON OF GEOLOGIC NAMES OF UNITED STATES the Wilmarth |  | | Report (issue) | | ~ 1 l M ~...,.., .,..,,. II , ''< ~\ ,r-"' 2:'. .tJ;g ~? 7 â \ 4 ...:i~'.-.-- . .... Q ...RESOURCES OF SANTA YSABEL QUADRANGLE SAN DIEGO COUNTY, CALIFORNIA Price $1.50 LIBRARY :UNIVERSJTY OF...quadrangle , San Diego County, California. San Francisco, 1958 . 39 p. illus., maps (2 fold. col. in pocket)...Diego Co. TN24.C2A3 no. 177 - - - Copy 2. Library of Congress 2. 1\1ines and mineral rer. Tille. (Series)...resources of Santa Ysabel quadrangle, San Diego County, Californ ia, prepared for publication 1958 under |  | | Report (issue) | | Tocantins complex, Niquelandia, Goias, Brazil, by R. W. White, Jorge. Motta, and V. A. de Araujo Page D1 9 13...lacustrine Pliocene tuffs near Wikieup, Mohave County, Ariz., by R. A. Sheppard and A. J. Gude 3d . ...Weber County, Utah, by T. E. Mullens 89 99 105 Sedimentation Growth and movement of dunes at White Sands...phosphate contents of water of southern Nassau County, N.Y., by N. M. Perlmutter an:d Ellis Koch ......observation wells, Muddy Creek basin, southeastern York County, Pa., by D. J. Growitz and 0. B. Lloyd, Jr. . |  | | Report (issue) | | by Jaime Roldan-Quintana. 10RD S827 6 (544 3) 2 Contents DIT ORUCHOR was re eee oss 8S ERs Ue ee...ealupe wu) le Oe te eee nae aa a sete * 8S iney 2 ; âa : and . Ă© ce yates bites Raat tomcat eo...Geological Society of America Special Paper 254. 2 E. PĂ©rez-Segura and C. Jacques-Ayala enough, sedimentation...MĂ©xico Instituto de Geologia Boletin, no. 64, parte 2, p. 11-44. Damon, P. E., Shafiqullah, M., and Clark...(Nordwest Mexico): Eclogae Geologic Helvetiae, v. 21, no. 2, p. 327-335. King, R. E., 1934, Geological reconnaissance | | | Report (issue) | | Photograph by Jaime RoldĂ©n-Quintana. WD BT 6 se 3 2 ii Contents Introduction EfrĂ©n PĂ©rez-Segura and...Paper 254. E. PĂ©rez-Segura and C. Jacques-Ayala 2 enough, sedimentation in the three regions corresponds...received more years. The publications by Ortlieb (1986, 2 boundary in space and the opening of the Gulf sion...MĂ©xico Instituto de Geologia Boletin, no. 64, parte 2, p. 11-44. Damon, P. E., Shafiqullah, M., and Clark...(Nordwest Mexico): Eclogae Geologic Helvetiae, v. 21, no. 2, p. 327-335. King, R. E., 1934, Geological reconnaissance |  | | Book | | CB2 1RP 40 West 20th Street, New York, NY 10011, USA 10 Stamford Road, Oakleigh, Melbourne 3166, Australia...Archean Paleobiology: Problems and Perspectives 2. Geological Evolution of the Proterozoic Earth Donald...Introduction 4.6.2 The Three-Stage Model for the Rise of O 2 4.6.3 Development of the Modern Aerobic (Stage III)...Cycles and Their Effects on O 2 4.6.5 Modern and Ancient Controls on O 2 4.6.6 Ozone and Other Trace Gases...and Possible Greenhouse Gases 4.7.3 Proterozoic CO 2 Levels from Climate Model Calculations 4.7.4 The Late |
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