 | John, David A., Lee, Robert G., Breit, George N., Dilles, John H., Calvert, Andrew T., Muffler, L.J. Patrick, Clynne, Michael A. (2019) Pleistocene hydrothermal activity on Brokeoff volcano and in the Maidu volcanic center, Lassen Peak area, northeast California: Evolution of magmatic-hydrothermal systems on stratovolcanoes. Geosphere, 15. 946-982 doi:10.1130/ges02049.1 | Journal (article/letter/editorial) | | volcano and in the Maidu volcanic center, Lassen Peak area, northeast California: Evolution of magmatic-hydrothermal...MS 901, 345 Middlefield Road, Menlo Park, California 94025, USA Mineral Deposits Research Unit, University...Denver, Colorado 80225, USA 4 Oregon State University, Corvallis, Oregon 97331, USA 5 Volcano Science Center...MS 910, 345 Middlefield Road, Menlo Park, California 94025, USA 1 14 figures; 5 tables; 1 set of supplemental...volcano and in the Maidu volcanic center, Lassen Peak area, northeast California: Evolution of magmatic-hydrothermal |  | | Report (issue) | | the act was passed were incorporated into the National Wilderness Preservation System, and some of them...contiguous roadless area (6069), Gifford Pinchot National Forest, Skamania and Yakima Counties, Washington...voluminous (behind Mount Shasta) and third highest (behind Mount Rainier and Mount Shasta) stratovolcano in...surface of moderate to rugged relief cut into volcanic (and subordinate volcaniclastic) rocks of Tertiary...Washington, which includes the Simcoe Mountains volcanic field 12-40 mi (20-65 km) east and southeast (Sheppard |  | | Report (volume) | | gov/ Published in the Western Region, Menlo Park, California Manuscript approved for publication October...18 5. Heterolithic breccia (lahar) in the Fifes Peak Formation ........................................this alteration resulted in severely weakened volcanic edifices that were susceptible to failure and...Greenwater. 1 U.S. Geological Survey, Menlo Park, California. U.S.Geological Survey, Vancouver, Washington...quarry on left. Andesitic lava flows of the Fifes Peak Formation are quarried for crushed rock. 5.0 Mud |  | | Report (issue) | | Church Creek Formation near Monterey,central California, by E. E. Brahb, David Bukry, and R. L. Pierce... • . • • . . . Carbonate clasts in epiclastic volcanic rocks and their paleotectonic implications, Blue...Mineralogy Clay minerals, Longfellow mine, San Juan County, Colo., by R. G. Luedke and J. W. Hosterman .....C146 151 Geophysics Microearthquakes near Lassen Peak, Calif., by J.D. Unger and J. M. Coakley . ....studies of gold deposits in the Teton National Forest, Teton County, Wyo., by L. A. Anderson •.•• • • · |  | | Journal (article/letter/editorial) | | GEOBIOLOGY OF LASSEN VOLCANIC NATIONAL PARK Secondary minerals associated with Lassen fumaroles and...springs, fumaroles, and mud pots of the southwestern Lassen hydrothermal system include various alteration...support a previously identified model that the Lassen hydrothermal system involves the de-coupling of...near Home Plate in the Columbia Hills on Mars, Lassen can serve as a useful terrestrial analog for comparison...mobility Introduction The Lassen hydrothermal system in northern California is the largest active hydrothermal |  | | Journal (article/letter/editorial) | | quartz. Intensephase--Quartz,pyrite, kaolin (dickite), zunite,alunite,zoisite. The more intensephaseis...Inner sub-zone. Dickite, beidellite,halloysiteetc. Inner zone. Sericite,hydrousmica, dickite,quartz, adularia...Sericite zone. subzone. Sericite,quartz,pyrite, dickite,alunite. SantaRita, (Chino) New Mexico (11, 13)..., and Allen, E. T., 1925, Volcanic activity and hot springs of Lassen Peak: Carnegie Inst. Pub. 360,...9. 7. Emmons, S. F., 1896, The mines of Custer County, Colorado: U.S. Geol. Survey. 17th Ann. Rept., |  | | Journal (article/letter/editorial) | | therockto an aggregate of quartz, pyrite, kaolin (dickite), and alunite. It shouldbe em- phasized thatthecomplete...sericite and by the developmentof alunite, kaolin (dickite), zunyite, zoisite,and an unknownmineral,as well...The increasein index of 4 Alunite and kaolin (dickite) are never seendirectly replacingfresh feldspar;...completelyaltered to quartz, fine-grained kaolin (dickite) and alunite; fine-grained dark areas are kaolin...coloredbladesare alunite. The groundmassis quartz and some dickite. X-nicols. X 25. FI•. 4 (bottom). Agglomerate completelyaltered |  | | Journal (article/letter/editorial) | | ................................... Nacrite, Dickite and Kaolinite: Andalusite, Sillimanite, Topaz,...of a dissertation on "Interrelated Problems of Volcanic Activity and Ore Genesis," Harvard University...the sameeffecton sericitein the hot springsat Lassen Peak. They concluded that: "kaolin is a productof... L. and Allen, E. T.: The volcanic activity and hot springs of Lassen Peak. Carnegie Inst., Wash., Pub...halogensaltsand thoseof the sulphates. Nacrite, Dickite and Kaolinire: .dndalusite,Sillimanite, Topaz, |  | | Journal (article/letter/editorial) | | THE ORIGIN GEOLOGY MAY, 1941 OF THE TUNGSTEN COUNTY, T. No. 3 ORES OF BOULDER COLORADO. • S. LOVERING...of sericitic alteration encases the Boulder County ferberite veins, but gives way abruptlyto a wide... Index map showing the location of the Boulder County tungsten belt and the general features of the regional...regional geology. TUNGSTEN ORES OF BOULDER COUNTY. 231 narrow belt from ArkansasMountain,9• milesW-SW...George,R. D.: The main tungstenarea of Boulder County, Colorado,with notes on the intrusiverocks by |  | | Journal (volume) | | STATE OF CALIFORNIA EARL WARREN, Governor DEPARTMENT OF NATURAL RESOURCES WARREN IIANNUM, T. Director...1948 No. CALIFORNIA JOURNAL OF MINES AND GEOLOGY LIBRARY 1 UNIVERSITY OF CALIFORNIA DAVIS 1 ... ; STATE OF CALIFORNIA Earl Warren, Governor DEPARTMENT OF NATURAL RESOURCES Warren T. Hannum,...a service laboratory for the determination of California minerals and a conference room with a mining...mineral industry, geology, and mining operations of California is distributed to the public by means of publications |  | du Bray, Edward A., John, David A., Cousens, Brian L., Hayden, Leslie A., Vikre, Peter G. (2016) Geochemistry, petrologic evolution, and ore deposits of the Miocene Bodie Hills Volcanic Field, California and Nevada. American Mineralogist, 101 (3) 644-677 doi:10.2138/am-2016-5440 | Journal (article/letter/editorial) | | ore deposits of the Miocene Bodie Hills Volcanic Field, California and Nevada Edward A. du Bray1,*, David...Survey, MS 901, 345 Middlefield Road, Menlo Park, California 94025, U.S.A. 3 Department of Earth Sciences...Survey, MS 910, 345 Middlefield Road, Menlo Park, California 94025, U.S.A. 5 U.S. Geological Survey, Reno...numerous volcanic fields; among these, the Bodie Hills volcanic field (BHVF), astride the California-Nevada...compositionally distinct, and closely spaced reservoirs. Volcanic rocks of the BHVF host quartz-adularia and quartz-alunite |  | | Report (issue) | | _______ Earthquake studies___.__.________________ Volcanic hazards_____.__._..__.________ Engineering geology...of volcanism_______________ Geology related to national security_____________ Relation of radioactive... shear NAS _ _ _________ National Academy of Science NASA .... ... National Aeronautics and Space Administration...Administration NASQAN.....National Stream Quality Accounting Network NAWDEX____ .... ___ National Water Data Exchange...Exchange NCRDS.... ___ _ National Coal Resources Data System NE1S ____ _ National Earthquake Information |  | | Report (volume) | | _______ Earthquake studies___.__.________________ Volcanic hazards_____.__._..__.________ Engineering geology...of volcanism_______________ Geology related to national security_____________ Relation of radioactive... shear NAS _ _ _________ National Academy of Science NASA .... ... National Aeronautics and Space Administration...Administration NASQAN.....National Stream Quality Accounting Network NAWDEX____ .... ___ National Water Data Exchange...Exchange NCRDS.... ___ _ National Coal Resources Data System NE1S ____ _ National Earthquake Information |  | | Journal (article/letter/editorial) | | gray or white massesof quartz, sericite,kaolin (dickite) and pyrite. The originalporphyritictexture of...sericitea fractionof a millimeterwide. Alunite and dickite are found in the wall rock adjacentto the veins...present. Groundmasshas altered to sericite and dickite. Thin section, X Nicols, X 33. .•.• , ß •-,...loanedto him by W. F. Foshagof the United States National Museum (No. C4926). This specimenis labelled "Socavon...remarkablyfree from gangueminerals. Quartz, alunite, dickite, and kaolinite are found in small amountsscatteredthroughthe |  | | Report (volume) | | (nos. 73-76), 23 (nos. 77, 78). Ithaca, N. Y. California Academy of Sciences: Proceedings, 4th ser., vols...29), 22 (no. 1), 23 (nos. 1-6). San Francisco. California, Department of Natural Resources, Division of...111; California Journal of Mines and Geology, vols. 30 (no. 4), 31, 32 (nos. 1-3) ; California Oil Fields...Fields, vols. 19 (nos. 2-4), 20. San Francisco. California, Department of Public Works, Division of Water...Bulletins 45, 46, 46a, 47. Sacramento, Calif. California Institute of Technology, Balch Graduate School |  | | Report (issue) | | STATE OF CALIFORNIA DEPARTMENT OF NATURAL RESOURCES MINERAL COMMODITIES OF CALIFORNIA Bulletin 156...OFFICE LOS ANGELES / PLEASE RETURN STATE OF CALIFORNIA EARL WARREN. Governor DEPARTMENT OF NATURAL...11 AUGUST 156 1950 MINERAL COMMODITIES OF CALIFORNIA GEOLOGIC OCCURRENCE, ECONOMIC DEVELOPMENT. AND... The Honorable Earl Governor of the State of California Ills Dear Warren have the honor to transmit...herewith Bulletin 156, Mineral Commodities of California, prepared by the staff of the Division of Mines |  | | Report (issue) | | Slate __ . Halifax County Other localities North Carolina Hagers Mountain, Person County.- _.______ Corbett...Corbett deposit, Johnston County Burnsville-Swannanoa area, Buncombe, Yancey, and Mitchell Counties ________...________ ____ Rutherford County Other localities North Carolina-South Carolina Kings Mountain district, Cleveland...Cleveland, Gaston, and Lincoln Counties, N.C., and York County, S.C. ._ __-__ ____ --- ---General geology Rock..._Bowlings Mountain, Granville County.- _______ Hillsboro, Orange County..._________________________ Snow |  | | Report (issue) | | Geology and Ore Deposits of the Boulder County Tungsten District Colorado GEOLOGICAL SURVEY PROFESSIONAL... 245 Geology and Ore Deposits of the Boulder County Tungsten District Colorado By T. S. LOVERING and...Geologic map of the Boulder County tungsten district. 2. Claim map of the Boulder County tungsten district, Colorado...geologic and geographic setting of the Boulder County tungsten district and the chief tungsten-producir...Index map show ing the location of the Boulder County tungsten district _______________ _______________________ |  | | Report (volume) | | Paleontology, vol. 15, nos. 54-58, 62. Ithaca, New York. California Academy of Sciences: Pr\o ceedings, 4th ser....vols. 18, 19, nos. 1-11. 1 San Francisco, Calif. California, Department of Natural Resources, Division of...and Mining: Bulletin, nos. 102, 103 ; Mining in California, vols. 25, 26. San Francisco, Calif. 3 4 BIBLIOGRAPHY...NORTH AMERICAN GEOLOGY, 19 2 9 AND 19 3 0 . California, University of, Department of Geology: Bulletin...Augusta, M . Maryland Geological Survey: Baltimore County. Baltimore, Md. Meddelelser om Gronland, Bd. 71-76~ |  | | Report (volume) | | Cuba; Acad. Ciencias URSS. Atlas nacional de Cuba [National atlas of Cuba]: Havana, Cuba, Acad. Ciencias de...Tertiary climatic change in San Joaquin basin, California Evidence from shallow-water mollusks [abs.]:...gastropods and biostratigraphy of the Kern River area, California: U.S. Geol. Survey Prof. Paper 642, 174 p., illus...paleoclimatic trends in the San Joaquin basin, California: U.S. Geol. Survey Prof. Paper 644-D, p. 01-019... George G. The Metaline district, Pend Oreille County, Washington, [Chap.] 6 in Lead-zinc deposits in |  | | Report (issue) | | U, S. A . • • - I • • • • STATE OF CALIFORNIA GOODWIN J. KNIGHT, Governor DEPARTMENT OF NATURAL...176 DECEMBER 1957 MINERAL COMMODITIES . OF CALIFORNIA • GEOLOGIC OCCURRENCE, ECONOMIC DEVELOPMENT...Bureau of Mines United States Geological Survey California Institute of Technology • • ( 3 ) • • ...Xatural enYironment of the mineral resources of California, by Olaf P. Jenkins ______________________________________...________ _ 87 P umice, pumicite, perlite, and volcanic cinders, by Charles '\'Y. Chesterman -------- |  | | Book | | formulas of minerals. A list is presented of all the national magazines in the United States devoted to mineral...localities. Two hundred such clubs exist just in California, many of them providing junior memberships for...federations—Eastern, Midwest, Rocky Mountain, Southwest, California, and Northwest— which in turn are affiliated...Death Valley, or New England) or from your home county; minerals of your favorite color; minerals that...the Lipari Islands to polish your teeth or from California to insulate your home; potash from New Mexico |  | | Report (issue) | | 'separate clay' minerals: kaolinite, nacrite, dickite; and halloysite. The definition of the kaolin minerals...minerals .of the kaolin group be called nacrite and dickite. Kaolinite is the abundant mineral that 'makes... The minerals of the kaolin group, kaolinite, dickite,. nacrite and halloysite, consist of sheet units...'graphic granite" to the quartzites in Berkshire County, Iasachuetts, a few generally accepted theory of...that it must have developed from the - Cheshire County, Massachusetts, about 20 miles south residual weathering |  | Lee, Robert G., Dilles, John H., Tosdal, Richard M., Wooden, Joseph L., Mazdab, Frank K. (2017) Magmatic Evolution of Granodiorite Intrusions at the El Salvador Porphyry Copper Deposit, Chile, Based on Trace Element Composition and U/Pb Age of Zircons. Economic Geology, 112 (2) 245-273 doi:10.2113/econgeo.112.2.245 | Journal (article/letter/editorial) | | Canada V6T 1Z4 3U.S. Geological Survey, Menlo Park, California 94025 Abstract Uranium-lead ages and trace...zircon ages span 3 m.y. from about 44 to 41 Ma, with peak magmatic flux at 44 to 43 Ma. The granodiorite porphyries...breccias Cretaceous andesitic volcanic & sedimentary rocks; local Paleocene volcanic rocks ES-12808 - Qtz 43...into a sequence of Mesozoic to early Cenozoic volcanic and sedimentary rocks. The Sierra Castillo fault...into Paleocene (64–56 Ma) high K calc-alkaline volcanic rocks that include ignimbrites and rhyolitic domes |  | | Report (issue) | | 1966 1967 1968 1969 1970 Numerous Federal, State, county, and local agencies and other organizations and...••.••••••..•.•••... Yellowstone and Grand Teton National Parks ••••.• Geological and geophysical studies...Pacific coast region ........•.....•.......•..•.•. California .•.••.•......•......•.••......... Washington... Nevada .................................. . California . .. .. .. . Alaska Worldwide ~d·i~~;~;~~~~·s~die~...silicate, and of gowerite ....................• Volcanic rocks and processes .................... . Plutonic |
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