 | | Report (issue) | | Hydrothermal Alteration Mineralogy in Newberry 2 Drill Core, Newberry Volcano, Oregon by Keith E. Bargar and Terry...iMenlo Park, CA INTRODUCTION Newberry Volcano, located in central Oregon about 40 km south of Bend, lies...western end of a volcanic terrain that extends across much of the southeastern part of Oregon, and becomes...the west (Macleod and others, 1976). The caldera of Newberry Volcano contains several hot-springs, fumaroles...1981; MacLeod and Sammel, 1982). Accordingly, Newberry 2, a 932 m deep drill hole was drilled by the |  | | Report (issue) | | 370 m) were collected for this investigation. Volcanic glass and open spaces of fractures, vesicles,...drill holes located both outside and within the caldera show the effects of hydrothermal alteration. The...(DonnellyNolan and others, 1990). The most recent volcanic activity (about 900 years ago), at Glass Mountain...Mountain, occurs in the vicinity of the 7 x 12 km caldera (Figure 2) (Donnelly-Nolan and others, 1990). Figure...548°C km" 1 are given for 3 wells sited within the caldera of Medicine Lake volcano (Donnelly-Nolan and others |  | | Report (issue) | | Geological Survey (USGS). The USGS has three national programs in mineralrelated studies. The Development...This information is essential for formulating a national mineral policy and for identifying secure foreign...mineral resources in covered areas of Alaska. The National Mineral Resources Assessment Program (NAMRAP)...communities, and all those who are concerned with national mineral policy and land use decisions. These mineralresource...land. The result is an integrated approach to national mineral-resource problems. VI PROGRAM TUESDAY |  | | Report (volume) | | Survey Bull. 1200; issued, Paris, 1967, by Centre National de Ia Recherche Scientifique as Volume 7 Amerique...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...locality Achiote Conglomerate consists of massive red volcanic conglomerate with well-rounded clasts as large...Named for Adam Peak in Osgood Mountains, Humboldt County. Occupies belt about 21f2 miles long on western |  | | Report (issue) | | 1965. 1966. 1967. 1968. Numerous Federal, State, county, and local agencies and other organizations and...______ North Carolina-__--___--__--__-_-___-._ Oregon._ ______________________________ South Dakota_____________...Montana disturbed belt.________________ Yellowstone National Park and vicinity. __ Snake River Plain______________________...-____ Washington-- _ ____--__-_-_-_______-_--_ Oregon ____-_______----_--_-__-_--__-_Nevada __ _____..._______________________________ Volcanic rocks and processes. _ _______________ Recent volcanic activity. ________________ |  | | Book | | Herbert Kroll (Münster), Rob Lavisnky (Dallas, USA), Heike Lehner (Heidelberg), Joachim Lorenz (Karlstein.... . . . . . . . . . . . . . . . . . . . Mixed Volcanic Activity: Stratovolcanoes . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . . . Volcanic Exhalations . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . . . Volcanic Roots and Magma Chambers. . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . . . Volcanic Gases. . . . . . . . . . . . . . . . . . . . |  | | Book (volume) | | zircon, turquoise, nephrite jade, and jadeite jade) USA Aquamarine Emerald Jadeite jade Nephrite jade Peridot...pegmatite areas include the Pala area of San Diego County in California, the Nuristan area of Afghanistan... Kenya rubies (Mangari area of the Tsavo West National Park) are found in micaceous metamorphic rocks;...climate GEOARCHAEOLOGY 17 Figure 2 Sedgefield, County Durham. Fluxgate gradiometer data. 1 0.5 m. Romano...densities. In 1972, the first survey of Canada’s National Geochemical Reconnaissance program collected lake |  | | Book (volume) | | glacial Lake Missoula in western Washington State (USA). However, most material deposited from suspension...latter, although they are clearly important in hot volcanic dust suspensions (e.g., ignimbrites). The most...Mississippi Delta on the south east coast of the USA, showing a sediment plume issuing from the mouth...Tanganyika), whereas those in areas containing volcanic rocks and old sediments are sand- and mud-rich...transport for Nahal Yatir, Israel and Oak Creek, USA (right) showing the difference between sediment fluxes |
|
