Newberry National Volcanic Monument U.S
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Appendix a Conceptual Geologic Model
Newberry Geothermal Energy Establishment of the Frontier Observatory for Research in Geothermal Energy (FORGE) at Newberry Volcano, Oregon Appendix A Conceptual Geologic Model April 27, 2016 Contents A.1 Summary ........................................................................................................................................... A.1 A.2 Geological and Geophysical Context of the Western Flank of Newberry Volcano ......................... A.2 A.2.1 Data Sources ...................................................................................................................... A.2 A.2.2 Geography .......................................................................................................................... A.3 A.2.3 Regional Setting ................................................................................................................. A.4 A.2.4 Regional Stress Orientation .............................................................................................. A.10 A.2.5 Faulting Expressions ........................................................................................................ A.11 A.2.6 Geomorphology ............................................................................................................... A.12 A.2.7 Regional Hydrology ......................................................................................................... A.20 A.2.8 Natural Seismicity ........................................................................................................... -
Timing of In-Water Work to Protect Fish and Wildlife Resources
OREGON GUIDELINES FOR TIMING OF IN-WATER WORK TO PROTECT FISH AND WILDLIFE RESOURCES June, 2008 Purpose of Guidelines - The Oregon Department of Fish and Wildlife, (ODFW), “The guidelines are to assist under its authority to manage Oregon’s fish and wildlife resources has updated the following guidelines for timing of in-water work. The guidelines are to assist the the public in minimizing public in minimizing potential impacts to important fish, wildlife and habitat potential impacts...”. resources. Developing the Guidelines - The guidelines are based on ODFW district fish “The guidelines are based biologists’ recommendations. Primary considerations were given to important fish species including anadromous and other game fish and threatened, endangered, or on ODFW district fish sensitive species (coded list of species included in the guidelines). Time periods were biologists’ established to avoid the vulnerable life stages of these fish including migration, recommendations”. spawning and rearing. The preferred work period applies to the listed streams, unlisted upstream tributaries, and associated reservoirs and lakes. Using the Guidelines - These guidelines provide the public a way of planning in-water “These guidelines provide work during periods of time that would have the least impact on important fish, wildlife, and habitat resources. ODFW will use the guidelines as a basis for the public a way of planning commenting on planning and regulatory processes. There are some circumstances where in-water work during it may be appropriate to perform in-water work outside of the preferred work period periods of time that would indicated in the guidelines. ODFW, on a project by project basis, may consider variations in climate, location, and category of work that would allow more specific have the least impact on in-water work timing recommendations. -
Source to Surface Model of Monogenetic Volcanism: a Critical Review
Downloaded from http://sp.lyellcollection.org/ by guest on September 28, 2021 Source to surface model of monogenetic volcanism: a critical review I. E. M. SMITH1 &K.NE´ METH2* 1School of Environment, University of Auckland, Auckland, New Zealand 2Volcanic Risk Solutions, Massey University, Palmerston North 4442, New Zealand *Correspondence: [email protected] Abstract: Small-scale volcanic systems are the most widespread type of volcanism on Earth and occur in all of the main tectonic settings. Most commonly, these systems erupt basaltic magmas within a wide compositional range from strongly silica undersaturated to saturated and oversatu- rated; less commonly, the spectrum includes more siliceous compositions. Small-scale volcanic systems are commonly monogenetic in the sense that they are represented at the Earth’s surface by fields of small volcanoes, each the product of a temporally restricted eruption of a composition- ally distinct batch of magma, and this is in contrast to polygenetic systems characterized by rela- tively large edifices built by multiple eruptions over longer periods of time involving magmas with diverse origins. Eruption styles of small-scale volcanoes range from pyroclastic to effusive, and are strongly controlled by the relative influence of the characteristics of the magmatic system and the surface environment. Gold Open Access: This article is published under the terms of the CC-BY 3.0 license. Small-scale basaltic magmatic systems characteris- hazards associated with eruptions, and this is tically occur at the Earth’s surface as fields of small particularly true where volcanic fields are in close monogenetic volcanoes. These volcanoes are the proximity to population centres. -
A Unique Volcanic Field in Tharsis, Mars: Monogenetic Cinder Cones and Lava Flows As Evidence for Hawaiian Eruptions
42nd Lunar and Planetary Science Conference (2011) 1379.pdf A UNIQUE VOLCANIC FIELD IN THARSIS, MARS: MONOGENETIC CINDER CONES AND LAVA FLOWS AS EVIDENCE FOR HAWAIIAN ERUPTIONS. P. Brož1 and E. Hauber2, 1Institute of Geophysics ASCR, v.v.i., Prague, Czech Republic, [email protected], 2Institut für Planetenforschung, DLR, Berlin, Germany, [email protected]. Introduction: Most volcanoes on Mars that have Data: We use images from several cameras, i.e. been studied so far seem to be basaltic shield volca- Context Camera (CTX), High Resolution Stereo Cam- noes, which can be very large with diameters of hun- era (HRSC), and High Resolution Imaging Science dreds of kilometers [e.g., 1] or much smaller with di- Experiment (HiRISE) for morphological analyses. ameters of several kilometers only [2]. Few Viking Topographic information (e.g., heights and slope an- Orbiter-based studies reported the possible existence gles) were determined from single shots of the Mars of cinder cones [3,4] or stratovolcanoes [5-7], and only Orbiter Laser Altimeter (MOLA) in a GIS environ- the advent of higher-resolution data led to the tentative ment, and from stereo images (HRSC, CTX) and de- interpretation of previously unknown edifices as cinder rived gridded digital elevation models (DEM). cones [8] or rootless cones [9]. The identification of Morphometry: For comparison between the cinder cones can constrain the nature of eruption proc- cones and terrestrial morphological analogues (i.e. esses and, indirectly, our understanding of the nature cinder cones [10]) we determined some basic mor- of parent magmas (e.g., volatile content). Here we re- phometric properties and their ratios (e.g., crater di- port on our observation of a unique cluster of possible ameter [WCR] vs. -
The Science Behind Volcanoes
The Science Behind Volcanoes A volcano is an opening, or rupture, in a planet's surface or crust, which allows hot magma, volcanic ash and gases to escape from the magma chamber below the surface. Volcanoes are generally found where tectonic plates are diverging or converging. A mid-oceanic ridge, for example the Mid-Atlantic Ridge, has examples of volcanoes caused by divergent tectonic plates pulling apart; the Pacific Ring of Fire has examples of volcanoes caused by convergent tectonic plates coming together. By contrast, volcanoes are usually not created where two tectonic plates slide past one another. Volcanoes can also form where there is stretching and thinning of the Earth's crust in the interiors of plates, e.g., in the East African Rift, the Wells Gray-Clearwater volcanic field and the Rio Grande Rift in North America. This type of volcanism falls under the umbrella of "Plate hypothesis" volcanism. Volcanism away from plate boundaries has also been explained as mantle plumes. These so- called "hotspots", for example Hawaii, are postulated to arise from upwelling diapirs with magma from the core–mantle boundary, 3,000 km deep in the Earth. Erupting volcanoes can pose many hazards, not only in the immediate vicinity of the eruption. Volcanic ash can be a threat to aircraft, in particular those with jet engines where ash particles can be melted by the high operating temperature. Large eruptions can affect temperature as ash and droplets of sulfuric acid obscure the sun and cool the Earth's lower atmosphere or troposphere; however, they also absorb heat radiated up from the Earth, thereby warming the stratosphere. -
Bailey-1976.Pdf
VOL. 81, NO. 5 JOURNAL OF GEOPHYSICAL RESEARCH FEBRUARY 10, 1976 Volcanism, Structure,and Geochronologyof Long Valley Caldera, Mono County, California RoY A. BAILEY U.S. GeologicalSurvey, Reston, Virginia 22092 G. BRENT DALRYMPLE AND MARVIN A. LANPHERE U.S. GeologicalSurvey, Menlo Park, California 94025 Long Valley caldera, a 17- by 32-km elliptical depressionon the east front of the Sierra Nevada, formed 0.7 m.y. ago during eruption of the Bishoptuff. Subsequentintracaldera volcanism included eruption of (1) aphyric rhyolite 0.68-0.64 m.y. ago during resurgentdoming of the caldera floor, (2) porphyritic hornblende-biotiterhyolite from centersperipheral to the resurgentdome at 0.5, 0.3, and 0.1 m.y. ago, and (3) porphyritic hornblende-biotiterhyodacite from outer ring fractures0.2 m.y. ago to 50,000 yr ago, a sequencethat apparently records progressivecrystallization of a subjacentchemically zoned magma chamber. Holocene rhyolitic and phreatic eruptions suggestthat residual magma was present in the chamber as recentlyas 450 yr ago. Intracaldera hydrothermalactivity beganat least0.3 m.y. ago and was widespreadin the caldera moat; it has sincedeclined due to self-sealingof near-surfacecaldera sediments by zeolitization, argillization, and silicificationand has becomelocalized on recentlyreactivated north- west-trendingSierra Nevada frontal faults that tap hot water at depth. INTRODUCTION concentrates were treated with a dilute HF solution to remove small bits of attached glassand fragments of other mineral In the westernUnited States,only three calderasare known grains. Obsidian used for dating was totally unhydrated and to be large enoughand young enoughto possiblystill contain not devitrified. Small blocks sawed from many of the hand residual magma in their chambers:the Vailes caldera (•1.1 specimenswere used for dating. -
Volcanic Vistas Discover National Forests in Central Oregon Summer 2009 Celebrating the Re-Opening of Lava Lands Visitor Center Inside
Volcanic Vistas Discover National Forests in Central Oregon Summer 2009 Celebrating the re-opening of Lava Lands Visitor Center Inside.... Be Safe! 2 LAWRENCE A. CHITWOOD Go To Special Places 3 EXHIBIT HALL Lava Lands Visitor Center 4-5 DEDICATED MAY 30, 2009 Experience Today 6 For a Better Tomorrow 7 The Exhibit Hall at Lava Lands Visitor Center is dedicated in memory of Explore Newberry Volcano 8-9 Larry Chitwood with deep gratitude for his significant contributions enlightening many students of the landscape now and in the future. Forest Restoration 10 Discover the Natural World 11-13 Lawrence A. Chitwood Discovery in the Kids Corner 14 (August 4, 1942 - January 4, 2008) Take the Road Less Traveled 15 Larry was a geologist for the Deschutes National Forest from 1972 until his Get High on Nature 16 retirement in June 2007. Larry was deeply involved in the creation of Newberry National Volcanic Monument and with the exhibits dedicated in 2009 at Lava Lands What's Your Interest? Visitor Center. He was well known throughout the The Deschutes and Ochoco National Forests are a recre- geologic and scientific communities for his enthusiastic support for those wishing ation haven. There are 2.5 million acres of forest including to learn more about Central Oregon. seven wilderness areas comprising 200,000 acres, six rivers, Larry was a gifted storyteller and an ever- 157 lakes and reservoirs, approximately 1,600 miles of trails, flowing source of knowledge. Lava Lands Visitor Center and the unique landscape of Newberry National Volcanic Monument. Explore snow- capped mountains or splash through whitewater rapids; there is something for everyone. -
2013 80% Post-Consumer Recycled Paper
Volcanic Vistas Guide to Newberry National Volcanic Monument Becky McCall Lava Butte, depicted above, is the cinder cone volcano located to the North of Lava Lands Visitor Center. It was created during a two-phase eruption just over 7,000 years ago. The first phase sent gas-charged molten rock into the air. The material solidified in the air, trapping gas bubbles, and fell back to the earth as cinders in a pile. The grey outline above indicates the size of Lava Butte today. Lava spilled out of a side vent during the second phase and flowed for several miles to the Deschutes River. The lava cooled into a field of basaltic rock. These volcanic features, and many others, are preserved as part of Newberry National Volcanic Monument. To learn more about the Monument check out the quick facts at the bottom of each page. What Can I See In... Useful Contacts 2 Hours: Newberry National Volcanic Monument Lava Lands Visitor Center and Lava Butte Due to limited parking atop Lava Butte, 30 minute parking passes are issued on Current Information Hotline a first come, first served basis. Vehicles longer than 22 ft. prohibited. See page 6 for more information. 541-383-5700 Half-Day: Above sites plus explore Lava River Cave EMERGENCY 911 Allow 2 hours, round trip, to see entire cave. Site gate closes at 4pm. See page 7 for more information. Newberry National Volcanic Monument www.fs.usda.gov/attmain/centraloregon/specialplaces Full Day: Lava Lands Visitor Center 541-593-2421 Above sites plus Lava Cast Forest Access site via gravel road, 9 miles one way. -
Diamond Craters Oregon's Geologic
Text by Ellen M. Benedict, 1985 Features at stops correspond to points on a clock ago, a huge mass of hot gases, volcanic ashes, bits face. Imagine that you are standing in the middle of a of pumice and other pyroclastics (fire-broken rock) Travel And Hiking Hints clock face. Twelve o’clock is the road in front of you violently erupted. The blast – greater than the May and 6 o’clock the road behind. If you always align the 18, 1980, eruption of Mt. St. Helens – deposited a Diamond Craters is located in the high desert country clock face with the road, you should be able to locate layer of pyroclastics 30 to 130 feet thick over an area about 55 miles southeast of Burns, Oregon. It’s an the features. almost 7,000 square miles! isolated place and some precautions should be taken . when traveling in the area. Start Tour. Mileage begins halfway Pyroclastics are between milepost 40 and 41 on State normal behavior Diamond Craters has no tourist facilities. The nearest Highway 205 at the junction to Diamond. for magmas place where gasoline is sold is at Frenchglen. Turn left. (subsurface That’s the opinion held by scores of molten rocks) Keep your scientists and educators who have visited Diamond, Oregon, a small ranching community, was of rhyolitic (a vehicle on named in 1874 for Mace McCoy’s Diamond brand. volcanic material and studied the area. It has the “best and hard-packed The nearby craters soon became known as Diamond related to granite) most diverse basaltic volcanic features in the road surfaces Craters. -
Canadian Volcanoes, Based on Recent Seismic Activity; There Are Over 200 Geological Young Volcanic Centres
Volcanoes of Canada 1 V4 C.J. Hickson and M. Ulmi, Jan. 3, 2006 • Global Volcanism and Plate tectonics Where do volcanoes occur? Driving forces • Volcano chemistry and eruption types • Volcanic Hazards Pyroclastic flows and surges Lava flows Ash fall (tephra) Lahars/Debris Flows Debris Avalanches Volcanic Gases • Anatomy of an Eruption – Mt. St. Helens • Volcanoes of Canada Stikine volcanic belt Presentation Outline Anahim volcanic belt Wells Gray – Clearwater volcanic field 2 Garibaldi volcanic belt • USA volcanoes – Cascade Magmatic Arc V4 Volcanoes in Our Backyard Global Volcanism and Plate tectonics In Canada, British Columbia and Yukon are the host to a vast wealth of volcanic 3 landforms. V4 How many active volcanoes are there on Earth? • Erupting now about 20 • Each year 50-70 • Each decade about 160 • Historical eruptions about 550 Global Volcanism and Plate tectonics • Holocene eruptions (last 10,000 years) about 1500 Although none of Canada’s volcanoes are erupting now, they have been active as recently as a couple of 4 hundred years ago. V4 The Earth’s Beginning Global Volcanism and Plate tectonics 5 V4 The Earth’s Beginning These global forces have created, mountain Global Volcanism and Plate tectonics ranges, continents and oceans. 6 V4 continental crust ic ocean crust mantle Where do volcanoes occur? Global Volcanism and Plate tectonics 7 V4 Driving Forces: Moving Plates Global Volcanism and Plate tectonics 8 V4 Driving Forces: Subduction Global Volcanism and Plate tectonics 9 V4 Driving Forces: Hot Spots Global Volcanism and Plate tectonics 10 V4 Driving Forces: Rifting Global Volcanism and Plate tectonics Ocean plates moving apart create new crust. -
Field Guides
Downloaded from fieldguides.gsapubs.org on June 1, 2012 Field Guides The post-Mazama northwest rift zone eruption at Newberry Volcano, Oregon Daniele Mckay, Julie M. Donnelly-Nolan, Robert A. Jensen and Duane E. Champion Field Guides 2009;15;91-110 doi: 10.1130/2009.fld015(05) Email alerting services click www.gsapubs.org/cgi/alerts to receive free e-mail alerts when new articles cite this article Subscribe click www.gsapubs.org/subscriptions/ to subscribe to Field Guides Permission request click http://www.geosociety.org/pubs/copyrt.htm#gsa to contact GSA Copyright not claimed on content prepared wholly by U.S. government employees within scope of their employment. Individual scientists are hereby granted permission, without fees or further requests to GSA, to use a single figure, a single table, and/or a brief paragraph of text in subsequent works and to make unlimited copies of items in GSA's journals for noncommercial use in classrooms to further education and science. This file may not be posted to any Web site, but authors may post the abstracts only of their articles on their own or their organization's Web site providing the posting includes a reference to the article's full citation. GSA provides this and other forums for the presentation of diverse opinions and positions by scientists worldwide, regardless of their race, citizenship, gender, religion, or political viewpoint. Opinions presented in this publication do not reflect official positions of the Society. Notes © 2009 Geological Society of America Downloaded from fieldguides.gsapubs.org on June 1, 2012 The Geological Society of America Field Guide 15 2009 The post-Mazama northwest rift zone eruption at Newberry Volcano, Oregon Daniele Mckay* Department of Geological Sciences, 1272 University of Oregon, Eugene, Oregon 97403-1272, USA Julie M. -
Greater Bend Community Wildfire Protection Plan
Greater Bend Community Wildfire Protection Plan Two Bulls Fire, June 2014 February 2016 Prepared by Project Wildfire 541-322-7129 www.projectwildfire.org [email protected] ª Executive Summary Community Wildfire Protection Plans (CWPPs) are documents that are designed by a local group of stakeholders who are invested in the wildland fire threat to their area. The group of stakeholders typically consists of a representative from the fire department(s), the state, any governing bodies and especially property owners. Each of these representatives should bring their concerns regarding wildland fire to the discussion and propose solutions to their concerns. Although reducing the risk of high intensity wildland fire is the primary motivation behind this plan, managing the larger landscape to restore forest health and more resilient conditions and improving fire response by all fire agencies are also discussed and addressed in the action plan. Continued efforts have been made by county, state and federal land management agencies to reduce the threat of high intensity wildland fires through education and fuels reduction activities on public lands. In addition, private property owners have responded enthusiastically to the defensible space and preparation guidelines and recommendations to reduce hazardous fuels on their own properties by participating in programs such as Firewise and FireFree. All of these activities allow the Greater Bend Area to become a more Fire Adapted Community. Wildland fire is a natural and necessary component of ecosystems across the country. Central Oregon is no exception. Historically, wildland fires have shaped the forests and wildlands valued by residents and visitors. These landscapes however, are now significantly altered due to fire prevention efforts, modern suppression activities and a general lack of large scale fires, resulting in overgrown forests with dense fuels that burn more intensely than in the past.