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Overview of the Geology of Mount Shasta
Overview of the Geology of Mount Shasta Geology 60 Fall 2007 William Hirt College of the Siskiyous 800 College Avenue Weed, California Introduction Mount Shasta is one of the twenty or so large volcanic peaks that dominate the High Cascade Range of the Pacific Northwest. These isolated peaks and the hundreds of smaller vents that are scattered between them lie about 200 kilometers east of the coast and trend southward from Mount Garibaldi in British Columbia to Lassen Peak in northern California (Figure 1). Mount Shasta stands near the southern end of the Cascades, about 65 kilometers south of the Oregon border. It is a prominent landmark not only because its summit stands at an elevation of 4,317 meters (14,162 feet), but also because its volume of nearly 500 cubic kilometers makes it the largest of the Cascade STRATOVOLCANOES (Christiansen and Miller, 1989). Figure 1: Locations of the major High Cascade volcanoes and their lavas shown in relation to plate boundaries in the Pacific Northwest. Full arrows indicate spreading directions on divergent boundaries, and half arrows indicate directions of relative motion on shear boundaries. The outcrop pattern of High Cascade volcanic rocks is taken from McBirney and White (1982), and plate boundary locations are from Guffanti and Weaver (1988). Mount Shasta's prominence and obvious volcanic character reflect the recency of its activity. Although the present stratocone has been active intermittently during the past quarter of a million years, two of its four major eruptive episodes have occurred since large glaciers retreated from its slopes at the end of the PLEISTOCENE EPOCH, only 10,000 to 12,000 years ago (Christiansen, 1985). -
SISKIYOU COUNTY PLANNING COMMISSION STAFF REPORT May 15, 2019
SISKIYOU COUNTY PLANNING COMMISSION STAFF REPORT May 15, 2019 AGENDA ITEM No. 1: SHASTINA WEST SUBDIVISION (TSM-10-01) Extension Request APPLICANT: Evan Chertkov 15550 Valley View Drive Weed, California, 96094 PROPERTY OWNER: Evan Chertkov 15550 Valley View Drive Weed, California, 96094 PROJECT SUMMARY: The applicant is requesting an extension of the Shastina West Subdivision (TSM1001). The map currently has an expiration date of May 18, 2019. GENERAL PLAN: Erosion Hazard Area, Wildfire Hazard Area, Excessive Slope Area, Deer Wintering Area (Zero-Acre Density). ZONING: Single Family Residential (RES-1), Non-Prime Agricultural (AG2). LOCATION: The project site is located on Dwinnell Way, approximately .25 mile north of the intersection of Dwinnell Way and Jackson Ranch Road, adjacent to the Lake Shastina Subdivision; T42N, R05W, Sections 10 and 11; MDB&M; APNs: 020-071-320, 330, 450 and 460. EXHIBITS: A. Resolution PC-2019-018 B. Approved TSM1001 C. Planning Commission Staff Report May 18, 2011 D. Planning Department memo dated February 2, 2017 PROJECT DESCRIPTION The Shastina West Subdivision is a proposed single family residential and agricultural development of 26 lots situated on 124.8 acres. The development would occur in two phases. Phase 1 includes 16 single-family residential lots with an average lot size of 0.75 acres. Phase 2 includes 4 single-family residential lots and 6 agricultural lots with sizes ranging from 2.4 acres to 26.07 acres. Water and sewer services for Lots in Phase 1 would be provided by the Lake Shastina Community Services District. Water and sewage disposal for Lots in Phase 2 would be provided by individual on-site domestic wells and septic systems. -
The Chico Historian
1 The Chico Historian Volume 18 2008 Editors Bryce Havens & David Wysocki Editorial Board Brett Belanger Meghan Bigley Dillon Carroll Samantha Johnston James Morey Jesse Pluim Garret Root Faculty Advisors Chico Historian Dr. Stephen Lewis Phi Alpha Theta Dr. Stephen Lewis Published by the Alpha Delta Omicron Chapter PHI ALPHA THETA Department of History California State University, Chico 2 Dedicated in Loving Memory of Professor Weikun Cheng, 19532007 3 Obituary Weikun Cheng was born on August 25, 1953, and grew up in Beijing. After he finished his freshman year of high school, turmoil in China forced him to delay his formal education for nearly a decade. The policies of the Cultural Revolution closed down all schools, including his. Two years later, when Weikun would have graduated from high school, he was sent to southern China to work on a state-run sugar plantation. He later spent two years in the army, where his commanders were quick to recognize his culinary skills. He soon became the lead chef of his company. As Weikun often told his students, the only way that he and his friends could read books during this time was to break into public libraries, all of which had been closed as part of the Cultural Revolution. In 1977, China’s government reopened the universities. One year later, and with only one year of formal high school training, Weikun took the university entrance exam and passed. He studied History at Sichuan University and received his Bachelor’s degree in 1982. He returned to Beijing and completed a Master’s degree at the People’s University of China in 1984. -
Bidwell Mansionstate Historic Park
Our Mission Bidwell The mission of California State Parks is to provide for the health, inspiration and education of the people of California by The stately Bidwell Mansion helping to preserve the state’s extraordinary biological diversity, protecting its most Mansion embodies a State Historic Park valued natural and cultural resources, and creating opportunities for high-quality great love story—of a man outdoor recreation. for his land and for his wife, and of the couple’s mutual love for their new California State Parks supports equal access. state—California. Prior to arrival, visitors with disabilities who need assistance should contact the park at (530) 895-6144. This publication is available in alternate formats by contacting: CALIFORNIA STATE PARKS P. O. Box 942896 Sacramento, CA 94296-0001 For information call: (800) 777-0369 (916) 653-6995, outside the U.S. 711, TTY relay service www.parks.ca.gov Discover the many states of California.TM Bidwell Mansion State Historic Park 525 Esplanade Chico, CA 95926 (530) 895-6144 Courtesy of California History Room, California State Library © 2009 California State Parks Printed on Recycled Paper Sacramento, California W alk into Chico’s Bidwell native people changed Rancho del Arroyo Chico Mansion State Historic Park forever. An enduring By the 1850s, Bidwell had purchased more to relive a part of California’s relationship was than 30,000 acres. He then built a general rich early history. The established when John store, a hotel, post office and flour mill. mansion was headquarters Bidwell was befriended About his land, Bidwell wrote: “The for John Bidwell. -
STEEL POINTS No
882 .C8 S81 JUN to tol *--AN"N4CCO - PORTLAND UWMAGELES P,Press PHIL. METSCHAN, PRES C. H. SHOLES, SEC'Y Clippings F. DRESSER, V. PRES CHAS. E. RUM ELI N. TRt A' WILL G. STEEL, MANAGER ARE MONEY MAKERS '~~R~~ For Contractors, Supply Houses, VF-;', ~~Business Men and Corporations If you know how to use them. If you don't know how, ring up PACIFIC 2034 and we will call and see you. Public Men and Politicians Let Us Read the Papers for You Allen Press Clipping Bureau 109 SECOND ST., PORTLAND, OREGON. 424. Lumber Exchange Telephone Main 3051 MOUNTAIN VIEW HOUSE Portland, Oregon 0. C. YOCUM. Guide City and Suburban Real Estatel MRS. A. M. YOCUM, Manager All Sorts of Real Property in Klamath Count,. 1 Board and Lodging, per day $1.50 Board and Lodging, per week - 8.oo Correspondence Solicited Board and Lodging, per month - 25.00 i, i Old' Government Camp, Mt. Hood i LIBRARY i -j-, EALMON P. 0. CLACKAMAS CO., OREGON WESTERN OREGON STATE COLI.!6E I M~ONMOUTH, OREGON 97361 . _. - - I - -1- -_ _-', - 1 - 1-1_,_-0__--i"- -_- I I W carried to them by the waters fromn the mountains, and have Slamath County. for ages been producing immense crops of tules, gigantic Klamath County, Oregon, is on the California state line bull-rushes, which grow six to twelve feet high, and so and just east of the Cascade range of mountains. It has a thick that it is almost impossible to get through them. population of about 7,000. -
3 Department of Development Services Tim Snellings, Director Pete Calarco, Assistant Director
3 Department of Development Services Tim Snellings, Director Pete Calarco, Assistant Director 7 County Center Drive T: 530.552.3700 buttecounty.net/dds Oroville, California 95965 F: 530.538.7785 BUTTE COUNTY PLANNING COMMISSION NOTICE OF INTENT TO ADOPT A MITIGATED NEGATIVE DECLARATION AND NOTICE OF PUBLIC HEARING TENTATIVE PARCEL MAP TPM18-0002 NOTICE IS HEREBY GIVEN that the Butte County Planning Commission will hold a public hearing to consider Tentative Parcel Map TPM18-0002 for Dudley and Judith Clark on May 9, 2019, at 9:00 a.m. or shortly thereafter, in the Butte County Board of Supervisors’ Room, County Administration Center, 25 County Center Drive, Oroville, California as follows: Project Information: Project: Tentative Parcel Map TPM18-0002 (Dudley and Judith Clark) Location: The project site is located at 5000 Will T Road, 3,000 feet west from Meridian Road, and 4 miles north of the City of Chico. APN: 047-100-202 Proposal: The applicant is proposing a Tentative Parcel Map to subdivide a 40.15-acre property, located in the AG-20 (Agriculture, 20-acre min. parcel size) zone, into two parcels of 20.08 acres (Parcel 1) and 20.07 acres (Parcel 2). The applicant is requesting approval of an Unusual Circumstances Review (UCR) to reduce the 300 ft. Agricultural Buffer setback for future residential development on both proposed parcels, in accordance with Butte County Code (BCC) sec. 24-84 (Exceptions to Agricultural Buffer Setback). The applicant is also requesting an Exception from County road improvements to expand the width of Meridian Meadows Lane to 10 feet wide where a width of 20 feet is required with 2-foot wide road shoulders and an aggregate base. -
Pre-Eruptive and Syn-Eruptive Conditions in the Black Butte, California Dacite: Insight Into Crystallization Kinetics in a Silicic Magma System
Journal of Volcanology and Geothermal Research 160 (2007) 263–284 www.elsevier.com/locate/jvolgeores Pre-eruptive and syn-eruptive conditions in the Black Butte, California dacite: Insight into crystallization kinetics in a silicic magma system Molly C. McCanta a,⁎, Malcolm J. Rutherford a, Julia E. Hammer b a Department of Geological Sciences, Brown University, Box 1846, Providence, RI 02912, USA b Department of Geology and Geophysics, University of Hawaii, 1680 East–West Road, Honolulu, HI 96822, USA Received 7 April 2006; received in revised form 26 August 2006; accepted 3 October 2006 Available online 28 November 2006 Abstract A series of experiments and petrographic analyses have been run to determine the pre-eruption phase equilibria and ascent dynamics of dacitic lavas composing Black Butte, a dome complex on the flank of Mount Shasta, California. Major and trace element analyses indicate that the Black Butte magma shared a common parent with contemporaneously erupted magmas at the Shasta summit. The Black Butte lava phenocryst phase assemblage (20 v.%) consists of amphibole, plagioclase (core An77.5), and Fe–Ti oxides in a fine-grained (b0.5 mm) groundmass of plagioclase, pyroxene, Fe–Ti oxides, amphibole, and cristobalite. The phenocryst assemblage and crystal compositions are reproduced experimentally between 890 °C and 910 °C, ≥300 MPa, X- H2O =1, and oxygen fugacity=NNO+1. This study has quantified the extent of three crystallization processes occurring in the Black Butte dacite that can be used to discern ascent processes. Magma ascent rate was quantified using the widths of amphibole breakdown rims in natural samples, using an experimental calibration of rim development in a similar magma at relevant conditions. -
Sitting Bull Tatanka-Iyotanka (1831-1890)
Brigham Young 1801-1877 After 17 months and many miles of travel, Brigham Young leads 148 Mormon pioneers into Utah’s Valley of the Great Salt Lake. Gazing over the parched earth of the remote location, Young declared, “This is the place,” and the pioneers began preparations for the thousands of Mormon migrants who would follow. Seeking religious and political freedom, the Mormons began planning their great migration from the east after the murder of Joseph Smith, the Christian sect’s founder and first leader. Joseph Smith was born in Sharon, Vermont, in 1805. In 1827, he declared that he had been visited by a Christian angel named Moroni, who showed him an ancient Hebrew text that had been lost for 1,500 years. The holy text, supposedly engraved on gold plates by a Native American prophet named Mormon in the fifth century A.D., told the story of Israelite peoples who had lived in America in ancient times. During the next few years, Smith dictated an English translation of this text to his wife and other scribes, and in 1830 The Book of Mormon was published. In the same year, Smith founded the Church of Christ–later known as the Church of Jesus Christ of Latter-day Saints–in Fayette, New York. The religion rapidly gained converts, and Smith set up Mormon communities in Ohio, Missouri, and Illinois. However, the Christian sect was also heavily criticized for its unorthodox practices, which included polygamy. In 1844, the threat of mob violence prompted Smith to call out a militia in the Mormon town of Nauvoo, Illinois. -
John Muir Newsletter, Spring 1996 John Muir Center for Regional Studies
University of the Pacific Scholarly Commons John Muir Newsletters John Muir Papers Spring 4-1-1996 John Muir Newsletter, Spring 1996 John Muir Center for Regional Studies Follow this and additional works at: https://scholarlycommons.pacific.edu/jmn Part of the American Studies Commons, Natural Resources and Conservation Commons, and the United States History Commons Recommended Citation John Muir Center for Regional Studies, "John Muir Newsletter, Spring 1996" (1996). John Muir Newsletters. 45. https://scholarlycommons.pacific.edu/jmn/45 This Newsletter is brought to you for free and open access by the John Muir Papers at Scholarly Commons. It has been accepted for inclusion in John Muir Newsletters by an authorized administrator of Scholarly Commons. For more information, please contact [email protected]. John Muir Newsletter spring 1996 university of the pacific volume 6, number 2 JOHN MUIR AND THEBIDWELLS: THE FORGOTTEN FRIENDSHIP By Michael J. Gillis (Editor's note: this article was originally published in the Spring, 1995 issue ofthe Dogtown Territorial Quar terly, and reprinted here with the kind permission of its publisher, Bil/Anderson ofParadise, California .. The author, Michael Gillis, is Lecturer in History at California State University, Chico. He and a colleague, Michael Magliaria, are working on a book-length study ofJohn Bidwell, Chico's founder and most prominent citizen) The thirty-seven year friendship between John Muir life but provides a better sense of who these people were and the Bidwells which began on the slopes ofMt. Shasta in and how they added substance and color to the history of 1877 is a surprise to many people, even to experts in Chico and California. -
4.11 Cultural and Paleontological Resources
4.11 CULTURAL AND PALEONTOLOGICAL RESOURCES This section of the Draft EIR considers and evaluates the potential impacts of the proposed City of Chico General Plan Update on historical, cultural, and paleontological resources. Cultural resources are defined as prehistoric and historic sites, structures, and districts or any other physical evidence associated with human activity considered important to a culture, a subculture, or a community for scientific, traditional, or religious reasons. Paleontological resources include fossil remains, as well as fossil localities and formations which have produced fossil material. For analysis purposes, cultural resources may be categorized into four groups: archaeological resources (prehistoric and historical); historic properties, buildings, and districts; areas of importance to Native Americans; and paleontological resources (fossilized remains of plants and animals). Cultural resource impacts include those to existing historic resources (i.e., historic districts, landmarks, etc.) and to archaeological and paleontological resources. CONCEPTS AND TERMINOLOGY FOR EVALUATION OF CULTURAL RESOURCES The following definitions are common terms used to discuss the regulatory requirements and treatment of cultural resources: Cultural resources is the term used to describe several different types of properties: prehistoric and historical archaeological sites; architectural properties such as buildings, bridges, and infrastructure; and resources of importance to Native Americans. Historic properties is a term -
Gigantic Debris Avalanche of Pleistocene Age from Ancestral Mount Shasta Volcano, California, and Debris-Avalanche Hazard Zonation
Note: this copy of this document is missing pages 5 & 6. We are looking for another original so we may incorporate them at a later date. Gigantic Debris Avalanche of Pleistocene Age From Ancestral Mount Shasta Volcano, California, and Debris-Avalanche Hazard Zonation By DWIGHT R. CRANDELL U.S. GEOLOGICAL SURVEY BULLETIN 1861 CONTENTS Abstract 1 Introduction 1. Topographic and geologic setting and age of the debris avalanche 3 Previous interpretations of the geology and topography of Shasta Valley 3 Description of the debris-avalanche deposits 4 Matrix facies 6 Block facies 8 Fossils in the matrix facies 11 Distribution of the debris-avalanche deposits 11 Extent, thickness, and volume of the deposits 14 Origin of morphology and drainage on the deposits 16 Sources of water in the debris avalanche 19 Cause of the debris avalanche 19 Initiation of the debris avalanche and emplacement of deposits 21 Comparison of wet and dry volcanic debris avalanches 22 Hazard zonation for volcanic debris avalanches 23 Examples of debris-avalanche hazard zonation 24 Discussion 25 Acknowledgments 25 References cited 25 Volcanic ash analysis 32 FIGURES 1. Map showing inferred minimum extent of debris-avalanche deposits in Shasta Valley 2 2. Topographic map showing morphology of debris-avalanche deposits 5 3-5. Photographs showing: 3. Hills and flat areas formed by the debris avalanche 6 4. Morphology of the debris-avalanche deposits 7 5. Matrix facies of debris-avalanche deposits 7 6. Map showing localities at which pebbles in the matrix facies were identified and the inferred extent of the block facies 9 7-12. -
Ice Volumes on Cascade Volcanoes: Mount Rainier, Mount Hood, Three Sisters, and Mount Shasta U.S
Ice Volumes on Cascade Volcanoes: Mount Rainier, Mount Hood, Three Sisters, and Mount Shasta U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1365 Cover. Mount Rainier (as seen from the west) is in some ways representative of all the volcanoes in this study. Each volcano provides a high mountain environment on which the glaciers exist, and which is in turn eroded by forces associated with glaciation. (U.S. Geological Survey photograph.) ICE VOLUMES ON CASCADE VOLCANOES Aerial photograph of Collier Cone, Oreg. (bottom-center of photograph), a cinder cone similar in eruption characteristics to the Mexican volcano Paricutin. Active between 500 and 2,500 years B.P. (Taylor, 1981, p. 61), the cone erupted between the lateral moraines of Collier Glacier. During the early 1930's, the terminus of Collier Glacier abutted the south flank of Collier Cone, reworking the cinders into the striated pattern visible today (Ruth Keen, Mazamas Mountaineering Club, oral commun., 1984). Williams (1944) reported the presence of glacial moraine interspersed with lava flows around the base of Collier Cone. (U.S. Geological Survey photograph by Austin Post on September 9, 1979.) Ice Volumes on Cascade Volcanoes: Mount Rainier, Mount Hood, Three Sisters, and Mount Shasta By CAROLYN L. DRIEDGER and PAUL M. KENNARD U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1365 UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1986 DEPARTMENT OF THE INTERIOR DONALD PAUL HODEL, Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress Cataloging-in-Publication Data Driedger, C. L. (Carolyn L.) Ice volumes on Cascade volcanoes. Supt. of Docs, no.: I 19.16:1365 1.