Lassen Domefield Telephoto View from Parhams Point on Hat Creek Rim (Old Station Quadrangle)

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Lassen Domefield Telephoto View from Parhams Point on Hat Creek Rim (Old Station Quadrangle)

May 19–20, 1915 flow upper Devastated Area Crescent Lassen dacite of Crater Peak Hill 8283 tuff cone of Raker Peak rhyodacite of Chaos Crags Krummholz Chaos Crags Mount Diller Chaos Crags dome E dome B dome F Domes of Sunflower Flat andesite of Raker Peak Hat Creek Hat Creek andesites of Badger Mountain Lassen domefield Telephoto view from Parhams Point on Hat Creek Rim (Old Station quadrangle). Remnants of the northeast lobe of the dacite flow of May 19–20, 1915 (unit d9) are exposed in the notch at the top of Lassen Peak, above the Devastated Area. The original blocky carapace of Lassen Peak (unit dl, 27±1 ka) has been removed by glaciation, whereas a blocky carapace is preserved on the unglaciated domes of Chaos Crags (units rcb, rce and rcf, 1,103±13 yr B.P.). Forested slopes in front of the domes of Chaos Crags are the rhyodacite domes of Sunflower Flat (unit rsf, 41±1 ka). Mount Diller is a remnant of the Brokeoff Volcano (590–390 ka). The slopes in front of Mount Diller, between Chaos Crags and Lassen Peak, are underlain primarily by the rhyodacite dome and flow of Krummholz (unit rkr, 43±2 ka, part of the Eagle Peak sequence) and the dacite of hill 8283 (unit d82, 261±5 ka, part of the Bumpass sequence) and are mantled by tephra of the Chaos Crags eruptions (unit pc, 1,103±13 yr B.P.). Crescent Crater (unit dc, 236±1 ka) is also part of the Bumpass sequence. Raker Peak is the vent for the andesite of Raker Peak (unit arp, 270±18 ka), part of the older Twin Lakes sequence. Forested slopes in the foreground are the regional calc-alkaline andesites of Badger Mountain (unit abm, 708±21 ka). Photograph by Patrick Muffler..

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NOMINATION FORM for NPS USE ONLY for FEDERAL PROPERTIES ENTRY DATE (Type All Entries - Complete Applicable Sections) Rti^T Fl 1SP6
STATE: .Form Igd?6 UNITED STATES DEPARTMENT OF THE INTERIOR (Uct. IV/^J NATIONAL PARK SERVICE California COUNTY: NATIONAL REGISTER OF HISTORIC PLACES Shasta and Lassen INVENTORY - NOMINATION FORM FOR NPS USE ONLY FOR FEDERAL PROPERTIES ENTRY DATE (Type all entries - complete applicable sections) rti^T fl 1SP6 COMMON: Nobles' Emigrant Trail HS-1 AND/OR HISTORIC: Nobles' Trail (Fort Kearney, South Pass and Honey Lake Wagon Road) STREET AND NUMBER: M --"'' ^ * -X'"' '' J-- - ;/* ( ,: - "; ^ ;." ; r ^-v, % /'• - O1- - >,- ,•<•-,- , =••'"' CITY OR TOWN: / '-' j- ,. " ,-, ,, , CONG RESSIONAL DISTRICT: Lassen Volcanic National Park S econd STATE: CODE COUN TY: CODE California 06 Shaj3ta and Lassen 089/035 :. : ; STATUS ACCESSIBLE (Check?ATE,G SOne)R \ OWNERSHIP SIAIU3 T0 THE p UBL|c gf] District Q Building [ig Public Public Acquisition: [ | Occupied Yes: : : -Z Q Site | | Structure | | Private Q In Process PT"1 Unoccupied | | Restricted 0 [~~| Object Qj Both f~| Being Consider)sd Q Preservation work [X] Unrestricted in progress [~~] No u PRESENT USE (Check One or More as Appropriate) | | Agricultural jj£] Government [X] Park | | Transportation | | Comments h- I | Commercial Q2 Industrial [~~| Private Residence | | Other (SpeciM »/> Q Educational Q Military [~1 Religious ;; /. z [Êntertainment Q Museum f"| Scientific UJ STATE: »/> National Park Service REGIONAL HEADQUARTERS: (If applicable) SIr REET AND NUMBER: Western Region l^50 Golden Gate Avenue Cl TY OR TOWN: SIPATE: CODE San Francisco California Ub V BliBsiîiiiBHIiiMMIiBlilBlîsMiM^Ml Illlllillliil^^ COURTHOUSE, REGISTRY OF DEEDS, ETC: COUNTY: STREET AND NUMBER: CITY OR TOWN: SIPATE: CODE Lassen Volcanic National Park California Ob toM^ TITLE OF SURVEY: The National Survey of Historic '&&& s^n^lt^Jâglix "Overland Migrations West of the Mississippi" TI AsX -X^ ENT^Y*"NUMBER o DATE OF SURVEY: 1959 [X] Federal Q State / ^yl County | _ | LocoilP' ^k X3 Z DEPOSITORY FOR SURVEY RECORDS: t) •j? in C OAHP, WASO c/> rj V?\ m STREET AND NUMBER: 'l - i H~*~! ^|T"-, r £;.
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Area Adventure Hat Creek Ranger District Lassen National Forest
Area Adventure Hat Creek Ranger District Lassen National Forest Welcome The following list of recreation activities are avail- able in the Hat Creek Recreation Area. For more detailed information please stop by the Old Station Visitor Information Center, open April - December, or our District Office located in Fall River Mills. Give Hat Creek Rim Overlook - Nearly 1 million years us a call year-around Mon.- Fri. at (530) 336-5521. ago, active faulting gradually dropped a block of Enjoy your visit to this very interesting country. the Earth’s crust (now Hat Creek Valley) 1,000 feet below the top of the Hat Creek Rim, leaving behind Subway Cave - See an underground cave formed this large fault scarp. This fault system is still “alive by flowing lava. Located just off Highway 89, 1/4 and cracking”. mile north of Old Station junction with Highway 44. The lava tube tour is self guided and the walk is A heritage of the Hat Creek area’s past, it offers mag- 1/3 mile long. Bring a lantern or strong flashlight nificent views of Hat Creek Valley, Lassen Peak, as the cave is not lighted. Sturdy Shoes and a light Burney Mountain, and, further away, Mt. Shasta. jacket are advisable. Subway Cave is closed during the winter months. Fault Hat Creek Rim Fault Scarp Vertical movement Hat Creek V Cross Section of a Lava Tube along this fault system alley dropped this block of earth into its present position Spattercone Trail - Walk a nature trail where volca- nic spattercones and other interesting geologic fea- tures may be seen.
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Apinos, Open-File Report 83-400 This Report Is Preliminary and Has Not
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Talus Fabric, Clast Morphology, and Botanical Indicators of Slope Processes on the Chaos Crags (California Cascades), U.S.A
Document generated on 09/27/2021 5:20 a.m. Géographie physique et Quaternaire Talus fabric, clast morphology, and botanical Indicators of Slope Processes on the Chaos Crags (California Cascades), U.S.A. Relevés botaniques, granulométrie, forme et organisation des débris sur les talus d'éboulis en tant qu'indicateurs des processus dans les Chaos Crags (monts Cascades, Californie, U.S.A.). Morfología y orientación de derrubios clásticos, e indicadores botánicos de procesos de pendiente en Chaos Crags (Cascades, California) Francisco L. Pérez Volume 52, Number 1, 1998 Article abstract The Chaos Crags, a group of dacite domes in the Cascades Mtns (California), URI: https://id.erudit.org/iderudit/004861ar were affected by volcanic debris avalanches ca. 1675 A.D.; these left a sizable DOI: https://doi.org/10.7202/004861ar deposit and a scar on the north mountain flank, now covered by talus. This report examines the fabric and morphology of talus debris, their spatial See table of contents variation, and the geomorphic processes presently affecting the slope. The talus presents a bi-segmented profile with a steep upper rectilinear segment and a shorter concave, basal zone. Debris are sorted by size both along (larger Publisher(s) clasts downslope) and across the talus (larger particles below the cliffs). Shape sorting is weaker, but clast sphericity increases, and elongation decreases, Les Presses de l'Université de Montréal toward the footslope. Upper-talus fabrics (long axes parallel to talus plane and slope) show that clasts there move by sliding, while basal blocks are deposited ISSN by rockfall, which causes more iso- tropic fabrics.
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LASSEMHVOLCAN«C !B8& UNITED STATES Historic Events DEPARTMENT OF THE Lassen INTERIOR OPENING Harold L. Ickes, Secretary AND CLOSING Volcanic 1820 Arguello exploring party first to record DATES DEPEND and name Lassen Peak (St. Joseph's UPON NATIONAL PARK Mountain). 19 40 WEATHER CALIFORNIA CONDITIONS 1850-51 Last lava flow from Cinder Cone. LASSEN PEAK, WITH LAKE HELEN NATIONAL PARK SERVICE IN FOREGROUND Arno B. Cammerer, Director C OJ^TEU^TS 1864 Helen Brodt, first white woman to climb Lassen Peak, made ascent with Major Reading. Lake Helen named for Eruption of Lassen Peak her. 1 in 1915 Cover ASSEN VOLCANIC NA GEOLOGIC HISTORY TIONAL PARK, in northeast The Cascade Range, which is vol Geologic History .... 3 ern California, was created by canic in origin, is not ancient, measured 1906 May 6. Lassen Peak and Cinder Cone L Lassen Peak and Vicinity . 3 act of Congress approved August 9, in geologic time. Its beginning dates National Monuments established. 1916, to preserve Lassen Peak and the back to the Pliocene period, about a Chaos Crags and Chaos area containing spectacular volcanic ex million years before the great ice age Jumbles 6 hibits which surrounds it. This impres or glacial epoch. The present range sive peak, from which the park derives rests upon a great platform of lava Ancestral Mount Tehama . 6 1914 May 30. First known eruption of Las sen Peak since coming of white man. its name, stands near the southern end flows, which issued from many vents Cinder Cone Area ... 7 of the Cascade Mountains and is the and fissures.
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Index [Italic page numbers indicate major references] Abajo Mountains, 382, 388 Amargosa River, 285, 309, 311, 322, Arkansas River, 443, 456, 461, 515, Abort Lake, 283 337, 341, 342 516, 521, 540, 541, 550, 556, Abies, 21, 25 Amarillo, Texas, 482 559, 560, 561 Abra, 587 Amarillo-Wichita uplift, 504, 507, Arkansas River valley, 512, 531, 540 Absaroka Range, 409 508 Arlington volcanic field, 358 Acer, 21, 23, 24 Amasas Back, 387 Aromas dune field, 181 Acoma-Zuni scction, 374, 379, 391 Ambrose tenace, 522, 523 Aromas Red Sand, 180 stream evolution patterns, 391 Ambrosia, 21, 24 Arroyo Colorado, 395 Aden Crater, 368 American Falls Lava Beds, 275, 276 Arroyo Seco unit, 176 Afton Canyon, 334, 341 American Falls Reservoir, 275, 276 Artemisia, 21, 24 Afton interglacial age, 29 American River, 36, 165, 173 Ascension Parish, Louisana, 567 aggradation, 167, 176, 182, 226, 237, amino acid ash, 81, 118, 134, 244, 430 323, 336, 355, 357, 390, 413, geochronology, 65, 68 basaltic, 85 443, 451, 552, 613 ratios, 65 beds, 127,129 glaciofluvial, 423 aminostratigraphy, 66 clays, 451 Piedmont, 345 Amity area, 162 clouds, 95 aggregate, 181 Anadara, 587 flows, 75, 121 discharge, 277 Anastasia Formation, 602, 642, 647 layer, 10, 117 Agua Fria Peak area, 489 Anastasia Island, 602 rhyolitic, 170 Agua Fria River, 357 Anchor Silt, 188, 198, 199 volcanic, 54, 85, 98, 117, 129, Airport bench, 421, 423 Anderson coal, 448 243, 276, 295, 396, 409, 412, Alabama coastal plain, 594 Anderson Pond, 617, 618 509, 520 Alamosa Basin, 366 andesite, 75, 80, 489 Ash Flat, 364 Alamosa
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Notice Concerning Copyright Restrictions
NOTICE CONCERNING COPYRIGHT RESTRICTIONS This document may contain copyrighted materials. These materials have been made available for use in research, teaching, and private study, but may not be used for any commercial purpose. Users may not otherwise copy, reproduce, retransmit, distribute, publish, commercially exploit or otherwise transfer any material. The copyright law of the United States (Title 17, United States Code) governs the making of photocopies or other reproductions of copyrighted material. Under certain conditions specified in the law, libraries and archives are authorized to furnish a photocopy or other reproduction. One of these specific conditions is that the photocopy or reproduction is not to be "used for any purpose other than private study, scholarship, or research." If a user makes a request for, or later uses, a photocopy or reproduction for purposes in excess of "fair use," that user may be liable for copyright infringement. This institution reserves the right to refuse to accept a copying order if, in its judgment, fulfillment of the order would involve violation of copyright law. POTENTIALLY ACTIVE VOLCANIC ZONES IN CALIFORNIA Charles W. Chesterman, Senior Scientist (retired) California Division of Mines and Geology and Curator of Mineralogy, California Academy of Sciences San Francisco, California ABSTRACT zones and 18 other volcanic zones whose latest eruptions are known (or presumed) to Volcanic activity has played a dominant be Quaternary in age, but had not erupted in role in California's long geologic history. the last 2,000,000 years, constitute the Records in rocks of many ages demonstrate known potentially active volcanic zones in that volcanic activity commenced in the California.
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Volcanoes of Lassen Volcanic National Park
National Park Service U.S. Department of the Interior Lassen Volcanic National Park Volcanoes of Lassen West Prospect Cinder Cone Chaos Crags Lassen Peak Mount Diller Eroded Rim of Brokeoff Mount Tehama Mountain Mount Harkness Composite Remnants Mount Conard Cinder Cone Plug Dome Shield Lassen Volcanic National Park lies at the southern end of the Cascade Range and at the western limit of the Basin and Range Province. This intersection of two very unique volcanic regions has led to a great diversity of geologic features within the park. An Eruptive Story This region has been volcanically active for roughly three million years. As the Juan De Fuca Plate continues to subduct beneath North America, more magma will continue to come to the surface to make new volcanoes. Lassen is one of only a few places in the world where all four types of volcanoes can be seen. Can you find an example of each type during your visit? Cinder Cone Cinder cone volcanoes are built by gasous lava particles violently ejected high into the air from a single vent, similar to a popcorn popper. The lava shatters into small fragments that solidify in the air and fall as cinders around the vent. As the cinders accumulate, they pile up to form a circular or oval shaped cone. Cinders, more properly known as scoria, are made of a low density basalt that has a bubbly or vesicular texture. As the lava cools quickly in the air, gases are trapped within the rock, creating this texture. Most cinder cone volcanoes have bowl shaped craters at the summit and lava flows are commonly emited Cinders are very light in weight and shift easily under pressure from their bases.
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Lassen Volcanic National Park
LASSEN VOLCANIC NATIONAL PARK • CALIFORNIA • UNITED STATES DEPARTMENT OF THE INTERIOR NATIONAL PARK SERVICE Lassen Volcanic CALIFORNIA] National Park United States Department of the Interior Harold L. Ickcs, Secretary NATIONAL PARK SERVICE Arno B. Cammerer, Director UNITED STATES GOVERNMENT PRINTING OFFICE WASHINGTON : 1936 Rules and Regulations ' I 'HE PARK regulations are designed for the protection of the natural beauties as well as for the comfort and convenience of visitors. The complete regulations may be seen at the office of the superintendent of the park and at all ranger stations. The following synopsis is for the general guidance of visitors, who are requested to assist in the administration of the park by observing the rules. Automobiles Many sharp unexpected curves exist on the Lassen Peak Loop Highway, and fast driving is dangerous. Park speed limit is 35 miles per hour. Drive slowly, keeping always well to the right, and enjoy the scenery. Fee for automobile permit is SI. Specimens and souvenirs In order that future visitors may enjoy the park unimpaired and unmolested, it is strictly prohibited to break any formation; to take any minerals, lava, pumice, sulphur, or other rock specimens; to injure or molest or disturb any animal, bird, tree, flower, or shrub in the park. Driving nails in trees or cutting the bark of trees in camp grounds is likewise prohibited and the regulation strictly enforced. Deadwood may be gathered for camp fires. Trash Scraps of paper, lunch refuse, orange peelings, kodak cartons, chewing-gum wrappers, and similar trash scattered along the roads and trails and camp grounds and parking areas arc most objectionable and unsightly.
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Reconciling Heterogeneity in Crystal Zoning Data: an Application of Shared Characteristic Diagrams at Chaos Crags, Lassen Volcanic Center, California
Contrib Mineral Petrol (2005) 149: 98–112 DOI 10.1007/s00410-004-0639-2 ORIGINAL PAPER Glen S. Wallace Æ George W. Bergantz Reconciling heterogeneity in crystal zoning data: An application of shared characteristic diagrams at Chaos Crags, Lassen Volcanic Center, California Received: 29 March 2004 / Accepted: 8 November 2004 / Published online: 4 December 2004 Ó Springer-Verlag 2004 Abstract Isotope, trace element, and textural crystal cesses in upper crustal reservoirs (Vance 1962). Crystals zoning patterns record heterogeneity in magmatic sys- are particularly useful as indicators of magmatic pro- tems not resolved by whole rock analyses. These zoning cesses because they both record chemical conditions and data are used to infer crystal residence times, magma act as physical objects (Fig. 1). This is an important mixing, and other magmatic processes in many magmatic distinction from the melt phase, which cannot preserve a systems. We present the shared characteristic diagram structured record of previous environmental conditions. (SCD) as an organizational framework for crystal zoning Additionally, the ‘‘stratigraphy’’ preserved in zoning data that compares information from different phases profiles provides chronological ordering for processes and chemical tracers in a common framework. An recorded in crystal textures and chemical variations. example from Chaos Crags in the Cascade arc, produces Identification of crystal populations with similar zoning three main results. (1) Anorthite zoning profiles in pla- characteristics thus provides the opportunity to mutually gioclase have fewer shared characteristics in mafic constrain the physical and chemical evolution of mag- inclusions than in the host rhyodacite. (2) Single-crystal matic systems (Izbekov et al. 2002; Wallace and Bergantz 87Sr/86Sr data from previous studies (Tepley et al.
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