Remarks on the Formation of Fjords and Cañons Author(S): Robert Brown Source: Journal of the Royal Geographical Society of London, Vol

Total Page:16

File Type:pdf, Size:1020Kb

Remarks on the Formation of Fjords and Cañons Author(S): Robert Brown Source: Journal of the Royal Geographical Society of London, Vol Remarks on the Formation of Fjords and Cañons Author(s): Robert Brown Source: Journal of the Royal Geographical Society of London, Vol. 41 (1871), pp. 348-360 Published by: Wiley on behalf of The Royal Geographical Society (with the Institute of British Geographers) Stable URL: http://www.jstor.org/stable/3698066 . Accessed: 24/06/2014 23:54 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. Wiley and The Royal Geographical Society (with the Institute of British Geographers) are collaborating with JSTOR to digitize, preserve and extend access to Journal of the Royal Geographical Society of London. http://www.jstor.org This content downloaded from 62.122.73.250 on Tue, 24 Jun 2014 23:54:47 PM All use subject to JSTOR Terms and Conditions 348 BROWNon the Formation of Fjords and Cainons. It is true that their wants are few, but some of these wants are very ill-supplied, as in the case of salt for instance, which is very bad in quality and very dear throughout Hookoong; besides, the bulk of the population engage in some kind of barter when not occupied in cultivating, and a people of this kind would not be likely to oppose the opening of a road, because they are capable of seeing that the measure would prove to their advantage. But whilst the people themselves may be trusted not to oppose their own interests, it must be admitted that some diffi- culty lies in the fact that nearly all their Ghams are large slave-holders, and suffer heavily and constantly from the escape of their slaves across the border into British territory. All the Chiefs feel a great deal of irritation against us on account of the extreme abolitionist policy that has been adopted of late years. Still, considering the magnitude of the question, it can hardly be said that the cost of indemnifying a score or so of petty Chiefs for the loss of their slaves would be a heavy impost, and it would seem to be no more than fair to give the Ghams the means of purchasing that amount of labour from their servants which they have been accustomed to obtain by force, if we interfere to prevent the exaction. As there is now a British officer resident at Bhamo, it might be possible to send a party up the Irrawaddv to explore and make a rough survey of the river as far as Mainlah. In all pro- bability, a party starting from Assam would be able to reach Mainlah, for, since we have returned, a letter has been received from the Denai Ghams inviting us to meet them next year at Serojmo. Serojmo is said to be only six days from Mainlah. XIV.--Remarks on the Formation of Fjords and Caions. By Dr. ROBERT BROWN, M.A., F.R.G.S., President of the Royal Physical Society, Edinburgh. IN March, 1869, I presented to this Society a paper " On the Formation of Fjords, Canons,Benches, Prairies, and Intermittent Rivers," an extract from which was published in the 'Pro- ceedings,' vol. xiii., No. 3, and the entire paper in the 'Journal,' vol. xxix. The doctrines broached have been favourably received on the Continent and in America, and by many of those in this country best able to judge regarding their reasonableness. My paper, however, in so far as regards the theory of the forina- This content downloaded from 62.122.73.250 on Tue, 24 Jun 2014 23:54:47 PM All use subject to JSTOR Terms and Conditions BROWNon the Formation of Fjords and Canons. 349 tion of fjords, has been honoured by two special attacks having been directed against it. The first* of these in time is by Mr. Joseph W. Tayler, so long connected with the cryolite mines of Arksut Fjord, in Greenland; the second t is by the late illustrious President of this Society. Though no words coming from Sir Roderick Murchison on a subject of physical geology can fail to be received with the careful attention and pro- found respect which his long and pre-eminent services to science entitle them to, and though well aware of Mr. Tayler's long residence in Greenland, yet, with every respect for both, I must humbly submit that they have not made good their case for the doctrine that glaciers have nothing whatever to do with the formation of fjords. On the contrary, after having studied the subject anew, and visited, since my paper was published, several of the regions where fjords abound, and which are cited in illus- tration of my ideas in the paper mentioned, I am convinced- even more than before-that the explanation I then gave, if not exactly the true one, is at least nearer the truth than the one opposed to it. It is with a view to recapitulate these arguments, and not with a view to bolster up a theory, which must eventually stand or fall on its own merits, that I ask a place in the Society's Transactions for these additional remarks. The question is not so much whether fjords were hollowed out by glaciers, but simply a renewal of the contest between the rival schools of " catastrophists,"who believe that all the great physical features of the world have been caused by some cataclysm or cataclysms of nature; and of " uniformitarians,"who teach that the uniform and long-continued action of the forces at present acting on the earth's surface would be sufficient to account for many features hitlierto ascribed by their rivals to huge throes of nature. The whole subject has been discussed over and over again, and all the main arguments which have been brought to bear against this particular application of the uniformitarian doctrines, have been advanced against some other application of it, in explana- tion of other physical features. Nor have the supporters of the contrary view been backward in replying; and the whole matter stands in statu quo, or as the leanings of physical geologists bear to one side or other of the controversy. Foremost and chief of the school of catastrophists was our distinguished President, and our Transactions almost yearly bear witness to the skill, eloquence, and learning with which he has employed the weapons of his party against the adherents of the opposite view. Originally, when he visited the Arctic Regions for the first time ten years ago, a disciple of Sir Roderick in this country, * 4 Proceedings,' vol. xiv. p. 156. t Ibid. p. 327. This content downloaded from 62.122.73.250 on Tue, 24 Jun 2014 23:54:47 PM All use subject to JSTOR Terms and Conditions 350 BROWNon the Formation of Fjords and Caions. and of von Buch in Germany, the present writer must confess that additional observation and more extensive travel have led him to desert to the enemy. The paper mentioned is a result of his studies under the new banner, and these further remarks must be taken as his justification of the faith that is in him. The arguments brought against him both by Sir Roderick and 1Mr. Tayler are so nearly identical, so far as they go, that he may be permitted to reply to them conjointly. Had, however, Mr. Tayler waited until the publication of my complete paper, he would have spared himself and the Society some of his remarks, which his impatience for what seemed an easy victory has induced him to advance against the imperfect statement of my case in the fragmentary report published in the 'Proceedings.' Unfortunately he commences his arguments by entirely mis- understanding my views. Glaciers and Fjords.-When Mr. Tayler says that he " takes it for granted" that by " hollowing" I mean causing fjords to be where none were before, he takes for granted what I never did grant. On the contrary, I have always shunned the extreme views of either geological school, which would assign the origin of all physical features alone to the causes of which they are the advocate. I believe, and consider that in my paper I made it clear, that as a glacier outpour in approaching the coast, or in falling from an elevation, always takes the line of least resistance; so in former times it sought the valleys and depressions then existing in the coast-line of Greenland. It might even have taken the "gulches" and ravines which former volcanic force had formed. But at that time Greenland, Norway, and other fjord-indented countries did not present the aspect they do now. Fjords, as we understand them now, did not then exist. It was to the long-continued action of the glaciers moving over these valley-beds that the deep uniform inlets are due. Probably the sea assisted the glacier after the coast had fallen. At that time the present coast-line of these continents did not exist, and when Mr. Tayler attempts to disprove my theory by talking of the present fjords of Greenland as if they were of primeval origin, I fear that he does not clearly under- stand the doctrines held by all geologists, that the Greenland coast has been undergoing a continual oscillation.
Recommended publications
  • Baseline Water Quality Inventory for the Southwest Alaska Inventory and Monitoring Network, Kenai Fjords National Park
    Baseline Water Quality Inventory for the Southwest Alaska Inventory and Monitoring Network, Kenai Fjords National Park Laurel A. Bennett National Park Service Southwest Alaska Inventory and Monitoring Network 240 W. 5th Avenue Anchorage, AK 99501 April 2005 Report Number: NPS/AKRSWAN/NRTR-2005/02 Funding Source: Southwest Alaska Network Inventory and Monitoring Program, National Park Service File Name: BennettL_2005_KEFJ_WQInventory_Final.doc Recommended Citation: Bennett, L. 2005. Baseline Water Quality Inventory for the Southwest Alaska Inventory and Monitoring Network, Kenai Fjords National Park. USDI National Park Service, Anchorage, AK Topic: Inventory Subtopic: Water Theme Keywords: Reports, inventory, freshwater, water quality, core parameters Placename Keywords: Alaska, Kenai Fjords National Park, Southwest Alaska Network, Aialik Bay, McCarty Fjord, Harrison Bay, Two Arm Bay, Northwestern Fjord, Nuka River, Delight Lake Kenai Fjords Water Quality Inventory - SWAN Abstract A reconnaissance level water quality inventory was conducted at Kenai Fjords National Park during May through July of 2004. This project was initiated as part of the National Park Service Vital Signs Inventory and Monitoring Program in an effort to collect water quality data in an area where little work had previously been done. The objectives were to collect baseline information on the physical and chemical characteristics of the water resources, and, where possible, relate basic water quality parameters to fish occurrence. Water temperatures in Kenai Fjords waters generally met the Alaska Department of Environmental Conservation (DEC) regulatory standards for both drinking water and growth and propagation of fish, shellfish, other aquatic life and wildlife. Water temperature standard are less than or equal to 13° C for spawning and egg and fry incubation, or less than or equal to 15° C for rearing and migration (DEC 2003).
    [Show full text]
  • An Esker Group South of Dayton, Ohio 231 JACKSON—Notes on the Aphididae 243 New Books 250 Natural History Survey 250
    The Ohio Naturalist, PUBLISHED BY The Biological Club of the Ohio State University. Volume VIII. JANUARY. 1908. No. 3 TABLE OF CONTENTS. SCHEPFEL—An Esker Group South of Dayton, Ohio 231 JACKSON—Notes on the Aphididae 243 New Books 250 Natural History Survey 250 AN ESKER GROUP SOUTH OF DAYTON, OHIO.1 EARL R. SCHEFFEL Contents. Introduction. General Discussion of Eskers. Preliminary Description of Region. Bearing on Archaeology. Topographic Relations. Theories of Origin. Detailed Description of Eskers. Kame Area to the West of Eskers. Studies. Proximity of Eskers. Altitude of These Deposits. Height of Eskers. Composition of Eskers. Reticulation. Rock Weathering. Knolls. Crest-Lines. Economic Importance. Area to the East. Conclusion and Summary. Introduction. This paper has for its object the discussion of an esker group2 south of Dayton, Ohio;3 which group constitutes a part of the first or outer moraine of the Miami Lobe of the Late Wisconsin ice where it forms the east bluff of the Great Miami River south of Dayton.4 1. Given before the Ohio Academy of Science, Nov. 30, 1907, at Oxford, O., repre- senting work performed under the direction of Professor Frank Carney as partial requirement for the Master's Degree. 2. F: G. Clapp, Jour, of Geol., Vol. XII, (1904), pp. 203-210. 3. The writer's attention was first called to the group the past year under the name "Morainic Ridges," by Professor W. B. Werthner, of Steele High School, located in the city mentioned. Professor Werthner stated that Professor August P. Foerste of the same school and himself had spent some time together in the study of this region, but that the field was still clear for inves- tigation and publication.
    [Show full text]
  • Impacts of Glacial Meltwater on Geochemistry and Discharge of Alpine Proglacial Streams in the Wind River Range, Wyoming, USA
    Brigham Young University BYU ScholarsArchive Theses and Dissertations 2019-07-01 Impacts of Glacial Meltwater on Geochemistry and Discharge of Alpine Proglacial Streams in the Wind River Range, Wyoming, USA Natalie Shepherd Barkdull Brigham Young University Follow this and additional works at: https://scholarsarchive.byu.edu/etd BYU ScholarsArchive Citation Barkdull, Natalie Shepherd, "Impacts of Glacial Meltwater on Geochemistry and Discharge of Alpine Proglacial Streams in the Wind River Range, Wyoming, USA" (2019). Theses and Dissertations. 8590. https://scholarsarchive.byu.edu/etd/8590 This Thesis is brought to you for free and open access by BYU ScholarsArchive. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. Impacts of Glacial Meltwater on Geochemistry and Discharge of Alpine Proglacial Streams in the Wind River Range, Wyoming, USA Natalie Shepherd Barkdull A thesis submitted to the faculty of Brigham Young University in partial fulfillment of the requirements for the degree of Master of Science Gregory T. Carling, Chair Barry R. Bickmore Stephen T. Nelson Department of Geological Sciences Brigham Young University Copyright © 2019 Natalie Shepherd Barkdull All Rights Reserved ABSTRACT Impacts of Glacial Meltwater on Geochemistry and Discharge of Alpine Proglacial Streams in the Wind River Range, Wyoming, USA Natalie Shepherd Barkdull Department of Geological Sciences, BYU Master of Science Shrinking alpine glaciers alter the geochemistry of sensitive mountain streams by exposing reactive freshly-weathered bedrock and releasing decades of atmospherically-deposited trace elements from glacier ice. Changes in the timing and quantity of glacial melt also affect discharge and temperature of alpine streams.
    [Show full text]
  • Glacial Landforms of the Puget Lowland
    Oak Harbor i t S k a g Sauk Suiattle Suiattle River B a y During the advance and retreat of Indian Reservation Glacial Landforms of the the Puget lobe, drainages around the ice sheet were blocked, forming multiple proglacial Camano Island Stillaguamish lakes. The darker colors on this Indian map indicate lower elevations, Reservation Puget Lowland and show many of these t S Arlington Spi ss valleys. The Stillaguamish, e a en P g n o Snohomish, Snoqualmie, and Striped Peak u r D r Hook a Puyallup River valleys all once t z US Interstate 5 Edi Sauk River Lower Elwha t S contained proglacial lakes. Klallam o u s There are many remnants of Indian g Port a Reservation US Highway 101 Jamestown Townsend a n these lakes left today, such as S’Klallam A Quimper Peninsula Port Angeles Indian Lake Washington and Lake d Reservation Sequim P Sammamish, east of Seattle. o m H P Miller Peninsula r t o a S T l As the Puget lobe retreated, i m Tulalip e o s w McDonald Mountain q r e Indian lake outflows, glacial D n s u i s s s Reservation i c e a m o a H S. F. Stillaguamish River v n meltwater, and glacial outburst e d a g Marysville B r B l r e a y a b flooding all contributed to y o y t Elwha River B r dozens of channels that flowed y a y southwest to the Chehalis River Round Mountain Lookout Hill Lake Stevens I Whidbey Island at the southwest corner of this n d map.
    [Show full text]
  • Concepts & Synthesis
    CONCEPTS & SYNTHESIS EMPHASIZING NEW IDEAS TO STIMULATE RESEARCH IN ECOLOGY Ecological Monographs, 78(1), 2008, pp. 41–67 Ó 2008 by the Ecological Society of America GLACIAL ECOSYSTEMS 1,9 2 3 4 5 ANDY HODSON, ALEXANDRE M. ANESIO, MARTYN TRANTER, ANDREW FOUNTAIN, MARK OSBORN, 6 7 8 JOHN PRISCU, JOHANNA LAYBOURN-PARRY, AND BIRGIT SATTLER 1Department of Geography, University of Sheffield, Sheffield S10 2TN United Kingdom 2Institute of Biological Sciences, University of Wales, Aberystwyth SY23 3DA United Kingdom 3School of Geographical Sciences, University of Bristol, Bristol BS8 1SS United Kingdom 4Departments of Geology, Portland State University, Portland, Oregon 97207-0751 USA 5Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN United Kingdom 6Department of Biological Sciences, Montana State University, Bozeman, Montana 59717 USA 7Office of the PVC Research, University of Tasmania, Hobart Tas 7001 Australia 8Institute of Ecology, University of Innsbruk, Technikerstrabe 25 A-0620 Austria Abstract. There is now compelling evidence that microbially mediated reactions impart a significant effect upon the dynamics, composition, and abundance of nutrients in glacial melt water. Consequently, we must now consider ice masses as ecosystem habitats in their own right and address their diversity, functional potential, and activity as part of alpine and polar environments. Although such research is already underway, its fragmentary nature provides little basis for developing modern concepts of glacier ecology. This paper therefore provides a much-needed framework for development by reviewing the physical, biogeochemical, and microbiological characteristics of microbial habitats that have been identified within glaciers and ice sheets. Two key glacial ecosystems emerge, one inhabiting the glacier surface (the supraglacial ecosystem) and one at the ice-bed interface (the subglacial ecosystem).
    [Show full text]
  • KEFJ Assessment
    National Park Service U.S. Department of the Interior Natural Resource Program Center Assessment of Coastal Water Resources and Watershed Conditions Kenai Fjords National Park Natural Resource Report NPS/NRPC/WRD/NRR—2010/192 ON THE COVER Top left: Bear Glacier; top right: Holgate Glacier; bottom left: Nature center at Exit Glacier area; bottom right: Aialik Cape. Photographs by S. Nagorski. ______________________________________________________________________________ Assessment of Coastal Water Resources and Watershed Conditions Kenai Fjords National Park Natural Resource Report NPS/NRPC/WRD/NRR—2010/192 Sonia Nagorski, Eran Hood, and Sanjay Pyare Environmental Science Program University of Alaska Southeast Juneau, AK 99801 Ginny Eckert School of Fisheries and Ocean Sciences University of Alaska Fairbanks Juneau, AK 99801 This report was prepared under Task Order J9W88050014 of the Pacific Northwest Cooperative Ecosystem Studies Unit (agreement CA90880008). May 2010 U.S. Department of the Interior National Park Service Natural Resource Program Center Fort Collins, Colorado The Natural Resource Publication series addresses natural resource topics that are of interest and applicability to a broad readership in the National Park Service and to others in the management of natural resources, including the scientific community, the public, and the NPS conservation and environmental constituencies. Manuscripts are peer-reviewed to ensure that the information is scientifically credible, technically accurate, appropriately written for the audience, and is designed and published in a professional manner. The Natural Resource Technical Reports series is used to disseminate the peer-reviewed results of scientific studies in the physical, biological, and social sciences for both the advancement of science and the achievement of the National Park Service’s mission.
    [Show full text]
  • The Surficial Geology of the Branford Quadrangle With
    Open Map Open Figure 4 Open Figure 5 The Surficial Geology of the Branford Quadrangle WITH MAP BY RICHARD FOSTER FLINT 1·-------,_,T---------; I (. \ I' I, I: ,~! ~ i\ ~ , (~ STATE GEOLOGICAL AND NATURAL HISTORY SURVEY OF CONNECTICUT A DIVISION OF THE DEPARTMENT OF AGRICULTURE AND NATURAL RESOURCES 1964 QUADRANGLE REPORT NO. 14 \ --- - --- State Geological and Natural History Survey of Connecticut A DIVISION OF THE DEPARTMENT OF AGRICULTURE AND NATURAL RESOURCES HoN. JoHN N. DEMPSEY, Governor of Connecticut J osEPH N. GILL, Com missioner of the Department of Agriculture and Natural Resources COMMISSIONERS HoN. JottN N. DDIPSEY, Governor of Connecticut DR. J. WENDELL BURGER, Department of Biology, Trinity College DR. RICHARD H. GoonwIN, Department of Botany, Connecticut College DR. JoHN B. LucKE, Department of Geology, University of Connecticut DR. }oE WEBB PEOPLES, Department of Geology, Wesleyan University DR. JoHN H.oocERs, Department of Geology, Yale University DIRECTOR JoE WEBB PEOPLES, Ph.D. Wesleyan University, Middletown, Connecticut EDITOR Lou WILLIAMS PAGE, Ph.D. DISTRIBUTION AND EXCHANGE AGENT State Librarian State Library, Hartford ii TABLE OF CONTENTS Page Abstract 1 Introduction ............................................................................ ...................................... 1 Bedrock geology .......................................................................................................... 3 Topography and drainage .......................................................................................
    [Show full text]
  • Glaciers of the Canadian Rockies
    Glaciers of North America— GLACIERS OF CANADA GLACIERS OF THE CANADIAN ROCKIES By C. SIMON L. OMMANNEY SATELLITE IMAGE ATLAS OF GLACIERS OF THE WORLD Edited by RICHARD S. WILLIAMS, Jr., and JANE G. FERRIGNO U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1386–J–1 The Rocky Mountains of Canada include four distinct ranges from the U.S. border to northern British Columbia: Border, Continental, Hart, and Muskwa Ranges. They cover about 170,000 km2, are about 150 km wide, and have an estimated glacierized area of 38,613 km2. Mount Robson, at 3,954 m, is the highest peak. Glaciers range in size from ice fields, with major outlet glaciers, to glacierets. Small mountain-type glaciers in cirques, niches, and ice aprons are scattered throughout the ranges. Ice-cored moraines and rock glaciers are also common CONTENTS Page Abstract ---------------------------------------------------------------------------- J199 Introduction----------------------------------------------------------------------- 199 FIGURE 1. Mountain ranges of the southern Rocky Mountains------------ 201 2. Mountain ranges of the northern Rocky Mountains ------------ 202 3. Oblique aerial photograph of Mount Assiniboine, Banff National Park, Rocky Mountains----------------------------- 203 4. Sketch map showing glaciers of the Canadian Rocky Mountains -------------------------------------------- 204 5. Photograph of the Victoria Glacier, Rocky Mountains, Alberta, in August 1973 -------------------------------------- 209 TABLE 1. Named glaciers of the Rocky Mountains cited in the chapter
    [Show full text]
  • The Mendon Kame Area, by H. L
    Vol. 6 J No.6 PROCEEDINGS OF" THE ROCHESTER ACADEMY OF" SCIENCE VOL, 6, PP. 19S-21!!, PLATES 76-61 THE ~mXDOX KA)'lE AREA BY HERMAN L, FAIRCHILD ROCHESTER, N, y, Pl'BT,TSHJW BY THE SOCnn'Y ArGI'ST, 1926 PROCEEDINGS O F THE ROCHESTER ACADEMY OF SCIENCE VOL 6 . PP . 195- 215 PLATES 76-8 1 AU G U ST , 1926 T HE ~ I El\D()1'\ Ki\i\IE ARG: \ Ih I-h R.\I.\ N L. FAIR ']IILD CONTEI TS 1'.\ (;E5 l"o rclI' ord ... .. .... ...... ... .. ... .. .. .. ... ..... ... .. 1')5 Locati on ; .\rea .... .. .. .. .. .... ... ... .. .... )98 Origin ; Lake 11 istory . ... ... .... .. ......... .. .. .... ....... .. 199 Relations . ...... ...... ... .... .. ... .... ..... .. ...... .... .. .. .. ... .. 202 Topography ...... ....... .... ... .. .. ...... ..... ..... .. .. 203 Composition ; Structure . .. ... ... .. .. ..... ... ..... ... ..... .... .. 204 Features ...... .... .......... .. .. ... ... ... .... ... ..... ... .. 206 D rumlin s .... .. .. .. .. .............. ..... ... .... 206 Eskers . .. 206 Kettles ...... .... .. ...... ... ........ ..... .... .. ...... .. ... 208 Lakes . ..... .. ... .. .. ... .... ..... ... .. ...... .. ..... .. 209 Botanical Interest . .... ... .... .... ...... ... ........... .. 210 Aboriginal Occupation 2 11 List of \Vritings . ... 2 14 ]70 1 ~E \\" OIW T he nUl1l erous and striking g lacial features of western "t\ew York have been the subject of many scienti fic papers, and the re­ ma rkable g rol1p o f g ravel hills in the to\\"n o f l\Iendon, 10 miles south or l~oc h este r , has not been overlooked. B ut the hills a re deserving of special cl escri ption, because they have n6 superior in their display of the peculiar cha racters o f morainal deposits. T he pi ctorial record is made in a nticipation of the possible defacement by the g rO\\"th of population ;\lld the march o f improve l11 ent(!) The destrl1 ction o f some of the most beautiful portions of the P innacle l~a n ge is a w ~lrnin g of the danger to other features o f our fin est scenery.
    [Show full text]
  • California Glacial Till and the Glaciated Valley Landsystem: Engineering Classification and Properties
    San Jose State University SJSU ScholarWorks Master's Theses Master's Theses and Graduate Research Fall 2013 California Glacial Till and the Glaciated Valley Landsystem: Engineering Classification and Properties Matthew Mark Lattin San Jose State University Follow this and additional works at: https://scholarworks.sjsu.edu/etd_theses Recommended Citation Lattin, Matthew Mark, "California Glacial Till and the Glaciated Valley Landsystem: Engineering Classification and Properties" (2013). Master's Theses. 4392. DOI: https://doi.org/10.31979/etd.npfw-e78s https://scholarworks.sjsu.edu/etd_theses/4392 This Thesis is brought to you for free and open access by the Master's Theses and Graduate Research at SJSU ScholarWorks. It has been accepted for inclusion in Master's Theses by an authorized administrator of SJSU ScholarWorks. For more information, please contact [email protected]. CALIFORNIA GLACIAL TILL AND THE GLACIATED VALLEY LANDSYSTEM: ENGINEERING CLASSIFICATION AND PROPERTIES A Thesis Presented to The Faculty of the Department of Civil and Environmental Engineering San José State University In Partial Fulfillment of the Requirements for the Degree Master of Civil Engineering by Matthew M. Lattin December 2013 © 2013 Matthew M. Lattin ALL RIGHTS RESERVED The Designated Thesis Committee Approves the Thesis Titled CALIFORNIA GLACIAL TILL AND THE GLACIATED VALLEY LANDSYSTEM: ENGINEERING CLASSIFICATION AND PROPERTIES by Matthew M. Lattin APPROVED FOR THE DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING SAN JOSÉ STATE UNIVERSITY December 2013 Dr. Laura Sullivan-Green Department of Civil and Environmental Engineering Dr. Kurt McMullin Department of Civil and Environmental Engineering Martin M. McIlroy, P.G., P.E. Vice President, Taber Consultants ABSTRACT CALIFORNIA GLACIAL TILL AND THE GLACIATED VALLEY LANDSYSTEM: ENGINEERING CLASSIFICATION AND PROPERTIES by Matthew M.
    [Show full text]
  • Deglaciation of the Upper Androscoggin River Valley and Northeastern White Mountains, Maine and New Hampshire
    Maine Geological Survey Studies in Maine Geology: Volume 6 1989 Deglaciation of the Upper Androscoggin River Valley and Northeastern White Mountains, Maine and New Hampshire Woodrow B. Thompson Maine Geological Survey State House Station 22 Augusta, Maine 04333 Brian K. Fowler Dunn Geoscience Corporation P.O. Box 7078, Village West Laconia, New Hampshire 03246 ABSTRACT The mode of deglaciation of the White Mountains of northern New Hampshire and adjacent Maine has been a controversial topic since the late 1800's. Recent workers have generally favored regional stagnation and down wastage as the principal means by which the late Wisconsinan ice sheet disappeared from this area. However, the results of the present investigation show that active ice persisted in the upper Androscoggin River valley during late-glacial time. An ice stream flowed eastward along the narrow part of the Androscoggin Valley between the Carter and Mahoosuc Ranges, and deposited a cluster of end-moraine ridges in the vicinity of the Maine-New Hampshire border. We have named these deposits the" Androscoggin Moraine." This moraine system includes several ridges originally described by G. H. Stone in 1880, as well as other moraine segments discovered during our field work. The ridges are bouldery, sharp-crested, and up to 30 m high. They are composed of glacial diamictons, including flowtills, with interbedded silt, sand, and gravel. Stone counts show that most of the rock debris comprising the Androscoggin Moraine was derived locally, although differences in provenance may exist between moraine segments on opposite sides of the valley. Meltwater channels and deposits of ice-contact stratified drift indicate that the margin of the last ice sheet receded northwestward.
    [Show full text]
  • Specialized Meltwater Biodiversity Persists Despite Widespread Deglaciation
    Specialized meltwater biodiversity persists despite widespread deglaciation Clint C. Muhlfelda,b,1,2, Timothy J. Clinea,2, J. Joseph Gierscha,2, Erich Peitzscha, Caitlyn Florentinea, Dean Jacobsenc, and Scott Hotalingd aNorthern Rocky Mountain Science Center, US Geological Survey, Glacier National Park, West Glacier, MT 59936; bFlathead Lake Biological Station, University of Montana, Polson, MT 59860; cFreshwater Biological Section, Department of Biology, University of Copenhagen, 2100 Copenhagen, Denmark; and dSchool of Biological Sciences, Washington State University, Pullman, WA 99164 Edited by Warwick F. Vincent, Laval University, Quebec City, Canada, and accepted by Editorial Board Member David W. Schindler March 30, 2020 (received for review January 29, 2020) Glaciers are important drivers of environmental heterogeneity and We conducted this test in Glacier National Park (GNP), biological diversity across mountain landscapes. Worldwide, gla- Montana, a protected landscape (e.g., World Heritage Site and ciers are receding rapidly due to climate change, with important Biosphere Reserve) that has experienced widespread glacier loss consequences for biodiversity in mountain ecosystems. However, since the end of the Little Ice Age (LIA, ca. 1850; Fig. 1). Like the effects of glacier loss on biodiversity have never been many mountain ranges worldwide, this region harbors an ex- quantified across a mountainous region, primarily due to a lack tensive network of high-elevation streams that are highly heter- of adequate data at large spatial and temporal scales. Here, we ogenous in terms of hydrologic source contributions, temperature, combine high-resolution biological and glacier change (ca. < 1850–2015) datasets for Glacier National Park, USA, to test the and flow regimes across small spatial extents ( 1 km).
    [Show full text]