DOCSLIB.ORG

Carry Bay Causeway a Field Study and Hydrodynamic Model

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Carry Bay Causeway a Field Study and Hydrodynamic Model Carry Bay Causeway A Field Study and Hydrodynamic Model Prepared for the Vermont Department of Environmental Conservation — January 2004 BINKERD ENVIRONMENTAL Inc Table of Contents Table of Contents......................................................................................................................2 Table of Figures ........................................................................................................................3 Abstract.....................................................................................................................................4 1.0 INTRODUCTION ....................................................................................................................5 1.1 Objectives ...........................................................................................................................5 1.2 Overall Study Plan ..............................................................................................................5 1.3 Related Studies and Reports ..............................................................................................6 1.4 Methodology .......................................................................................................................7 2.0 FIELD METHODS AND OTHER DATA SOURCES ...............................................................8 2.1 Study Area and Sampling Stations .....................................................................................8 2.2 Carry Bay Causeway – Physical Description....................................................................11 2.3 Currents ............................................................................................................................11 2.4 Water Quality ....................................................................................................................12 2.5 Other Sources of Data ......................................................................................................13 3.0 OVERVIEW OF FIELD MEASUREMENTS ..........................................................................15 3.1 Current Measurements .....................................................................................................15 3.2 Water Quality Measurements............................................................................................15 4.0 DISCUSSION OF FIELD RESULTS.....................................................................................16 4.1 Water Quality ....................................................................................................................16 4.2 Currents - General ............................................................................................................27 5.0 MATHEMATIONAL MODEL AND SIMULATIONS ...............................................................39 5.1 Application of the Mathematical Model to Carry Bay ........................................................39 5.2 Preliminary Model Considerations ....................................................................................39 5.3 Calibration and Acceptance ..............................................................................................43 5.4 Simulations of Proposed Modifications .............................................................................44 6.0 WAVE ANALYSIS.................................................................................................................57 7.0 SUMMARY OF RESULTS AND CONCLUSIONS ................................................................58 7.1 Survey Results..................................................................................................................58 7.2 Model Results ...................................................................................................................59 Acknowledgements.................................................................................................................62 [Note: This paper was published as an Adobe 5.0 PDF file in color because many of the charts rely on color to present data. If the paper is viewed in black and white, this information will not be available. When viewing the file, it is suggested that the Adobe Reader Zoom factor be set at 100% to maintain the original image quality. If you wish to enlarge a section, we suggest you use 200%. Copies of this report are available at http://www.binkerd.com/carrybay] Carry Bay Causeway Report - 2 - BINKERD ENVIRONMENTAL Inc Table of Figures Figure 2.1: Overall View of Survey Area..........................................................................................8 Figure 2.2: Detail of Northern Portion of Survey Area .....................................................................9 Figure 2.3: Detail of Southern Portion of Survey Area...................................................................10 Figure 2.4: Missisquoi River Discharge – Summer 2003...............................................................13 Figure 2.5: Lake Champlain Water Levels at Richelieu River – Summer 2003.............................14 Figure 4.1: Temperature vs. Depth Station 24 (July).....................................................................17 Figure 4.2: Temperature vs. Depth Station1 (July)........................................................................18 Figure 4.3: Temperature vs. Depth Station 2 (July).......................................................................18 Figure 4.4: Temperature vs. Depth Station 3 (July).......................................................................19 Figure 4.5: Temperature vs. Depth Station 4 (July).......................................................................19 Figure 4.6: Temperature vs. Depth Station 5 (July).......................................................................20 Figure 4.7: Temperature vs. Depth Station 33 (August) ................................................................21 Figure 4.8: Temperature Contour La Motte Passage ....................................................................21 Figure 4.9: Temperature Contour La Motte Passage ....................................................................22 Figure 4.10: Temperature Contour Carry Bay ...............................................................................22 Figure 4.11: Temperature Contour Carry Bay ...............................................................................22 Figure 4.20: Chloride & Phosphorous – La Motte Passage...........................................................24 Figure 4.21: Chloride & Phosphorous – Alburg Passage ..............................................................25 Figure 4.22: Chloride & Phosphorous – Carry Bay........................................................................25 Figure 4.23: Chloride – Alburg Passage (July) ..............................................................................26 Figure 4.80: Current & Wind at Isle La Motte Causeway – Station 7 ............................................28 Figure 4.30: Current with 10-foot Pole – Station 24.......................................................................29 Figure 4.31: Current with 10-foot Jug – Station 24 ........................................................................30 Figure 4.32: Current with 20-foot Jug – Station 24 ........................................................................30 Figure 4.33: Current with 35-foot Jug – Station 24 ........................................................................30 Figure 4.34: Current with 50-foot Jug – Station 24 ........................................................................31 Figure 4.35: Current with 100-foot Jug – Station 24 ......................................................................31 Figure 4.40: Current with 10-foot Pole – Station 3.........................................................................32 Figure 4.41: Current with 20-foot Jug – Station 3 ..........................................................................32 Figure 4.42: Current with 30-foot Jug – Station 3 ..........................................................................32 Figure 4.60: Current with 10-foot Pole – Station 33.......................................................................33 Figure 4.61: Current with 10-foot Jug – Station 33 ........................................................................33 Figure 4.62: Current with 20-foot Jug – Station 33 ........................................................................34 Figure 4.63: Current with 35-foot Jug – Station 33 ........................................................................34 Figure 4.64: Current with 50-foot Jug – Station 33 ........................................................................34 Figure 4.65: Current with 70-foot Jug – Station 33 ........................................................................35 Figure 4.50: Current and Local Wind Direction – Station 8 (July) .................................................36 Figure 4.70: Current with 10-foot Pole (GPS) – Station 8 (August)...............................................37 Figure 5.1: Predicted vs. Measured Chloride ................................................................................44 Figure 5.2: Predicted Chloride – July Average ..............................................................................46 Figure 5.10: Model Chloride Predictions – Typical Summer Conditions .......................................47 Figure
Load more

Recommended publications
  • Trip E STRATIGRAPHY of the CHAZY GROUP (MIDDLE
    81 Trip E STRATIGRAPHY OF THE CHAZY GROUP (MIDDLE ORDOVICIAN) IN THE NORTHERN CHAMPLAIN VALLEY by Frederick C. Shaw Herbert H. Lehman College Bronx, New York INTRODUCTION The Chazy Limestone (the oldest Middle Ordovician Group of the Cham­ plain Valley) was first named by Emmons (1842) from exposures 15 miles north of Plattsburgh at Chazy, New York. Here and elsewhere in the nor­ thern Champlain Valley (Fig. 1) the unit outcrops on a variety of normal fault blocks. Given the low dips and heavy cover, Chazy stratigraphy is most easily understood from various shore outcrops around Lake Champlain. Valcour Island, southeast of Plattsburgh, offers perhaps the best sec­ tion of the Chazy, and has been intensively studied (Raymond, 1905; Hud­ son, 1931; Oxley and Kay, 1959; Fisher, 1968; Shaw, 1968). The Isle La Motte, Vermont, exposures to be covered in this trip and trip Fare those studied by many of the same authors and, in addition, display the lower contact of the Chazy with the underlying Ordovician dolostones of Canadian age. In the northern Champlain Valley (Valcour Island and north to the International Boundary), the Chazy Limestone (now Group) consists of about 800 feet of quartz sandstones, calcarenites, dolomitic calcilu­ tites and biohermal masses (Fig. 2). Three formations, Day Point, Crown Point, and Valcour, in ascending order, were proposed by Cushing (1905) and have persisted to the present, albeit with some controversy (Fisher, 1968; Shaw, 1968). Oxley and Kay (1959) further subdivided the Day Point and Valcour into members, those of the Day Point (Head, Scott, Wait, Fleury) coming from southern Isle La Motte in the area to be visited.
    [Show full text]
  • Montréal-Est 40 15 Saint-Hyacinthe 640 138 440 25 223 Sainte-Julie 20 344 229 40 Boucherville Beloeil
    Western New England Greenway Upper Housatonic Valley National Heritage Area & Champlain Valley National Heritage Partnership Long Island Sound to Montreal Quebec - Route Map 6 of 6: North Hero, Vermont to Montreal, Quebec National Park Service/U.S. Department of the Interior rom North Hero, VT to Montreal it is flat so it is F the wind to be aware of not the hills. A short 10 mile loop around Isle La Motte will take you past Quebec City quarries with the oldest known fossils in the world and the site of Samuel de Champlain’s landing in QUEBEC 40 173 Vermont. Have your passport ready when you get to 20 the border follow the directions to meet Route Verte Montreal 55 in Lacoile, QC. Halfway to St. Jean sur Richelieu are 201 10 Sherbrooke signs Route de Forts which will lead you Ft. Lennox. 15 St. Jean sur Richelieu A short boat ride to the island fort is both fun and 89 ME educational. In St. Jean sur Richelieu the bike path 91 Burlington along the Chambly Canal starts at Pont Gouin and Augusta Montpelier 95 ends near Ft. Chambly. 87 VT 93 Portland Chambly to Montreal becomes more urban the farther 89 NH you go but it is all on bike paths or bike lanes. Once NY Concord you enter the Montreal area you are in a complex with Manchester hundreds of miles of bike paths and lanes and unless Albany 91 93 90 it’s race time you can ride the Formula One track. MA 90 Boston Springeld Providence Hartford RI 87 CT 95 84 New York City Western New England Greenway Section 6: North Hero, Vermont to Montreal, Quebec Cue Sheet VT 211.7 NORTH HERO - Continue on Rt.
    [Show full text]
  • Archaeology, History and Memory at Fort St Anne, Isle La Motte, Vermont
    W&M ScholarWorks Dissertations, Theses, and Masters Projects Theses, Dissertations, & Master Projects 2006 Enshrining the Past: Archaeology, History and Memory at Fort St Anne, Isle La Motte, Vermont Jessica Rose Desany College of William & Mary - Arts & Sciences Follow this and additional works at: https://scholarworks.wm.edu/etd Part of the History of Art, Architecture, and Archaeology Commons, and the United States History Commons Recommended Citation Desany, Jessica Rose, "Enshrining the Past: Archaeology, History and Memory at Fort St Anne, Isle La Motte, Vermont" (2006). Dissertations, Theses, and Masters Projects. Paper 1539626510. https://dx.doi.org/doi:10.21220/s2-5rdk-4r65 This Thesis is brought to you for free and open access by the Theses, Dissertations, & Master Projects at W&M ScholarWorks. It has been accepted for inclusion in Dissertations, Theses, and Masters Projects by an authorized administrator of W&M ScholarWorks. For more information, please contact [email protected]. ENSHRINING THE PAST ARCHAEOLOGY, HISTORY AND MEMORY AT FORT ST. ANNE, ISLE LA MOTTE, VERMONT A Thesis Presented to the Faculty of the Department of Anthropology The College of William and Mary in Virginia In Partial Fulfillment Of the Requirements for the Degree of Master of Arts By Jessica Rose Desany 2006 APPROVAL SHEET This thesis is submitted in partial fulfillment of the requirements for the degree of Master of Arts Jessica Rose Desany Approved by the Committee, May 2006 -fcmmeiLr 8<(iqd — Dr. Kathleen Bragdon, Chair Dr. Martin Gallivan For my Parents, Without whose love and support I could never have accomplished this And to Dr. Marjory Power.
    [Show full text]
  • Champlain Islands Resource Guide
    LCIEDC P.O. Box 213 North Hero, VT 05474 champlainislands.com Aerial: Annie Gardiner/Coldwell Banker Islands Realty Sailboat: Dave Morrissette/The Anchorage Design: SilverCloud Designs ISLANDS Champlain 2020–2021 RESOURCEGUIDE OPEN FOR BUSINESS! OPEN Play. Work. Live. Call today for availability! 802-372-6933 CHAMPLAIN ISLANDS RESOURCE GUIDE A Arts, Attractions and Recreation V5 Fisk Farm lake. What’s better than taking in the spectacular 3849 West Shore Rd, Isle La Motte, VT 05463 Lake Champlain views, gliding past lush and color- Certified USCG Captain David Morrissette Linda Fitch (802) 928-3364 ful shoreline, enjoying the Green Mountain vistas, all [email protected] www.fiskfarm.com while taking part in a growing new sport rooted in www.anchoragesouthhero.com Two Historic Cottages on the Lake the Hawaiian spirit of Aloha. Paddleboards delivered Family Cottages and Fun on Lake Champlain to your door! Or come see us at our beachfront loca- See: Lodging, Vacation Rentals for description. tion at Oakledge Park in Burlington, 1 Flynn Avenue, A3 Island Arts for tours, instruction and hourly rentals. 1127 US Route 2 (Event Ctr. Homer Knight Barn) Smugglers’ Notch Resort 3549 US Route 2 (Winter), North Hero, VT 05474 4323 Vermont Route 108 South Katya Wilcox (802) 372-8889 (802) 233-1725 Jeffersonville, VT 05464 ROBERT A. CANECO [email protected] www.islandarts.org Rob Aiken (802) 644-8851 (877) 929-3146 Island Arts Council, Academy, Gallery [email protected] www.smuggs.com/vto ARCHITECT America’s Family Resort. Local Motion Family Fun Guaranteed! One Steele Street #103, Burlington, VT 05401 A5 St.
    [Show full text]
  • The Vermont Stone Trail 2016
    The Vermont Stone Trail A Visitor’s Guide to Granite, Marble and Slate in the Green Mountain State Lake Willoughby Photo courtesy Annalie Babson Table of Contents The 2 The Story of Stone in Vermont Vermont 6 Southern Region Stone Trail 14 Central Region 32 Northern Region A Visitor’s Guide to Granite, Marble and Slate in the Green Mountain State Using this Guide The information in this guide is arranged into southern, central and northern regions of Vermont. Each section begins with a map Serendipity and the dynamic nature of the earth’s showing the number and location of landmarks and points of interest crust gave Vermont rare and excellent deposits of described in the guide pages. The guide pages include a landmark granite, marble and slate. With hard work, description and graphic icons creativity and the efforts of many, each of these indicating the type of stone, features and activities for each resources has been developed into a highly location. successful industry that continues to offer products Landmark Legend that are sought after throughout the world. Type of stone The Vermont Stone Trail is a guide to geological Marble regions of Vermont where granite, marble and slate Slate Granite were quarried, manufactured and utilized. Combination Vermont’s diverse geologic resources have been Other Dimensional used to create some of the finest buildings, Stone provocative memorials and stunning works of art Landmark features and activities found around the world. The Vermont Stone Trail Geology Above: A historical photo of a Boutwell, Milne & Varnum Company Quarry, Barre. invites visitors and residents alike to find a wealth Quarries/ On the cover: An artist uses the pointing machine method to reproduce a marble sculpture in the early 20th century.
    [Show full text]
  • Directions and Park Information from Burlington, Take Interstate 89 to Exit 17
    Goodsell Ridge Fossil Preserve Isle la Motte, Vermont Goodsell Ridge Fossil Preserve protects the most complete fossil record of the world’s oldest reef, an irreplaceable and world-renowned scientific resource. The last of the great glacial ice sheets receded from Vermont 12,000 years ago and dinosaurs roamed the earth 150 million years ago. Go even farther back in history to the Ordovician Period 480 million years ago and you will discover that Isle La Motte was part Hiking trails Wildlife Dogs allowed of a reef in a tropical marine environment in a shallow sea! Dry land had not yet been colonized. In this ancient Iapetus Ocean, organisms with hard calcium exoskeletons, including the first known species of coral, started to build the world’s oldest reef. In addition, giant sponge-shaped creatures, stromatoporoids, became an integral part of this complex reef community. Some of the other inhabitants of this incredibly diverse ecosystem include the trilobite, the ancestor of the modern horseshoe crab and the cephalopod, an Portalet (summer) Easy earlier form of the squid with a shell in the shape of a windsock, which roamed in and around the reef. Conservation History: The Lake Champlain Land Trust, with the help of our partners at the Isle La Motte Preservation Trust, permanently conserved Goodsell Ridge Fossil Preserve in 2005. We had previously worked with our partners to save the Fisk Quarry Fossil Site, also on Isle La Motte, in 1999. Trails are open dawn to dusk. Walking, hiking, snow shoeing, and cross-country skiing are encouraged, however, due to the delicate nature of Goodsell Ridge, no motorized vehicles or bicycles are allowed.
    [Show full text]
  • Directions and Park Information from Burlington, Take Interstate 89 to Exit 17
    Fisk Quarry Fossil Preserve Isle la Motte, Vermont The sound of drilling broke the evening quiet near Linda Fitch’s home in Isle La Motte in August of 1995. Linda discovered that one of the oldest fossil reefs on Earth was in danger of being further quarried. To conserve the rock beds, Fitch created an alliance between the Preservation Trust Easy Wildlife No facilities of Vermont (PTV), now the Isle La Motte Preservation Trust (ILMPT), and the Lake Champlain Land Trust. “Everyone played a wonderful role,” Linda says of the effort to preserve the 24-acre piece of the 480 million year-old Chazy Reef Formation. With Paul Bruhn’s leadership from the PTV, the quarry became a fossil preserve in 1999. In spite of the quarried portions of the preserve, the intact fossils throughout the preserve allow geologists to study certain fossils known to be older than the fossils at our companion fossil preserve, Goodsell Ridge, further north. Directions and Park Information From Burlington, take Interstate 89 to Exit 17. Take Route 2W through the islands. Just after crossing the bridge between North Hero and Alburgh, look for Route 129. Continue on 129 over the bridge to Isle La Motte. Route 129 becomes the Main Road-- Follow this road south until you see Quarry Road and the Historical Society on your left. Continue on this road until you see the Fisk Quarry sign and a small gravel parking lot on your right. Trails lead you to an information kiosk. This Fossil Preserve is managed by the ILMPT; the Lake Champlain Land Trust retains a conservation easement to ensure it will remain protected forever.
    [Show full text]
  • (Lower Middle Ordovician) "Reefs" Or "Mounds"
    Trip F 93 THE PALEOECOLOGY OF CHAZYAN (LOWER MIDDLE ORDOVICIAN) "REEFS" OR "MOUNDS" by Robert M. Finks Queens College Flushing, N. Y. and Donald F. Toomey Pan American Petroleum Corporation Tulsa, Oklahoma REEFS AS B/OLOG IC COMMUN ITiES Geologists have commonly concerned themselves with reefs as a problem in the building and maintenance of a framework in the face of the destructive effects of wave-energy. From the point of view of the reef organisms the paramount aspect of the reef environment may well be the opportunities it provides for interactions between organisms. To use an analogy wh ich may be appropriate on mony levels, the former approach is like viewing a city as a problem in architecture, while the latter is like viewing a city in terms of social interactions. What draws people to cities is that they provide a maximum availability of functional relationships, or to use the equivalent biological term, of ecologic niches. The high population density of a city, as well as of a reef, is both the necessary condition for such functional diversity as well as an ultimate result of it. A measure of the uniqueness of a reef as a focus of energy trans­ formation is shown by the fact that its long-term average rate of primary productivity by photosynthesis is the highest of any living aquatic ecosystem, except for short-term peaks, largel y in polluted fresh -waters! Table: Average primary productivity of aquatic ecosystems calculated from -- gas exchange (Odum, 1959) 2 Ecosystem Production (g dry organic matter/m /day) Inferti Ie open ocean, Pac ific 0.2 Shallow, inshore waters, Long Island Sound 3.2 Estuary, Laguna Madre, Texas 4.4 Fresh-water lakes (various) 0.3-9.0 Silver Springs, Florida 17.5 Coral reefs, average 3 Pacific reefs 18.2 To paleontologists fossil reefs have a two-fold importance.
    [Show full text]
  • Untitled Minutes of the March 2, 1864 Meeting
    LIBRARY OF THE UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN 550.5 FI cry~* v. CM 18 < - _ UNIVERSITY ( ILLINOIS LIBRARY AT URBANA-CHAMPAIGN GEOLOGY <M s FIELDIANA: GEOLOGY A continuation of the GEOLOGICAL SERIES of FIELD MUSEUM OF NATURAL HISTORY VOLUME 18 FIELD MUSEUM OF NATURAL HISTORY CHICAGO, U.S.A. xV TABLE OF CONTENTS PAGE 1 . Annotated Bibliography of Lower Paleozoic Sponges of North America. By J. Keith Rigby and Matthew H. Nitecki 1 2. Mammalian masticatory apparatus. By William D. Turnbull 147 3. New and little known genera and species of vertebrates from the Lower Permian of Oklahoma. By Everett C. Olsen 357 ' t ANNOTATED BIBLIOGRAPHY OF LOWER PALEOZOIC SPONGES OF NORTH AMERICA J. KEITH RIGBY AND MATTHEW H. NITECKI Tfie Library of tht MAV 1 5 1Q/2 at "*>*' FIELDIANA: GEOLOGY VOLUME 18, NUMBER 1 Published by FIELD MUSEUM OF NATURAL HISTORY OCTOBER 25, 1968 GEOLOGY LIBRARY ANNOTATED BIBLIOGRAPHY OF LOWER PALEOZOIC SPONGES OF NORTH AMERICA J. KEITH RIGBY Brigham Young University AND MATTHEW H. NITECKI Assistant Curator of Fossil Invertebrates Field Museum of Natural History FIELDIANA: GEOLOGY VOLUME 18, NUMBER 1 Published by FIELD MUSEUM OF NATURAL HISTORY OCTOBER 25, 1968 Library of Congress Catalog Card Number: 68-56088 PRINTED IN THE UNITED STATES OF AMERICA BY FIELD MUSEUM PRESS INTRODUCTION This paper consists of an annotated bibliography of North Ameri- can literature on sponges of Cambrian, Ordovician and Silurian ages. It also includes works dealing with organisms which may not be sponges but that have been placed in the phylum Porifera by various authors. Although we do not consider receptaculitids to be related organisms, we have included references dealing with these forms, because they have been traditionally considered as sponges, or as related sponge-like forms.
    [Show full text]
  • The Geology of the Limestone of Isle La Motte and South Hero Island, Vermont
    THE GEOLOGY OF THE LIMESTONE OF ISLE LA MOTTE AND SOUTH HERO ISLAND, VERMONT By ROBERT B. ERWIN VERMONT GEOLOGICAL SURVEY CHARLES G. DOLL, State Geologist Published by VERMONT DEVELOPMENT COMMISSION MONTPELIER, VERMONT BULLETIN NO. 9 1957 OUTCROPPING AUTOCHTHONOUS-GMERALIZED AND DIAGRAMATIC-•. SEQUENCE H ------a • ------- --- -- ----- -750 valco6rC .- -- • .________I-------- ------------------- --------- ------ -125 .-J-- -a TABLE OF CONTENTS PAGE ABSTRACT 7 INTRODUCTION ...................... 8 General Statement .................... 8 Acknowledgments . . . . . . . . . . . . . . . . . . . 8 ISLE LA MOTTE ...................... 9 Location and Topographic Setting ............. 9 Pleistocene Deposits ................... 9 Geologic Setting ..................... 10 Stratigraphy ....................... 10 Providence Island Dolomite ............... 11 Day Point Limestone .................. 11 The Lingula Zone .................. 13 The Minwila Zone .................. 16 The Plectorthis Zone . . . . . . . . . . . . . . . . 18 The Pelmatozoan Zone ................ 20 Crown Point Limestone ................. 21 The "Basal Beds" .................. 22 The Maci urites Beds ................. 22 The Fisk-Goodsell Beds ................ 24 The "Upper Limestone" Beds ............. 24 Valcour Limestone ................... 25 Lowville and Isle La Motte Limestones .......... 27 Glens Falls Formation.................. 30 Larrabee Limestone ................. 30 Shoreham Limestone ................. 31 Cumberland Head Formation
    [Show full text]
  • Guide to the Geology of the Champlain Valley
    Sorel Geology of the Champlain Valley Québec Richelieu River The geologic history of the Champlain Valley National Heritage Partnership (CNHP) region is varied and dynamic. Over the last 500 million years, it has been covered with a warm shallow sea, a mile-high 1 Alburgh sheet of ice, a large glacial lake, and an arm of the Atlantic Ocean. 2 Isle La Motte More than 500 million years ago the Iapetus Ocean, a 3 Lyon Mountain Lake Champlain warm, shallow sea, existed in what is now the Champlain and Upper Hudson basins. Over 400 million years ago, the Ausable Chasm 5 4 Burlington Iapetus Ocean closed and the sedimentary rocks of the 6 shoreline and continental shelf were folded and faulted to form the Green Mountains. During this process of mountain New York building, the older sedimentary rocks were altered by heat and pressure into metamorphic rocks such as marble and slate. Port Henry 7 Vermont In addition, portions of the earth’s crust broke and moved as large fault blocks, causing younger rocks to be pushed up and Crown Point 8 over metamorphosed continental shelf rocks beneath. This is how the Taconic Mountains were formed. Unlike the Green and Taconic Mountains, the Adirondacks Lake George 9 Proctor are a unique dome formation, which started rising about 5 million years ago. As the dome rose, successively older rock Lake George layers were eroded away, exposing today’s surface rocks that Granville 10 formed deep within the crust more than one billion years ago. The earth began to warmChamplain some 12,500Canal years Approximately 3 million years ago the Great Ice Age began, ago and the ice retreated, forming Lake with glaciers advancing and retreating across North America.
    [Show full text]
  • Chazy Reef Formation/Récif De Chazy
    Chazy Reef Formation/Récif de Chazy Chambly Canal Isle La Motte is home to the most The Fisk Quarry Preserve. The white patterns in the walls are L’île La Motte est le plus grand site fossils of Stromatoporoids—creatures, now extinct, that built complete fossil record of the Chazy this portion of the reef. Photo courtesy of the Isle La Motte fossile de l’histoire de la formation Reef Formation, the world's oldest Preservation Trust. All other photos courtesy of the Isle La du Chazy Reef, le plus ancien récif Motte Historical Society. Québec reef in which corals first appear. It à abriter des coraux au monde. Il was formed during the Ordovician La réserve de la Carrière Fisk. Les motifs blancs dans les murs a été formé pendant la période Period some 450-480 million years sont des fossiles de Stromatoporoids, créatures maintenant dis- Ordovicien, il y a environ 450-480 parues, qui ont contribué à la construction de cette partie du Canada ago in a shallow tropical sea strad- récif. Photo courtoisie de la fiducie de conservation de l’île La millions, dans une mer tropicale dling the equator. Motte. Toute autres photos sont une courtoisie de la Société chevauchant l'équateur. United States d’histoire de l’île La Motte. You Are Here Quarrying of the limestone reef L'exploitation de la castine (pierre à Isle La Motte during the 19th century was a chaux) fut une activité économique major Island industry. Five large majeur de l’île pendant le 19ième quarries, including the Fisk siècle.
    [Show full text]