Physiographic Divisions of Alaska
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Ecological Subsections of Glacier Bay National Park & Preserve, Sitka National Historic Park, Klondike Gold Rush National Historic Park
ECOLOGICAL SUBSECTIONS OF GLACIER BAY NATIONAL PARK & PRESERVE, SITKA NATIONAL HISTORIC PARK, KLONDIKE GOLD RUSH NATIONAL HISTORIC PARK Mapping and Delineation by: Gregory Nowacki, Michael Shephard, William Pawuk, Gary Fisher, James Baichtal, David Brew, Evert Kissinger and Terry Brock, USDA Forest Service Photographs by: USDA Forest Service Alaska Region Inventory and Monitoring Program 2525 Gambell Anchorage, Alaska 99503 Alaska Region Inventory & Monitoring Program 2525 Gambell Street, Anchorage, Alaska 99503 (907) 257-2488 Fax (907) 264-5428 Ecological Subsections of Glacier Bay National Park & Preserve Klondike Gold Rush National Historic Park Sitka National Historic Park 2001 Excerpts from Ecological Subsections of Southeast Alaska and Neighboring Areas of Canada Gregory Nowacki, Michael Shephard, William Pawuk, Gary Fisher, James Baichtal, David Brew, Evert Kissinger and Terry Brock USDA Forest Service, Alaska Region Technical Publication R10-TP-75 October 2001 Table of Contents TABLE OF CONTENTS ..............................................................................1 ECOLOGICAL SUBSECTION DELINEATION CRITERIA AND MAPPING..2 HIERARCHICAL ARRANGEMENT AND FINAL CORRECTION..................4 GLACIER BAY NATIONAL PARK AND PRESERVE ...................................1 Icefields...................................................................................................1 SAINT ELIAS—FAIRWEATHER .....................................................................1 Recently Deglaciated Areas .................................................................3 -
Idaho Profile Idaho Facts
Idaho Profile Idaho Facts Name: Originally suggested for Colorado, the name “Idaho” was used for a steamship which traveled the Columbia River. With the discovery of gold on the Clearwater River in 1860, the diggings began to be called the Idaho mines. “Idaho” is a coined or invented word, and is not a derivation of an Indian phrase “E Dah Hoe (How)” supposedly meaning “gem of the mountains.” Nickname: The “Gem State” Motto: “Esto Perpetua” (Let it be perpetual) Discovered By Europeans: 1805, the last of the 50 states to be sighted Organized as Territory: March 4, 1863, act signed by President Lincoln Entered Union: July 3, 1890, 43rd state to join the Union Official State Language: English Geography Total Area: 83,569 square miles – 14th in area size (read more) Water Area: 926 square miles Highest Elevation: 12,662 feet above sea level at the summit of Mt. Borah, Custer County in the Lost River Range Lowest Elevation: 770 feet above sea level at the Snake River at Lewiston Length: 164/479 miles at shortest/longest point Width: Geographic 45/305 miles at narrowest/widest point Center: Number of settlement of Custer on the Yankee Fork River, Custer County Lakes: Navigable more than 2,000 Rivers: Largest Snake, Coeur d’Alene, St. Joe, St. Maries and Kootenai Lake: Lake Pend Oreille, 180 square miles Temperature Extremes: highest, 118° at Orofino July 28, 1934; lowest, -60° at Island Park Dam, January 18, 1943 2010 Population: 1,567,582 (US Census Bureau) Official State Holidays New Year’s Day January 1 Martin Luther King, Jr.-Human Rights Day Third Monday in January Presidents Day Third Monday in February Memorial Day Last Monday in May Independence Day July 4 Labor Day First Monday in September Columbus Day Second Monday in October Veterans Day November 11 Thanksgiving Day Fourth Thursday in November Christmas December 25 Every day appointed by the President of the United States, or by the governor of this state, for a public fast, thanksgiving, or holiday. -
Geologic Maps of the Eastern Alaska Range, Alaska, (44 Quadrangles, 1:63360 Scale)
Report of Investigations 2015-6 GEOLOGIC MAPS OF THE EASTERN ALASKA RANGE, ALASKA, (44 quadrangles, 1:63,360 scale) descriptions and interpretations of map units by Warren J. Nokleberg, John N. Aleinikoff, Gerard C. Bond, Oscar J. Ferrians, Jr., Paige L. Herzon, Ian M. Lange, Ronny T. Miyaoka, Donald H. Richter, Carl E. Schwab, Steven R. Silva, Thomas E. Smith, and Richard E. Zehner Southeastern Tanana Basin Southern Yukon–Tanana Upland and Terrane Delta River Granite Jarvis Mountain Aurora Peak Creek Terrane Hines Creek Fault Black Rapids Glacier Jarvis Creek Glacier Subterrane - Southern Yukon–Tanana Terrane Windy Terrane Denali Denali Fault Fault East Susitna Canwell Batholith Glacier Maclaren Glacier McCallum Creek- Metamorhic Belt Meteor Peak Slate Creek Thrust Broxson Gulch Fault Thrust Rainbow Mountain Slana River Subterrane, Wrangellia Terrane Phelan Delta Creek River Highway Slana River Subterrane, Wrangellia Terrane Published by STATE OF ALASKA DEPARTMENT OF NATURAL RESOURCES DIVISION OF GEOLOGICAL & GEOPHYSICAL SURVEYS 2015 GEOLOGIC MAPS OF THE EASTERN ALASKA RANGE, ALASKA, (44 quadrangles, 1:63,360 scale) descriptions and interpretations of map units Warren J. Nokleberg, John N. Aleinikoff, Gerard C. Bond, Oscar J. Ferrians, Jr., Paige L. Herzon, Ian M. Lange, Ronny T. Miyaoka, Donald H. Richter, Carl E. Schwab, Steven R. Silva, Thomas E. Smith, and Richard E. Zehner COVER: View toward the north across the eastern Alaska Range and into the southern Yukon–Tanana Upland highlighting geologic, structural, and geomorphic features. View is across the central Mount Hayes Quadrangle and is centered on the Delta River, Richardson Highway, and Trans-Alaska Pipeline System (TAPS). Major geologic features, from south to north, are: (1) the Slana River Subterrane, Wrangellia Terrane; (2) the Maclaren Terrane containing the Maclaren Glacier Metamorphic Belt to the south and the East Susitna Batholith to the north; (3) the Windy Terrane; (4) the Aurora Peak Terrane; and (5) the Jarvis Creek Glacier Subterrane of the Yukon–Tanana Terrane. -
University Micrdfilms International 300 N
INFORMATION TO USERS This was produced from a copy of a document sent to us for microfilming. While the most advanced technological means to photograph and reproduce this document have been used, the quality is heavily dependent upon the quality of the material submitted. The following explanation of techniques is provided to help you understand markings or notations which may appear on this reproduction. 1. The sign or “target” for pages apparently lacking from the document photographed is "Missing Page(s)”. If it was possible to obtain the missing page(s) or section, they are spliced into the film along with adjacent pages. This may have necessitated cutting through an image and duplicating adjacent pages to assure you of complete continuity. 2. When an image on the film is obliterated with a round black mark it is an indication that the film inspector noticed either blurred copy because of movement during exposure, or duplicate copy. Unless we meant to delete copyrighted materials that should not have been filmed, you will find a good image of the page in the adjacent frame. If copyrighted materials were deleted you will find a target note listing the pages in the adjacent frame. 3. When a map, drawing or chart, etc., is part of the material being photo graphed the photographer has followed a definite method in “sectioning” the material. It is customary to begin filming at the upper left hand corner of a large sheet and to continue from left to right in equal sections with small overlaps. If necessary, sectioning is continued again—beginning below the first row and continuing on until complete. -
Landforms and Resources
Name _____________________________ Class _________________ Date __________________ Physical Geography of the United States and Canada Section 1 Landforms and Resources Terms and Names Appalachian Mountains major mountain chain in the eastern United States and Canada Great Plains largely treeless area in the interior lowlands Canadian Shield rocky, flat area that surrounds Hudson Bay Rocky Mountains mountain chain in the western United States and Canada Continental Divide line of the highest points in the Rockies that marks the separation between rivers flowing to the east and to the west Great Lakes five large lakes found in the central United States and Canada Mackenzie River Canada’s longest river Before You Read In the last chapter, you read about human geography–the way humans in general relate to their environment. In this section, you will learn about the physical features and resources of the United States and Canada. As You Read Use a graphic organizer to take notes about the landforms and resources of the United States and Canada. LANDSCAPE INFLUENCED The United States and Canada are rich DEVELOPMENT (Page 117) in natural resources. They have much How vast are these countries? fertile soil and water and many forests and The United States and Canada occupy the minerals. This geographic richness has central and northern four-fifths of the attracted immigrants from around the continent of North America. Culturally, the world for centuries. region is known as Anglo America. This is 1. What binds Canada and the United because both countries were colonies of States together? Great Britain at one time and because most of _______________________________ the people speak English. -
LAYSAN ALBATROSS Phoebastria Immutabilis
Alaska Seabird Information Series LAYSAN ALBATROSS Phoebastria immutabilis Conservation Status ALASKA: High N. AMERICAN: High Concern GLOBAL: Vulnerable Breed Eggs Incubation Fledge Nest Feeding Behavior Diet Nov-July 1 ~ 65 d 165 d ground scrape surface dip fish, squid, fish eggs and waste Life History and Distribution Laysan Albatrosses (Phoebastria immutabilis) breed primarily in the Hawaiian Islands, but they inhabit Alaskan waters during the summer months to feed. They are the 6 most abundant of the three albatross species that visit 200 en Alaska. l The albatross has been described as the “true nomad ff Pok e of the oceans.” Once fledged, it remains at sea for three to J ht ig five years before returning to the island where it was born. r When birds are eight or nine years old they begin to breed. y The breeding season is November to July and the rest of Cop the year, the birds remain at sea. Strong, effortless flight is commonly seen in the southern Bering Sea, Aleutian the key to being able to spend so much time in the air. The Islands, and the northwestern Gulf of Alaska. albatross takes advantage of air currents just above the Nonbreeders may remain in Alaska throughout the year ocean's waves to soar in perpetual fluid motion. It may not and breeding birds are known to travel from Hawaii to flap its wings for hours, or even for days. The aerial Alaska in search of food for their young. Albatrosses master never touches land outside the breeding season, but have the ability to concentrate the food they catch and it does rest on the water to feed and sleep. -
NSF 03-021, Arctic Research in the United States
This document has been archived. Home is Where the Habitat is An Ecosystem Foundation for Wildlife Distribution and Behavior This article was prepared The lands and near-shore waters of Alaska remaining from recent geomorphic activities such by Page Spencer, stretch from 48° to 68° north latitude and from 130° as glaciers, floods, and volcanic eruptions.* National Park Service, west to 175° east longitude. The immense size of Ecosystems in Alaska are spread out along Anchorage, Alaska; Alaska is frequently portrayed through its super- three major bioclimatic gradients, represented by Gregory Nowacki, USDA Forest Service; Michael imposition on the continental U.S., stretching from the factors of climate (temperature and precipita- Fleming, U.S. Geological Georgia to California and from Minnesota to tion), vegetation (forested to non-forested), and Survey; Terry Brock, Texas. Within Alaska’s broad geographic extent disturbance regime. When the 32 ecoregions are USDA Forest Service there are widely diverse ecosystems, including arrayed along these gradients, eight large group- (retired); and Torre Arctic deserts, rainforests, boreal forests, alpine ings, or ecological divisions, emerge. In this paper Jorgenson, ABR, Inc. tundra, and impenetrable shrub thickets. This land we describe the eight ecological divisions, with is shaped by storms and waves driven across 8000 details from their component ecoregions and rep- miles of the Pacific Ocean, by huge river systems, resentative photos. by wildfire and permafrost, by volcanoes in the Ecosystem structures and environmental Ring of Fire where the Pacific plate dives beneath processes largely dictate the distribution and the North American plate, by frequent earth- behavior of wildlife species. -
Alaska Range
Alaska Range Introduction The heavily glacierized Alaska Range consists of a number of adjacent and discrete mountain ranges that extend in an arc more than 750 km long (figs. 1, 381). From east to west, named ranges include the Nutzotin, Mentas- ta, Amphitheater, Clearwater, Tokosha, Kichatna, Teocalli, Tordrillo, Terra Cotta, and Revelation Mountains. This arcuate mountain massif spans the area from the White River, just east of the Canadian Border, to Merrill Pass on the western side of Cook Inlet southwest of Anchorage. Many of the indi- Figure 381.—Index map of vidual ranges support glaciers. The total glacier area of the Alaska Range is the Alaska Range showing 2 approximately 13,900 km (Post and Meier, 1980, p. 45). Its several thousand the glacierized areas. Index glaciers range in size from tiny unnamed cirque glaciers with areas of less map modified from Field than 1 km2 to very large valley glaciers with lengths up to 76 km (Denton (1975a). Figure 382.—Enlargement of NOAA Advanced Very High Resolution Radiometer (AVHRR) image mosaic of the Alaska Range in summer 1995. National Oceanic and Atmospheric Administration image mosaic from Mike Fleming, Alaska Science Center, U.S. Geological Survey, Anchorage, Alaska. The numbers 1–5 indicate the seg- ments of the Alaska Range discussed in the text. K406 SATELLITE IMAGE ATLAS OF GLACIERS OF THE WORLD and Field, 1975a, p. 575) and areas of greater than 500 km2. Alaska Range glaciers extend in elevation from above 6,000 m, near the summit of Mount McKinley, to slightly more than 100 m above sea level at Capps and Triumvi- rate Glaciers in the southwestern part of the range. -
Find Alaska Info!
Find Alaska Info! Dear Student: Thank you for writing to request information about Alaska. This fl yer contains some interesting information about our great state. Alaska became the 49th state in 1959, right before Hawaii became the 50th state that same year. Many of Alaska’s 722,200 people live in modern cities, and many live in small remote villages where their families have lived for thousands of years. The population of Anchorage, Alaska’s largest city, is 296,000. Juneau (population 32,300) is the State Capital.. We also have a website where you can learn more about Alaska’s history, cultures, geography, animals, and more: http://alaska.gov/kids/ Here are other helpful websites: • For information about visiting Alaska, visit www.travelalaska.com • You can also visit the Alaska State Library on-line at www.lam.alaska.gov • Looking for wildlife info? Go to http://www.wildlife.alaska.gov • Want to know more about Alaska’s Forest and Park Lands? visit www.alaskacenters.gov Did you know? If you place Alaska, with all of its islands, on top of the “continental” United States, it spans from the Great Lakes to Texas, and from Florida to California. At 591,000 square miles, Alaska is larger than Texas, California, and Montana combined. The coastline of Alaska is longer than the coastline of the continental United States. Of Alaska’s 3 million lakes, the largest (Lake Iliamna) is the size of Connecticut. Alaska’s mainland is only 51 miles away from Russia. Alaska has 17 of the 20 highest mountains in North America (Denali is the highest at 20,320 feet). -
Mountain Goat Population Ecology and Habitat Use Along the Juneau Access Road Corridor, Alaska
Final Wildlife Research Report, ADFG/DWC/WRR-2012-02 Mountain goat population ecology and habitat use along the Juneau Access road corridor, Alaska Kevin S. White, David P. Gregovich, Grey W. Pendleton, Neil L. Barten, Ryan Scott, Anthony Crupi and Doug N. Larsen ©2005 ADFG/photo by Kevin White May 2012 Alaska Department of Fish and Game Division of Wildlife Conservation Final Wildlife Research Reports are fi nal reports detailing the objectives, methods, data collected and fi ndings of a particular research project undertaken by ADF&G Division of Wildlife Conservation staff and partners. They are written to provide broad access to information obtained through the project. While these are fi nal reports, further data analysis may result in future adjustments to the conclusions. Please contact the author(s) prior to citing material in these reports. These reports are professionally reviewed by research staff in the Division of Wildlife Conservation. They are provided a number for internal tracking purposes. This Wildlife Research Report was reviewed and approved for publication by Rod Flynn, Reseach Coodinator for Region 1, for the Division of Wildlife Conservation. Wildlife Research Reports are available from the Alaska Department of Fish and Game’s Division of Wildlife Conservation, PO Box 115526, Juneau, Alaska 99811-5526; phone (907) 465-4190; email: dfg.dwc.publications@ alaska.gov; website: www.adfg.alaska.gov. The report may also be accessed through most libraries, via interlibrary loan from the Alaska State Library or the Alaska Resources Library and Information Service (www.arlis.org). This document should be cited as: White, K. S., D. -
Wrangellia Flood Basalts in Alaska, Yukon, and British Columbia: Exploring the Growth and Magmatic History of a Late Triassic Oceanic Plateau
WRANGELLIA FLOOD BASALTS IN ALASKA, YUKON, AND BRITISH COLUMBIA: EXPLORING THE GROWTH AND MAGMATIC HISTORY OF A LATE TRIASSIC OCEANIC PLATEAU By ANDREW R. GREENE A THESIS SUBMITTED iN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in THE FACULTY OF GRADUATE STUDIES (Geological Sciences) UNIVERSITY OF BRITISH COLUMBIA (Vancouver) August 2008 ©Andrew R. Greene, 2008 ABSTRACT The Wrangellia flood basalts are parts of an oceanic plateau that formed in the eastern Panthalassic Ocean (ca. 230-225 Ma). The volcanic stratigraphy presently extends >2300 km in British Columbia, Yukon, and Alaska. The field relationships, age, and geochemistry have been examined to provide constraints on the construction of oceanic plateaus, duration of volcanism, source of magmas, and the conditions of melting and magmatic evolution for the volcanic stratigraphy. Wrangellia basalts on Vancouver Island (Karmutsen Formation) form an emergent sequence consisting of basal sills, submarine flows (>3 km), pillow breccia and hyaloclastite (<1 1cm), and subaerial flows (>1.5 km). Karmutsen stratigraphy overlies Devonian to Permian volcanic arc (—‘380-355 Ma) and sedimentary sequences and is overlain by Late Triassic limestone. The Karmutsen basalts are predominantly homogeneous tholeiitic basalt (6-8 wt% MgO); however, the submarine part of the stratigraphy, on northern Vancouver Island, contains picritic pillow basalts (9-20 wt% MgO). Both lava groups have overlapping initial and ENd, indicating a common, ocean island basalt (OIB)-type Pacific mantle source similar to the source of basalts from the Ontong Java and Caribbean Plateaus. The major-element chemistry of picrites indicates extensive melting (23 -27%) of anomalously hot mantle (‘—1500°C), which is consistent with an origin from a mantle plume head. -
Chapter 5: Canada
156-164 U2 CH05 S1 TWIP-860976 3/22/04 10:49 PM Page 156 pter ha C 55 CanadaCanada Social Studies To learn more about Canada’s people Chapter Overview Visit The World and Its and places, view The World and Its People Web site at twip.glencoe.com and People Chapter 5 video. click on Chapter 5—Chapter Overviews to preview information about Canada. 156 156-164 U2 CH05 S1 TWIP-860976 3/22/04 10:49 PM Page 157 Compare-Contrast Make this foldable to help you analyze the similarities and differences between the landforms, climate, and cultures of northern and southern Canada. Step 1 Mark the midpoint of the side Step 2 Turn the paper and fold the edge of a sheet of paper. outside edges in to touch at the midpoint. Draw a mark at the midpoint. Step 3 Turn and label your foldable as shown. Northern Canada Southern Canada Reading and Writing As you read the chapter, collect and write information under the appropriate tab that will help you compare and contrast northern and southern Canada. Sharing a Border The boundary line between Canada and the United States forms the longest unprotected border in the world. Citizens of these countries have been allowed to travel freely across the border, which is symbolic of the free trade between these nations. ▼ ▼ Vancouver, British Columbia 156-164 U2 CH05 S1 TWIP-860976 3/22/04 10:50 PM Page 158 Guide to Reading Main Idea 11 A Resource-Rich Canada is a vast country with many landforms and resources.