Recommended Interesting Articles

Maps

South America Map and Satellite Image

Countries in South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela. Where is South America? Political Map of South America: This is a political map of South America which shows the countries of South America along with capital cities, major cities, islands, oceans, seas, and gulfs.
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Landslides

Spectacular Rockfall in Yosemite National Park

A photo sequence of a rockfall and debris avalanche from August 6th, 2006 by Herb Dunn On August 6th, 2006 Herb Dunn was sitting on a rock along the Merced River in Yosemite National Park. He was taking photos and enjoying a great summer day. He had just taken a photo of Elephant Rock. Suddenly he heard a loud POP.
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Roadside Geology of Alaska

By Cathy Connor Learn about the Geology of Alaska with maps, photos and expert descriptions! This 6"x9" paperback has 317 pages that are packed with detailed information about Alaska Geology. See table of contents below. Second Edition. Roadside Geology of Alaska (Second Edition) Table of Contents Preface ix Geologic History of Alaska 1 Understanding the Earth 1 Alaska's Modern Tectonic Environment 4 Terranes of the North country 9 Proterozoic Eon 11 Paleozoic Era 11 Supercontinent Pangea and the Permian Extinction 14 Mesozoic Era 15 Rotation of Arctic Alaska 17 Mesozoic Basins and the Accretion of the Insular Superterrane 18 Cretaceous Inland Sea and Arctic Dinosaurs 19 Cenozoic Era 21 Wandering Resurrection Ridge 21 Dextral Strike-Slip Faults 25 Pleistocene Ice Ages 26 Bering Sea Shelf 31 Holocene and Anthropocene 34 Glacier Movement and Erosion 35 Permafrost and the Warming Climate 40 Natural Resources 46 Alaska's Marine Transportation 48 A Record of Human Culture 50 Southeast Alaska and Coastal British Columbia 51 Terranes of Southeast Alaska 53 Alexander Terrane 54 Taku Terrane 58 Gravina Belt 58 Coast Plutonic Complex and Coast Shear Zone 59 Queen Charlotte - Fairweather Transform Fault 60 Glaciation and Sea Level 61 Guides to Southeast Alaska and Coastal British Columbia 64 North Vancouver Island - Prince Rupert 64 Haida Gwaii (Queen Charlotte Islands) 67 Ketchikan Area 70 Misty Fjords National Monument 73 Prince of Wales Island 77 Baranof Island, Kruzof Islands and Sitka 80 Wrangell and Petersburg Areas 84 Mt.
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Oil and Gas

What is LNG - Liquefied Natural Gas?

An efficient way to transport natural gas where pipelines are not available Article by: Hobart M. King, Ph.D., RPG LNG terminals: Cartoon of LNG liquefaction and regasification terminals. At the liquefaction terminal (left) natural gas is received by pipeline from a well field, liquefied, stored and loaded onto LNG carrier ships.
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Gemstones

Fire Opal

Translucent to transparent opal with a fiery background color of yellow, orange, or red. Author: Hobart M. King, Ph.D., GIA Graduate Gemologist Mexican Fire Opal: Cabochons cut from fire opal found in Mexico. They all have a bright red, orange or yellow background color. Mexican Fire Opal: Some beautiful fire opals from Mexico that have been cut into faceted gems.
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Gemstones

Boulder Opal

A gem that consists of precious opal within or attached to its host rock. Author: Hobart M. King, Ph.D., GIA Graduate Gemologist Boulder Opal: The cabochon shown in the four views above was cut from a rock that contained a very thin seam of precious opal. The cutting was skillfully planned to position the thin seam of precious opal as the face of the stone, while preserving a small amount of host rock to serve as a natural backing.
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