Wegeners ideas were proved even further, increasing our knowledge of tectonic events. Sea floor spreading shows that rock is being both created and destroyed. In the 1950s and 1960s, ages of the ocean floor were measured. The surveys suggested that very young rocks, ageing less than 1 million years old, are found near ridges and older rocks, ageing over 200 million years, are found near the continents. Evidence of sea floor spreading can be found in the Atlantic, where it is believed that the North American and Eurasian plates are moving apart at a constructive plate margin.
Mt. Saint Helens is, located in southern located in southwestern Washington about 50 miles northeast of Portland, Oregon, is one of the several lofty volcano’s that dominate the Cascade Range of the Pacific Northwest; the range extends from Mt. Garibaldi in British Columbia, Canada, to Lassen Peak in northern California. Geologists call Mt. Saint Helen a composite volcano (or stratovolcano), a term for steep sided, often symmetrical cones constructed of alternating layers of lava flows, ash and other volcanic debris.
The size of the Grampians national park is 167,000 hectares. 4. Today's Grampians mountain range lay under shallow seas millions of years ago. Over the centuries, heat and pressure caused the solidification of the sandy bottom into great slabs of sandstone which, disturbed by tectonic forces, were forced upwards to become the jagged peaks we see today in Grampians National Park. 5.
Garrett Monk February 12 2011 1) There were many different geographic regions where the Mayan people lived. They lived in dense tropical forests; rain forests, river valleys, natural sinkholes, and caverns. Mostly there were two general zones. First and less known is the Highlands, second was the lowlands which was made up of two parts. The west which lays a plain made fertile by the erosion of the volcanic mountains behind it.
There are a lot of sites in the state of Michigan. The Superfund site that is closest to where I live is the Torch Lake site in Houghton County, Upper Michigan. EPA ID#MID980901946. 3. Give some background information on the site and the proposed plans to deal with the contamination.
This Cascade Range of volcanoes extends from Canada's Mount Garibaldi to Lassen Peak in northern California. One of these volcanoes, Mount Mazama, is now the home of Crater Lake. Crater Lake fills a 1,200-meter deep caldera, which is a depression that was formed by the collapse of Mount Mazama during the violent eruption, about 7,700 years ago. What types of rocks are present in the park?
The geology of Yosemite is mainly consisting of rocks and waterfalls. The main rocks are granitic rocks and metamorphic rocks. Ice Ages were the main causes for Yosemite Park or should I say California because the Ice Ages brought glaciers that carved out California. In Yosemite Park, it shows how the glacial have move and creating Yosemite Lake too. It created a lot of homes for the animals that are living in the park and became big attractions for visitors all around the world.
At the time of the eruption, the summit of Mount St. Helens was owned by the Burlington Northern Railroad, but afterward the land passed to the United States Forestry Service. [2] The area was later preserved, as it was, in the Mount St. Helens National Volcanic Monument. [pic] [pic] Mount St. Helens from Monitor Ridge showing the cone of devastation, the huge crater open to the north, and the post-eruption lava dome inside. The small photo on the left was taken from Spirit Lake before the eruption and the small photo on the right was taken after the eruption from approximately the same place. Spirit Lake can also be seen in the larger image, as well as two other Cascade
Mauna Loa, located in the south-central part of the island, is the Earth’s largest volcano (History culture 1). Kilauea lies east of Mauna Loa and is considered to be the Earth’s active volcano; if it also Hawaii’s youngest (Encyclopedia Britannica 2). The Park displays the results of 70 million years of volcanism, migration, and evolution processes that thrust a bare land from the sea and clothed it with complex and unique ecosystems and a distinct human culture. The park encompasses 230,000 acres and ranges from sea level to the summit of the earth's most massive volcano, Mauna Loa at 13,677 feet. Kilauea, the world's most active volcano, offers scientists insights on the birth of the Hawaiian Islands and visitors views of dramatic volcanic landscapes (Hawaii Volcanoes Park)
William Goodrich CA119 September 20 Assignment 5 The Diversity of Land and Geography California, the third largest state, is one of the Pacific states located in the West region of the United States. Like the rest of the United States, California is divided into regions. California’s four major land regions include the Coast Ranges, the Inland Mountains, the Central Valley, and the Basin and Range. The Coast Ranges region extends for 4,500 miles along the Pacific Coast of North America. California’s Coast Ranges region is actually part of a larger chain of mountains that stretch from Alaska to California, and into Mexico.