Item talk:Q269030

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   "name": "Cascade Mountain Range in Oregon",
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   "inLanguage": "en",
   "datePublished": "2016",
   "dateModified": "2016-06-21",
   "abstract": "The Cascade mountain system extends from northern California to central British Columbia. In Oregon, it comprises the Cascade Range, which is 260 miles long and, at greatest breadth, 90 miles wide\u00a0(fig. 1). Oregon\u2019s Cascade Range covers roughly 17,000 square miles, or about 17 percent of the state, an area larger than each of the smallest nine of the fifty United States. The range is bounded on the east by U.S. Highways 97 and 197. On the west it reaches nearly to Interstate 5,\u00a0forming the eastern margin of the Willamette Valley and, farther south, abutting the Coast Ranges.\u00a0\nAlong its Oregon segment, the Cascade Range is almost entirely volcanic in origin. The volcanoes and their eroded remnants are the visible magmatic expression of the Cascadia subduction zone, where the offshore Juan de Fuca tectonic plate is subducted beneath North America.\u00a0Subduction occurs as two lithospheric plates collide, and an underthrusted oceanic plate is commonly dragged into the mantle by the pull of gravity, carrying\u00a0ocean-bottom rock and sediment down to where heat and pressure expel water. As this water rises, it lowers the melting temperature in the overlying hot mantle rocks, thereby promoting melting. The molten rock supplies the volcanic arcs with heat and magma.\u00a0Cascade Range volcanoes are part of the Ring of Fire, a popular term for the numerous volcanic arcs that encircle the Pacific Ocean.",
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   "publisher": {
     "@type": "Organization",
     "name": "Oregon Historical Society"
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   "author": [
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       "@type": "Person",
       "name": "Sherrod, David R. dsherrod@usgs.gov",
       "givenName": "David R.",
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       "email": "dsherrod@usgs.gov",
       "identifier": {
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           "@type": "Organization",
           "name": "Volcano Science Center",
           "url": "https://www.usgs.gov/centers/volcano-science-center"
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   "funder": [
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       "@type": "Organization",
       "name": "Volcano Science Center",
       "url": "https://www.usgs.gov/centers/volcano-science-center"
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       "name": "United States",
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       "name": "Oregon"
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