|
Glass Mountain, on the Inyo National Forest, is one of the tallest peaks in Mono County, California. The peak lies southeast of the shoreline of Mono Lake and is the highest point on the four mile long sinuous Glass Mountain Ridge.〔''Glass Mountain, California–Nevada,'' 15 Minute Topographic Quadrangle, USGS, 1962〕〔''Casa Diablo Mtn., California,'' 15 Minute Topographic Quadrangle, USGS, 1953〕〔''Cowtrack Mtn, California,'' 15 Minute Topographic Quadrangle, USGS, 1962〕 The Glass Mountain Ridge forms the northeast boundary of Long Valley Caldera. It consists of a sequence of lava domes, flows, and welded pyroclastic flows of rhyolite composition that were erupted between 2.1 and 0.8 million years ago.〔 (【引用サイトリンク】 Northeast rim of Long Valley Caldera and Glass Mountain, California )〕 Obsidian, a naturally occurring volcanic glass, can be found on the mountain.〔 〕 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Glass Mountain (California)」の詳細全文を読む スポンサード リンク
|