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  2. Hotspot (geology) - Wikipedia

    en.wikipedia.org/wiki/Hotspot_(geology)

    A chain of volcanoes is created as the lithosphere moves over the source of magma. In geology, hotspots (or hot spots) are volcanic locales thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle. [1] Examples include the Hawaii, Iceland, and Yellowstone hotspots.

  3. Harry Glicken - Wikipedia

    en.wikipedia.org/wiki/Harry_Glicken

    Harry Glicken (March 7, 1958 – June 3, 1991) [1] was an American volcanologist.He researched Mount St. Helens in the United States before and after its 1980 eruption, and was very distraught about the death of volcanologist David A. Johnston, who was Glicken's mentor and supervisor in Spring 1980 at Mount St. Helens.

  4. Geology of Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Pennsylvania

    These rocks lie north of the Furlong fault which is an offshoot of the larger Chalfont fault. [11] Buckingham Mountain rises south of the valley and comprises quartzite. The other ridge is less prominent and is underlain by the conglomerates of the Stockton Formation. Karst is a localized problem in this area.

  5. List of volcanoes in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_volcanoes_in_the...

    Name Elevation Location Last eruption meters feet Coordinates; Malumalu: Last 8,000 years Ta‘u-931: 3054: 30,000 years ago [15]: Ofu-Olosega: 639: 2096: 1866 unnamed submarine cone eruption

  6. Upper Gwynedd Township, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Upper_Gwynedd_Township...

    Upper Gwynedd Township (/ ˈ ɡ w ɪ n ɛ d /) [3] is a township in Montgomery County, Pennsylvania, United States.The population was 15,552 at the time of the 2010 census. North Wales Borough is surrounded by Upper Gwynedd Township on all sides, and many homes and businesses with North Wales addresses are actually in Upper Gwynedd.

  7. North Wales, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/North_Wales,_Pennsylvania

    North Wales Elementary School is part of the North Penn School District. The building was North Wales High School from 1927 until North Penn High School was built in the 1950s; it then became an elementary school. The original elementary school from the 1900s was located at the current site of Borough Hall. [citation needed]

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