Filters: Tags: Alamagan Island (X) > Extensions: ArcGIS Service Definition (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types ArcGIS REST Map Service (1) ArcGIS Service Definition (1) Downloadable (1) Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts Michael H Zoeller Frank A Trusdell Volcano Science Center U.S. Geological Survey U.S. Geological Survey - ScienceBase More... Categories Data (1) Tag Types Theme (1) Place (1) Harvest Set (1) USGS Scientific Topic Keyword (1) Tag Schemes Common geographic areas (1) Lithclass6.2 (1) None (1) USGS Thesaurus (1) View Results as: JSON ATOM CSV

Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands Alamagan Volcano is a Quaternary stratovolcano along the Mariana Arc, an active subduction zone in the western Pacific Ocean. Although primarily submerged, its peak reaches above sea level, with subaerially-exposed volcanic deposits dating back through the Holocene to the late Pleistocene. These feature data represent such deposits and other geologic features of Alamagan Volcano, describing its interpreted eruptive history. Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alamagan Island, Andesite, Intermediate volcanic rock, Lava flow, NMI_Alamagan, All tags... Northern Islands, Northern Mariana Islands, Pacific, Pacific Islands, Pyroclastic rock, USGS Science Data Catalog (SDC), United States, Volcanic rock, Volcanology, geologic maps, volcanic activity, Fewer tags