Filters: Types: Downloadable (X) > Categories: Data (X) > Types: ArcGIS REST Map Service (X) > partyWithName: Volcano Science Center (X)

Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (8) ArcGIS Map Package (3) ArcGIS REST Service (1) Types ArcGIS Service Definition (8) Map Service (8) ArcGIS Map Package (3) OGC WFS Layer (2) OGC WMS Layer (2) OGC WMS Service (2) Contacts Joel E Robinson U.S. Geological Survey - ScienceBase Natural Hazards U.S. Geological Survey Michael H Zoeller More... Tag Types Theme (8) Place (8) USGS Scientific Topic Keyword (7) Harvest Set (8) Tag Schemes Common geographic areas (6) None (6) USGS Thesaurus (6) Lithologic classification of geologic map units (2) Alexandria Digital Library Feature Type Thesaurus (4) Lithclass6.2 (1) ISO 19115 Topic Category (4) More... View Results as: JSON ATOM CSV

Database for the Geologic Map of the Bonanza Caldera Area, Northeastern San Juan Mountains, Colorado The San Juan Mountains in southwestern Colorado have long been recognized as a site of exceptionally voluminous mid-Tertiary volcanism, including at least 24 major ignimbrite sheets (each 150-5,000 km3) and associated caldera structures active at 33-23 Ma. More recent volcanologic and petrologic studies in the San Juan region have focused mainly on several ignimbrite-caldera systems: the southeastern area (Platoro complex), western calderas (Uncompahgre-Silverton-Lake City), the central cluster (La Garita-Creede calderas). The northeast San Juan region that was far less studied until recently occupies a transition between earlier volcanism in central Colorado and the larger-volume younger ignimbrite-caldera foci... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Bonanza, Colorado, North America, Saguache, USGS Science Data Catalog (SDC), All tags... United States, Volcanology, caldera, explosive eruptions, geology, geology, volcanoes, Fewer tags Database for the Geologic Map of Three Sisters Volcanic Cluster, Cascade Range, Oregon A database of geologic map of Three Sisters Volcanic Cluster as described in the original abstract: The geologic map represents part of a late Quaternary volcanic field within which scores of eruptions have taken place over the last 50,000 years, some as recently as ~1,500 years ago. No rocks of early Pleistocene (or greater) age crop out within the map area, although volcanic and derivative sedimentary rocks of Miocene and Pliocene age are widespread to the east and west and are certainly buried beneath the younger volcanic field. Of the 145 volcanic map units described herein, only 22 are certainly older than late Pleistocene (>126 ka), and 12 are postglacial (<15 ka). The oldest unit identified yields an age... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Andesite, Basalt, Basaltic andesite, Bend, Oregon, Dacite, All tags... Geochemistry, Geomorphology, Geophysics, Oregon, Rhyodacite, Rhyolite, Sisters, Oregon, Three Sisters Volcanic Cluster, Three Sisters Volcanic Cluster, USGS Science Data Catalog (SDC), United States of America, Volcanology, biota, debris avalanche, lava flows, Fewer tags Geologic map database to accompany geologic map of the State of Hawaii This digital publication contains all the geologic map information used to publish U.S. Geological Survey Geologic Investigations Map Series SIM-3143 (Sherrod and others, 2021). This geologic map shows the distribution and stratigraphic relation of volcanic, intrusive, and sedimentary units emplaced in the past 8 million years across the eight principal islands of the Hawaiian archipelago, State of Hawaii, U.S.A. This geologic map database is accompanied by a report, which includes the formatted geologic map and explanatory pamphlet, available at https://doi.org/10.3133/sim3143​. The authors ask that users of the geologic map database cite both the report and the database: Report: Sherrod, D.R., Sinton, J.M.,... Categories: Data; Types: ArcGIS Map Package, ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Hana, Hawaii, Honolulu, Kahoolawe, Kauai County, All tags... Lanai, Maui, Molokai, Niihau, Oahu, USGS Science Data Catalog (SDC), United States, Volcanology, Wailuku, faults, geologic maps, geology, geoscientificInformation, volcanoes, Fewer tags Database for the Geologic Map of Lower Geyser Basin, Yellowstone National Park, Wyoming This data release contains digital GIS files digitized from 'Geologic map of Lower Geyser Basin, Yellowstone National Park, Wyoming' by L.J.P. Muffler, D.E. White, A.H. Truesdell, and R.O. Fournier, Miscellaneous Investigations Series Map I-1373. Categories: Data; Types: ArcGIS Map Package, ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Geyser, Hot spring, Hydrothermal Deposits, Lower Geyser Basin, Spring, All tags... USGS Science Data Catalog (SDC), Volcanology, Wyoming, Yellowstone National Park, Yellowstone National Park, Fewer tags 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 Database for the geologic map of the northern Harrat Rahat volcanic field, Kingdom of Saudi Arabia The Harrat Rahat volcanic field, located in the west-central part of the Kingdom of Saudi Arabia, is the largest of 15 harrats (Arabic for 'volcanic field') hosted within the Arabian plate. Harrat Rahat is 50 to 75 km wide (east-west) and 300 km long (north-south), covering an area of approximately 20,000 square kilometers and encompassing more than 900 observable vents. The overall map area and its dataset show the volcanic geology of the northern part (about 3,340 square kilometers) of Harrat Rahat, at a scale of 1:75,000. Two additional map areas and their feature classes highlight areas of interest at 1:25,000 scale. Northern Harrat Rahat is of interest owing to the location of the city of Al-Madinah Al-Munawarah... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Al-Madinah Al-Munawarah, Basalt, Benmoreite, Harrat Rahat volcanic field, Lava flow, All tags... Mugearite, Saudi Arabia, Trachyte, USGS Science Data Catalog (SDC), geology, geoscientificInformation, volcanic activity, Fewer tags Database for the geologic map of the central San Juan caldera cluster, southwestern Colorado This geodatabase contains all the geologic map information for the Geologic Map of the San Juan caldera cluster, southwestern Colorado and is part of U.S. Geological Survey Geologic Investigations Map Series I-2799. The San Juan Mountains are the largest erosional remnant of a composite volcanic field that covered much of the southern Rocky Mountains in middle Tertiary time. The San Juan field consists mainly of intermediate-composition lavas and breccias, erupted about 35-30 Ma from scattered central volcanoes (Conejos Formation) and overlain by voluminous ash-flow sheets erupted from caldera sources. In the central San Juan Mountains, eruption of at least 8,800 km3 of dacitic-rhyolitic magma as nine major ash... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Andesite, Ash-flow tuff, Basalt, Central San Juan Caldera Cluster, Central San Juan Mountains, All tags... Colorado, Geochemistry, Gunnison, Lava flow, Pyroclastic rock, Rhyolite, San Juan, Tuff, USGS Science Data Catalog (SDC), United States, Volcanic breccia, Volcanology, Welded tuff, caldera, faulting (geologic), faulting (geologic), geoscientificInformation, volcanic activity, volcanic activity, volcanic eruptions, volcanic features, volcanic rocks, volcanic rocks, volcanology, volcanology, Fewer tags Database for the Geologic Map of Pocket Basin, Yellowstone National Park, Wyoming This digital publication describes completely the hydrothermal, sedimentary, and volcanic deposits, as well as thermal features as a basis for understanding the hydrothermal processes and explosions in Pocket Basin, Yellowstone National Park, Wyoming at 1:2,400 scale. Categories: Data; Types: ArcGIS Map Package, ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Lower Geyser Basin, USGS Science Data Catalog (SDC), United States of America, Volcanology, Wyoming, All tags... Yellowstone, geology, hydrothermal explosion craters, hydrothermal processes, volcanoes, Fewer tags