Filters: Tags: Al-Madinah Al-Munawarah (X) > partyWithName: Drew T. Downs (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (1) 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 Joel E. Robinson U.S. Geological Survey, ALASKA REGION Volcano Science Center U.S. Geological Survey - ScienceBase Duane E. Champion More... Categories Data (1) Tag Types Theme (1) Place (1) Harvest Set (1) Tag Schemes None (1) Lithologic classification of geologic map units (1) USGS Thesaurus (1) Common geographic areas (1) ISO 19115 Topic Category (1) View Results as: JSON ATOM CSV

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