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Seamless Integrated Geologic Map Database of the Intermountain West: Contributions to The National Geologic Map This dataset is intended to provide seamless, integrated geologic mapping of the U.S. Intermountain West region as a contribution to The National Geologic Map supported by the National Cooperative Geologic Mapping Program of the U.S. Geological Survey. Surficial and bedrock geology are included in this data release as independent datasets at a variable resolution from 1:50,000 to 1:250,000 scale. No original interpretations are presented in this dataset; rather, all interpretive data are assimilated from referenceable publications. Derivative polygon features created for this dataset demonstrate the distribution of SIGMa-GeMS Geologic Provinces derived from the distribution of map units. Initial contributions to... Categories: Data; Tags: Colorado, Espanola Basin, Geomorphology, Laramide orgeny, Mazatzal terrane, All tags... National Cooperative Geologic Mapping Program, New Mexico, Rio Grande Rift, San Juan Basin, San Juan Mountains, San Luis Valley, Southern Rocky Mountains volcanic field, Stratigraphy, Structural Geology, Taos Pleateau volcanic field, The National Geologic Map, USGS Science Data Catalog (SDC), Volcanology, Western Interior Basin, Yavapai terrane, bedrock geologic units, faulting, geologic maps, gravel deposits, igneous rocks, metamorphic rocks, plutonic rocks, sand deposits, sedimentary rocks, unconsolidated deposits, volcanic rocks, Fewer tags 2021 This child item contains zipped monthly folders for data collected during 2021. Tags: HI, Halemaumau, Hawaii, Hawaii County 2, Kilauea Volcano, All tags... USA, field inventory and monitoring, geoscientificInformation, volcanic activity, volcanic rocks, Fewer tags Feature dataset GeologicMap, part of Geologic Map of Northeasternmost Tennessee, and Adjacent Parts of Virginia and North Carolina The geology of an area of 660 square miles mostly in the northeastern corner of Tennessee and small adjacent areas in Virginia and North Carolina is the subject of this report. The region lies principally in the Unaka province, with extensions northwestward into the Appalachian Valley and southwestward into the Blue Ridge province. The report combines results of surveys made between 1941 and 1953 by the U. S. Geological Survey, the Tennessee Division of Geology, and the Tennessee Valley Authority, and is published in cooperation with the Tennessee Division of Geology. Northeasternmost Tennessee is a region of widespread mineralization and was formerly important for mineral production. Iron, manganese, and bauxite... Tags: Abingdon, Alluvium, Andesite, Argillite, Arkose, All tags... Austinville, Baldwin Gap, Blue Ridge, Bluff City, Bristol, Cambrian, Carbonate rock, Carter, Cenozoic, Chert, Conglomerate, Conococheague Limestone, Damascus, Doe, Dolostone, Economic Geology, Elbrook Dolomite, Elizabethton, Elk Mills, Elk Park, Erwin, Erwin Formation, Flaser gneiss, Gneiss, Granite, Granodiorite, Gravel, Grayson, Graywacke, Greenstone, Hampton, Hampton Formation, Holston Valley, Honaker Dolomite, Iron Mountain Gap, Iron Mountains, Jonesboro Limestone, Keenburg, Konnarock, Latite, Laurel Bloomery, Lenoir Limestone, Limestone, Lucy Creek, Lynn Mountain, Migmatite, Mill Creek, Mount Rogers volcanic group, Mountain City, Mylonite, Nolichucky Shale, North Carolina, Ordovician, Paleozoic, Phyllite, Phyllonite, Precambrian, Quartz monzonite, Quartzite, Quaternary, Rhyolite, Rome Formation, Sandstone, Schist, Shady Dolomite, Shady Valley, Shale, Sherwood, Siltstone, Slate, South Holston Lake, Stone Mountain, Stratigraphy, Structural Geology, Talus, Tennessee, Tertiary, Tuff, USGS Science Data Catalog (SDC), Unicoi Formation, Valley Forge, Virginia, Watauga, White Rocks Mountain, Zionville, iron, manganese, metamorphic rocks, metamorphism (geological), plutonic rocks, sedimentary rocks, unconsolidated deposits, volcanic rocks, zinc, Fewer tags Structure-from-Motion model for the Nelson Slides area, Mushroom Rock region, northeastern California This dataset contains a point cloud and orthophoto of the Nelson Slides area, Mushroom Rock region, northeastern California created using structure-from-motion. It is Dataset S3 in the related manuscript. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Northeastern California, fault, structure from motion, volcanic rocks Structure-from-Motion model for the Curtis Lake North area, Mushroom Rock region, northeastern California This dataset contains a point cloud and orthophoto of the Curtis Lake North area, Mushroom Rock region, northeastern California created using structure-from-motion. It is Dataset S1 in the related manuscript. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Northeastern California, fault, structure from motion, volcanic rocks Volcanic rocks north of Belmont Road. Nye County, Nevada. 1915. Hills of volcanic rocks north of Belmont road. Nye County, Nevada. 1915. Plate 4 in U.S. Geological Survey. Bulletin 723. 1924. Categories: Image; Tags: Ferguson, H.G. Collection, Nye County, Nevada, Photographers, Volcanic Rocks, photo print 2019 This child item contains zipped monthly folders for data collected during 2019. Tags: HI, Halemaumau, Hawaii, Hawaii County 2, Kilauea Volcano, All tags... USA, field inventory and monitoring, geoscientificInformation, volcanic activity, volcanic rocks, Fewer tags Digital database for the geologic map of the Vidal, California, and Parker SW, California-Arizona quadrangles This geologic database is a digitized version of the original 1:24,000-scale analog geologic map titled "Geologic map of the Vidal, California, and Parker SW, California-Arizona quadrangles", published by the U.S. Geological Survey (USGS) in 1980. The map area straddles the Arizona-California border, and is located approximately 9.0 km (5.6 mi) west-southwest of Parker, CA, immediately south of the unincorporated communities of Vidal and Vidal Junction, CA. The map area includes the northern Riverside Mountains, which contain a prominent suite of Permian, Mesozoic, and potentially Precambrian metamorphic and metasedimentary rocks. These rocks predominantly consist of gneisses, schists, limestones, and dolomites,... Tags: Alluvium, Andesite, Arizona, Breccia, California, All tags... Colorado River Indian Reservation, Dolomite, GMEG (Geology, Minerals, Energy, and Geophysics Science Center), GeMS (Geologic Map Schema), Gneiss, Granite, Gravel, Intermediate volcanic rock, LOCOS (Geologic Mapping of the Lower Colorado River System), Limestone, Mafic volcanic rock, NCGMP (National Cooperative Geologic Mapping Program), NGMDB (National Geologic Map Database), Parker, Parker SW, Rhyolite, Riverside Mountains, Sand, Tufa, Tuff, USGI (U.S. GeoFramework Initiative), USGS Science Data Catalog (SDC), Vidal, bedrock geologic units, digitization, faulting (geologic), geologic contacts, geologic history, geologic maps, geoscientificInformation, igneous rocks, metamorphic rocks, plutonic rocks, sedimentary rocks, unconsolidated deposits, volcanic rocks, Fewer tags Keanakākoʻi Tephra unit D, Kīlauea Volcano, Hawaii: sample details, grain size, and grain shape data for 100 tephra samples A total of 100 samples were collected from two proximal sections of Keanakākoʻi, Tephra unit D deposits. Samples were analyzed on Microtrac CAMSIZER® P4 and X2 instruments for grain size and shape data in the USGS Hawaiian Volcano Observatory (HVO) tephra lab. Data release includes sample descriptions, half phi grain size distributions, and statistical output from DECOLOG deconvolution modeling of grain size distributions. Grain size is reported using the sieve compatible Xcmin parameter (CAMSIZER® manual, 2020). Data of 2D shape parameter means of sphericity, Krumbein roundness and compactness of samples as well as for half phi grain size bins at 4, 3, 2, 1, 0, and -1 phi are also included. Please refer to associated... Categories: Data; Tags: Camsizer, Grain shape, Grain size, Hawaii Volcanoes National Park, Kīlauea Volcano, All tags... Kīlauea summit, Magma-water interaction, Phreatomagmatic, Sample information, Shape parameter, Tephra, Tephra deposit, USGS Science Data Catalog (SDC), Volcanic ash, Volcanic ash, Volcanology, geoscientificInformation, grain-size analysis, volcanic rocks, volcanology, Fewer tags 2023 (updated 2023-10-24) We depict changing eruptive features within the summit caldera of Kīlauea volcano, Island of Hawaiʻi with rapid-response digital elevation models (DEMs) acquired since a series of caldera-filling effusive eruptions began on December 20, 2020. These eruptions follow the caldera collapse of 2018, with new lava progressively filling the approximately 1-cubic-kilometer pit that formed between May and August of that year. The majority of the provided DEMs were constructed via structure-from-motion (SfM) photogrammetry from either helicopter or uncrewed aircraft system (UAS) overflight images, with the remainder constructed via terrestrial laser scanning (TLS) from the Halemaʻumaʻu crater rim. These data were collected... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Basalt, Halemaʻumaʻu, Hawaii, Kaluapele, Kīlauea, All tags... Lava flow, Mafic volcanic rock, Pacific, Pacific Islands, United States, Volcanic rock, volcanic activity, volcanic rocks, Fewer tags Isopach, lithic isopleth, and pyroxene, Fe-Ti oxide, and plagioclase geochemistry data for the Orange Tuff, West Java, Indonesia The Orange Tuff is an informally named tephra-fall deposit that crops out extensively in the volcanic highlands to the south and southwest of Bogor, West Java, Indonesia. The data included in this data release documents the deposit thickness and maximum sizes of lithics present at sites throughout its distribution. Additional tables document dispersal areas calculated from within hand-drawn isopach and lithic isopleth maps based on the aforementioned thickness and lithic size data. Such area measurements will be used in the related subsequent publication listed in the metadata to derive eruption and deposit characteristics such as bulk volume and column height and to help determine the source volcano. The isopach... Tags: Bogor, Indonesia, Jawa Barat, Salak Satu, Gunung, USGS Science Data Catalog (SDC), All tags... geochemistry, volcanic rocks, volcanology, Fewer tags Hazard boundaries for the volcanic hazard assessment of Medicine Lake volcano, California Medicine Lake volcano (MLV) is a very large shield-shaped volcano located in northern California where it forms part of the southern Cascade Range of volcanoes. It has erupted hundreds of times during its half-million-year history, including nine times during the past 5,200 years, most recently 950 years ago. This record represents one of the highest eruptive frequencies among Cascade volcanoes and includes a wide variety of different types of lava flows and at least two explosive eruptions that produced widespread fallout. Compared to those of a typical Cascade stratovolcano, eruptive vents at MLV are widely distributed, extending 55 km north-south and 40 km east-west. The total area covered by MLV lavas is >2,000... Tags: California, Klamath National Forest, Lava Beds National Monument, Medicine Lake, Medicine Lake volcano, All tags... Modoc, Modoc National Forest, Shasta-Trinity National Forest, Siskiyou, USGS Science Data Catalog (SDC), Volcanic ash, Volcanology, hazards, volcanic activity, volcanic eruption prediction, volcanic rocks, volcanology, Fewer tags Data release for Geologic Map of the Poncha Pass Area, Chaffee, Fremont, and Saguache Counties, Colorado This release presents the GIS data (in GDB, shapefile, and e00 [coverage] formats) and metadata for a 1:24,000-scale geologic map of the Poncha Pass area in central Colorado. A cartographic version of the geologic map, including map unit descriptions, interpretative text, and accessory figures and tables, is being separately published as a U.S. Geological Survey Scientific Investigations Map (SIM). The map area is irregular in shape, covering all of one 7.5' quadrangle (Poncha Pass) and parts of five others (Mount Ouray, Maysville, Salida West, Salida East, and Wellsville). The map boundaries were drawn to cover all of the "Poncha mountain block", coincident with the approximately 15-kilometer-long northwestern... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 40Ar/39Ar age, Arkansas River, Bear Creek, Bonanza Tuff, Bull Lake glaciation, All tags... Chaffee County, Cleveland Mountain, Clover Creek, Colorado, Conejos Formation, Droz Creek, Dry Union Formation, Fremont County, Geomorphology, Laramide orogeny, Little Cochetopa Creek, Mears Junction, Methodist Mountain, Mineral Resources, Mount Ouray, Murphys Hole, O’Haver Lake, Pinedale Glaciation, Poncha Creek, Poncha Mountain, Poncha Pass, Poncha Springs, Rio Grande rift, Round Hill, Saguache County, Salida, San Luis Creek, San Luis Valley, Sand Gulch, Sangre de Cristo Mountains, Sawatch Range, Silver Creek, Simmons Peak, South Arkansas River, Stratigraphy, Structural Geology, U-Pb age, USA, USGS Science Data Catalog (SDC), United States, Upper Arkansas Valley, Volcanology, basement rocks, basin-fill deposits, dike, fault slip, intrusive rocks, metamorphic rocks, mountain block, normal fault, oblique-slip fault, pre-Bull Lake glaciation, range-front fault, reverse fault, sedimentary rocks, sill, strike slip, surficial deposits, uplift, volcanic rocks, Fewer tags Lava fountain heights and associated timelapse images during the 2018 lower East Rift Zone eruption of Kīlauea volcano, Island of Hawaiʻi The 2018 eruption from the lower East Rift Zone of Kīlauea volcano, on the Island of Hawaiʻi, was one of the most significant and destructive events on the volcano in the past 200 years (Neal and others, 2019; Patrick and others, 2020; Anderson and others, 2023; Mulliken and others, 2024). Between May and September of that year, 24 fissures opened on the lower flank of the volcano, producing lava fountains and expansive lava flows that covered an area of 36 km2 (Neal and others, 2019; Zoeller and others, 2020). Effusion rates at the dominant vent, fissure 8, were often >100 m3 s-1, and the total eruptive volume is estimated at 0.9–1.4 km3 (Dietterich and others, 2021) making it one of the most voluminous effusive... Categories: Data; Tags: Cinder cone, East Rift Zone, Geomorphology, Hawaii, Kilauea, All tags... Lava fountain, Leilani Estates, Pahoa South, Puna District, USGS Science Data Catalog (SDC), Volcano monitoring, Volcanology, volcanic activity, volcanic rocks, Fewer tags 40Ar/39Ar data and ages for volcanic rocks in the Mushroom Rock region, northeastern California 40Ar/39Ar data and ages for select bedrock volcanic samples listed in Table 1 Volcanic Rock Samples and described in Table S4 in the related manuscript. Samples collected from the Mushroom Rock region, northeastern California. Categories: Data; Tags: Northeastern California, argon geochronology, volcanic rocks Thermal camera data for the summit of Kīlauea Volcano, 2019–2022 Following the 2018 collapses of the caldera floor at the summit of Kīlauea Volcano (Anderson and others, 2019; Neal and others, 2019), the enlarged and deepened depression hosted a variety of volcanic activity between 2019 and 2022. These events included an unprecedented water lake and two prolonged episodes of lava lake activity. This data release includes images from a stationary thermal camera poised on the western caldera rim, with the camera providing a continuous record of the summit changes over this period. The thermal images provide an excellent observational record of the activity owing to the ability to see through thick volcanic fume, and the clarity with which they highlight active portions of the... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: HI, Halemaumau, Hawaii, Hawaii County 2, Kilauea Volcano, All tags... USA, USGS Science Data Catalog (SDC), Volcanology, field inventory and monitoring, geoscientificInformation, volcanic activity, volcanic rocks, Fewer tags 2020 We depict changing eruptive features within the summit caldera of Kīlauea volcano, Island of Hawaiʻi with rapid-response digital elevation models (DEMs) acquired since a series of caldera-filling effusive eruptions began on December 20, 2020. These eruptions follow the caldera collapse of 2018, with new lava progressively filling the approximately 1-cubic-kilometer pit that formed between May and August of that year. The majority of the provided DEMs were constructed via structure-from-motion (SfM) photogrammetry from either helicopter or uncrewed aircraft system (UAS) overflight images, with the remainder constructed via terrestrial laser scanning (TLS) from the Halemaʻumaʻu crater rim. These data were collected... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Basalt, Halemaʻumaʻu, Hawaii, Kaluapele, Kīlauea, All tags... Lava flow, Mafic volcanic rock, Pacific, Pacific Islands, United States, Volcanic rock, volcanic activity, volcanic rocks, Fewer tags Database for the Preliminary Geologic Map of the Cherry Hill Quadrangle, Dinwiddie, Sussex, and Greensville Counties, Virginia The database for the Preliminary Geologic Map of the Cherry Hill Quadrangle, Dinwiddie, Sussex, and Greensville Counties, Virginia geographically straddles the Coastal Plain and Piedmont Provinces along the Tidewater Fall Line. Rocks of the eastern Piedmont Roanoke Rapids terrane crop out in the western part of the quadrangle and consist of greenschist- to amphibolite-facies Neoproterozoic felsic to intermediate metavolcanic rocks, some of which contain flattened quartz phenocrysts and are locally isoclinally folded; greenstone that is locally primary layered; and intrusive metadiorite and metagabbro, much of which has been altered to amphibolite. Most of these rocks are strongly foliated and jointed. Greenschist-facies... Tags: Alluvial terrace, Alluvium, Amphibolite, Aplite, Atlantic coastal plain, All tags... Bacons Castle Formation, Black Branch, Cambrian, Cataclasite, Cherry Hill, Chesapeake Group, Clastic rock, Clay or mud, Coarse-grained mixed clastic rock, Colluvium, De Witt pluton, Devonian, Dinwiddie County, Dinwiddie terrane, Double Branch Creek, Economic Geology, Felsic metavolcanic rock, Gabbroid, Geochemistry, Geomorphology, Granite, Granitoid, Gravel, Greenstone, Greenville County, Hardwood Creek, Harris Swamp, Holocene, Horsepen Branch, Intermediate metavolcanic rock, Lake or marine sediment, Landslide, Manlove Branch, Mayes Pond, Mesozoic, Metamorphic rock, Metasedimentary rock, Metavolcanic rock, Mica schist, Millrun Branch, Mineral Resources, Miocene, Mixed volcanic/clastic rock, Mylonite, Neogene, Neoproterozoic, Nottoway River, Nottoway River fault zone, Open-File Report, Paleozoic, Pegmatite, Pennsylvanian, Pleistocene, Pliocene, Plutonic rock, Quartzite, Quaternary, Rita Branch, Roanoke Rapids terrane, Rocky Branch, Sand, Sandstone, Sappony Creek, Schist, Sedimentology, Silurian, Smith Branch, Spring Meadow Branch, Stewart Branch, Stratigraphy, Structural Geology, Sussex County, Terrace, USGS Science Data Catalog (SDC), Unconsolidated material, Virginia, bedrock geologic units, building stone resources, deformation (geologic), earth characteristics, earth sciences, environment, fault zones, faulting (geologic), faults, foliation (geologic), fracture (geologic), gabbro, geochemistry, geologic contacts, geologic history, geologic maps, geologic structure, geology, geoscientificInformation, geospatial datasets, gravel deposits, igneous rocks, lineation (geologic), lithostratigraphy, maps and atlases, metallic mineral resources, metamorphic rocks, metamorphism (geological), mine sites, mineral resources, natural resources, natural rock formations, petrology, plutonic rocks, rocks and deposits, sand deposits, sedimentary rocks, sedimentology, silt, stratigraphy, structural geology, study areas, surficial geologic units, unconsolidated deposits, volcanic rocks, Fewer tags Volcanic rock sample locations from the Mushroom Rock region, northeastern California This dataset contains locations of volcanic rock samples from the Mushroom Rock region, northeastern California, and these data are in Table 1 in the related manuscript. Categories: Data; Tags: Northeastern California, sample, volcanic rocks Structure-from-Motion model for the Red Mountain area, Mushroom Rock region, northeastern California This dataset contains a point cloud and orthophoto of the Red Mountain area in the Mushroom Rock region of northeastern California. It is Dataset S2 in the related manuscript. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Northeastern California, fault, structure from motion, volcanic rocks 1 2 3 »