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This dataset contains photographs keyed to station points along the Blue Ridge Parkway in Virginia. Photographs are titled and arranged by 7.5-minute quadrangle, and station points are located in the "Detailed geologic mapping geodatabase for the Blue Ridge Parkway in Virginia." The first part of the photograph's filename corresponds to the FieldID attribute of the PhotoPoints entity in the Blue Ridge Parkway Geodatabase. The photographs in this collection are for the Snowden quadrangle, but are also part of a larger data release (Carter et al., 2016). For Snowden, there are 54 jpg in the collection. Carter, M.W., Crider, E.A., Southworth, C.S., and Aleinikoff, J.N., 2016, Detailed geologic mapping geodatabase for...
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If the San Andreas fault with about 300 km of right slip, the Carlock fault with about 60 km of left slip, and the Big Pine fault with about 15 km of left slip are considered to have been contemporaneously active, a space problem at their high-angle junctions becomes apparent. Large crustal masses converge in the area of the junctions as a result of the simultaneous large displacements on the faults. We present here a model in which an early straight north-northwest–trending San Andreas deforms to its present bent configuration in response to a westward displacement of crust north of the Garlock fault. During this deformation, the crust north of the Garlock in the vicinity of the junction undergoes north-south shortening,...
Categories: Publication; Types: Citation; Tags: Geology
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New 1:24,000-scale geologic mapping in the Storm King Mountain7.5' quadrangle, in support of the USGS Western Colorado I-70Corridor Cooperative Geologic Mapping Project, provides new dataon the structure on the south margin of the White River upliftand the Grand Hogback and on the nature, history, anddistribution of surficial geologic units.Rocks ranging from Holocene to Proterozoic in age are shown onthe map. The Canyon Creek Conglomerate, a unit presently knownto only occur in this quadrangle, is interpreted to have beendeposited in a very steep sided local basin formed bydissolution of Pennsylvanian evaporite late in Tertiary time.At the top of the Late Cretaceous Williams Fork Formation is aunit of sandstone,...
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This cover contains the outlines of recent landslides formed prior to Hurricane Mitch in October - November 1998. Jeffrey Coe and Robert Bucknam mapped the landslides. Most landslides were mapped using 1:40,000-scale aerial photographs and a Kern PG-2 photogrammetric plotter at 4X and 8X magnifications. The photographs were scaled and oriented to the topographic base map using prominent topographic landmarks and plotted on a transparent polyester overlay registered to the topographic base maps at scales of 1:50,000 or 1:25,000. In areas where landslides were very sparse, the aerial photographs were scanned with a mirror stereoscope at 4X magnification, and landslide locations were transferred to base maps by inspection....
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This cover contains the outlines of recent landslides formed prior to Hurricane Mitch in October - November 1998. Jeffrey Coe and Robert Bucknam mapped the landslides. Most landslides were mapped using 1:40,000-scale aerial photographs and a Kern PG-2 photogrammetric plotter at 4X and 8X magnifications. The photographs were scaled and oriented to the topographic base map using prominent topographic landmarks and plotted on a transparent polyester overlay registered to the topographic base maps at scales of 1:50,000 or 1:25,000. In areas where landslides were very sparse, the aerial photographs were scanned with a mirror stereoscope at 4X magnification, and landslide locations were transferred to base maps by inspection....
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New seismic reflection data from Chesapeake Bay reveal a buried, 85-km-wide, 1.5-2.0-km-deep, peak-ring impact crater, carved through upper Eocene to Lower Cretaceous sedimentary strata and into underlying pre-Mesozoic crystalline basement rocks. A polymictic, late Eocene impact breccia, composed mainly of locally derived sedimentary debris (determined from four continuous cores), surrounds and partly fills the crater. Structural and sedimentary characteristics of the Chesapeake Bay crater closely resemble those of the Miocene Ries peakring crater in southern Germany. We speculate that the Chesapeake Bay crater is the source of the North American tektite strewn field.
Categories: Publication; Types: Citation; Tags: Geology
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This data set is a polygon coverage created in ARC/INFO that represents the depth to the top of the Madison Limestone below the land surface, Black Hills, South Dakota.
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Map quadrangle boundaries for the 1:63,360-scale maps of Alaska, with unique identification codes conforming to the scheme used in the related data set quad24, which contains 1:24,000-scale quadrangle names and codes for the conterminous US and Hawaii.
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This location is part of the Arizona Mineral Industry Location System (AzMILS), an inventory of mineral occurences, prospects and mine locations in Arizona. Yavapai1128B is located in T13N R2W Sec 25 W2 in the Groom Creek - 7.5 Min quad. This collection consists of various reports, maps, records and related materials acquired by the Arizona Department of Mines and Mineral Resources regarding mining properties in Arizona. Information was obtained by various means, including the property owners, exploration companies, consultants, verbal interviews, field visits, newspapers and publications. Some sections may be redacted for copyright. Please see the access statement.
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This location is part of the Arizona Mineral Industry Location System (AzMILS), an inventory of mineral occurences, prospects and mine locations in Arizona. Maricopa114 is located in T4N R9W Sec 36 C in the Big Horn Mts - 15 Min quad. This collection consists of various reports, maps, records and related materials acquired by the Arizona Department of Mines and Mineral Resources regarding mining properties in Arizona. Information was obtained by various means, including the property owners, exploration companies, consultants, verbal interviews, field visits, newspapers and publications. Some sections may be redacted for copyright. Please see the access statement.


map background search result map search result map USGS map quadrangle index: 1:63,360 scale maps of Alaska Geologic map of the Storm King Mountain quadrangle, GarfieldCounty, Colorado Older landslides in La Uni�n quadrangle, Guatemala Older landslides in R�o Hondo quadrangle, Guatemala Geologic structure-contours for the top of the Inyan Kara Formation in the Black Hills Area, South Dakota Depth to top of the Madison Limestone ADMMR mining collection file: Monte Cristo Mine ADMMR mining collection file: Big Horn Copper Prospect Photographs from the Blue Ridge Parkway in Virginia (Snowden region) Logan Mine Area, Geologic Map Mines Holding Company Claim Map Tombstone Underground Workings Showing Silver Thread, Empire, and Tranquility Shafts Areal Geology Map of Iron Cap, Ironton, Ionia, Head Center, and Grand Central Claims Alteration and Mineralization Zoning of the Squaw Peak Porphyry Copper Deposit Pinal Copper Corporation Property, Geologic Map Gallagher Vanadium Area Geology and Assay Map Sheet 1 Santa Rita Limestone Quarry, Geologic Map Map of U.V.X. Mine Showing Selected Geology and a Cross Section Index ADMMR mining collection file: Big Horn Copper Prospect ADMMR mining collection file: Monte Cristo Mine Geologic map of the Storm King Mountain quadrangle, GarfieldCounty, Colorado Older landslides in La Uni�n quadrangle, Guatemala Older landslides in R�o Hondo quadrangle, Guatemala Geologic structure-contours for the top of the Inyan Kara Formation in the Black Hills Area, South Dakota Depth to top of the Madison Limestone Photographs from the Blue Ridge Parkway in Virginia (Snowden region) USGS map quadrangle index: 1:63,360 scale maps of Alaska