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Seismology and Seismometry. Replica of the first known seismometer invented by the Chinese astronomer Chang Heng (78-139 A.D.) during the Han dynasty. Photo by R.M. Hamilton. Figure 1, pages 64-65, Earthquake Information Bulletin, v.11, no.2.
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Death Valley National Park, California. Furnace Creek Formation at the north end of the Black Mountains. View is southwest and west of Zabriskie Point, an overlook by Highway 190 about 3 miles up Furnace Creek Wash from Furnace Creek Inn. The base of the Furnace Creek Formation is at the topographic break between the badlands and the rougher, higher ground in the distance on the left. Light-colored playa beds about 2,500 feet thick extend to the base of a conglomerate which forms the dark cliff at the right. The beds are dipping to the right (north) into the Texas Spring Syncline. The center of the photograph looks west across Death Valley to the Panamint Range at Aguereberry Point; Tucki Mountain on the right....
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Cores from the Flood and Grisham well, lying on the ground near the well site. Copied by Survey from photo by W.B. Lang. Culberson County, Texas. January 1924.
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Earth science investigations of hazardous waste disposal sites provide site-specific geohydrologic data as well as generic information on the effectiveness of investigation techniques, monitoring systems and etc. Photo by S.C. Delaney, EPA. United States. ca. 1983.
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Seismology and Seismometry.U.S. Geological Survey National Earthquake Information Center. A develocorder records signals from fifteen stations on a continuous reel of film. This is processed by the machine and is ready for viewing within eleven minutes of an event. Photo by R. McKenzie, pre-1977. Page 10 (upper photo), Earthquake Information Bulletin, v.9, no.3.
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Quartz overgrowths on sandstone grains after clay formation, Nanushuk Group. Quartzose grains have overgrowths at points of low pressure (pore space) adjeacent to areas that were probably under high pressure (grain contacts). Overgrowths probably develop where clay coatings are absent. A polycrystalline quartz grain (upper left) has a pod of kaolinite growing on its surface. Sample 78ACh23, Kurupa anticline; magnification, 6.3 x 10, photomicrograph. Central North Slope, Alaska. Published as Figure 47A in U.S. Geological Survey Bulletin 1614. 1985.
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Death Valley National Park, California. Furnace Creek Formation at the north end of the Black Mountains. View is southwest and west of Zabriskie Point, an overlook by Highway 190 about 3 miles up Furnace Creek Wash from Furnace Creek Inn. The base of the Furnace Creek Formation is at the topographic break between the badlands and the rougher, higher ground in the distance on the left. Light-colored playa beds about 2,500 feet thick extend to the base of a conglomerate which forms the dark cliff at the right. The beds are dipping to the right (north) into the Texas Spring Syncline. The center of the photograph looks west across Death Valley to the Panamint Range at Aguereberry Point; Tucki Mountain on the right....
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Colorado National Monument, Colorado. Eastern end of Kodels Canyon Fault on the west side of Fruita Canyon. There is no visible displacement except for considerable thinning of Wingate Sandstone. The high cliff of Wingate Sandstone on the left rests on slopes of Chinle Formation. The pinon and juniper-covered slope near the middle is Kayenta Formation resting on thinned Wingate Sandstone. Entrada Sandstone forms the low cliffs on the right. Circa 1950. Figure 32, U.S. Geological Survey Professional Paper 451.
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Glacier National Park, Montana. Altyn Limestone in the lower slopes of Appekunny Mountain, northeast of Many Glacier Hotel. This view is at the type locality of the formation, close to the site of the former settlement of Altyn. The Lewis overthrust is at the base of the cliffs, and the smooth slopes below are underlain by shale of Cretaceous age, which yields few outcrops. July 6,1901. Figure 2, U.S. Geological Survey Professional Paper 296.
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Tadzhikistan Earthquake 1949. Rising behind the village of Khait is Chokhran Mountain, down which a landslide thundered in the 1949 earthquake. The landslide scar and landslide are visible behind and to the left of Khait, respectively. Photo by R.L. Wesson. Page 12, Earthquake Information Bulletin, v.7, no.1.
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Glacier National Park, Montana. Mud chip breccia and mud balls in the Grinnell Formation at Geology Stop No. 5 along Going-to-the-Sun Highway. Photo by E. Larson, August 1982.
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Guatemala Earthquake 1976. Bent rails at Puerto Barrios(?) wharf caused by faulting. Photo by A.F. Espinosa. Figure 2, page 8, Earthquake Information Bulletin, v.9, no.2.
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Alaska. Kodiak Village. The hill back of the village was sculptured by an ice sheet moving from left to right. The stream gorge is of later formation. Harriman Expedition, 1899.
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Hawke's Bay, New Zealand, Earthquake February 3, 1931. Fire-damaged buildings and cars in Napier. 1931. Page 17 (upper photo), Earthquake Information Bulletin, v.16. no.1.
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Photomicrograph of fine-grained quartzite of the Weisner formation: with plain light, showing a little Detrital zircon (z) and orthoclase (o). Bartow County, Georgia. Circa 1944. Plate 2-A, in U.S.Geological Survey Professional Paper 224. 1950.
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B. Montano Grant, 5000 feet south of north line, 10,000 feet west of east line. View southeast. Sandstone of Morrison formation (JMO), Dakota sandstone (KD), and lower two Tres Hermanos sandstone. Members (KD, and DK2), of the Mancos dipping eastward. Photo by J.W. Wyckoff. Sandoval County, New Mexico. 1932.
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Glacier National Park, Montana. Flank of Mount Cleveland with Chief Mountain in the background, viewed southeast from Stoney Indian Peaks. Middle Belt carbonate sill crops out along the cliff face above the prominent red bed in the Snowslip Formation. August 21, 1983.
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Coeur d'Alene District, Idaho. Contorted mud cracks in an argillitic bed in the lower part of the Wallace Formation. Figure 4, U.S. Geological Survey Professional Paper 478.
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Colorado National Monument, Colorado. Updragged Wingate Sandstone along Redlands Fault, looking northwest from a side road 1.5 miles southwest of the intersection of South Camp Road and South Broadway. The white "pimple" atop the cliff near the left skyline is Liberty Cap, an erosional remnant of the Wingate Sandstone, reachable via the Liberty Cap Trail. Here the Chinle Formation was largely squeezed out along the fault. 1976. Figure 38, U.S. Geological Survey Bulletin 1508.
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Album caption and index card: Contorted stratification in sandstones of the Supai Group, Grand Canyon. A, Anticlines and synclines in Wescogame Formation from pene-contemporaneous tight folding of sand body. Traces of structure etched on the surface by weathering, Thunder Riever Trail. Hammer for scale. Grand Canyon National Park. Coconino County, Arizona. n.d. Published as Figures N6-A and N2-B in U.S. Geological Survey Professional Paper 1173. 1982.
map background search result map search result map Quartz overgrowths on sandstone grains after clay formation, Nanushuk Group. Central North Slope, Alaska. No date. Bent rails at Puerto Barrios(?) wharf caused by faulting. Guatemala Earthquake 1976. Fire-damaged buildings and cars in Napier. Hawke's Bay, New Zealand, Earthquake. 1931. The hill back of the village was sculptured by an ice sheet moving from left to right. Kodiak Village. Alaska. 1899. Contorted mud cracks in an argillitic bed in the lower part of the Wallace Formation. Coeur d'Alene District, Idaho. No date. Furnace Creek Formation at the north end of the Black Mountains. Death Valley National Park, California. Circa 1960. Furnace Creek Formation at the north end of the Black Mountains. Death Valley National Park, California. Circa 1960. B. Montano Grant, 5000 feet south of north line, 10,000 feet west of east line. Sandoval County, New Mexico. 1932. Photomicrograph of fine-grained quartzite of the Weisner formation. Bartow County, Georgia. Circa 1944. Eastern end of Kodels Canyon Fault on the west side of Fruita Canyon. Colorado National Monument, Colorado. Circa 1950. Updragged Wingate Sandstone along Redlands Fault. Colorado National Monument, Colorado. 1976. Mud chip breccia and mud balls in the Grinnell Formation at Geology Stop No. 5 along Going-to-the-Sun Highway. Glacier National Park, Montana. 1982. Flank of Mount Cleveland. Glacier National Park, Montana. 1983. Contorted stratification in sandstones of the Supai Group on Thunder River Trail. Grand Canyon National Park, Coconino County, Arizona. No date. Altyn Limestone in the lower slopes of Appekunny Mountain. Glacier National Park, Montana. 1901. Eastern end of Kodels Canyon Fault on the west side of Fruita Canyon. Colorado National Monument, Colorado. Circa 1950. Updragged Wingate Sandstone along Redlands Fault. Colorado National Monument, Colorado. 1976. Photomicrograph of fine-grained quartzite of the Weisner formation. Bartow County, Georgia. Circa 1944. Contorted mud cracks in an argillitic bed in the lower part of the Wallace Formation. Coeur d'Alene District, Idaho. No date. Mud chip breccia and mud balls in the Grinnell Formation at Geology Stop No. 5 along Going-to-the-Sun Highway. Glacier National Park, Montana. 1982. Flank of Mount Cleveland. Glacier National Park, Montana. 1983. Altyn Limestone in the lower slopes of Appekunny Mountain. Glacier National Park, Montana. 1901. B. Montano Grant, 5000 feet south of north line, 10,000 feet west of east line. Sandoval County, New Mexico. 1932. Furnace Creek Formation at the north end of the Black Mountains. Death Valley National Park, California. Circa 1960. Furnace Creek Formation at the north end of the Black Mountains. Death Valley National Park, California. Circa 1960. Contorted stratification in sandstones of the Supai Group on Thunder River Trail. Grand Canyon National Park, Coconino County, Arizona. No date. The hill back of the village was sculptured by an ice sheet moving from left to right. Kodiak Village. Alaska. 1899. Bent rails at Puerto Barrios(?) wharf caused by faulting. Guatemala Earthquake 1976. Quartz overgrowths on sandstone grains after clay formation, Nanushuk Group. Central North Slope, Alaska. No date. Fire-damaged buildings and cars in Napier. Hawke's Bay, New Zealand, Earthquake. 1931.