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,{"id":70186214,"text":"70186214 - 1993 - Fracture zone traces across  the North Pacific Cretaceous Quiet Zone and their tectonic im­plications","interactions":[],"lastModifiedDate":"2017-03-31T14:40:29","indexId":"70186214","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Fracture zone traces across  the North Pacific Cretaceous Quiet Zone and their tectonic im­plications","docAbstract":"<p>No abstract available&nbsp;</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"The Mesozoic Pacific: Geology, tectonics, and volcanism","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Wiley","doi":"10.1029/GM077p0137","usgsCitation":"Atwater, T., Sclater, J., Sandwell, D., Severinghaus, J., and Marlow, M.S., 1993, Fracture zone traces across  the North Pacific Cretaceous Quiet Zone and their tectonic im­plications, chap. <i>of</i> The Mesozoic Pacific: Geology, tectonics, and volcanism, p. 137-154, https://doi.org/10.1029/GM077p0137.","productDescription":"18 p. ","startPage":"137","endPage":"154","costCenters":[],"links":[{"id":338979,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58df6acae4b02ff32c6aea95","contributors":{"authors":[{"text":"Atwater, Tanya","contributorId":168311,"corporation":false,"usgs":false,"family":"Atwater","given":"Tanya","email":"","affiliations":[{"id":6710,"text":"University of California, Santa Barbara, CA","active":true,"usgs":false}],"preferred":false,"id":687894,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sclater, John","contributorId":190236,"corporation":false,"usgs":false,"family":"Sclater","given":"John","email":"","affiliations":[],"preferred":false,"id":687895,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sandwell, David","contributorId":190237,"corporation":false,"usgs":false,"family":"Sandwell","given":"David","email":"","affiliations":[],"preferred":false,"id":687896,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Severinghaus, Jeff","contributorId":190238,"corporation":false,"usgs":false,"family":"Severinghaus","given":"Jeff","email":"","affiliations":[],"preferred":false,"id":687897,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Marlow, Michael S.","contributorId":72775,"corporation":false,"usgs":true,"family":"Marlow","given":"Michael","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":687898,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":1003047,"text":"1003047 - 1993 - Least tern and piping plover nesting at sand pits in Nebraska","interactions":[],"lastModifiedDate":"2023-11-18T15:46:07.409712","indexId":"1003047","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1272,"text":"Colonial Waterbirds","printIssn":"07386028","active":false,"publicationSubtype":{"id":10}},"title":"Least tern and piping plover nesting at sand pits in Nebraska","docAbstract":"Endangered Least Terns (Sterna antillarum) and threatened Piping Plovers (Charadrius melodus) nest at commercial sand and gravel mining operations (sand pits) along the Platte River system in Nebraska. Sandbar habitat has been disappearing since the early 1900's along the Platte River system, but numbers of sand pits have increased. We hypothesized that birds would more fully utilize sand pits where suitable sandbar habitat was limited. We inventoried sand pits and censused terns and plovers on both habitats along the Loup River, part of the North Loup River, and most of the Platte River during 1988-1991. Using aircraft, we also quantified features of suitable sand pits present on the central Platte in 1988 and lower Platte in 1990, and related features to abundance and presence of birds. We found 225 sand pits of which 78 were suitable and 187 were unsuitable for nesting. Along the central Platte, where sandbar habitat is severely degraded, birds nested at 81% of the suitable sand pits (N = 32) at least once during 1988-1991, and most birds (61-94%) nested on sand pits. Along the lower Platte, where both sandbar and sand pit habitat are plentiful, birds nested at 60% of the suitable sand pits (N = 35) at least once during 1988-1991, and most birds (60-86%) nested on sandbars. Numbers of terns and plovers were more weakly correlated with features of sand pits on the central Platte than on the lower Platte. Least Terns and Piping Plovers seem to use more of the suitable sand pit habitat on the central Platte than on the lower Platte. Sand pits probably have influenced the birds' distribution by providing alternative nesting habitat along rivers where suitable sandbars are rare or absent.","language":"English","publisher":"Waterbird Society","doi":"10.2307/1521432","issn":"07386028","usgsCitation":"Sidle, J.G., and Kirsch, E., 1993, Least tern and piping plover nesting at sand pits in Nebraska: Colonial Waterbirds, v. 16, no. 2, p. 139-148, https://doi.org/10.2307/1521432.","productDescription":"10 p.","startPage":"139","endPage":"148","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true},{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":198545,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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 \"}}]}","volume":"16","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6adfbf","contributors":{"authors":[{"text":"Sidle, John G.","contributorId":77099,"corporation":false,"usgs":true,"family":"Sidle","given":"John","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":312643,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kirsch, E.M.","contributorId":87486,"corporation":false,"usgs":true,"family":"Kirsch","given":"E.M.","email":"","affiliations":[],"preferred":false,"id":312644,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70018251,"text":"70018251 - 1993 - The role of water exchange between a stream channel and its hyporheic zone in nitrogen cycling at the terrestrial-aquatic interface","interactions":[],"lastModifiedDate":"2019-03-04T20:04:05","indexId":"70018251","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"The role of water exchange between a stream channel and its hyporheic zone in nitrogen cycling at the terrestrial-aquatic interface","docAbstract":"<p>The subsurface riparian zone was examined as an ecotone with two interfaces. Inland is a terrestrial boundary, where transport of water and dissolved solutes is toward the channel and controlled by watershed hydrology. Streamside is an aquatic boundary, where exchange of surface water and dissolved solutes is bi-directional and flux is strongly influenced by channel hydraulics. Streamside, bi-directional exchange of water was qualitatively defined using biologically conservative tracers in a third order stream. In several experiments, penetration of surface water extended 18 m inland. Travel time of water from the channel to bankside sediments was highly variable. Subsurface chemical gradients were indirectly related to the travel time. Sites with long travel times tended to be low in nitrate and DO (dissolved oxygen) but high in ammonium and DOC (dissolved organic carbon). Sites with short travel times tended to be high in nitrate and DO but low in ammonium and DOC. Ammonium concentration of interstitial water also was influenced by sorption-desorption processes that involved clay minerals in hyporheic sediments. Denitrification potential in subsurface sediments increased with distance from the channel, and was limited by nitrate at inland sites and by DO in the channel sediments. Conversely, nitrification potential decreased with distance from the channel, and was limited by DO at inland sites and by ammonium at channel locations. Advection of water and dissolved oxygen away from the channel resulted in an oxidized subsurface habitat equivalent to that previously defined as the hyporheic zone. The hyporheic zone is viewed as stream habitat because of its high proportion of surface water and the occurrence of channel organisms. Beyond the channel's hydrologic exchange zone, interstitial water is often chemically reduced. Interstitial water that has not previously entered the channel, groundwater, is viewed as a terrestrial component of the riparian ecotone. Thus, surface water habitats may extend under riparian vegetation, and terrestrial groundwater habitats may be found beneath the stream channel.&nbsp;</p>","language":"English","publisher":"Kluwer Academic Publishers","doi":"10.1007/BF00007177","issn":"00188158","usgsCitation":"Triska, F., Duff, J., and Avanzino, R., 1993, The role of water exchange between a stream channel and its hyporheic zone in nitrogen cycling at the terrestrial-aquatic interface: Hydrobiologia, v. 251, no. 1-3, p. 167-184, https://doi.org/10.1007/BF00007177.","productDescription":"18 p.","startPage":"167","endPage":"184","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":227411,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":205913,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00007177"}],"volume":"251","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bafa2e4b08c986b32493c","contributors":{"authors":[{"text":"Triska, F.J.","contributorId":69560,"corporation":false,"usgs":true,"family":"Triska","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":379011,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Duff, J.H.","contributorId":60377,"corporation":false,"usgs":true,"family":"Duff","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":379010,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Avanzino, R.J.","contributorId":37336,"corporation":false,"usgs":true,"family":"Avanzino","given":"R.J.","affiliations":[],"preferred":false,"id":379009,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70017828,"text":"70017828 - 1993 - A rainfall intensity-duration threshold for landslides in a humid- tropical environment, Puerto Rico","interactions":[],"lastModifiedDate":"2023-12-19T00:48:07.399269","indexId":"70017828","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1767,"text":"Geografiska Annaler, Series A","active":true,"publicationSubtype":{"id":10}},"title":"A rainfall intensity-duration threshold for landslides in a humid- tropical environment, Puerto Rico","docAbstract":"<p>Landslides are triggered by factors such as heavy rainfall, seismic activity, and construction on hillslopes. The leading cause of landslides in Puerto Rico is intense and/or prolonged rainfall. A rainfall threshold for rainfall-triggered landsliding is delimited by 256 storms that occurred between 1959 and 1991 in the central mountains of Puerto Rico, where mean annual rainfall is close to or in excess of 2,000 mm. Forty one of the 256 storms produced intense and/or prolonged rainfall that resulted in tens to hundreds of landslides. A threshold fitted to the lower boundary of the field defined by landslide-triggering storms is expressed as</p><p>I = 91.46 D<sup>-0.82</sup></p><p class=\"last\">where I is rainfall intensity in millimeters per hour, and D is duration in hours. Landslide-producing storms occurred at an average rate of 1.2 per year. In general the landslides triggered by short-duration, high-intensity rainfall events were mainly shallow soil slips and debris flows, while the long-duration, low-intensity rainfall produced larger, deeper debris avalanches and slumps. For storms that had durations of up to 10 h, landsliding did not occur until rainfall intensity was as much as three times as high as the rainfall intensity reported as sufficient to trigger landsliding in temperate regions. As storm durations approach 100 h, the rainfall conditions necessary to initiate landsliding in Puerto Rico converge with those defined for temperate regions. A comparison of the Puerto Rico threshold with rainfall data from other humid-tropical regions suggests that the threshold developed for Puerto Rico may be applicable to other similar environments throughout the world.</p>","language":"English","publisher":"Taylor and Francis","doi":"10.1080/04353676.1993.11880379","usgsCitation":"Larsen, M.C., and Simon, A., 1993, A rainfall intensity-duration threshold for landslides in a humid- tropical environment, Puerto Rico: Geografiska Annaler, Series A, v. 75 A, no. 1-2, p. 13-23, https://doi.org/10.1080/04353676.1993.11880379.","productDescription":"11 p.","startPage":"13","endPage":"23","numberOfPages":"11","costCenters":[],"links":[{"id":228728,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Puerto 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C.","contributorId":66287,"corporation":false,"usgs":true,"family":"Larsen","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":377678,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Simon, A.","contributorId":43501,"corporation":false,"usgs":true,"family":"Simon","given":"A.","email":"","affiliations":[],"preferred":false,"id":377677,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70184611,"text":"70184611 - 1993 - Population trends of Alaskan seabirds","interactions":[],"lastModifiedDate":"2017-03-10T13:06:23","indexId":"70184611","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2992,"text":"Pacific Seabird Group Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Population trends of Alaskan seabirds","docAbstract":"<p>Ornithology in Alaska formally began with the observations of Georg Wilhelm Steller during Vitus Bering's voyage of discovery in 1741. Steller's journal makes brief mention of various seabird species he encountered during his travels in the Gulf of Alaska and Aleutian Islands (Frost and Engel 1988). For more than 100 years following Steller, the Russian-American Company was active in commercial fur harvesting throughout southern coastal Alaska, but this period saw little contribution to a scientific understanding of the region's avifauna. With the purchase of Alaska by the United States in 1867, a period of American exploration began that included significant work by pioneering naturalists such as Dall (1873, 1874), Elliot (1881), Nelson (1883), and Turner (1885, 1886). While this activity established a comprehensive list and general knowledge of the distribution of seabird species occurring in Alaska, early observers provided no quantitative estimates of abundance for any colony or region.</p><p>The observations of Heath (1915) and Willett (1912, 1915, 1917) at two locations in southeastern Alaska are notable for including the first numerical estimates of any seabird populations for comparison with recent data. Willett's (1912, 1915) estimates of 13 species are given in Table 1 with results from a 1976 Survey at Forrester Island (DeGange et al. 1977) and a 1981 survey at St. Lazaria Island (Nelson et al 1982). In the aggregate, seabird numbers appeared to increase dramatically at both sites, but the differences may be largely artificial. Because Willett (1915) did not employ rigorous sampling methods, DeGange et al. (1977) surmised that he grossly underestimated the populations of burrowing species such as storm-petrels, Cassin's Auklets. and Rhinoceros Aulkets. Nelson et al. (1982) offered a similar interpretation of total storm-petrel numbers at St. Lazaria, but felt that a shift in the species ratio of Leach's and Fork-tailed Storm-Petrels had likely occurred. It seems reasonably certain that real changes in some of the open-nesters like Common Murres (down at Forrester Island, up at St. Lazaria) and Glaucous-winged and Herring Gulls (absent or down at both sites) have occurred since Willet's time.</p>","language":"English","publisher":"Pacific Seabird Group","usgsCitation":"Hatch, S.A., 1993, Population trends of Alaskan seabirds: Pacific Seabird Group Bulletin, v. 20, no. 1, p. 3-12.","productDescription":"10 p.","startPage":"3","endPage":"12","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":337355,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":337354,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://pacificseabirdgroup.org/psg-publications/pacific-seabirds/","text":"Journal's Website"}],"country":"United States","state":"Alaska","volume":"20","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58c3c950e4b0f37a93ee9b80","contributors":{"authors":[{"text":"Hatch, Scott A. 0000-0002-0064-8187 shatch@usgs.gov","orcid":"https://orcid.org/0000-0002-0064-8187","contributorId":2625,"corporation":false,"usgs":true,"family":"Hatch","given":"Scott","email":"shatch@usgs.gov","middleInitial":"A.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":682231,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70185141,"text":"70185141 - 1993 - Family stability in greater white-fronted geese","interactions":[],"lastModifiedDate":"2017-03-15T12:32:10","indexId":"70185141","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Family stability in greater white-fronted geese","docAbstract":"<p><span>I investigated the stability of parent-offspring bonds, and sibling-sibling bonds of neck-banded Greater White-fronted Geese (<i>Anser albifrons frontalis</i>) during winters (September-May) in California and southern Oregon from 1979 to 1989. Geese captured at feeding sites were more likely to be in social groups than those captured at roosting sites. Offspring remained associated with their parents longer than reported for other geese, as 69% of yearlings, 39% of two-year-olds, and 38% of three-year-olds and older were observed with their parents during winter. The proportion of time offspring spent with their parents declined as they grew older, being 76% for juveniles, 32% for yearlings, and 15% for two-year-olds and older. The prevalence of extended family groups was corroborated by counts of landing groups of unmarked geese. Sibling bonds also persisted after the first year of life, with 74%, 50%, and 39% of siblings maintaining some degree of social contact at ages of one, two and three years or older, respectively. Older offspring were more likely to associate with brood mates than with parents. Intensive observations ended when the oldest known-age geese were 34 months old. Incidental sightings in subsequent years revealed that some offspring up to eight years of age still associated with their parents and/or siblings. The benefits of maintaining long-term family bonds were not readily apparent, as there was no difference in the reproductive success of parents with and without attendant offspring, and yearlings that associated with parents were not more likely to survive than yearlings that did not associate with parents. However, older offspring and their parents may benefit by remaining together if extended families are more dominant and have better access to limited food and safe roost sites. Parents benefit if their fitness is enhanced due to nest defense provided by older offspring, and subadults probably benefit from staying with their parents by learning foraging and predator avoidance strategies from parents and older siblings.</span></p>","language":"English","publisher":"American Ornithological Society","doi":"10.2307/4088407","usgsCitation":"Ely, C.R., 1993, Family stability in greater white-fronted geese: The Auk, v. 110, no. 3, p. 425-235, https://doi.org/10.2307/4088407.","productDescription":"11 p.","startPage":"425","endPage":"235","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":479489,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2307/4088407","text":"Publisher Index Page"},{"id":337626,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California, Oregon","volume":"110","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58ca5301e4b0849ce97c875c","contributors":{"authors":[{"text":"Ely, Craig R. 0000-0003-4262-0892 cely@usgs.gov","orcid":"https://orcid.org/0000-0003-4262-0892","contributorId":3214,"corporation":false,"usgs":true,"family":"Ely","given":"Craig","email":"cely@usgs.gov","middleInitial":"R.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":684505,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70186568,"text":"70186568 - 1993 - Subsurface stratigraphic cross section of Lower and Upper Cretaceous rocks in the south­ eastern Wind River basin, Wyoming","interactions":[],"lastModifiedDate":"2017-04-05T13:50:17","indexId":"70186568","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Subsurface stratigraphic cross section of Lower and Upper Cretaceous rocks in the south­ eastern Wind River basin, Wyoming","docAbstract":"<p>No abstract available&nbsp;</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Wyoming Geological Association special symposium on oil and gas and other resources of the Wind River basin, Wyoming","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Wyo. Geol. Assoc","usgsCitation":"Finn, T., 1993, Subsurface stratigraphic cross section of Lower and Upper Cretaceous rocks in the south­ eastern Wind River basin, Wyoming, <i>in</i> Wyoming Geological Association special symposium on oil and gas and other resources of the Wind River basin, Wyoming, p. 91-94.","productDescription":"4 p.","startPage":"91","endPage":"94","costCenters":[],"links":[{"id":339237,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58e60279e4b09da6799ac6cf","contributors":{"authors":[{"text":"Finn, T.M. 0000-0001-6396-9351","orcid":"https://orcid.org/0000-0001-6396-9351","contributorId":65495,"corporation":false,"usgs":true,"family":"Finn","given":"T.M.","affiliations":[],"preferred":false,"id":689607,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70186569,"text":"70186569 - 1993 - Scourata bridge over the Weldon River, Iowa.","interactions":[],"lastModifiedDate":"2017-04-05T13:53:37","indexId":"70186569","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Scourata bridge over the Weldon River, Iowa.","docAbstract":"<p>No abstract available&nbsp;</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"1993 national conference on Hydraulic engineering","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"1993 national conference on Hydraulic engineering","language":"English","usgsCitation":"Fischer, E., 1993, Scourata bridge over the Weldon River, Iowa., <i>in</i> 1993 national conference on Hydraulic engineering, p. 1854-1859.","productDescription":"6 p. ","startPage":"1854","endPage":"1859","costCenters":[],"links":[{"id":339238,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58e60279e4b09da6799ac6cd","contributors":{"authors":[{"text":"Fischer, E.E.","contributorId":102480,"corporation":false,"usgs":true,"family":"Fischer","given":"E.E.","email":"","affiliations":[],"preferred":false,"id":689608,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70186573,"text":"70186573 - 1993 - Architecture of Fort Union paleovalley conglomerates related to aquifer potential in the western Wind River basin","interactions":[],"lastModifiedDate":"2017-04-05T14:14:51","indexId":"70186573","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Architecture of Fort Union paleovalley conglomerates related to aquifer potential in the western Wind River basin","docAbstract":"<p>No abstract available&nbsp;</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Wyoming Geological Association special symposium on oil and gas and other resources of the Wind River basin, Wyoming","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Wyo. Geol. Assoc. ","usgsCitation":"Flores, R.M., Clark, A., and Keighin, C.W., 1993, Architecture of Fort Union paleovalley conglomerates related to aquifer potential in the western Wind River basin, <i>in</i> Wyoming Geological Association special symposium on oil and gas and other resources of the Wind River basin, Wyoming, p. 143-162.","productDescription":"20 p. ","startPage":"143","endPage":"162","costCenters":[],"links":[{"id":339246,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58e60279e4b09da6799ac6cb","contributors":{"authors":[{"text":"Flores, R. M.","contributorId":106899,"corporation":false,"usgs":true,"family":"Flores","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":689638,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clark, A.C.","contributorId":25164,"corporation":false,"usgs":true,"family":"Clark","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":689639,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keighin, C. W.","contributorId":79887,"corporation":false,"usgs":true,"family":"Keighin","given":"C.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":689640,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70186578,"text":"70186578 - 1993 - Reser­voir anisotropy and facies stratigraphic framework in the Pale­ocene Fort Union Formation, western Wind River basin","interactions":[],"lastModifiedDate":"2017-04-05T14:19:30","indexId":"70186578","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Reser­voir anisotropy and facies stratigraphic framework in the Pale­ocene Fort Union Formation, western Wind River basin","docAbstract":"<p><span>Investigation of reservoir anisotropy and lithofacies stratigraphic framework in the Fort Union Formation in western Wind River Basin, Wyoming focused on excellent surface exposures in the Shotgun Butte, Eagle Point, and Shotgun Bench synclines, and in the Merriam anticline area of the Wind River Reservation (</span><a class=\"fgref\" href=\"http://archives.datapages.com/data/wga/data/055/055001/figs/wga0550121-fg1.htm\" data-mce-href=\"http://archives.datapages.com/data/wga/data/055/055001/figs/wga0550121-fg1.htm\">Fig. 1</a><span>). A complementary study was made of the formation in the Muddy Ridge and Pavillion gas fields, 8-10 mi to the southeast (</span><a class=\"fgref\" href=\"http://archives.datapages.com/data/wga/data/055/055001/figs/wga0550121-fg2.htm\" data-mce-href=\"http://archives.datapages.com/data/wga/data/055/055001/figs/wga0550121-fg2.htm\">Fig. 2</a><span>). The Fort Union Formation is as much as 4000 ft thick in these areas, but thins to approximately 1800 ft toward the northern flank of the Little Dome anticline 3 mi south of Merriam anticline (</span><a class=\"citeref\" href=\"http://archives.datapages.com/data/wga/data/055/055001/121_wga0550121.htm#bib11\" data-mce-href=\"http://archives.datapages.com/data/wga/data/055/055001/121_wga0550121.htm#bib11\">Keefer and Troyer, 1964</a><span>). The Fort Union Formation includes interbedded conglomerates, sandstones, siltstones, mudstones, coals, and carbonaceous shales (</span><a class=\"fgref\" href=\"http://archives.datapages.com/data/wga/data/055/055001/figs/wga0550121-fg3.htm\" data-mce-href=\"http://archives.datapages.com/data/wga/data/055/055001/figs/wga0550121-fg3.htm\">Fig. 3</a><span>). The lower member of the Fort Union Formation is dominated by conglomerates and sandstones. The overlying Shotgun Member of the Fort Union Formation mainly consists of siltstones, mudstones, and carbonaceous shales, and coals, and subordinate sandstones. Contact between the lower member and Shotgun Member is gradational and marked by a topographic change from the resistant conglomerates and sandstones of the lower member to less resistant fine-grained strata of the Shotgun Member. In addition, the Shotgun Member commonly contains coal and carbonaceous shale beds, both in the surface and subsurface (</span><a class=\"fgref\" href=\"http://archives.datapages.com/data/wga/data/055/055001/figs/wga0550121-fg4.htm\" data-mce-href=\"http://archives.datapages.com/data/wga/data/055/055001/figs/wga0550121-fg4.htm\">Fig. 4</a><span>). About 15-20 mi east of the study area the Waltman Shale Member of the Fort Union Formation pinches out at the contact between the lower member and Shotgun Member (Keefer and Johnson, this volume). The Waltman Shale Member, which consists of brown to gray silty and shaly claystones interbedded with sandstones, increases in thickness to as much as 3000 ft eastward into the basin center (Keefer, </span><a class=\"citeref\" href=\"http://archives.datapages.com/data/wga/data/055/055001/121_wga0550121.htm#bib9\" data-mce-href=\"http://archives.datapages.com/data/wga/data/055/055001/121_wga0550121.htm#bib9\">1961</a><span>; </span><a class=\"citeref\" href=\"http://archives.datapages.com/data/wga/data/055/055001/121_wga0550121.htm#bib10\" data-mce-href=\"http://archives.datapages.com/data/wga/data/055/055001/121_wga0550121.htm#bib10\">1965</a><span>). Thus, eastward, the Paleocene Fort Union Formation in ascending order, contains the lower member, Waltman Shale Member, and Shotgun Member. The Shotgun Member generally thins and interfingers with the Waltman Member.</span></p>","language":"English","publisher":"Wyoming Geological Association","usgsCitation":"Flores, R.M., and Keighin, C.W., 1993, Reser­voir anisotropy and facies stratigraphic framework in the Pale­ocene Fort Union Formation, western Wind River basin, p. 121-141.","productDescription":"21 p. ","startPage":"121","endPage":"141","costCenters":[],"links":[{"id":339247,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58e60279e4b09da6799ac6c9","contributors":{"authors":[{"text":"Flores, R. M.","contributorId":106899,"corporation":false,"usgs":true,"family":"Flores","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":689641,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Keighin, C. W.","contributorId":79887,"corporation":false,"usgs":true,"family":"Keighin","given":"C.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":689642,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70186591,"text":"70186591 - 1993 - Deuterium fractionation as water diffuses into silicic volcanic ash","interactions":[],"lastModifiedDate":"2017-04-05T15:59:28","indexId":"70186591","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Deuterium fractionation as water diffuses into silicic volcanic ash","docAbstract":"<p>No abstract available</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Climate change in continental isotopic records","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Wiley","doi":"10.1029/GM078p0321","usgsCitation":"Friedman, I., Gleason, J., Sheppard, R., and Gude, A., 1993, Deuterium fractionation as water diffuses into silicic volcanic ash, chap. <i>of</i> Climate change in continental isotopic records, p. 321-323, https://doi.org/10.1029/GM078p0321.","productDescription":"3 p.","startPage":"321","endPage":"323","costCenters":[],"links":[{"id":339268,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2013-04-02","publicationStatus":"PW","scienceBaseUri":"58e60279e4b09da6799ac6c5","contributors":{"authors":[{"text":"Friedman, Irving","contributorId":90664,"corporation":false,"usgs":true,"family":"Friedman","given":"Irving","email":"","affiliations":[],"preferred":false,"id":689668,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gleason, J.D.","contributorId":27072,"corporation":false,"usgs":true,"family":"Gleason","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":689669,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sheppard, R.A.","contributorId":22361,"corporation":false,"usgs":true,"family":"Sheppard","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":689670,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gude, A.J.","contributorId":53869,"corporation":false,"usgs":true,"family":"Gude","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":689671,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70017777,"text":"70017777 - 1993 - Deposition of Franciscan Complex cherts along the paleoequator and accretion to the American margin at tropical paleolatitudes","interactions":[],"lastModifiedDate":"2023-12-26T13:24:05.912076","indexId":"70017777","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Deposition of Franciscan Complex cherts along the paleoequator and accretion to the American margin at tropical paleolatitudes","docAbstract":"<div id=\"15008033\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>Red radiolarian cherts from three localities within the Franciscan subduction complex of northern California contain three components of remanent magnetization which are best isolated by progressive thermal demagnetization. The first component, usually removed by 300 °C, has an<span>&nbsp;</span><i>in situ</i><span>&nbsp;</span>direction similar to the present axial-dipole field and is probably a recently acquired thermoviscous overprint. A second component, generally removed between 300 and 630 °C, has constant (normal) polarity and direction within each section and is interpreted to have been acquired by low-temperature chemical alteration during subduction and accretion at the continental margin. The third component, isolated between ∼560 and 680 °C, has both normal and reversed polarities, passes a fold test, and is inferred to have been acquired during or soon after deposition. The available paleomagnetic, biostratigraphic, and geochemical data indicate deposition of these cherts along the paleoequator (0°-2°N or S paleolatitude) between Pliensbachian and Oxfordian time as the oceanic plate moved eastward, relative to North America, beneath the equatorial zone of high biologic productivity. Between Bathonian and Cenomanian time, the chert sequences apparently moved progressively away from the paleoequator (2°-15°N or S), and were soon after accreted to the American continental margin. Plate reconstruction models for the Farallon plate corroborate low-paleolatitude trajectories from ridge crest to subduction zone (for example, from 3°S to 11°N), and they imply subsequent northward translation of the Franciscan Complex (&gt; 4,000 km) by strike-slip faulting related to relative motions between the Farallon, Kula, Pacific, and North American plates.</p></div>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1993)105<0766:DOFCCA>2.3.CO;2","usgsCitation":"Hagstrum, J., and Murchey, B., 1993, Deposition of Franciscan Complex cherts along the paleoequator and accretion to the American margin at tropical paleolatitudes: Geological Society of America Bulletin, v. 105, no. 6, p. 766-778, https://doi.org/10.1130/0016-7606(1993)105<0766:DOFCCA>2.3.CO;2.","productDescription":"13 p.","startPage":"766","endPage":"778","numberOfPages":"13","costCenters":[],"links":[{"id":228816,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"105","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059feb7e4b0c8380cd4eeac","contributors":{"authors":[{"text":"Hagstrum, J.T.","contributorId":75922,"corporation":false,"usgs":true,"family":"Hagstrum","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":377540,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Murchey, B.L.","contributorId":93074,"corporation":false,"usgs":true,"family":"Murchey","given":"B.L.","email":"","affiliations":[],"preferred":false,"id":377541,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70186442,"text":"70186442 - 1993 - Implementation of biomarker-based studies","interactions":[],"lastModifiedDate":"2018-04-04T11:41:35","indexId":"70186442","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"3","title":"Implementation of biomarker-based studies","docAbstract":"<p><span>Biomarkers may be used to determine chemical exposure and effects in several important ways. These include (1) evaluation of new agricultural or industrial chemicals for effects, (2) screening of municipal or industrial effluents, (3) determining the geographic distribution of chemical effects in the environment and their changes over time, (4) determining the identity and source of chemical pollutants, and (5) establishing cause and effect linkages.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Biomarkers: Research and application in the assessment of environmental health: Proceedings of the NATO advanced research workshop on biological markers","largerWorkSubtype":{"id":15,"text":"Monograph"},"conferenceTitle":"NATO Advanced Research Workshop on Biological Markers","conferenceDate":"May 12-17,1991","conferenceLocation":"Texel, The Netherlands","language":"English","publisher":"Springer","doi":"10.1007/978-3-642-84631-1_3","isbn":"13:978-3-642-84631-1","usgsCitation":"Stegeman, J.J., Ballachey, B.E., Bickham, J., Hocker, B., Kennedy, S., Thompson, H., and Vethaak, A., 1993, Implementation of biomarker-based studies, chap. 3 <i>of</i> Biomarkers: Research and application in the assessment of environmental health: Proceedings of the NATO advanced research workshop on biological markers, v. 68, p. 31-48, https://doi.org/10.1007/978-3-642-84631-1_3.","productDescription":"28 p.","startPage":"31","endPage":"48","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":339155,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"68","publicComments":"This Conference Proceedings is Volume 68 of the NATO ASI Series","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58e4b0b5e4b09da6799977cf","contributors":{"editors":[{"text":"Peakall, David B.","contributorId":48263,"corporation":false,"usgs":false,"family":"Peakall","given":"David","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":688475,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Shugart, Lee R.","contributorId":190465,"corporation":false,"usgs":false,"family":"Shugart","given":"Lee","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":688476,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Stegeman, John J.","contributorId":55102,"corporation":false,"usgs":false,"family":"Stegeman","given":"John","email":"","middleInitial":"J.","affiliations":[{"id":6706,"text":"Woods Hole Oceanographic Institution,","active":true,"usgs":false}],"preferred":false,"id":688477,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ballachey, Brenda E. 0000-0003-1855-9171 bballachey@usgs.gov","orcid":"https://orcid.org/0000-0003-1855-9171","contributorId":2966,"corporation":false,"usgs":true,"family":"Ballachey","given":"Brenda","email":"bballachey@usgs.gov","middleInitial":"E.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":688478,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bickham, J.","contributorId":190467,"corporation":false,"usgs":false,"family":"Bickham","given":"J.","affiliations":[],"preferred":false,"id":688479,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hocker, B.","contributorId":190466,"corporation":false,"usgs":false,"family":"Hocker","given":"B.","email":"","affiliations":[],"preferred":false,"id":688480,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kennedy, S.","contributorId":39908,"corporation":false,"usgs":true,"family":"Kennedy","given":"S.","affiliations":[],"preferred":false,"id":688481,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thompson, H.","contributorId":190468,"corporation":false,"usgs":false,"family":"Thompson","given":"H.","email":"","affiliations":[],"preferred":false,"id":688482,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Vethaak, A.D.","contributorId":190469,"corporation":false,"usgs":false,"family":"Vethaak","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":688483,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70186252,"text":"70186252 - 1993 - Teleseismic tomography; lithospheric structure of the San Andreas Fault system in northern and central California","interactions":[],"lastModifiedDate":"2024-10-30T15:38:39.293665","indexId":"70186252","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Teleseismic tomography; lithospheric structure of the San Andreas Fault system in northern and central California","docAbstract":"<p>No abstract available&nbsp;</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Seismic tomography: Theory and practice","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Chapman & Hall","usgsCitation":"Benz, H., and Zandt, G., 1993, Teleseismic tomography; lithospheric structure of the San Andreas Fault system in northern and central California, chap. <i>of</i> Seismic tomography: Theory and practice, p. 440-465.","productDescription":"16 p.","startPage":"440","endPage":"465","costCenters":[],"links":[{"id":339022,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58e35f92e4b09da67997ed24","contributors":{"editors":[{"text":"Iyer, H. M.","contributorId":17997,"corporation":false,"usgs":true,"family":"Iyer","given":"H.","middleInitial":"M.","affiliations":[],"preferred":false,"id":688022,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Hirahara, Kazuro","contributorId":190681,"corporation":false,"usgs":false,"family":"Hirahara","given":"Kazuro","email":"","affiliations":[],"preferred":false,"id":917461,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Benz, H.M.","contributorId":21594,"corporation":false,"usgs":true,"family":"Benz","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":688020,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zandt, George","contributorId":65490,"corporation":false,"usgs":true,"family":"Zandt","given":"George","affiliations":[],"preferred":false,"id":688021,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70186912,"text":"70186912 - 1993 - Gravity and magnetic studies of the Wind River Reservation, Wyoming","interactions":[],"lastModifiedDate":"2017-04-13T18:45:55","indexId":"70186912","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Gravity and magnetic studies of the Wind River Reservation, Wyoming","docAbstract":"<p>No abstract available</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Special symposium on oil and gas and other resources of the Wind River basin, Wyoming","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Wyo. Geol. Assoc.","usgsCitation":"Kucks, R., 1993, Gravity and magnetic studies of the Wind River Reservation, Wyoming, <i>in</i> Special symposium on oil and gas and other resources of the Wind River basin, Wyoming, p. 377-386.","productDescription":"10 p. ","startPage":"377","endPage":"386","costCenters":[],"links":[{"id":339715,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58f08e65e4b06911a29fa87a","contributors":{"authors":[{"text":"Kucks, R.P.","contributorId":53758,"corporation":false,"usgs":true,"family":"Kucks","given":"R.P.","affiliations":[],"preferred":false,"id":690981,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70186920,"text":"70186920 - 1993 - Sensitivity of crustal deformation instruments to changes insecular rate","interactions":[],"lastModifiedDate":"2017-04-13T21:04:58","indexId":"70186920","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Sensitivity of crustal deformation instruments to changes insecular rate","docAbstract":"<p><span>A variety of instruments (including borehole strainmeters, water wells, creepmeters, laser ranging and differential magnetometers) are used to monitor crustal deformation in areas that are prone to geologic hazards such as earthquakes and volcanic eruptions. In monitoring the deformation, one typically examines the data for either a change in rate, or a simple offset in the record. However, one needs to place a statistical confidence level that the detected signal differs from the background “noise”. Calculation of the statistical confidence level may be done using the formalism of the </span><i>matched filter</i><span>, whose output is the signal-to-noise ratio, ρ. Two ingredients are needed to form a matched filter: 1) The power density spectrum of the instrument and 2) the functional form of the signal that we desire to detect. Using the available crustal deformation data from the Parkfield, California network, the background noise for individual instruments as a function of frequency, f, is estimated using the traditional method of the power density spectra. Except for two-color laser distance-ranging data, the power spectra for most of the instruments have a frequency dependence of f</span><sup>−n</sup><span> where 2≤n≤3. The confidence level with which a hypothesized signal is present is determined directly from the signal-to-noise ratio, with the numerator being a function of the signal and the denominator being a function of the power spectrum. Using a creepmeter as an example, a 0.04-mm change occurring over 1 hour, a 0.06-mm occurring over 10 hours, or 0.20-mm over 100 hours are all signals for which ρ=2 and therefore have only a 5% confidence that these signals could be background noise.</span></p>","language":"English","publisher":"Wiley","doi":"10.1029/92GL02718 ","usgsCitation":"Langbein, J.O., Quilty, E., and Breckenridge, K., 1993, Sensitivity of crustal deformation instruments to changes insecular rate: Geophysical Research Letters, v. 20, no. 2, p. 85-88, https://doi.org/10.1029/92GL02718 .","productDescription":"4 p. ","startPage":"85","endPage":"88","costCenters":[],"links":[{"id":339723,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"2","noUsgsAuthors":false,"publicationDate":"2012-12-07","publicationStatus":"PW","scienceBaseUri":"58f08e64e4b06911a29fa876","contributors":{"authors":[{"text":"Langbein, John O.","contributorId":72438,"corporation":false,"usgs":true,"family":"Langbein","given":"John","middleInitial":"O.","affiliations":[],"preferred":false,"id":690998,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Quilty, Eddie","contributorId":190885,"corporation":false,"usgs":false,"family":"Quilty","given":"Eddie","email":"","affiliations":[],"preferred":false,"id":690999,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Breckenridge, Katherine","contributorId":190888,"corporation":false,"usgs":false,"family":"Breckenridge","given":"Katherine","email":"","affiliations":[],"preferred":false,"id":691000,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70185346,"text":"70185346 - 1993 - Status of Pacific Black Brant <i>Branta bernicla nigricans</i> on Wrangel Island, Russian Federation","interactions":[],"lastModifiedDate":"2024-04-01T22:11:52.251704","indexId":"70185346","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3764,"text":"Wildfowl","onlineIssn":"2052-6458","printIssn":"0954-6324","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Status of Pacific Black Brant Branta bernicla nigricans on Wrangel Island, Russian Federation","title":"Status of Pacific Black Brant <i>Branta bernicla nigricans</i> on Wrangel Island, Russian Federation","docAbstract":"<div>Abundance, distribution, and habitat selection of breeding and moulting Pacific Black Brant were studied on Wrangel Island in 1989-91. &nbsp;Two nests and &lt;10 family flocks of Brant were found during ground searches in previously known nesting areas. &nbsp;The breeding population has declined from 1000-2000 pairs to probably &lt;100 pairs. &nbsp;An estimated 4200 &nbsp;50 (Cl) moulting Brant were counted during the first aerial and photographic survey of the island in 1990. &nbsp;This population includes moult migrants from Alaska and mainland Russia. &nbsp;Most (67%) of the moulting flocks were concentrated in freshwater lakes and usually within 2 km of the coast. &nbsp;Lakes with low relief shorelines and adjacent preferred grasses were important habitats used by moulting birds. &nbsp;Breeding and moulting populations of Wrangel Island Brant are dependent on Izembek Lagoon Alaska, in autumn and disperse over the rest of eastern Pacific Flyway in winter and spring.</div>","language":"English","publisher":"Wildfowl & Wetlands Trust","usgsCitation":"Ward, D.H., Derksen, D.V., Kharitonov, S., Stishov, M., and Baranyuk, V.V., 1993, Status of Pacific Black Brant <i>Branta bernicla nigricans</i> on Wrangel Island, Russian Federation: Wildfowl, v. 44, p. 39-48.","productDescription":"7 p.","startPage":"39","endPage":"48","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":337897,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://wildfowl.wwt.org.uk/index.php/wildfowl/article/view/915"},{"id":337898,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Russia","otherGeospatial":"Wrangel Island","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -181.86767578125,\n              70.64905077016431\n            ],\n            [\n              -177.1435546875,\n              70.64905077016431\n            ],\n            [\n              -177.1435546875,\n              71.7085409138521\n            ],\n            [\n              -181.86767578125,\n              71.7085409138521\n            ],\n            [\n              -181.86767578125,\n              70.64905077016431\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"44","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58d0ea1fe4b0236b68f673ab","contributors":{"authors":[{"text":"Ward, David H. 0000-0002-5242-2526 dward@usgs.gov","orcid":"https://orcid.org/0000-0002-5242-2526","contributorId":3247,"corporation":false,"usgs":true,"family":"Ward","given":"David","email":"dward@usgs.gov","middleInitial":"H.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":685260,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Derksen, Dirk V. dderksen@usgs.gov","contributorId":2269,"corporation":false,"usgs":true,"family":"Derksen","given":"Dirk","email":"dderksen@usgs.gov","middleInitial":"V.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":685261,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kharitonov, Sergei","contributorId":70672,"corporation":false,"usgs":true,"family":"Kharitonov","given":"Sergei","email":"","affiliations":[],"preferred":false,"id":685262,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stishov, Mikhail","contributorId":189586,"corporation":false,"usgs":false,"family":"Stishov","given":"Mikhail","email":"","affiliations":[],"preferred":false,"id":685263,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Baranyuk, Vasily V.","contributorId":75482,"corporation":false,"usgs":false,"family":"Baranyuk","given":"Vasily","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":685264,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70039702,"text":"ofr1994007 - 1993 - U.S.-Soviet Collaborative Geological and Geophysical Survey of the Mid-Atlantic Ridge near 31 degrees N, the Petrov Fracture Zone","interactions":[],"lastModifiedDate":"2018-06-18T11:43:11","indexId":"ofr1994007","displayToPublicDate":"1992-12-01T13:51:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1994-007","title":"U.S.-Soviet Collaborative Geological and Geophysical Survey of the Mid-Atlantic Ridge near 31 degrees N, the Petrov Fracture Zone","docAbstract":"<h1>Introduction</h1><p>In February 1989, the first formal U.S.-Soviet joint marine geologic-geophysical study in 10 years was undertaken along the Mid-Atlantic Ridge near 31°N on the 12th Cruise of the RN Akademik Boris Petrov of the Vernadsky Institute of Geochemistry (USSR Academy of Sciences, Moscow). This survey was initiated as part of the U.S.S.R.-U.S. cooperative research project \"Mid-Atlantic Ridge Crest Processes\" within the framework of the Soviet-U.S. bilateral Ocean Studies Agreement (Ostenso, 1989). U.S. scientists from the U.S. Geological Survey, University of Houston, and Woods Hole Oceanographic Institution participated in this program with Soviet scientists from the Vernadsky Institute of Geochemistry, Institute of Geology, and Schmidt Institute of Physics of the Earth, all institutes of the USSR Academy of Sciences in Moscow (Appendix 1 ). The ship departed from Rotterdam, Nederlands on February 2, 1989 and docked in Bridgetown, Barbados on February 28, 1989. A log of the ship's schedule during this cruise is given in Appendix 2. This study involved a limited multibeam-bathymetric, gravity, magnetic, and seismic- reflection survey. and dredging program of a short-offset transform fault named the Petrov Fracture Zone near 31 °N, located just north of the Atlantis Fracture Zone on the Mid Atlantic Ridge. A site survey at King's Trough in the northeast Atlantic for a MIR submersible program in June 1989 was originally planned as part of this program, but bad weather and the resultant poor quality geophysical data forced this work to be terminated after only one day. Nearly 6000 km of geophysical profile data and 13 dredge stations were completed during this cruise. A description of the geophysical systems aboard the RN Petrov is given in Appendices 3 and 4. All geophysical data were recorded on magnetic tape in data formats described in Appendix 5. Dredge locales and description summaries only are presented in Appendix 6. Detailed descriptions of dredge samples will be presented elsewhere. Operational plan for the studies on this cruise was developed as a cooperative effort between U.S. and Soviet scientists, who established jointly the basic objectives of the study. The U.S. scientists were given the responsibility for developing the detailed survey and dredge sampling plans. Dredge operations and basic geophysical systems operations were the responsibility of the Soviet personnel.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Woods Hole, MA","doi":"10.3133/ofr1994007","usgsCitation":"Klitgord, K.D., Dmitriev, L.V., Casey, J.F., Silantiev, S., and Johnson, K., 1993, U.S.-Soviet Collaborative Geological and Geophysical Survey of the Mid-Atlantic Ridge near 31 degrees N, the Petrov Fracture Zone: U.S. Geological Survey Open-File Report 1994-007, 23 p., https://doi.org/10.3133/ofr1994007.","productDescription":"23 p.","costCenters":[],"links":[{"id":259878,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":259850,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1994/0007/ofr19947.pdf","text":"Report","size":"1.08 MB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 1994-7"}],"contact":"<p><a href=\"https://woodshole.er.usgs.gov/\" data-mce-href=\"https://woodshole.er.usgs.gov/\">Coastal and Marine Geology Program</a><br> U.S. Geological Survey<br> 384 Woods Hole Road<br> Woods Hole, MA 02543</p>","tableOfContents":"<ul><li>Introduction</li><li>Regional GeoTectonic Framework</li><li>Scientific Objectives</li><li>Geophysical Investigations</li><li>Geologic Investigations</li><li>Summary</li><li>References</li></ul>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbb32e4b08c986b328562","contributors":{"authors":[{"text":"Klitgord, Kim D.","contributorId":57715,"corporation":false,"usgs":true,"family":"Klitgord","given":"Kim","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":466767,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dmitriev, Leonard V.","contributorId":63664,"corporation":false,"usgs":true,"family":"Dmitriev","given":"Leonard","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":466768,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Casey, John F.","contributorId":29550,"corporation":false,"usgs":true,"family":"Casey","given":"John","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":466765,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Silantiev, Sergei","contributorId":49647,"corporation":false,"usgs":true,"family":"Silantiev","given":"Sergei","email":"","affiliations":[],"preferred":false,"id":466766,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Johnson, Kevin","contributorId":83287,"corporation":false,"usgs":true,"family":"Johnson","given":"Kevin","affiliations":[],"preferred":false,"id":466769,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":1008477,"text":"1008477 - 1993 - Factors influencing the distribution of blackchin tilapia Sarotherodon melanotherodon (Osteichthyes: Cichlidae) in the Indian River system, Florida","interactions":[],"lastModifiedDate":"2025-05-22T16:08:11.806825","indexId":"1008477","displayToPublicDate":"1992-10-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2893,"text":"Northeast Gulf Science","active":true,"publicationSubtype":{"id":10}},"title":"Factors influencing the distribution of blackchin tilapia Sarotherodon melanotherodon (Osteichthyes: Cichlidae) in the Indian River system, Florida","docAbstract":"<p><span>The blackchin tilapia, S</span><i>arotherodon melanotheron</i><span>, was first collected from the Indian River system, in Brevard County, Florida, in 1980. Since its introduction, this species has expanded its range northward along the coast approximately 37 km, to just north of Whites Point, Brevard County, and southward about 68 km to Vero Beach, Indian River County. Laboratory studies on salinity tolerance indicate an ability of this species to tolerate hypersaline concentrations of at least 100 ppt, and to reproduce in salinities of up to 35 ppt. The northern distribution of blackchin tilapia is almost certainly limited by cold temperature; however, the potential exists for extensive coastal, and possibly inland, invasion south of its present limits.</span></p>","language":"English","publisher":"University of Southern Mississippi","doi":"10.18785/negs.1202.04","usgsCitation":"Jennings, D.P., and Williams, J., 1993, Factors influencing the distribution of blackchin tilapia Sarotherodon melanotherodon (Osteichthyes: Cichlidae) in the Indian River system, Florida: Northeast Gulf Science, v. 12, no. 2, p. 111-117, https://doi.org/10.18785/negs.1202.04.","productDescription":"7 p.","startPage":"111","endPage":"117","costCenters":[{"id":275,"text":"Florida Integrated Science Center","active":false,"usgs":true}],"links":[{"id":487350,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.18785/negs.1202.04","text":"Publisher Index Page"},{"id":132220,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Indian River system","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -80.95074748106519,\n              28.66200069590559\n            ],\n            [\n              -80.51430917668308,\n              27.24696064028639\n            ],\n            [\n              -80.1552477420192,\n              27.364723231534185\n            ],\n            [\n              -80.66349214140864,\n              28.69107843762309\n            ],\n            [\n              -80.95074748106519,\n              28.66200069590559\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"12","issue":"2","noUsgsAuthors":false,"publicationDate":"1992-10-01","publicationStatus":"PW","scienceBaseUri":"4f4e4a01e4b07f02db5f7ee8","contributors":{"authors":[{"text":"Jennings, Dawn P.","contributorId":107659,"corporation":false,"usgs":true,"family":"Jennings","given":"Dawn","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":317895,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, J.D.","contributorId":74701,"corporation":false,"usgs":true,"family":"Williams","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":317894,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70180658,"text":"70180658 - 1993 - Modeling the response of native steelhead to hatchery supplementation programs in an Idaho River","interactions":[],"lastModifiedDate":"2017-01-31T11:50:29","indexId":"70180658","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Modeling the response of native steelhead to hatchery supplementation programs in an Idaho River","docAbstract":"<p><span>A life history model was used to predict the response of native steelhead </span><i>Oncorhynchus mykiss</i><span> in the Lochsa River, Idaho, to long-term supplementation with hatchery fry and smolts. The four key factors affecting the response of the native fish to a stocking program were (1) the number of native spawners, (2) the number of stocked fish, (3) the number and fitness of progeny from stocked fish, and (4) the amount of mating between hatchery and native fish. Long-term stocking of fry or smolts led to the extinction of native fish in some scenarios. The model can be used to help assess the risks and benefits of proposed stocking programs.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1577/1548-8675(1992)012<0062:MTRONS>2.3.CO;2","usgsCitation":"Byrne, A., Bjornn, T., and McIntyre, J., 1993, Modeling the response of native steelhead to hatchery supplementation programs in an Idaho River: North American Journal of Fisheries Management, v. 12, no. 1, p. 62-78, https://doi.org/10.1577/1548-8675(1992)012<0062:MTRONS>2.3.CO;2.","productDescription":"17 p. ","startPage":"62","endPage":"78","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":334440,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5891b0bbe4b072a7ac129968","contributors":{"authors":[{"text":"Byrne, Alan","contributorId":178985,"corporation":false,"usgs":false,"family":"Byrne","given":"Alan","email":"","affiliations":[],"preferred":false,"id":661902,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bjornn, T.C.","contributorId":9033,"corporation":false,"usgs":true,"family":"Bjornn","given":"T.C.","affiliations":[],"preferred":false,"id":661903,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McIntyre, J.D.","contributorId":27006,"corporation":false,"usgs":true,"family":"McIntyre","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":661904,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":96525,"text":"96525 - 1993 - Answering questions about desert tortoises: a guide for people who work with the public","interactions":[],"lastModifiedDate":"2012-07-06T01:01:41","indexId":"96525","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":4,"text":"Book"},"title":"Answering questions about desert tortoises: a guide for people who work with the public","docAbstract":"No abstract available at this time","language":"English","publisher":"U.S. Bureau of Land Management","publisherLocation":"Riverside, CA","usgsCitation":"Berry, K., 1993, Answering questions about desert tortoises: a guide for people who work with the public, iii, 43 p.","productDescription":"iii, 43 p.","numberOfPages":"56","costCenters":[],"links":[{"id":128156,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":258203,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://archive.org/details/answeringquestio00berr","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67b5fb","contributors":{"authors":[{"text":"Berry, K.H.","contributorId":17934,"corporation":false,"usgs":true,"family":"Berry","given":"K.H.","email":"","affiliations":[],"preferred":false,"id":299758,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70242904,"text":"70242904 - 1993 - Deep hydraulic fracturing stress measurements in the KTB (Germany) and Cajon Pass (USA) Scientific Drilling Projects: A summary","interactions":[],"lastModifiedDate":"2023-04-21T16:51:57.250369","indexId":"70242904","displayToPublicDate":"1991-09-16T11:15:40","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Deep hydraulic fracturing stress measurements in the KTB (Germany) and Cajon Pass (USA) Scientific Drilling Projects: A summary","docAbstract":"<p>The determination of in situ stresses along deep vertical profiles was declared a key issue for two scientific deep drilling projects:</p><ul class=\"alpha-lower\"><li><p>the German Continental Deep Drilling Project (KTB) situated in northeast Bavaria in an area of complex variscian thrust tectonics and</p></li><li><p>the CAJON PASS Project, located only about 4 km from the San Andreas Fault Zone In southern California.</p></li></ul><p>In the KTB project 7 successful hydrofrac stress measurements could be completed in a 4 km deep pilot hole between 0.8 to 3.0 km. At the Cajon Pass site a series of 23 hydrofrac stress measurements was performed in 2 wells between 0.9 to 3.5 km.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"7th ISRM Congress","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"7th ISRM Congress","conferenceDate":"Aachen, Germany","conferenceLocation":"September 16-20, 1991","language":"English","publisher":"International Society for Rock Mechanics","usgsCitation":"Baumgartner, J., Healy, J.H., Rummel, F.H., and Zoback, M.D., 1993, Deep hydraulic fracturing stress measurements in the KTB (Germany) and Cajon Pass (USA) Scientific Drilling Projects: A summary, <i>in</i> 7th ISRM Congress, v. 3, September 16-20, 1991, Aachen, Germany, p. 1685-1690.","productDescription":"6 p.","startPage":"1685","endPage":"1690","costCenters":[],"links":[{"id":416130,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":416121,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://onepetro.org/isrmcongress/proceedings-abstract/CONGRESS91/All-CONGRESS91/ISRM-7CONGRESS-1991-303/167106"}],"country":"Germany, United States","state":"Bavaria, California","otherGeospatial":"Cajon Pass","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -117.59418589093974,\n              34.3872143359614\n            ],\n            [\n              -117.59418589093974,\n              34.19144816225324\n            ],\n            [\n              -117.32241602977236,\n              34.19144816225324\n            ],\n            [\n              -117.32241602977236,\n              34.3872143359614\n            ],\n            [\n              -117.59418589093974,\n              34.3872143359614\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              9.814609014145901,\n              50.217556505777594\n            ],\n            [\n              9.814609014145901,\n              49.09068762593432\n            ],\n            [\n              12.705253798878886,\n              49.09068762593432\n            ],\n            [\n              12.705253798878886,\n              50.217556505777594\n            ],\n            [\n              9.814609014145901,\n              50.217556505777594\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Baumgartner, J.","contributorId":304339,"corporation":false,"usgs":false,"family":"Baumgartner","given":"J.","email":"","affiliations":[],"preferred":false,"id":870171,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Healy, J. H.","contributorId":48968,"corporation":false,"usgs":true,"family":"Healy","given":"J.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":870172,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rummel, F. H.","contributorId":304340,"corporation":false,"usgs":false,"family":"Rummel","given":"F.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":870173,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zoback, Mark D.","contributorId":80275,"corporation":false,"usgs":true,"family":"Zoback","given":"Mark","middleInitial":"D.","affiliations":[],"preferred":false,"id":870174,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70127925,"text":"70127925 - 1993 - Precipitation-chemistry measurements from the California Acid Deposition Monitoring Program, 1985-1990","interactions":[],"lastModifiedDate":"2014-10-02T14:12:54","indexId":"70127925","displayToPublicDate":"1933-08-01T14:11:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":924,"text":"Atmospheric Environment","active":true,"publicationSubtype":{"id":10}},"title":"Precipitation-chemistry measurements from the California Acid Deposition Monitoring Program, 1985-1990","docAbstract":"The configuration of the California Acid Deposition Monitoring Program (CADMP) precipitation network is described and quality assurance results summarized. Comparison of CADMP and the National Acid Deposition Program/National Trends Network (NADP/NTN) data at four parallel sites indicated that mean depth-weighted differences were less than 3 μeq ℓ<sup>−1</sup> for all ions, being statistically significant for ammonium, sulfate and hydrogen ion. These apparently small differences were 15–30% of the mean concentrations of ammonium, sulfate and hydrogen ion. Mean depth-weighted concentrations and mass deposition rates for the period 1985–1990 are summarized; the latter were highest either where concentrations or precipitation depths were relatively high.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Atmospheric Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Pergamon Press","publisherLocation":"Oxford","doi":"10.1016/0960-1686(93)90239-U","usgsCitation":"Blanchard, C.L., and Tonnessen, K.A., 1993, Precipitation-chemistry measurements from the California Acid Deposition Monitoring Program, 1985-1990: Atmospheric Environment, v. 27, no. 11, p. 1755-1763, https://doi.org/10.1016/0960-1686(93)90239-U.","productDescription":"9 p.","startPage":"1755","endPage":"1763","numberOfPages":"9","costCenters":[],"links":[{"id":294869,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":294868,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0960-1686(93)90239-U"}],"volume":"27","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"542e6979e4b092f17df5a9db","contributors":{"authors":[{"text":"Blanchard, Charles L.","contributorId":44094,"corporation":false,"usgs":true,"family":"Blanchard","given":"Charles","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":502696,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tonnessen, Kathy A.","contributorId":9588,"corporation":false,"usgs":true,"family":"Tonnessen","given":"Kathy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":502695,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":30038,"text":"wri914200 - 1992 - Effects of horizontal velocity variations on ultrasonic velocity measurements in open channels","interactions":[],"lastModifiedDate":"2021-10-14T12:05:42.329754","indexId":"wri914200","displayToPublicDate":"2021-10-13T11:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"91-4200","displayTitle":"Effects of Horizontal Velocity Variations on Ultrasonic Velocity Measurements in Open Channels","title":"Effects of horizontal velocity variations on ultrasonic velocity measurements in open channels","docAbstract":"Use of an ultrasonic velocity meter to determine discharge in open channels involves measuring the velocity in a line between transducers in the stream and relating that velocity to the average velocity in the stream. The standard method of calculating average velocity in the channel assumes that the velocity profile in the channel can be represented by the one-dimensional von Karman universal velocity profile. However, the velocity profile can be described by a two-dimensional equation that accounts for the horizontal velocity variations induced by the channel sides.\r\n\r\nAn equation to calculate average velocity accounts for the two-dimensional variations in velocity within a stream. The use of this new equation to calculate average velocity was compared to the standard method in theoretical trapezoidal cross sections and in the L-31N and Snapper Creek Extension Canals near Miami, Florida. These comparisons indicate that the two-dimensional variations have the most significant effect in narrow, deep channels. Also, the two-dimensional effects may be significant in some field situations and need to be considered when determining average velocity and discharge with an ultrasonic velocity meter.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri914200","usgsCitation":"Swain, E., 1992, Effects of horizontal velocity variations on ultrasonic velocity measurements in open channels: U.S. Geological Survey Water-Resources Investigations Report 91-4200, v, 15 p., https://doi.org/10.3133/wri914200.","productDescription":"v, 15 p.","costCenters":[{"id":27821,"text":"Caribbean-Florida Water Science Center","active":true,"usgs":true}],"links":[{"id":58841,"rank":299,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1991/4200/report.pdf","text":"Report","size":"2.09 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":122633,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1991/4200/report-thumb.jpg"}],"contact":"<p><a href=\"https://www.usgs.gov/centers/car-fl-water\" data-mce-href=\"https://www.usgs.gov/centers/car-fl-water\">Caribbean-Florida Water Science Center</a><br>U.S. Geological Survey<br>3321 College Avenue<br>Davie, FL 33314</p><p><a href=\"../contact\" data-mce-href=\"../contact\">Contact Pubs Warehouse</a></p>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a29e4b07f02db611ea9","contributors":{"authors":[{"text":"Swain, E.D. 0000-0001-7168-708X","orcid":"https://orcid.org/0000-0001-7168-708X","contributorId":29007,"corporation":false,"usgs":true,"family":"Swain","given":"E.D.","affiliations":[],"preferred":false,"id":202576,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
]}