{"pageNumber":"4585","pageRowStart":"114600","pageSize":"25","recordCount":184617,"records":[{"id":70186930,"text":"70186930 - 1989 - A modular water shed modeling and data management system","interactions":[],"lastModifiedDate":"2017-04-14T14:29:00","indexId":"70186930","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"A modular water shed modeling and data management system","docAbstract":"No abstract available
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"United States/People's Republic of China flood forecasting sympo sium/workshop proceedings","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"U.S. National Oceanic and Atmospheric Administration ","usgsCitation":"Leavesley, G., and Stannard, L., 1989, A modular water shed modeling and data management system, in United States/People's Republic of China flood forecasting sympo sium/workshop proceedings, p. 71-95.","productDescription":"25 p. ","startPage":"71","endPage":"95","costCenters":[],"links":[{"id":339742,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58f1e0cfe4b08144348b7ea7","contributors":{"authors":[{"text":"Leavesley, G.H.","contributorId":93895,"corporation":false,"usgs":true,"family":"Leavesley","given":"G.H.","email":"","affiliations":[],"preferred":false,"id":691061,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stannard, L.G.","contributorId":16891,"corporation":false,"usgs":true,"family":"Stannard","given":"L.G.","email":"","affiliations":[],"preferred":false,"id":691062,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015099,"text":"70015099 - 1989 - A satellite-based digital data system for low-frequency geophysical data","interactions":[],"lastModifiedDate":"2023-10-27T23:33:15.685231","indexId":"70015099","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"A satellite-based digital data system for low-frequency geophysical data","docAbstract":"A reliable method for collection, display, and analysis of low-frequency geophysical data from isolated sites, which can be throughout North and South America and the Pacific Rim, has been developed for use with the Geostationary Operational Environmental Satellite (GOES) system. Geophysical data primarily intended for earthquake hazard and crustal deformation monitoring are digitized with either 12-bit or 16-bit resolution and transmitted every 10 min through a satellite link to a bank of UNIX-based computers in Menlo Park, California. There the data are available for analysis and display within a few seconds of their transmit time. This system provides real-time monitoring of crustal deformation parameters such as tilt, strain, fault displacement, local magnetic field, crustal geochemistry, and water levels, as well as meteorological and other parameters, along faults in California and Alaska, and in volcanic regions in the western United States, Rabaul, and other locations in the New Britain region of the South Pacific. Various mathematical, statistical, and graphical algorithms process the incoming data to detect changes in crustal deformation and fault slip that may indicate the first stages of catastrophic fault failure. Alert trigger levels based on physical models, signal resolution, and previous history have been defined for particular instrument types. Computer-driven remote paging and mail systems are used to notify appropriate personnel when alarm status is reached. The system supports continuous historical records of low-frequency geophysical data, software for extensive analysis of these data, and programs for modeling fault rupture with and without seismic radiation, as well as providing an environment for real-time attempts at earthquake prediction.
","language":"English","publisher":"Seismological Society of America","doi":"10.1785/BSSA0790010189","usgsCitation":"Silverman, S., Mortensen, C., and Johnston, M., 1989, A satellite-based digital data system for low-frequency geophysical data: Bulletin of the Seismological Society of America, v. 79, no. 1, p. 189-198, https://doi.org/10.1785/BSSA0790010189.","productDescription":"10 p.","startPage":"189","endPage":"198","numberOfPages":"10","costCenters":[],"links":[{"id":223964,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"79","issue":"1","noUsgsAuthors":false,"publicationDate":"1989-02-01","publicationStatus":"PW","scienceBaseUri":"5059e579e4b0c8380cd46d55","contributors":{"authors":[{"text":"Silverman, S.","contributorId":17231,"corporation":false,"usgs":true,"family":"Silverman","given":"S.","email":"","affiliations":[],"preferred":false,"id":370068,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mortensen, C.","contributorId":67938,"corporation":false,"usgs":true,"family":"Mortensen","given":"C.","email":"","affiliations":[],"preferred":false,"id":370069,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnston, M.","contributorId":88091,"corporation":false,"usgs":true,"family":"Johnston","given":"M.","email":"","affiliations":[],"preferred":false,"id":370070,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70175235,"text":"70175235 - 1989 - Climate variability in an estuary: Effects of riverflow on San Francisco Bay","interactions":[],"lastModifiedDate":"2018-11-19T11:15:10","indexId":"70175235","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Climate variability in an estuary: Effects of riverflow on San Francisco Bay","docAbstract":"\n
A simple conceptual model of estuarine variability in the context of climate forcing has been formulated using up to 65 years of estimated mean-monthly delta flow, the cumulative freshwater flow to San Francisco Bay from the Sacramento-San Joaquin River, and salinity observations near the mouth, head, mid-estuary, and coastal ocean. Variations in delta flow, the principal source of variability in the bay, originate from anomalous changes in northern and central California streamflow, much of which is linked to anomalous winter sea level pressure (“CPA”) in the eastern Pacific. In years when CPA is strongly negative, precipitation in the watershed is heavy, delta flow is high, and the bay's salinity is low; similarly, when CPA is strongly positive, precipitation is light, delta flow is low, and the bay's salinity is high. Thus the pattern of temporal variability in atmospheric pressure anomalies is reflected in the streamflow, then in delta flow, then in estuarine variability.
\n
\n
Estuarine salinity can be characterized by river to ocean patterns in annual cycles of salinity in relation to delta flow. Salinity (total dissolved solids) data from the relatively pristine mountain streams of the Sierra Nevada show that for a given flow, one observes higher salinities during the rise in winter flow than on the decline. Salinity at locations throughout San Francisco Bay estuary are also higher during the rise in winter flow than the decline (because it takes a finite time for salinity to fully respond to changes in freshwater flow). In the coastal ocean, however, the annual pattern of sea surface salinity is reversed: lower salinities during the rise in winter flow than on the decline due to effects associated with spring upwelling. Delta flow in spring masks these effects of coastal upwelling on estuarine salinity, including near the mouth of the estuary and, in fact, explains in a statistical sense 86 percent of the variance in salinity at the mouth of the estuary. Some of the variations in residual salinity in the bay not explained by delta flow appear to correlate with variability in coastal ocean properties. Interestingly CPA correlates also with anomalous sea surface salinity in the coastal ocean adjacent to the bay, especially in spring (albeit through a different mechanism than streamflow). For instance, when the atmospheric pressure anomaly as indicated for streamflow is high, the coastal ocean upper-layer Ekman transport is probably in the offshore direction resultingin higher sea surface salinities along the coast (with a phase lag). This circulation corresponds, in direction, to density driven estuarine circulation. In contrast a low atmospheric pressure regime leads to an onshore surface transport, and therefore opposes estuarine circulation.
\n
\n
The influence of variations in delta flow on estuarine/phytoplankton/biochemical dynamics can be illustrated with numerical simulation models. For example, when riverflow is high the resulting low estuarine water residence time limits phytoplankton biomass and the observed effects of phytoplankton productivity on estuarine biochemistry are minimal. When riverflow is low but suspended sediment concentrations are high, light becomes a more important factor limiting phytoplankton biomass than residence time and effects of phytoplankton productivity on estuarine biochemistry are also minimal. When both riverflow and suspended sediment concentrations are low, phytoplankton biomass increases and phytoplankton productivity emerges as a major control on estuarine biochemistry: phytoplankton activity draws down and maintains very low ambient concentrations of dissolved silica and partial pressures of carbon dioxide (shifting pH to higher values). However, after an extended period of very low delta flow the major controls on estuarine biochemistry appear to change, possibly because benthic exchange processes (both sources and sinks) strengthen as salinity rises and benthic filter-feeding invertebrates migrate upstream with increasing salinity.
\n
Characteristics of an obligately methylotrophic coccoid methanogen (strain GS-16) previously isolated from estuarine sediment are described. Growth was demonstrated on dimethyl sulfide (DMS) or trimethylamine (TMA), but not on methane thiol, methane thiol plus hydrogen, dimethyl disulfide, or methionine. DMS-grown cells were able to metabolize DMS and TMA simultaneously when inoculated into media containing substrate levels of these compounds. However, TMA-grown cells could not metabolize [14C]DMS to 14CH4, although they could convert [14C]methanol to 14CH4. These results suggest that metabolism of DMS proceeds along a somewhat different route than that of TMA and perhaps also that of methanol. The organism exhibited doubling times of 23 and 32 h for growth (25°C) in mineral media on TMA and DMS, respectively. Doubling times were more rapid (∼6 h) when the organisms were grown on TMA in complex broth. In mineral media, the fastest growth on DMS occurred between pH levels of 7.0 and 8.7, at 29°C, and with 0.2 to 0.4 M Na+ and 0.04 M Mg2+. Somewhat different results occurred for growth on TMA in complex broth. Cells had a moles percent G+C value of 44.5% for their DNA. Growth on DMS, TMA, and methanol yielded stable carbon isotope fractionation factors of 1.044, 1.037, and 1.063, respectively. Fractionation factors for hydrogen were 1.203 (DMS) and 1.183 (TMA).
In various sediments in which Fe(III) reduction was the terminal electron-accepting process, [14C]glucose was fermented to 14C-fatty acids in a manner similar to that observed in methanogenic sediments. These results are consistent with the hypothesis that, in Fe(III)-reducing sediments, fermentable substrates are oxidized to carbon dioxide by the combined activity of fermentative bacteria and fatty acid-oxidizing, Fe(III)-reducing bacteria.
","language":"English","publisher":"American Society for Microbiology","doi":"10.1128/aem.55.12.3234-3236.1989","issn":"00992240","usgsCitation":"Lovley, D.R., and Phillips, E.J., 1989, Requirement for a microbial consortium to completely oxidize glucose in Fe(III)- reducing sediments: Applied and Environmental Microbiology, v. 55, no. 12, p. 3234-3236, https://doi.org/10.1128/aem.55.12.3234-3236.1989.","productDescription":"3 p.","startPage":"3234","endPage":"3236","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":479919,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1128/aem.55.12.3234-3236.1989","text":"Publisher Index Page"},{"id":223807,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maryland, Minnesota","city":"Bemidji","otherGeospatial":"Potomac River","geographicExtents":"{\n 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]\n}","volume":"55","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa908e4b0c8380cd85ba4","contributors":{"authors":[{"text":"Lovley, Derek R.","contributorId":107852,"corporation":false,"usgs":true,"family":"Lovley","given":"Derek","middleInitial":"R.","affiliations":[],"preferred":false,"id":370337,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Phillips, Elizabeth J.P.","contributorId":37475,"corporation":false,"usgs":true,"family":"Phillips","given":"Elizabeth","middleInitial":"J.P.","affiliations":[],"preferred":false,"id":370336,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015101,"text":"70015101 - 1989 - A comparison of two finite element models of tidal hydrodynamics using a North Sea data set","interactions":[],"lastModifiedDate":"2023-02-01T17:30:44.536153","indexId":"70015101","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":664,"text":"Advances in Water Resources","active":true,"publicationSubtype":{"id":10}},"title":"A comparison of two finite element models of tidal hydrodynamics using a North Sea data set","docAbstract":"Using the region of the English Channel and the southern bight of the North Sea, we systematically compare the results of two independent finite element models of tidal hydrodynamics. The model intercomparison provides a means for increasing our understanding of the relevant physical processes in the region in question as well as a means for the evaluation of certain algorithmic procedures of the two models.
","language":"English","publisher":"Elsevier","doi":"10.1016/0309-1708(89)90022-5","usgsCitation":"Walters, R.A., and Werner, F., 1989, A comparison of two finite element models of tidal hydrodynamics using a North Sea data set: Advances in Water Resources, v. 12, no. 4, p. 184-193, https://doi.org/10.1016/0309-1708(89)90022-5.","productDescription":"10 p.","startPage":"184","endPage":"193","numberOfPages":"10","costCenters":[],"links":[{"id":223966,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"English Channel, North Sea","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -4.238806932442344,\n 50.3556778594193\n ],\n [\n -3.9245012541310302,\n 48.66277868215653\n ],\n [\n -2.5055163001223946,\n 48.574893516299596\n ],\n [\n -1.4847440767553621,\n 48.6715886582364\n ],\n [\n -1.8533138209136837,\n 49.60324666326741\n ],\n [\n -1.4026293805001444,\n 49.72763916601804\n ],\n [\n -1.0403923729954272,\n 49.361900650268126\n ],\n [\n 0.0760210104153316,\n 49.44574669262283\n ],\n [\n 1.635796455450702,\n 50.222298286305914\n ],\n [\n 1.6665015413279889,\n 50.81452541862126\n ],\n [\n 3.5093411208896157,\n 51.37983407219363\n ],\n [\n 4.804229577841227,\n 53.015076989967184\n ],\n [\n 1.6199525098326717,\n 52.97597192513564\n ],\n [\n 1.684066477339286,\n 52.08219845138507\n ],\n [\n 0.7492061298781039,\n 51.370324917871756\n ],\n [\n 1.353208831024574,\n 51.37760627718626\n ],\n [\n 1.196391279270017,\n 50.86401998692878\n ],\n [\n -1.0133227594474192,\n 50.68434713349774\n ],\n [\n -1.8189956791787267,\n 50.60383129051692\n ],\n [\n -2.584590994819706,\n 50.546533664650156\n ],\n [\n -3.067986178446631,\n 50.633245929843326\n ],\n [\n -3.7034293402499543,\n 50.22220283072102\n ],\n [\n -4.238806932442344,\n 50.3556778594193\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"12","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e37ae4b0c8380cd4605b","contributors":{"authors":[{"text":"Walters, Roy A.","contributorId":74877,"corporation":false,"usgs":true,"family":"Walters","given":"Roy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":370073,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Werner, Francisco","contributorId":236916,"corporation":false,"usgs":false,"family":"Werner","given":"Francisco","email":"","affiliations":[{"id":7223,"text":"National Oceanic and Atmospheric Administration, National Marine","active":true,"usgs":false}],"preferred":true,"id":370074,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014992,"text":"70014992 - 1989 - Extraction of terrain features from digital elevation models","interactions":[],"lastModifiedDate":"2012-03-12T17:18:59","indexId":"70014992","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Extraction of terrain features from digital elevation models","docAbstract":"Digital elevation models (DEMs) are being used to determine variable inputs for hydrologic models in the Delaware River basin. Recently developed software for analysis of DEMs has been applied to watershed and streamline delineation. The results compare favorably with similar delineations taken from topographic maps. Additionally, output from this software has been used to extract other hydrologic information from the DEM, including flow direction, channel location, and an index describing the slope and shape of a watershed.","conferenceTitle":"Proceedings of the 1989 National Conference on Hydraulic Engineering","conferenceDate":"14 August 1989 through 18 August 1989","conferenceLocation":"New Orleans, LA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872627195","usgsCitation":"Price, C.V., Wolock, D.M., and Ayers, M.A., 1989, Extraction of terrain features from digital elevation models, Proceedings of the 1989 National Conference on Hydraulic Engineering, New Orleans, LA, USA, 14 August 1989 through 18 August 1989, p. 845-850.","startPage":"845","endPage":"850","numberOfPages":"6","costCenters":[],"links":[{"id":224124,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0e60e4b0c8380cd5340f","contributors":{"authors":[{"text":"Price, Curtis V. 0000-0002-4315-3539 cprice@usgs.gov","orcid":"https://orcid.org/0000-0002-4315-3539","contributorId":983,"corporation":false,"usgs":true,"family":"Price","given":"Curtis","email":"cprice@usgs.gov","middleInitial":"V.","affiliations":[{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":369790,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wolock, David M. 0000-0002-6209-938X dwolock@usgs.gov","orcid":"https://orcid.org/0000-0002-6209-938X","contributorId":540,"corporation":false,"usgs":true,"family":"Wolock","given":"David","email":"dwolock@usgs.gov","middleInitial":"M.","affiliations":[{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true},{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"preferred":true,"id":369789,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ayers, Mark A.","contributorId":84730,"corporation":false,"usgs":true,"family":"Ayers","given":"Mark","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":369791,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70015544,"text":"70015544 - 1989 - Predictors of the peak width for networks with exponential links","interactions":[],"lastModifiedDate":"2012-03-12T17:18:57","indexId":"70015544","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3479,"text":"Stochastic Hydrology and Hydraulics","active":true,"publicationSubtype":{"id":10}},"title":"Predictors of the peak width for networks with exponential links","docAbstract":"We investigate optimal predictors of the peak (S) and distance to peak (T) of the width function of drainage networks under the assumption that the networks are topologically random with independent and exponentially distributed link lengths. Analytical results are derived using the fact that, under these assumptions, the width function is a homogeneous Markov birth-death process. In particular, exact expressions are derived for the asymptotic conditional expectations of S and T given network magnitude N and given mainstream length H. In addition, a simulation study is performed to examine various predictors of S and T, including N, H, and basin morphometric properties; non-asymptotic conditional expectations and variances are estimated. The best single predictor of S is N, of T is H, and of the scaled peak (S divided by the area under the width function) is H. Finally, expressions tested on a set of drainage basins from the state of Wyoming perform reasonably well in predicting S and T despite probable violations of the original assumptions. ?? 1989 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Stochastic Hydrology and Hydraulics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF01543424","issn":"09311955","usgsCitation":"Troutman, B., and Karlinger, M., 1989, Predictors of the peak width for networks with exponential links: Stochastic Hydrology and Hydraulics, v. 3, no. 1, p. 1-16, https://doi.org/10.1007/BF01543424.","startPage":"1","endPage":"16","numberOfPages":"16","costCenters":[],"links":[{"id":224101,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":205444,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF01543424"}],"volume":"3","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8209e4b0c8380cd7b877","contributors":{"authors":[{"text":"Troutman, B.M.","contributorId":73638,"corporation":false,"usgs":true,"family":"Troutman","given":"B.M.","email":"","affiliations":[],"preferred":false,"id":371194,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Karlinger, M.R.","contributorId":95039,"corporation":false,"usgs":true,"family":"Karlinger","given":"M.R.","affiliations":[],"preferred":false,"id":371195,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015812,"text":"70015812 - 1989 - Morphology and growth history of Delgada Fan: Implications for the Neogene evolution of Point Arena Basin and the Mendocino Triple Junction","interactions":[],"lastModifiedDate":"2024-05-29T21:28:44.805145","indexId":"70015812","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":6453,"text":"Journal of Geophysical Research Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Morphology and growth history of Delgada Fan: Implications for the Neogene evolution of Point Arena Basin and the Mendocino Triple Junction","docAbstract":"Long-range side scan (GLORIA) sonographs and seismic reflection data acquired during a survey of the western U.S. Exclusive Economic Zone in 1984, coupled with information from Deep Sea Drilling Project sites, provide new insights into the growth and evolution of the Delgada Fan. Construction of the fan commenced in the latest Miocene (∼6 Ma) following the filling of the Neogene Point Arena Basin. The fan presently covers more than 50×103 km2 of the Pacific plate and contains approximately 15×103 km3 of predominantly terrigenous detritus. The large size of the fan is incompatible with the small present-day supply of sediment to the canyon system. The GLORIA data show the Delgada Fan to be a hybrid-type fan, exhibiting characteristics of both elongate and radial fans. The morphology and volume of the fan, along with evidence for a decline in accumulation rates on the lower fan during the Quaternary period, suggest that the fan experienced an early growth phase (latest Miocene and Pliocene) characterized by relatively rapid progradation of elongate fan lobes followed by a period (Quaternary) of slower growth that has featured a shift of depocenters to sites closer to the canyons and a transition to distributary channels bordered by less prominent levees and overbank deposits. We examine the growth of Delgada Fan in relation to the Neogene evolution of the North American-Pacific plate boundary using a series of paleogeographic reconstructions based on recently published time displacement histories of the Mendocino triple junction (MTJ), the San Andreas fault (SAF), and the Pacific plate, upon which the fan rests. The time displacement curves for the SAF and the MTJ suggest that the MTJ and Mendocino Fracture Zone overtook and passed Point Arena Basin at about 10 Ma when the basin lay immediately southwest of the present San Francisco Bay area. We suggest that the MTJ joined the SAF at approximately that time and location, thus making the SAF the master fault in the transform system. This interpretation is compatible with evidence from seismic reflection profiles over the fan, which demonstrate that the fan and the canyon system and therefore Point Arena Basin have moved as a unit since the inception of fan growth (∼6–7 Ma). Point Arena Basin lay southwest of the San Francisco area at 10–12 Ma, and the passage of the MTJ caused the disruption of the forearc shelf and slope and the development of local uplifted and subsiding blocks. In particular, uplift of the “bay block” immediately east of the SAF may have provided the source area for the late Miocene sediments that filled Point Arena Basin and set the stage for the growth of Delgada Canyon and Fan system. The growth rate of the fan has decreased, and the style of deposition has changed as the system was tectonically transported to its present location adjacent to the small youthful drainages of the King Range.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB094iB03p03139","issn":"01480227","usgsCitation":"Drake, D., Cacchione, D., Gardner, J., McCulloch, D.S., and Masson, D., 1989, Morphology and growth history of Delgada Fan: Implications for the Neogene evolution of Point Arena Basin and the Mendocino Triple Junction: Journal of Geophysical Research Solid Earth, v. 94, no. B3, p. 3139-3158, https://doi.org/10.1029/JB094iB03p03139.","productDescription":"20 p.","startPage":"3139","endPage":"3158","numberOfPages":"20","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":223331,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"94","issue":"B3","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a5e4de4b0c8380cd70947","contributors":{"authors":[{"text":"Drake, D.E.","contributorId":48150,"corporation":false,"usgs":true,"family":"Drake","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":371829,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cacchione, D.A.","contributorId":65448,"corporation":false,"usgs":true,"family":"Cacchione","given":"D.A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":371831,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gardner, J.V.","contributorId":76705,"corporation":false,"usgs":true,"family":"Gardner","given":"J.V.","affiliations":[],"preferred":false,"id":371832,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McCulloch, D. S.","contributorId":78315,"corporation":false,"usgs":true,"family":"McCulloch","given":"D.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":371833,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Masson, D.","contributorId":59564,"corporation":false,"usgs":true,"family":"Masson","given":"D.","email":"","affiliations":[],"preferred":false,"id":371830,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70015474,"text":"70015474 - 1989 - Origin of Sr, Nd and Pb isotopic systematics in high-Sr basalts from central Arizona","interactions":[],"lastModifiedDate":"2012-03-12T17:18:58","indexId":"70015474","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1336,"text":"Contributions to Mineralogy and Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Origin of Sr, Nd and Pb isotopic systematics in high-Sr basalts from central Arizona","docAbstract":"Alkalic and tholeiitic basalts were erupted in the central Arizona Transition Zone during Miocene-Pliocene time before and after regional faulting. The alkalic lava types differ from the subalkaline lavas in Sr, Nd and Pb isotopic ratios and trace element ratios and, despite close temporal and spatial relationships, the two types appear to be from discrete mantle sources. Pre-faulting lava types include: potassic trachybasalts (87Sr/86Sr = 0.7052 to 0.7055, e{open}Nd= -9.2 to -10.7); alkali olivine basalts (87Sr/ 86Sr = 0.7049 to 0.7054, e{open}Nd= -2 to 0.2); basanite and hawaiites (87Sr/86Sr = 0.7049 to 0.7053, e{open}Nd= -3.5 to -7.8); and quartz tholeiites (87Sr/86Sr = 0.7047, e{open}Nd= -1.4 to -2.6). Post-faulting lavas have lower 87Sr/86Sr (<0.7045) and e{open}Nd from -3.2 to 2.3. Pb isotopic data for both preand post-faulting lavas form coherent clusters by magma type with values higher than those associated with MORB but within the range of values found for crustal rocks and sulfide ores in Arizona and New Mexico. Pb isotopic systematics appear to be dominated by crustal contamination. Effects of assimilation and fractional crystallization are inadequate to produce the Sr isotopic variations unless very large amounts of assimilation occurred relative to fractionation. It is impossible to produce the Nd isotopic variations unless ancient very unradiogenic material exists beneath the region. Moreover the assumption that the alkalic lavas are cogenetic requires high degrees of fractionation inconsistent with major- and trace-element data. Metasomatism of the subcontinental lithosphere above a subduction zone by a slab-derived fluid enriched in Sr, Ba, P and K could have produced the isotopic and elemental patterns. The degree of metasomatism apparently decreased upward, with the alkalic lavas sampling more modified regions of the mantle than the tholeiitic lavas. Such metasomatism may have been a regional event associated with crustal formation at about 1.6 Ga. Disruption and weakening of the subcontinental lithosphere in the Transition Zone of the Colorado Plateau by volcanism probably made deformation possible. ?? 1989 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Contributions to Mineralogy and Petrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF00387201","issn":"00107999","usgsCitation":"Wittke, J., Smith, D., and Wooden, J.L., 1989, Origin of Sr, Nd and Pb isotopic systematics in high-Sr basalts from central Arizona: Contributions to Mineralogy and Petrology, v. 101, no. 1, p. 57-68, https://doi.org/10.1007/BF00387201.","startPage":"57","endPage":"68","numberOfPages":"12","costCenters":[],"links":[{"id":205414,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00387201"},{"id":223771,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"101","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a70c3e4b0c8380cd7621e","contributors":{"authors":[{"text":"Wittke, J.H.","contributorId":107857,"corporation":false,"usgs":true,"family":"Wittke","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":371038,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, D.","contributorId":60978,"corporation":false,"usgs":true,"family":"Smith","given":"D.","affiliations":[],"preferred":false,"id":371037,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wooden, J. L.","contributorId":58678,"corporation":false,"usgs":true,"family":"Wooden","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":371036,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70015513,"text":"70015513 - 1989 - Spectral analysis and filtering techniques in digital spatial data processing","interactions":[],"lastModifiedDate":"2017-01-18T14:27:08","indexId":"70015513","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3052,"text":"Photogrammetric Engineering and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Spectral analysis and filtering techniques in digital spatial data processing","docAbstract":"A filter toolbox has been developed at the EROS Data Center, US Geological Survey, for retrieving or removing specified frequency information from two-dimensional digital spatial data. This filter toolbox provides capabilities to compute the power spectrum of a given data and to design various filters in the frequency domain. Three types of filters are available in the toolbox: point filter, line filter, and area filter. Both the point and line filters employ Gaussian-type notch filters, and the area filter includes the capabilities to perform high-pass, band-pass, low-pass, and wedge filtering techniques. These filters are applied for analyzing satellite multispectral scanner data, airborne visible and infrared imaging spectrometer (AVIRIS) data, gravity data, and the digital elevation models (DEM) data. -from Author","language":"English","usgsCitation":"Pan, J., 1989, Spectral analysis and filtering techniques in digital spatial data processing: Photogrammetric Engineering and Remote Sensing, v. 55, no. 7, p. 1203-1207.","productDescription":"5 p.","startPage":"1203","endPage":"1207","numberOfPages":"5","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":224375,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9534e4b08c986b31adcb","contributors":{"authors":[{"text":"Pan, Jeng-Jong","contributorId":35877,"corporation":false,"usgs":true,"family":"Pan","given":"Jeng-Jong","email":"","affiliations":[],"preferred":false,"id":371118,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015547,"text":"70015547 - 1989 - Rocky Mountain Tertiary coal-basin models and their applicability to some world basins","interactions":[],"lastModifiedDate":"2024-02-23T01:00:25.767513","indexId":"70015547","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2033,"text":"International Journal of Coal Geology","active":true,"publicationSubtype":{"id":10}},"title":"Rocky Mountain Tertiary coal-basin models and their applicability to some world basins","docAbstract":"Tertiary intermontane basins in the Rocky Mountain region of the United States contain large amounts of coal resources. The first major type of Tertiary coal basin is closed and lake-dominated, either mud-rich (e.g., North Park Basin, Colorado) or mud plus carbonate (e.g., Medicine Lodge Basin, Montana), which are both infilled by deltas. The second major type of Tertiary coal basin is open and characterized by a preponderance of sediments that were deposited by flow-through fluvial systems (e.g., Raton Basin, Colorado and New Mexico, and Powder River Basin, Wyoming and Montana).
The setting for the formation of these coals varies with the type of basin sedimentation, paleotectonism, and paleoclimate. The mud-rich lake-dominated closed basin (transpressional paleotectonism and warm, humid paleoclimate), where infilled by sandy “Gilbert-type” deltas, contains thick coals (low ash and low sulfur) formed in swamps of the prograding fluvial systems. The mud- and carbonate-rich lake-dominated closed basin is infilled by carbonate precipitates plus coarse-grained fan deltas and fine-grained deltas. Here, thin coals (high ash and high sulfur) formed in swamps of the fine-grained deltas. The coarse-clastic, open basins (compressional paleotectonism and warm, paratropical paleoclimate) associated with flow-through fluvial systems contain moderately to anomalously thick coals (high to low ash and low sulfur) formed in swamps developed in intermittently abandoned portions of the fluvial systems.
These coal development patterns from the Tertiary Rocky Mountain basins, although occurring in completely different paleotectonic settings, are similar to that found in the Tertiary, Cretaceous, and Permian intermontane coal basins in China, New Zealand, and India.
The stability of magnesian calcites was reexamined, and new results are presented for 28 natural inorganic, 12 biogenic, and 32 synthetic magnesian calcites. The magnesian calcite solid-solutions were separated into two groups on the basis of differences in stoichiometric solubility and other physical and chemical properties. Group I consists of solids of mainly metamorphic and hydrothermal origin, synthetic calcites prepared at high temperatures and pressures, and synthetic solids prepared at low temperature and very low calcite supersaturations (![\"\"](\"http://ars.els-cdn.com/content/image/1-s2.0-0016703789900562-si1.gif\" "\\"\\"")
) from artificial sea water or NaClMgCl2CaCl2solutions. Group I solids are essentially binary s of CaCO2 and MgCO2, and are thought to be relatively free of structural defects. Group II solid-solutions are of either biogenic origin or are synthetic magnesian calcites and protodolomites (0–20 and ∼ 45 mole percent MgCO3) prepared at high calcite supersaturations (![\"\"](\"http://ars.els-cdn.com/content/image/1-s2.0-0016703789900562-si2.gif\" "\\"\\"")
) from NaClNa2SO4MgCl2CaCl2 or NaClMgCl2CaCl2 solutions. Group II solid-solutions are treated as massively defective solids. The defects include substitution foreign ions (Na+ and SO42−) in the magnesian calcite lattice (point defects) and dislocations (~2 · 109 cm−2). Within each group, the excess free energy of mixing, GE, is described by the mixing model
\n\n, where x is the mole fraction of the end-member Ca0.5Mg0.5CO3 in the solid-solution. The values of A0and A1 for Group I and II solids were evaluated at 25°C. The equilibrium constants of all the solids are closely described by the equation ln
\n\n, where KC and KD are the equilibrium constants of calcite and Ca0.5Mg0.5CO3. Group I magnesian calcites were modeled as sub-regular solid-solutions between calcite and dolomite, and between calcite and “disordered dolomite”. Both models yield almost identical equilibrium constants for these magnesian calcites. The Group II magnesian calcites were modeled as sub-regular solid-solutions between defective calcite and protodolomite. Group I and II solid-solutions differ significantly in stability. The rate of crystal growth and the chemical composition of the aqueous solutions from which the solids were formed are the main factors controlling stoichiometric solubility of the magnesian calcites and the density of crystal defects. The literature on the occurrence and behavior of magnesian calcites in sea water and other aqueous solutions is also examined.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(89)90056-2","issn":"00167037","usgsCitation":"Busenberg, E., and Plummer, N., 1989, Thermodynamics of magnesian calcite solid-solutions at 25°C and 1 atm total pressure: Geochimica et Cosmochimica Acta, v. 53, no. 6, p. 1189-1208, https://doi.org/10.1016/0016-7037(89)90056-2.","productDescription":"20 p.","startPage":"1189","endPage":"1208","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":223998,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb282e4b08c986b32584b","contributors":{"authors":[{"text":"Busenberg, Eurybiades ebusenbe@usgs.gov","contributorId":2271,"corporation":false,"usgs":true,"family":"Busenberg","given":"Eurybiades","email":"ebusenbe@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":371426,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Plummer, Niel 0000-0002-4020-1013 nplummer@usgs.gov","orcid":"https://orcid.org/0000-0002-4020-1013","contributorId":190100,"corporation":false,"usgs":true,"family":"Plummer","given":"Niel","email":"nplummer@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":371427,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015113,"text":"70015113 - 1989 - Sedimentology and paleontology of the Upper Triassic Chinle Formation, Bedrock, Colorado","interactions":[],"lastModifiedDate":"2012-03-12T17:19:00","indexId":"70015113","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2789,"text":"Mountain Geologist","active":true,"publicationSubtype":{"id":10}},"title":"Sedimentology and paleontology of the Upper Triassic Chinle Formation, Bedrock, Colorado","docAbstract":"Describes a reddish-brown sandstone, siltstone, and mudstone, with minor amounts of siliciclastic-, carbonate-, and chert-pebble conglomerate, and green mudstone. Deposition occurred in continental environments. Lithofacies, trace fossils, and invertebrate and vertebrate fossils indicate that the Late Triassic climate was tropical monsoonal until the close of Chinle deposition when drier seasons became more pronounced. -from Authors","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mountain Geologist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0027254X","usgsCitation":"Dubiel, R.F., Good, S., and Parrish, J., 1989, Sedimentology and paleontology of the Upper Triassic Chinle Formation, Bedrock, Colorado: Mountain Geologist, v. 26, no. 4, p. 113-126.","startPage":"113","endPage":"126","numberOfPages":"14","costCenters":[],"links":[{"id":224134,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8a9ee4b08c986b3172a2","contributors":{"authors":[{"text":"Dubiel, R. F. 0000-0002-1280-0350","orcid":"https://orcid.org/0000-0002-1280-0350","contributorId":41820,"corporation":false,"usgs":true,"family":"Dubiel","given":"R.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":370108,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Good, S.C.","contributorId":96376,"corporation":false,"usgs":true,"family":"Good","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":370110,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Parrish, J.M.","contributorId":92808,"corporation":false,"usgs":true,"family":"Parrish","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":370109,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":2681,"text":"wsp2234J - 1989 - Nitrogen dynamics in the tidal freshwater Potomac River, Maryland and Virginia, water years 1979-81","interactions":[],"lastModifiedDate":"2023-04-17T21:11:03.943038","indexId":"wsp2234J","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2234","chapter":"J","title":"Nitrogen dynamics in the tidal freshwater Potomac River, Maryland and Virginia, water years 1979-81","docAbstract":"On an annual basis, river-supplied nitrate is the predominant form of nitrogen supplied to the tidal Potomac River from external sources. Much of the nitrate is associated with high flows that have rapid transit times through the tidal river. The Blue Plains Sewage-Treatment Plant (STP) at Washington, D.C., is the greatest source of all nitrogen species during low-flow periods. Prior to the fall of 1980, ammonia concentrations in depth-integrated, composited water samples were greatest (more than 1.00 mg/L (milligram per liter) as nitrogen) during summer periods near Alexandria, Va., because of loading from the nearby Blue Plains STP and reduced river discharge. After the fall of 1980, initiation of advanced wastewater treatment at the Blue Plains STP reduced ammonia loading to the river by 90 percent and increased nitrate loading by a similar percentage. As a result, concentrations of ammonia during the 1981 low-flow period were less than 0.20 mg/L as nitrogen at Alexandria, while nitrate concentrations were greater than 1.50 mg/L as nitrogen. Concentrations of ammonia and nitrate at Alexandria were shown to be reasonably predictable by use of a simple dilution model that considers only loading from Chain Bridge and the Blue Plains STP. This apparently is the result of the short residence time through the Chain Bridge-to-Alexandria section of the tidal Potomac River, which precludes significant biological alterations. In marked contrast, the residence times of water parcels in the tidal Potomac River from Alexandria to Quantico, Va., are much greater because of the geometry of the reach. Biological nitrogen-cycle transformation processes affect nitrogen-species concentrations to a greater extent in this reach, especially during summer low-flow periods. Mass-balance calculations that separate changes in transport mass from biological transformations indicatethat the tidal Potomac River was a net sink for all the nitrogen constituents during the 1980 and 1981 summer low-flow periods. However, during the 1980-81 winter period, some ammonia and nitrate was transported out of the tidal Potomac River into the transition zone. Despite the reduced availability of ammonia, nitrogen-15 uptake studies showed that phytoplankton preferred ammonia to nitrate unless ammonia concentrations were less than 0.10 mg/L as nitrogen. Nitrification-rate studies during 1981 using a carbon-14 uptake technique indicate that rates did not vary with sample location, except for one sample from the head of the tidal river, where the rates were much higher. The numbers of Nitrobacter bacteria were highest in samples from near the Blue Plains STP and were greater than the numbers of Nitrosomonas bacteria. The predominance of Nitrobacter bacteria seemed to be associated with advanced wastewater treatment at the Blue Plains STP. Before advanced wastewater treatment, Nitrosomonas were numerically predominant and had the largest numbers near the Blue Plains STP. These results could be due to (1) loading of nitrifying bacteria in the Blue Plains sewage effluent that had been inhibited from further growth by an inhibitory substance or (2) the method used to measure nitrification rates, which measured only the ammonia oxidation stage; it is not possible to reject either mechanism on the basis of the data available. Process models were used in conjunction with mass-balance determinations and individual process studies to estimate rates of processes that were not directly measured. It is estimated that denitrification removed 10 times as much nitrate from the water column during the summer of 1981 as during the summer of 1980. Sedimentation of particulate nitrogen is estimated to be the largest sink for nitrogen from the water column and was approximately equal to the external annual loading of all nitrogen constituents on a daily basis.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wsp2234J","usgsCitation":"Shultz, D.J., 1989, Nitrogen dynamics in the tidal freshwater Potomac River, Maryland and Virginia, water years 1979-81: U.S. Geological Survey Water Supply Paper 2234, vii, 41 p., https://doi.org/10.3133/wsp2234J.","productDescription":"vii, 41 p.","numberOfPages":"48","costCenters":[],"links":[{"id":415891,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25398.htm","linkFileType":{"id":5,"text":"html"}},{"id":29037,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2234j/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":138779,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2234j/report-thumb.jpg"}],"country":"United States","state":"Maryland, Virginia","otherGeospatial":"Potomac River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -76.2072200050025,\n 37.83634645818209\n ],\n [\n -76.2072200050025,\n 39.05175633806698\n ],\n [\n -77.4715913845413,\n 39.05175633806698\n ],\n [\n -77.4715913845413,\n 37.83634645818209\n ],\n [\n -76.2072200050025,\n 37.83634645818209\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1be4b07f02db6a8a29","contributors":{"authors":[{"text":"Shultz, David J.","contributorId":35324,"corporation":false,"usgs":true,"family":"Shultz","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":145601,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015543,"text":"70015543 - 1989 - A high-density remote reference magnetic variation profile in the Pacific northwest of North America","interactions":[],"lastModifiedDate":"2013-02-13T13:16:11","indexId":"70015543","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3071,"text":"Physics of the Earth and Planetary Interiors","active":true,"publicationSubtype":{"id":10}},"title":"A high-density remote reference magnetic variation profile in the Pacific northwest of North America","docAbstract":"During the summer of 1985, as part of the EMSLAB Project, Brown University conducted a detailed magnetic variation study of the Oregon Coast Range and Cascades volcanic system along an E-W profile in central Oregon. Comprised of a sequence of 75 remote reference magnetic variation (MV) stations spaced 3-4 km apart, the profile stretched for 225 km from Newport, on the Oregon coast, across the Coast Range, the Willamette Valley, and the High Cascades to a point ??? 50 km east of Santiam Pass. At all of the MV stations, data were collected for short periods (16-100 s), and at 17 of these stations data were also obtained at longer periods (100-1600 s). Data were monitored with a three-component ring core fluxgate magnetometer (Nanotesla), and were recorded with a microcomputer (DEC PDP 11/73) based data acquisition system. A 2-D generalized inversion of the magnetic transfer coefficients over the period range of 16-1600 s indicates four distinct conductors. First, we see the coast effect caused by a large sedimentary wedge offshore. Second, we see the effect of currents flowing in the conductive sediments of the Willamette Valley. Our inversion suggests that the Willamette Valley consists of two electrically distinct features, due perhaps to a horst-like structure imprinted on the valley sediments. Next we note an electric current system centered beneath the High Cascades. This latter feature may be associated with a sediment-filled graben beneath Santiam Pass as suggested by some of the gravity and MT results reported to date. Finally, we detect the presence of a deep conductor at mid-crustal depths which laterally extends westward from beneath the Basin and Range Province, and terminates beneath the western Cascades. One view of this last result is that it appears that modern Basin and Range structure is being imprinted on pre-existing Cascade structure. ?? 1989.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Physics of the Earth and Planetary Interiors","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/0031-9201(89)90016-2","issn":"00319201","usgsCitation":"Hermance, J., Lusi, S., Slocum, W., Neumann, G., and Green, A., 1989, A high-density remote reference magnetic variation profile in the Pacific northwest of North America: Physics of the Earth and Planetary Interiors, v. 53, no. 3-4, p. 305-319, https://doi.org/10.1016/0031-9201(89)90016-2.","startPage":"305","endPage":"319","numberOfPages":"15","costCenters":[],"links":[{"id":267325,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0031-9201(89)90016-2"},{"id":224100,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e41ee4b0c8380cd4640c","contributors":{"authors":[{"text":"Hermance, J.F.","contributorId":59565,"corporation":false,"usgs":true,"family":"Hermance","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":371192,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lusi, S.","contributorId":37903,"corporation":false,"usgs":true,"family":"Lusi","given":"S.","email":"","affiliations":[],"preferred":false,"id":371190,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Slocum, W.","contributorId":53096,"corporation":false,"usgs":true,"family":"Slocum","given":"W.","email":"","affiliations":[],"preferred":false,"id":371191,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Neumann, G.A.","contributorId":11767,"corporation":false,"usgs":true,"family":"Neumann","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":371189,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Green, A.W. Jr.","contributorId":101007,"corporation":false,"usgs":true,"family":"Green","given":"A.W.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":371193,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":1004077,"text":"1004077 - 1989 - Quarterly Wildlife Mortality Report","interactions":[],"lastModifiedDate":"2015-01-26T15:41:47","indexId":"1004077","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3499,"text":"Supplement to the Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"title":"Quarterly Wildlife Mortality Report","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Supplement to the Journal of Wildlife Diseases","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Converse, K.A., Windingstad, R., Roertgen, K., and Roffe, T., 1989, Quarterly Wildlife Mortality Report: Supplement to the Journal of Wildlife Diseases, v. 25, no. 4, 3 p.","productDescription":"3 p.","numberOfPages":"3","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":129424,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -180.17578125,\n 17.14079039331665\n ],\n [\n -180.17578125,\n 72.71190310803662\n ],\n [\n -65.7421875,\n 72.71190310803662\n ],\n [\n -65.7421875,\n 17.14079039331665\n ],\n [\n -180.17578125,\n 17.14079039331665\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"25","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adbe4b07f02db685cc5","contributors":{"authors":[{"text":"Converse, K. A.","contributorId":81436,"corporation":false,"usgs":true,"family":"Converse","given":"K.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":315113,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Windingstad, R.","contributorId":15558,"corporation":false,"usgs":true,"family":"Windingstad","given":"R.","affiliations":[],"preferred":false,"id":315111,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Roertgen, K.","contributorId":23491,"corporation":false,"usgs":true,"family":"Roertgen","given":"K.","email":"","affiliations":[],"preferred":false,"id":315112,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Roffe, T.","contributorId":91051,"corporation":false,"usgs":true,"family":"Roffe","given":"T.","email":"","affiliations":[],"preferred":false,"id":315114,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70015506,"text":"70015506 - 1989 - State of stress and modern deformation of the northern Basin and Range Province","interactions":[],"lastModifiedDate":"2024-05-29T21:44:52.296119","indexId":"70015506","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":6453,"text":"Journal of Geophysical Research Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"State of stress and modern deformation of the northern Basin and Range Province","docAbstract":"Constraints on the current stress regime of the actively extending northern Basin and Range province are provided by deformation data (focal mechanisms and fault slip studies), hydraulic fracturing in situ stress measurements, borehole elongation (“breakouts”) analyses, and alignment of young volcanic vents. The integrated data indicate significant variations both in principal stress orientations and magnitudes. An approximately E-W least principal stress direction appears to characterize both the eastern and western margins of the Basin and Range province, whereas in the active interior parts of the province extension occurs in response to a least principal stress oriented NW to N60°W. The contrast in stress orientations between the province boundaries and in the interior suggests that along the margins the least principal stress direction may be locally controlled by the generally northerly trending profound lithospheric discontinuities associated with these margins. Active deformation along the southeastern and western province margins is characterized by a combination of strike-slip and normal faulting. Focal mechanisms along northeastern province margin (Wasatch front) and in central Nevada indicate a combination of normal and oblique-normal faulting. Temporal, regional, and depth-dependent variations in the relative magnitudes of the vertical and maximum horizontal stresses can explain much of the observed variations in deformation styles. However, some depth variation in faulting style inferred from focal mechanisms may be apparent and simply a function of the attitude of fault planes being reactivated. Evidence for significant temporal variation (or multiple cycles of variation) in relative stress magnitude comes from the Sierran front-Basin and Range boundary region where recent earthquakes are predominantly strike slip, whereas the profound relative vertical relief across the Sierra frontal fault zone in the last 9–10 m.y. implies a normal faulting stress regime. Using the best data on stress orientation, relative stress magnitudes are constrained from slip vectors of major earthquakes and young fault displacements. Analysis of well-constrained slip vectors in the Owens Valley, California, area indicate that large temporal variations in the magnitude of the approximately N-S oriented maximum horizontal stress are required to explain dominantly dip-slip and strike-slip offsets on subparallel faults. Similar faulting relations are observed throughout much of the boundary zone between the Basin and Range-Sierra Nevada (including the Walker Lane belt). Along the eastern province margin in the Wasatch front area in Utah, available data suggest that the maximum and minimum horizontal stresses may be approximately equal at depths of <4–5 km. Earthquake focal mechanisms in this area suggest more variability in relative magnitude of the two horizontal stresses with depth. Furthermore, superimposed sets of young fault striae along a segment of the Wasatch fault also indicate temporal variations of relative stress magnitudes. Sources of regional and temporal variations in the stress field may be linked to variable shear tractions applied to the base of the brittle crust related to intrusion, thermally induced flow, and the influence of the San Andreas plate boundary. Although difficult to date accurately, the fault slip data suggest that the temporal variations in relative magnitudes stress may occur on the time scale of both a single major earthquake cycle (1000–5000 years) and multiple earthquake cycles (10,000+ years).
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB094iB06p07105","issn":"01480227","usgsCitation":"Zoback, M., 1989, State of stress and modern deformation of the northern Basin and Range Province: Journal of Geophysical Research Solid Earth, v. 94, no. B6, p. 7105-7128, https://doi.org/10.1029/JB094iB06p07105.","productDescription":"24 p.","startPage":"7105","endPage":"7128","numberOfPages":"24","costCenters":[],"links":[{"id":224261,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"94","issue":"B6","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505b96cfe4b08c986b31b710","contributors":{"authors":[{"text":"Zoback, M.L.","contributorId":12982,"corporation":false,"usgs":true,"family":"Zoback","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":371098,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015614,"text":"70015614 - 1989 - Significance of new potassium-argon ages from the Goldens Ranch and Moroni Formations, Sanpete-Sevier Valley area, central Utah","interactions":[],"lastModifiedDate":"2023-12-27T12:35:18.473736","indexId":"70015614","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","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":"Significance of new potassium-argon ages from the Goldens Ranch and Moroni Formations, Sanpete-Sevier Valley area, central Utah","docAbstract":"Exposures of volcanic-sedimentary strata are widely distributed within central Utah. We believe that these volcanic and stratified sedimentary rocks, known by different formational names in different parts of this region, are, in fact, segments of one and the same suite of rocks that formed during the early and middle Tertiary.
The volcanic-sedimentary complex is exposed on both sides of a north-trending lowland formed by the collinear Juab and Sevier Valleys. West of the lowland, the complex has been named the \"Goldens Ranch Formation\" east of the lowland, it has been called the \"Moroni Formation.\"; Both formations are stratigraphically alike in that each consists of a lower unit composed predominantly of water-laid, variably cemented sediments and sedimentary rocks with some tuff beds near the base, and an upper unit of intermediate-composition volcanic rocks, chiefly ash-flow tuffs, and volcanic breccias. Both formations contain abundant exotic clasts of andesite, tan and purple quartzite, and dark blue limestone and dolomite. Both formations are folded and faulted along with the underlying sedimentary units.
Potassium-argon ages indicate that both the Goldens Ranch and Moroni Formations formed during the late Eocene to middle Oligocene. The geochronology and stratigraphic relations are strong evidence that the Goldens Ranch and Moroni Formations are correlative, and that they are one and the same depositional unit.
During the latest Oligocene-earliest Miocene, minor monzonitic bodies intruded sedimentary units in the area.
The new K-Ar data bear on the matter of the origin of the complex structural deformation in central Utah. Different workers have attributed the singular deformation either to recurrent episodes of compression stemming from the Sevier orogeny, or to repeated episodes of salt diapirism. We recognize two sequences of repeated deformation: one that occurred prior to deposition and consolidation of the Goldens Ranch and Moroni Formations, and a second that occurred after these formations were emplaced, in essence, after early Oligocene time. The Sevier orogeny ended in Paleocene time; thus, the compression and thrusting stemming from the Sevier orogeny could be responsible for the structural complexity that marks pre-Paleocene units. These same orogenic forces do not seem to be viable explanations for the broad flexures and monoclinal downwarps that mark the Goldens Ranch, Moroni, and younger formations. In our view, multiple episodes of salt diapirism more reasonably explain the structural complexity in central Utah.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1989)101<0534:SONPAA>2.3.CO;2","usgsCitation":"Witkind, I.J., and Marvin, R.F., 1989, Significance of new potassium-argon ages from the Goldens Ranch and Moroni Formations, Sanpete-Sevier Valley area, central Utah: Geological Society of America Bulletin, v. 101, no. 4, p. 534-548, https://doi.org/10.1130/0016-7606(1989)101<0534:SONPAA>2.3.CO;2.","productDescription":"15 p.","startPage":"534","endPage":"548","numberOfPages":"15","costCenters":[],"links":[{"id":224433,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Utah","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -112.40554338984188,\n 39.776483822588716\n ],\n [\n -112.40554338984188,\n 38.91841705321613\n ],\n [\n -111.26296526484207,\n 38.91841705321613\n ],\n [\n -111.26296526484207,\n 39.776483822588716\n ],\n [\n -112.40554338984188,\n 39.776483822588716\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"101","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8f1be4b08c986b318d24","contributors":{"authors":[{"text":"Witkind, I. J.","contributorId":54221,"corporation":false,"usgs":true,"family":"Witkind","given":"I.","middleInitial":"J.","affiliations":[],"preferred":false,"id":371370,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Marvin, R. F.","contributorId":60597,"corporation":false,"usgs":true,"family":"Marvin","given":"R.","middleInitial":"F.","affiliations":[],"preferred":false,"id":371371,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015979,"text":"70015979 - 1989 - Dynamic rupture modeling with laboratory-derived constitutive relations","interactions":[],"lastModifiedDate":"2024-05-29T16:49:27.28769","indexId":"70015979","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":6453,"text":"Journal of Geophysical Research Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Dynamic rupture modeling with laboratory-derived constitutive relations","docAbstract":"A laboratory-derived state variable friction constitutive relation is used in the numerical simulation of the dynamic growth of an in-plane or mode II shear crack. According to this formulation, originally presented by J. H. Dieterich, frictional resistance varies with the logarithm of the slip rate and with the logarithm of the frictional state variable as identified by A. L. Ruina. Under conditions of steady sliding, the state variable is proportional to (slip rate)−1. Following suddenly introduced increases in slip rate, the rate and state dependencies combine to produce behavior which resembles slip weakening. When rupture nucleation is artificially forced at fixed rupture velocity, rupture models calculated with the state variable friction in a uniformly distributed initial stress field closely resemble earlier rupture models calculated with a slip weakening fault constitutive relation. Additional rupture models are calculated in which rupture nucleation is achieved naturally, with numerical simulations of the quasi-static response of the fault leading to the onset of unstable, dynamic rupture. When rupture nucleation with the state variable friction law takes place naturally, a large fraction of the fault accelerates before accelerating slip is concentrated in what ultimately becomes the rupture nucleation patch. The state evolution accompanying this accelerating slip leads to higher average rupture speeds or a more rapid rupture acceleration to near P wave rupture speeds. Rupture models are also calculated for the seismological asperity problem, that is, the failure of a highly stressed fault patch surrounded by a region of zero stress drop. Dynamic overshoot of slip into the region of zero stress drop roughly agrees with a simple energy balance analysis; the final size of the rupture is proportional to the square of the size of the high stress patch. Earlier frictional stability analyses have led to the definition of a critical fault patch size for rupture nucleation. This critical patch size is generally different from critical crack lengths determined from crack tip energy balance considerations applied to a simpler slip weakening law. In the model calculations, dynamic rupture does not nucleate if the starting patch size is less than the critical patch size. This is consistent with the frictional stability analyses. Thus these model calculations suggest that dynamic rupture following a state variable friction relation is similar to that following a simpler fault slip weakening law. However, when modeling the full cycle of fault motions, rate-dependent frictional responses included in the state variable formulation are important at low slip rates associated with rupture nucleation. The critical rupture nucleation dimension appropriate for a slip weakening fault does not predict the critical nucleation dimension for a state variable fault.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB094iB09p12321","issn":"01480227","usgsCitation":"Okubo, P.G., 1989, Dynamic rupture modeling with laboratory-derived constitutive relations: Journal of Geophysical Research Solid Earth, v. 94, no. B9, p. 12321-12335, https://doi.org/10.1029/JB094iB09p12321.","productDescription":"15 p.","startPage":"12321","endPage":"12335","costCenters":[],"links":[{"id":222825,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"94","issue":"B9","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a042ae4b0c8380cd50817","contributors":{"authors":[{"text":"Okubo, P. G. 0000-0002-0381-6051","orcid":"https://orcid.org/0000-0002-0381-6051","contributorId":95899,"corporation":false,"usgs":true,"family":"Okubo","given":"P.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":372237,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015148,"text":"70015148 - 1989 - Deformation of the Eastern Franciscan Belt, northern California","interactions":[],"lastModifiedDate":"2024-05-13T23:46:28.877808","indexId":"70015148","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2468,"text":"Journal of Structural Geology","active":true,"publicationSubtype":{"id":10}},"title":"Deformation of the Eastern Franciscan Belt, northern California","docAbstract":"The late Jurassic and Cretaceous Eastern Franciscan belt of the northern California Coast Range consists of two multiply deformed, blueschist-facies terranes; the Pickett Peak and Yolla Bolly terranes. Four deformations have been recognized in the Pickett Peak terrane, and three in the Yolla Bolly terrane. The earliest recognized penetrative fabric, D1, occurs only in the Pickett Peak terrane. The later penetrative fabrics, D2 and D3, occur in both the Yolla Bolly and Pickett Peak terranes. D1 and D2 apparently represent fabrics that formed during subduction and accretion of the terranes. Fabrics from both D1 and D2 are consistent with SW-NE movement directions with respect to their present geographic positions. D3 postdates blueschist-facies metamorphism of the terranes and may be related to emplacement of the terranes to higher structural levels. A broad regional warping, D4, is evident from the map pattern and folding of large metamorphosed thrust sheets. D4 folds may be related to deformation associated with oblique convergence along the continental margin in late Cretaceous and (or) early Tertiary time.
","largerWorkTitle":"Elsevier","language":"English","doi":"10.1016/0191-8141(89)90016-3","issn":"01918141","usgsCitation":"Jayko, A.S., and Blake, M., 1989, Deformation of the Eastern Franciscan Belt, northern California: Journal of Structural Geology, v. 11, no. 4, p. 375-390, https://doi.org/10.1016/0191-8141(89)90016-3.","productDescription":"16 p.","startPage":"375","endPage":"390","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":223802,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe4be4b0c8380cd4ec52","contributors":{"authors":[{"text":"Jayko, A. S. 0000-0002-7378-0330","orcid":"https://orcid.org/0000-0002-7378-0330","contributorId":18011,"corporation":false,"usgs":true,"family":"Jayko","given":"A.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":370202,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blake, M.C. Jr.","contributorId":27094,"corporation":false,"usgs":true,"family":"Blake","given":"M.C.","suffix":"Jr.","affiliations":[],"preferred":false,"id":370203,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015468,"text":"70015468 - 1989 - Availability of a library of infrared (2.1-25.0 μm) mineral spectra","interactions":[],"lastModifiedDate":"2015-06-02T09:26:02","indexId":"70015468","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":738,"text":"American Mineralogist","active":true,"publicationSubtype":{"id":10}},"title":"Availability of a library of infrared (2.1-25.0 μm) mineral spectra","docAbstract":"All previously published libraries of infrared mineral spectra are in the form of transmittance. Reflectance spectra are, however, more useful for remote sensing and some potential laboratory applications, such as the use of an infrared microscope for mineral identification on polished sections. This note points out that construction of a new library of infrared (2.1-25.0 μm) mineral spectra is in progress. Both transmittance and reflectance measurements of a selection of 63 different, well-characteized minerals have been published to date. These data are available in both hard copy and digital form.
","language":"English","issn":"0003004X","usgsCitation":"Salisbury, J.W., Walter, L.S., and Vergo, N., 1989, Availability of a library of infrared (2.1-25.0 μm) mineral spectra: American Mineralogist, v. 74, no. 7-8, p. 938-939.","productDescription":"2 p.","startPage":"938","endPage":"939","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":223665,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":300957,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.minsocam.org/msa/collectors_corner/amtoc/toc1989.htm"}],"volume":"74","issue":"7-8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ef0de4b0c8380cd4a0ef","contributors":{"authors":[{"text":"Salisbury, John W.","contributorId":96420,"corporation":false,"usgs":true,"family":"Salisbury","given":"John","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":371024,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walter, Louis S.","contributorId":97927,"corporation":false,"usgs":true,"family":"Walter","given":"Louis","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":371025,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vergo, Norma","contributorId":18394,"corporation":false,"usgs":true,"family":"Vergo","given":"Norma","email":"","affiliations":[],"preferred":false,"id":371023,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70016133,"text":"70016133 - 1989 - The influence of surface state and saturation state on the dissolution kinetics of biogenic aragonite in seawater","interactions":[],"lastModifiedDate":"2023-02-08T16:34:30.759832","indexId":"70016133","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":732,"text":"American Journal of Science","active":true,"publicationSubtype":{"id":10}},"title":"The influence of surface state and saturation state on the dissolution kinetics of biogenic aragonite in seawater","docAbstract":"No abstract available.
","language":"English","publisher":"American Journal of Science","doi":"10.2475/ajs.289.9.1098","usgsCitation":"Acker, J.G., and Byrne, R.H., 1989, The influence of surface state and saturation state on the dissolution kinetics of biogenic aragonite in seawater: American Journal of Science, v. 289, no. 9, p. 1098-1116, https://doi.org/10.2475/ajs.289.9.1098.","productDescription":"19 p.","startPage":"1098","endPage":"1116","numberOfPages":"19","costCenters":[],"links":[{"id":480533,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2475/ajs.289.9.1098","text":"Publisher Index Page"},{"id":223501,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"289","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bad39e4b08c986b323a83","contributors":{"authors":[{"text":"Acker, James G.","contributorId":52334,"corporation":false,"usgs":true,"family":"Acker","given":"James","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":372624,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Byrne, Robert H.","contributorId":149366,"corporation":false,"usgs":false,"family":"Byrne","given":"Robert","email":"","middleInitial":"H.","affiliations":[{"id":17720,"text":"College of Marine Science USF","active":true,"usgs":false}],"preferred":false,"id":372623,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
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