{"pageNumber":"4682","pageRowStart":"117025","pageSize":"25","recordCount":184606,"records":[{"id":70014466,"text":"70014466 - 1988 - Thermochronology of economic mineral deposits: Dating the stages of mineralization at Panasqueira, Portugal, by high-precision 40Ar/ 39Ar age spectrum techniques on muscovite","interactions":[],"lastModifiedDate":"2024-01-05T16:27:52.234009","indexId":"70014466","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Thermochronology of economic mineral deposits: Dating the stages of mineralization at Panasqueira, Portugal, by high-precision <sup>40</sup>Ar/ <sup>39</sup>Ar age spectrum techniques on muscovite","title":"Thermochronology of economic mineral deposits: Dating the stages of mineralization at Panasqueira, Portugal, by high-precision 40Ar/ 39Ar age spectrum techniques on muscovite","docAbstract":"<p><sup>40</sup><span>&nbsp;Ar/&nbsp;</span><sup>39</sup><span>&nbsp;Ar age spectrum dates for 13 muscovites have been used to reconstruct the thermal history (thermochronology) of the Panasqueira, Portugal, tin-tungsten deposit, a deposit spatially associated with a belt of Hercynian plutons. Muscovite samples with an age difference as small as 2.2 m.y. (0.7% of the age) are statistically distinct. Statistics are even better for comparison of multiple samples from separate events; that is, a difference of 0.9 m.y. (0.3%) can be resolved in this approximately 300-m.y.-old deposit. The major tin and tungsten ore-forming stages, which are the oxide-silicate stage, the main sulfide stage, and greisenization, occurred between 296.3 + or - 0.8 (1 Sigma ) and 291.6 + or - 0.8 m.y. (1 Sigma ). The first substage of the oxide-silicate stage was a short-lived thermal pulse at 296.3 + or - 0.6 m.y.; the fluids responsible may have emanated from the known granite cupola. The main sulfide stage was active at 294.5 + or - 0.9 m.y. as a slightly longer lived pulse with oldest evidence for this stage (295.8 + or - 0.6 m.y.) coming from areas farthest away from the known cupola and youngest evidence (293.5 + or - 0.8 m.y.) closest to the cupola. A second substage of the oxide-silicate stage occurred as a short-lived thermal pulse at 292.9 + or - 0.7 m.y., synchronous with greisenization of the cupola and alteration of the silica cap at 292.1 + or - 0.4 m.y. The duration of activity of the oxide-silicate stage, the main sulfide stage, greisenization, and alteration of the silica cap based on the ages of all 13 muscovites was greater than 4.2 + or - 0.5 m.y. (1 Sigma ). Minor argon loss from all dated muscovites occurred during later reheating, probably during the longer lived pyrrhotite alteration stage. A single center, the known cupola, had a prolonged role and was the source for main sulfide stage, oxide-silicate stage II, greisenization, and alteration of the silica cap and possibly oxide-silicate stage I and the pyrrhotite alteration stage; however, a separate source for these latter two stages cannot be ruled out.This study is an example of a new and powerful application of&nbsp;</span><sup>40</sup><span>&nbsp;Ar/&nbsp;</span><sup>39</sup><span>&nbsp;Ar age spectrum dating of muscovite. Because of the high precision demonstrated in this study, it is now possible to establish time constraints necessary for solving some of the long-standing problems in economic geology. Beyond this, the unique geologic situation of Panasqueira has allowed us to quantify the thermal characteristics of muscovite. Published fluid inclusion data have been used to estimate a muscovite argon closure temperature of approximately 325 degrees C during rapid cooling or short reheating and a temperature of approximately 270 degrees C during slow cooling or extended reheating. Argon-loss patterns displayed by all dated muscovites resulted from reheating after original closure; the mechanism for this argon loss appears to have been argon transport by volume diffusion. Thus,&nbsp;</span><sup>40</sup><span>&nbsp;Ar/&nbsp;</span><sup>39</sup><span>&nbsp;Ar age spectrum dating of muscovite can be used to evaluate thermal conditions controlling argon diffusion as well as age, duration, and number of episodes of mineralization.</span></p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.83.2.335","issn":"03610128","usgsCitation":"Snee, L., Sutter, J.F., and Kelly, W., 1988, Thermochronology of economic mineral deposits: Dating the stages of mineralization at Panasqueira, Portugal, by high-precision 40Ar/ 39Ar age spectrum techniques on muscovite: Economic Geology, v. 83, no. 2, p. 335-354, https://doi.org/10.2113/gsecongeo.83.2.335.","productDescription":"20 p.","startPage":"335","endPage":"354","numberOfPages":"20","costCenters":[],"links":[{"id":225959,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"83","issue":"2","noUsgsAuthors":false,"publicationDate":"1988-04-01","publicationStatus":"PW","scienceBaseUri":"505bb26be4b08c986b3257bb","contributors":{"authors":[{"text":"Snee, L.W.","contributorId":99981,"corporation":false,"usgs":true,"family":"Snee","given":"L.W.","email":"","affiliations":[],"preferred":false,"id":368463,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sutter, J. F.","contributorId":59779,"corporation":false,"usgs":true,"family":"Sutter","given":"J.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":368462,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kelly, W.C.","contributorId":53963,"corporation":false,"usgs":true,"family":"Kelly","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":368461,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014149,"text":"70014149 - 1988 - Selenium in the Kendrick recalamation project, Wyoming","interactions":[],"lastModifiedDate":"2012-03-12T17:19:36","indexId":"70014149","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Selenium in the Kendrick recalamation project, Wyoming","docAbstract":"Elevated concentrations of selenium in water, bottom sediment, and biota were noted during a reconnaissance investigation of the Kendrick Reclamation Project in central Wyoming. Dissolved-selenium concentrations in 11 of 24 samples of surface or ground water exceeded the national drinking-water standard of 10 micrograms per liter. Bottom-sediment samples contained concentrations of several elements, including selenium, that were greater than baseline concentrations in soils of western states. Samples of biota from several trophic levels at four wetlands contained selenium at concentrations associated with physiological problems and abnormalities as reported in laboratory studies and previously published literature.","conferenceTitle":"Planning Now for Irrigation and Drainage in the 21st Century","conferenceDate":"18 July 1988 through 21 July 1988","conferenceLocation":"Lincoln, NE, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872626660","usgsCitation":"Peterson, D.A., 1988, Selenium in the Kendrick recalamation project, Wyoming, Planning Now for Irrigation and Drainage in the 21st Century, Lincoln, NE, USA, 18 July 1988 through 21 July 1988, p. 678-685.","startPage":"678","endPage":"685","numberOfPages":"8","costCenters":[],"links":[{"id":225939,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8cf7e4b08c986b3181e5","contributors":{"authors":[{"text":"Peterson, David A. davep@usgs.gov","contributorId":1742,"corporation":false,"usgs":true,"family":"Peterson","given":"David","email":"davep@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":367720,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013934,"text":"70013934 - 1988 - Composition and stable-isotope geochemistry of natural gases from Kansas, Midcontinent, U.S.A.","interactions":[],"lastModifiedDate":"2013-01-20T20:55:17","indexId":"70013934","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"Composition and stable-isotope geochemistry of natural gases from Kansas, Midcontinent, U.S.A.","docAbstract":"More than 28??1012 ft.3 (79??1010 m3) of natural gas and 5.3??109 bbl (8.4??108 m3) of oil have been produced in Kansas, U.S.A., from Paleozoic carbonate and sandstone reservoirs on structural uplifts and shallow embayments along the northern margin of the Anadarko basin. A heavily-explored, geologically well-characterized state, Kansas is an excellent place to study hydrocarbon migration and to test geochemical models for the origin of natural gases. Immature to marginally-mature rocks of eastern Kansas (Cherokee and Forest City basins) produce mixed microbial and thermogenic gases. Gases in this region have wetness = 0.03-51%, methane ??13C = -65 to -43??? and methane ??D = -260 to -150???. Gases from central and western Kansas (Nemaha uplift to Hugoton embayment) are entirely thermogenic and have wetness =4-51%, methane ??13C = -48 to -39??? and methane ??D = -195 to -140???. Ethane and propane ??13C-values throughout Kansas vary from -38 to -28??? and from -35 to -24???, respectively. Mature thermogenic gas (generated from source rocks in southwestern Kansas and the Anadarko basin with 1.0% ??? Ro ??? 1.4%) is recognized throughout the state. Lateral migration into shallow reservoirs on the Central Kansas and northern Nemaha uplifts and in the Cherokee basin probably occurred along basal Pennsylvanian conglomerates and weathered Lower Paleozoic carbonates at the regional sub-Pennsylvanian unconformity. Early thermogenic gas (generated by local source rocks with Ro ??? 0.7%) is recognized in isolated fields in the Salina and Forest City basins, in Ordovician reservoirs beneath the sub-Pennsylvanian unconformity in the Cherokee basin, and in reservoirs generally above the unconformity in the Cherokee and Sedgwick basins, the eastern Central Kansas uplift and the Hugoton embayment. ?? 1988.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0009-2541(88)90110-6","issn":"00092541","usgsCitation":"Jenden, P., Newell, K., Kaplan, I., and Watney, W., 1988, Composition and stable-isotope geochemistry of natural gases from Kansas, Midcontinent, U.S.A.: Chemical Geology, v. 71, no. 1-3, p. 117-147, https://doi.org/10.1016/0009-2541(88)90110-6.","startPage":"117","endPage":"147","numberOfPages":"31","costCenters":[],"links":[{"id":266093,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0009-2541(88)90110-6"},{"id":225543,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"71","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f922e4b0c8380cd4d45a","contributors":{"authors":[{"text":"Jenden, P.D.","contributorId":61176,"corporation":false,"usgs":true,"family":"Jenden","given":"P.D.","email":"","affiliations":[],"preferred":false,"id":367200,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Newell, K.D.","contributorId":76473,"corporation":false,"usgs":true,"family":"Newell","given":"K.D.","email":"","affiliations":[],"preferred":false,"id":367201,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kaplan, I.R.","contributorId":24086,"corporation":false,"usgs":true,"family":"Kaplan","given":"I.R.","email":"","affiliations":[],"preferred":false,"id":367198,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Watney, W.L.","contributorId":43087,"corporation":false,"usgs":true,"family":"Watney","given":"W.L.","email":"","affiliations":[],"preferred":false,"id":367199,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70013658,"text":"70013658 - 1988 - Bacterial ethane formation from reduced, ethylated sulfur compounds in anoxic sediments","interactions":[],"lastModifiedDate":"2020-03-06T06:31:00","indexId":"70013658","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Bacterial ethane formation from reduced, ethylated sulfur compounds in anoxic sediments","docAbstract":"<div id=\"abstracts\" class=\"Abstracts u-font-serif\"><div id=\"aep-abstract-id6\" class=\"abstract author\"><div id=\"aep-abstract-sec-id7\"><p>Trace levels of ethane were produced biologically in anoxic sediment slurries from five chemically different aquatic environments. Gases from these locations displayed biogenic characteristics, having<span>&nbsp;</span><sup>12</sup>C-enriched values of<span>&nbsp;</span><i>δ</i><sup>13</sup><i>CH</i><sub>4</sub><span>&nbsp;</span>(−62<span>&nbsp;</span><i>to</i><span>&nbsp;</span>−86%.),<span>&nbsp;</span><i>δ</i><sup>13</sup><i>C</i><sub>2</sub><i>H</i><sub>6</sub><span>&nbsp;</span>(−35<span>&nbsp;</span><i>to</i><span>&nbsp;</span>−55%.) and high ratios (720 to 140,000) of<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-1-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>CH</mtext><msub><mi></mi><mn>4</mn></msub><mtext>[C</mtext><msub><mi></mi><mn>2</mn></msub><mtext>H</mtext><msub><mi></mi><mn>6</mn></msub><mtext>+ C</mtext><msub><mi></mi><mn>3</mn></msub><mtext>H</mtext><msub><mi></mi><mn>8</mn></msub><mtext>]</mtext></math>\"><span class=\"MJX_Assistive_MathML\">CH4[C2H6+ C3H8]</span></span></span>. Endogenous production of ethane by slurries was inhibited by autoclaving or by addition of the inhibitor of methanogenic bacteria, 2-bromoethanesulfonic acid (BES). Ethane formation was stimulated markedly by ethanethiol (ESH), and, to a lesser extent, by diethylsulfide (DES). Formation of methane and ethane in ESH- or DES-amended slurries was blocked by BES. Experiments showed that ethionine (or an analogous compound) could be a precursor of ESH. Ethylamine or ethanol additions to slurries caused only a minor stimulation of ethane formation. Similarly, propanethiol additions resulted in only a minor enhancement of propane formation. Cell suspensions of a methyltrophic methanogen produced traces of ethane when incubated in the presence of DES, although the organism did not grow on this compound. These results indicate that methanogenic bacteria produce ethane from the traces of ethylated sulfur compounds present in recent sediments. Preliminary estimates of stable carbon isotope fractionation associated with sediment methane formation from dimethylsulfide was about 40%., while ethane formation from DES and ESH was only 4. 6 and 6.5%., respectively.</p></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(88)90013-0","issn":"00167037","usgsCitation":"Oremland, R., Whiticar, M.J., Strohmaier, F., and Kiene, R., 1988, Bacterial ethane formation from reduced, ethylated sulfur compounds in anoxic sediments: Geochimica et Cosmochimica Acta, v. 52, no. 7, p. 1895-1904, https://doi.org/10.1016/0016-7037(88)90013-0.","productDescription":"10 p.","startPage":"1895","endPage":"1904","numberOfPages":"10","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":219868,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"52","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ef9ee4b0c8380cd4a365","contributors":{"authors":[{"text":"Oremland, R.S.","contributorId":97512,"corporation":false,"usgs":true,"family":"Oremland","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":366577,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Whiticar, Michael J.","contributorId":72124,"corporation":false,"usgs":true,"family":"Whiticar","given":"Michael","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":366576,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Strohmaier, F.E.","contributorId":37893,"corporation":false,"usgs":true,"family":"Strohmaier","given":"F.E.","email":"","affiliations":[],"preferred":false,"id":366575,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kiene, R.P.","contributorId":33050,"corporation":false,"usgs":true,"family":"Kiene","given":"R.P.","affiliations":[],"preferred":false,"id":366574,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70014711,"text":"70014711 - 1988 - Conductive heat flux in VC-1 and the thermal regime of Valles caldera, Jemez Mountains, New Mexico","interactions":[],"lastModifiedDate":"2024-06-05T14:35:56.974184","indexId":"70014711","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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":"Conductive heat flux in VC-1 and the thermal regime of Valles caldera, Jemez Mountains, New Mexico","docAbstract":"<p><span>Over 5% of heat in the western United States is lost through Quaternary silicic volcanic centers, including the Valles caldera in north central New Mexico. These centers are the sites of major hydrothermal activity and upper crustal metamorphism, metasomatism, and mineralization, producing associated geothermal resources. We present new heat flow data from Valles caldera core hole 1 (VC-1), drilled in the southwestern margin of the Valles caldera. Thermal conductivities were measured on 55 segments of core from VC-1, waxed and wrapped to preserve fluids. These values were combined with temperature gradient data to calculate heat flow. Above 335 m, which is probably unsaturated, heat flow is 247±16 mW m</span><sup>−2</sup><span>. The only deep temperature information available is from an uncalibrated commercial log made 19 months after drilling. Gradients, derived from uncalibrated temperature logs, and conductivities are inversely correlated between 335 and 737 m, indicating a conductive thermal regime, and component heat fluxes over three depth intervals (335–539 m, 549–628 m, and 628–737 m) are in excellent agreement with each other with an average of 504±15 mW m</span><sup>−2</sup><span>. Temperature logs to 518 m depth with well-calibrated temperature sensors result in a revised heat flow of 463±15 mW m. We use shallow thermal gradient data from 75 other sites in and around the caldera to interpret the thermal regime at the VC-1 site. A critical review of published thermal conductivity data from the Valles caldera yields an average thermal conductivity of ≥1 W m</span><sup>−1</sup><span>&nbsp;K</span><sup>−1</sup><span>&nbsp;for the near-surface tuffaceous material, and we assume that shallow gradient values (°C km</span><sup>−1</sup><span>) are approximately numerically equal to heat flow (mW m</span><sup>−2</sup><span>). Heat loss from the caldera is asymmetrically distributed, with higher values (400 mW m</span><sup>−2</sup><span>&nbsp;or higher) concentrated in the west-southwestern quadrant of the caldera. This quadrant also contains the main drainage from the caldera and the youngest volcanism associated with the caldera. We interpret the shallow thermal gradient data and the thermal regime at VC-1 to indicate a long-lived hydrothermal (and magmatic) system in the southwestern Valles caldera that has been maintained through the generation of shallow magma bodies during the long postcollapse history of the caldera. High heat flow at the VC-1 site is interpreted to result from hot water circulating below the base of the core hole, and we attribute the lower heat flow in the unsaturated zone to hydrologic recharge.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB093iB06p06027","issn":"01480227","usgsCitation":"Sass, J., and Morgan, P., 1988, Conductive heat flux in VC-1 and the thermal regime of Valles caldera, Jemez Mountains, New Mexico: Journal of Geophysical Research Solid Earth, v. 93, no. B6, p. 6027-6039, https://doi.org/10.1029/JB093iB06p06027.","productDescription":"13 p.","startPage":"6027","endPage":"6039","numberOfPages":"13","costCenters":[],"links":[{"id":225656,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"B6","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5059f9b9e4b0c8380cd4d753","contributors":{"authors":[{"text":"Sass, J.H.","contributorId":70749,"corporation":false,"usgs":true,"family":"Sass","given":"J.H.","email":"","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":369067,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morgan, P.","contributorId":34096,"corporation":false,"usgs":false,"family":"Morgan","given":"P.","email":"","affiliations":[],"preferred":false,"id":369066,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013695,"text":"70013695 - 1988 - Photolysis of rhodamine-WT dye","interactions":[],"lastModifiedDate":"2023-09-08T14:44:52.062722","indexId":"70013695","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1226,"text":"Chemosphere","active":true,"publicationSubtype":{"id":10}},"title":"Photolysis of rhodamine-WT dye","docAbstract":"<p><span>Photolysis of rhodamine-WT dye under natural sunlight conditions was determined by measuring the loss of fluorescence as a function of time. Rate coefficients at 30° north latitude ranged from 4.77 × 10</span><sup>−2</sup><span>&nbsp;day</span><sup>−1</sup><span>&nbsp;for summer to 3.16 × 10</span><sup>−2</sup><span>&nbsp;day</span><sup>−2</sup><span>&nbsp;for winter. Experimental coefficients were in good agreement with values calculated using a laboratory-determined value of the quantum yield.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0045-6535(88)90031-8","usgsCitation":"Tai, D.Y., and Rathbun, R.E., 1988, Photolysis of rhodamine-WT dye: Chemosphere, v. 17, no. 3, p. 559-573, https://doi.org/10.1016/0045-6535(88)90031-8.","productDescription":"15 p.","startPage":"559","endPage":"573","numberOfPages":"15","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":220444,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7a2ae4b0c8380cd78d80","contributors":{"authors":[{"text":"Tai, D. Y.","contributorId":59778,"corporation":false,"usgs":true,"family":"Tai","given":"D.","email":"","middleInitial":"Y.","affiliations":[],"preferred":false,"id":366658,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rathbun, R. E.","contributorId":61796,"corporation":false,"usgs":true,"family":"Rathbun","given":"R.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":366659,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014371,"text":"70014371 - 1988 - Shocked quartz grains at the Cretaceous-Tertiary boundary - Not volcanic or atmospherically transported","interactions":[],"lastModifiedDate":"2012-03-12T17:19:31","indexId":"70014371","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1390,"text":"Die Naturwissenschaften","active":true,"publicationSubtype":{"id":10}},"title":"Shocked quartz grains at the Cretaceous-Tertiary boundary - Not volcanic or atmospherically transported","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Die Naturwissenschaften","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF00367322","issn":"00281042","usgsCitation":"Seitz, R., and Bohor, B., 1988, Shocked quartz grains at the Cretaceous-Tertiary boundary - Not volcanic or atmospherically transported: Die Naturwissenschaften, v. 75, no. 6, p. 307-308, https://doi.org/10.1007/BF00367322.","startPage":"307","endPage":"308","numberOfPages":"2","costCenters":[],"links":[{"id":205624,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00367322"},{"id":225376,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"75","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8e7fe4b08c986b318996","contributors":{"authors":[{"text":"Seitz, R.","contributorId":17771,"corporation":false,"usgs":true,"family":"Seitz","given":"R.","email":"","affiliations":[],"preferred":false,"id":368238,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bohor, B.F.","contributorId":96351,"corporation":false,"usgs":true,"family":"Bohor","given":"B.F.","email":"","affiliations":[],"preferred":false,"id":368239,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014135,"text":"70014135 - 1988 - Distribution of selected trace and major elements around the massive sulfide deposit at the Penn mine, California","interactions":[],"lastModifiedDate":"2024-01-05T16:21:12.679403","indexId":"70014135","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Distribution of selected trace and major elements around the massive sulfide deposit at the Penn mine, California","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.83.2.419","issn":"03610128","usgsCitation":"Peterson, J., 1988, Distribution of selected trace and major elements around the massive sulfide deposit at the Penn mine, California: Economic Geology, v. 83, no. 2, p. 419-427, https://doi.org/10.2113/gsecongeo.83.2.419.","productDescription":"9 p.","startPage":"419","endPage":"427","numberOfPages":"9","costCenters":[],"links":[{"id":225686,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"83","issue":"2","noUsgsAuthors":false,"publicationDate":"1988-04-01","publicationStatus":"PW","scienceBaseUri":"505a0300e4b0c8380cd502c2","contributors":{"authors":[{"text":"Peterson, J.A.","contributorId":76308,"corporation":false,"usgs":true,"family":"Peterson","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":367679,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014331,"text":"70014331 - 1988 - Composition of massive sulfide deposits from the sediment-covered floor of Escanaba Trough, Gorda Ridge: implications for depositional processes","interactions":[],"lastModifiedDate":"2012-03-12T17:19:30","indexId":"70014331","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1177,"text":"Canadian Mineralogist","active":true,"publicationSubtype":{"id":10}},"title":"Composition of massive sulfide deposits from the sediment-covered floor of Escanaba Trough, Gorda Ridge: implications for depositional processes","docAbstract":"Massive sulfide deposits with two distinct compositions are spatially related to volcanic edifices that penetrate up to 500 m of turbiditic sediment in Escanaba Trough (ET), southern Gorda Ridge. The mineralogy, metal content, sulfur isotope composition, and hydrocarbon content of massive sulfides from ET reflect the extensive interaction between underlying turbiditic sediment and hydrothermal fluid. Pyrrhotite-rich sulfide mounds are inferred to have formed under gentle temperature and chemical gradients related to diffuse, low-velocity flow through disrupted sediment near the sediment-capped hills.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Mineralogist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"conferenceTitle":"Seafloor Hydrothermal Mineralization","conferenceDate":"5 February 1987 through 6 February 1987","conferenceLocation":"Montreal, Que, Can","language":"English","issn":"00084476","usgsCitation":"Koski, R.A., Shanks, W.C., Bohrson, W.A., and Oscarson, R.L., 1988, Composition of massive sulfide deposits from the sediment-covered floor of Escanaba Trough, Gorda Ridge: implications for depositional processes: Canadian Mineralogist, v. 26 pt 3, p. 655-673.","startPage":"655","endPage":"673","numberOfPages":"19","costCenters":[],"links":[{"id":225631,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26 pt 3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f929e4b0c8380cd4d48a","contributors":{"authors":[{"text":"Koski, Randolph A. rkoski@usgs.gov","contributorId":2949,"corporation":false,"usgs":true,"family":"Koski","given":"Randolph","email":"rkoski@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":368134,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shanks, Wayne C. III","contributorId":53432,"corporation":false,"usgs":true,"family":"Shanks","given":"Wayne","suffix":"III","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":368136,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bohrson, Wendy A.","contributorId":55024,"corporation":false,"usgs":true,"family":"Bohrson","given":"Wendy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":368137,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Oscarson, Robert L. roscarson@usgs.gov","contributorId":3390,"corporation":false,"usgs":true,"family":"Oscarson","given":"Robert","email":"roscarson@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":368135,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70014460,"text":"70014460 - 1988 - Determining the distribution of hydraulic conductivity in a fractured limestone aquifer by simultaneous injection and geophysical logging","interactions":[],"lastModifiedDate":"2020-01-17T17:12:59","indexId":"70014460","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Determining the distribution of hydraulic conductivity in a fractured limestone aquifer by simultaneous injection and geophysical logging","docAbstract":"A field technique for assessing the vertical distribution of hydraulic conductivity in an aquifer was applied to a fractured carbonate formation in southeastern Nevada. The technique combines the simultaneous use of fluid injection and geophysical logging to measure in situ vertical distributions of fluid velocity and hydraulic head down the borehole; these data subsequently are analyzed to arrive at quantitative estimates of hydraulic conductivity across discrete intervals in the aquifer. The results of this analysis identified the contact margin between the Anchor and Dawn Members of the Monte Cristo Limestone as being the dominant transmissive unit. -from Authors","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6584.1988.tb00792.x","issn":"0017467X","usgsCitation":"Morin, R.H., Hess, A., and Paillet, F.L., 1988, Determining the distribution of hydraulic conductivity in a fractured limestone aquifer by simultaneous injection and geophysical logging: Ground Water, v. 26, no. 5, p. 587-595, https://doi.org/10.1111/j.1745-6584.1988.tb00792.x.","productDescription":"9 p.","startPage":"587","endPage":"595","numberOfPages":"9","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":225896,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -114.521484375,\n              35.24561909420681\n            ],\n            [\n              -113.99414062499999,\n              39.06184913429154\n            ],\n            [\n              -113.8623046875,\n              40.04443758460856\n            ],\n            [\n              -118.828125,\n              39.36827914916014\n            ],\n            [\n              -117.6416015625,\n              37.055177106660814\n            ],\n            [\n              -114.521484375,\n              35.24561909420681\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"26","issue":"5","noUsgsAuthors":false,"publicationDate":"2006-03-21","publicationStatus":"PW","scienceBaseUri":"5059fff5e4b0c8380cd4f4cf","contributors":{"authors":[{"text":"Morin, Roger H. rhmorin@usgs.gov","contributorId":2432,"corporation":false,"usgs":true,"family":"Morin","given":"Roger","email":"rhmorin@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":779727,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hess, A.E.","contributorId":71979,"corporation":false,"usgs":true,"family":"Hess","given":"A.E.","email":"","affiliations":[],"preferred":false,"id":368447,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Paillet, Frederick L.","contributorId":63820,"corporation":false,"usgs":true,"family":"Paillet","given":"Frederick","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":368446,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013748,"text":"70013748 - 1988 - Paleoecology of Middle Pennsylvanian-age peat-swamp plants in Herrin coal, Kentucky, U.S.A.","interactions":[],"lastModifiedDate":"2024-02-23T01:08:01.338354","indexId":"70013748","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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":"Paleoecology of Middle Pennsylvanian-age peat-swamp plants in Herrin coal, Kentucky, U.S.A.","docAbstract":"<div id=\"preview-section-abstract\"><div id=\"abstracts\" class=\"Abstracts u-font-serif text-s\"><div id=\"aep-abstract-id3\" class=\"abstract author\"><div id=\"aep-abstract-sec-id4\"><p>To develop a method for quantifying the vegetation of Pennsylvania-age coal beds, of four coal-ball (permineralized peat) profiles and four coal column samples from the Herrin coal bed (Kentucky No. 11) Carbondale Formation in western Kentucky were compared. An estimated 89.5% of the coal can be identified botanically. Compaction ratios for individual tissues were estimated using point counts of organic matter in coal balls. The estimated abundances of major plant groups (lycopods, ferns, sphenopsids, and pteridosperms) in coal balls differ by less than 10% compared to coal after accounting for differential compaction of plant tissues. Standard deviations in taxonomic and maceral composition among coal columns are generally less than 2%.</p><p>Consistent differences in botanical composition were found between benches showing that the method is consistent when applied to sufficient thicknesses of coal. It was not possible to make fine-scale correlations within the coal bed using the vegetational data; either the flora varied considerably from place to place or the method of quantification is unreliable for small increments of coal (5 cm or less).</p><p>In the coal, pteridosperm abundance is positively correlated with underlying shale partings. This correlation suggests that pteridosperms are favored either by higher nutrient levels or disturbance.</p><p>In the third of four benches in the Herrin coal bed, a succession from<span>&nbsp;</span><i>Sigillaria</i>-containing zones to zones dominated by<span>&nbsp;</span><i>Lepidophloios hallii</i><span>&nbsp;</span>is interpreted as a shift towards wetter conditions. In the other benches, the main factors controlling the taxonomic composition appear to have been the relative abundance of nutrients and/or the frequency of disturbance as indicated by the relative abundance of partings.</p><p>Criteria for distinguishing between domed and planar swamps are discussed. These include: distribution of partings, type of plant succession, and changes in plant diversity, average plant size, preservational quality and sporinite content. The infrequency of partings in bench C suggests a peat dome developed while the peat of that bench was accumulating but other evidence either fails to support the development of a peat dome or is ambiguous. The maceral composition resembles those of other Carboniferous coals which are thought to have formed from planar peat swamps.</p><p>Formation of fusain bands appears to be associated with processes occurring above the peat surface, such as burning or prolonged oxidative exposure. Oxidation of accumulated peat is unlikely because fusain bands rarely include more than a single plant.</p></div></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/0166-5162(88)90020-1","issn":"01665162","usgsCitation":"Winston, R., 1988, Paleoecology of Middle Pennsylvanian-age peat-swamp plants in Herrin coal, Kentucky, U.S.A.: International Journal of Coal Geology, v. 10, no. 3, p. 203-238, https://doi.org/10.1016/0166-5162(88)90020-1.","productDescription":"36 p.","startPage":"203","endPage":"238","numberOfPages":"36","costCenters":[],"links":[{"id":220556,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a73d9e4b0c8380cd772a9","contributors":{"authors":[{"text":"Winston, R.B.","contributorId":32950,"corporation":false,"usgs":true,"family":"Winston","given":"R.B.","email":"","affiliations":[],"preferred":false,"id":366785,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013653,"text":"70013653 - 1988 - The surface integral approach to Radarclinometry","interactions":[],"lastModifiedDate":"2012-03-12T17:18:32","indexId":"70013653","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1429,"text":"Earth, Moon and Planets","active":true,"publicationSubtype":{"id":10}},"title":"The surface integral approach to Radarclinometry","docAbstract":"Because radarclinometry is fundamentally describable in terms of a nonlinear, first-order, partial differential equation, one expects that it can, in principle, be carried out by direct deterministic integration beginning at a given threshold profile along the azimuthal coordinate. Such a boundary condition could be provided by the altimetry profile obtained on a preceding or succeeding orbital revolution of the radar-bearing spacecraft. Notwithstanding the mismatched resolutions of the radar altimeter and the radar imaging system as planned for the Megallan mission to Venus, there are fundamental considerations, not involving system noise, that influence the possibility of success of this approach. From the topographic map of the Lake Champlain West quadrangle in the Adirondack Mountains of the U.S., a radar image is synthesized. Radarclinometry, in surface integral form, recaptures the topographic map when the applicable radar reflectance function is weakly variable over the range of application, but it diverges beyond a certain point for nominally variable reflectance functions. The effect can be understood by using results from the \"shape-from-shading\" literature. (This literature is produced by a group within the artificial intelligence community who have been independently attacking, for all practical purposes, photoclinometry, except that they have not given primacy to images of terrain.) The ubiquity of the instability suggests that the value of the surface integral approach is much in doubt. ?? 1988 Kluwer Academic Publishers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earth, Moon and Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF00056399","issn":"01679295","usgsCitation":"Wildey, R., 1988, The surface integral approach to Radarclinometry: Earth, Moon and Planets, v. 41, no. 2, p. 141-153, https://doi.org/10.1007/BF00056399.","startPage":"141","endPage":"153","numberOfPages":"13","costCenters":[],"links":[{"id":220659,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":205049,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00056399"}],"volume":"41","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb0a9e4b08c986b324fd5","contributors":{"authors":[{"text":"Wildey, R.L.","contributorId":9700,"corporation":false,"usgs":true,"family":"Wildey","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":366567,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014427,"text":"70014427 - 1988 - Three decades of geochronologic studies in the New England Appalachians","interactions":[],"lastModifiedDate":"2023-12-28T00:47:23.85719","indexId":"70014427","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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":"Three decades of geochronologic studies in the New England Appalachians","docAbstract":"<p>Over the past 30 years, both isotope geochronology and plate tectonics grew from infancy into authoritative disciplines in the geological sciences. Previously, mountain systems like the Appalachians had been viewed almost entirely in the context of the classical geosyncline, implying a gradualism in stratigraphic and structural change throughout the orogen. Age control, determined largely from distant fossiliferous strata, was unabashedly carried to high-grade metamorphic rocks based only on lithological correlations. With the new concepts in tectonics came the realization that abrupt breaks in stratigraphy and structure occur in many cases at the boundaries of lithotectonic zones. Fortunately, the new techniques of isotope geochronology could be brought to bear directly on the rocks of the immediate study area. This paper chronicles some of the major contributions to the geology of the New England Appalachians that resulted from these efforts during the past three decades.</p><p>In tracing the history of geochronologic research, one encounters an increasingly sophisticated approach to the analytical and interpretive aspects of the discipline. Today, the geochronologist can, under optimum conditions, constrain the age of stratigraphic units, igneous activity, deformation, and metamorphism with accuracy that is capable of resolving fine structure within individual orogenic pulses. He participates in full partnership with other colleagues of the science in unravelling the mysteries of mountain building. Several of the topical problems of New England geology in which geochronology played a key role include (1) the recognition and delineation of Avalonia as a Late Proterozoic eastern basement distinct from more western terranes, (2) the dating of the White Mountain Plutonic-Volcanic Suite, a Mesozoic igneous event spanning 100 m.y., and (3) the temporal and spatial separation of structural and metamorphic features imprinted by the Taconic and Acadian orogenies.</p><p>The existing geochronology is summarized into a map and table emphasizing the temporal construction of the New England Appalachians. By using lithotectonic zones as the building blocks of the orogen, seven such zones are defined in terms of pre-, syn-, and post-assembly geologic history. From west to east, these lithotectonic zones are (1) Berkshire-Green Mountain, (2) Rowe-Hawley, (3) Connecticut Valley, (4) Bronson Hill, (5) Kearsarge-Central Maine, (6) Tatnic Hill-Nashoba, and (7) Avalonia. Avalonia is further divided into three subzones, Hope Valley, Esmond-Dedham, and Penobscot Bay, which themselves may have had distinct origins and assembly histories. The boundaries between these zones are faults in most cases, some of which may have had recurring movement to further complicate any plate-tectonic scenario.</p><p>A delineation of underlying Grenvillian, Chain Lakes, and Avalonian basement is also attempted, which now can make use of isotopes in igneous rocks as petrogenetic indicators to supplement the rare occurrences of basement outcrop within mobile zones of the orogen. The belt of Permian thermal disturbance within the Kearsarge-Central Maine zone is hypothesized to reflect rapid rebound following compressional thickening of underlying Avalonian basement during the Alleghanian orogeny.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1988)100<1168:TDOGSI>2.3.CO;2","usgsCitation":"Zartman, R., 1988, Three decades of geochronologic studies in the New England Appalachians: Geological Society of America Bulletin, v. 100, no. 8, p. 1168-1180, https://doi.org/10.1130/0016-7606(1988)100<1168:TDOGSI>2.3.CO;2.","productDescription":"13 p.","startPage":"1168","endPage":"1180","numberOfPages":"13","costCenters":[],"links":[{"id":225378,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -81.63967460992868,\n              37.399849628117494\n            ],\n            [\n              -69.51076835992886,\n              37.399849628117494\n            ],\n            [\n              -69.51076835992886,\n              45.732269412431236\n            ],\n            [\n              -81.63967460992868,\n              45.732269412431236\n            ],\n            [\n              -81.63967460992868,\n              37.399849628117494\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"100","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb307e4b08c986b325b34","contributors":{"authors":[{"text":"Zartman, R. E.","contributorId":15632,"corporation":false,"usgs":true,"family":"Zartman","given":"R. E.","affiliations":[],"preferred":false,"id":368375,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013745,"text":"70013745 - 1988 - Oxygen isotope variations in granulite-grade iron formations: constraints on oxygen diffusion and retrograde isotopic exchange","interactions":[],"lastModifiedDate":"2012-03-12T17:18:28","indexId":"70013745","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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":"Oxygen isotope variations in granulite-grade iron formations: constraints on oxygen diffusion and retrograde isotopic exchange","docAbstract":"The oxygen isotope ratios of various minerals were measured in a granulite-grade iron formation in the Wind River Range, Wyoming. Estimates of temperature and pressure for the terrane using well calibrated geothermometers and geobarometers are 730??50?? C and 5.5??0.5 kbar. The mineral constraints on fluid compositions in the iron formation during retrogression require either very CO2-rich fluids or no fluid at all. In the iron formation, isotopic temperature estimates from quartz-magnetite fractionations are controlled by the proximity to the enclosing granitic gneiss, and range from 500?? C (??qz - mt=10.0???) within 2-3 meters of the orthogneiss contact to 600?? C (??qz - mt=8.0???) farther from the contact. Temperature estimates from other isotopic thermometers are in good agreement with those derived from the quartz-magnetite fractionations. During prograde metamorphism, the isotopic composition of the iron formation was lowered by the infiltration of an external fluid. Equilibrium was achieved over tens of meters. Closed-system retrograde exchange is consistent with the nearly constant whole-rock ??18Owr value of 8.0??0.6???. The greater ??qz-mt values in the iron formation near the orthogneiss contact are most likely due to a lower oxygen blocking temperature related to greater exchange-ability of deformed minerals at the contact. Cooling rates required to preserve the quartz-magnetite fractionations in the central portion of the iron formation are unreasonably high (???800?? C/Ma). In order to preserve the 600?? C isotopic temperature, the diffusion coefficient D (for ??-quartz) should be two orders of magnitude lower than the experimentally determined value of 2.5??10-16 cm2/s at 833 K. There are no values for the activation energy (Q) and pre-exponential diffusion coefficient (D0), consistent with the experimentally determined values, that will result in reasonable cooling rates for the Wind River iron formation. The discrepancy between the diffusion coefficient inferred from the Wind River terrane and that measured experimentally is almost certainly due to the enhancement of exchange by the presence of water in the laboratory experiments. Cooling rate estimates were also determined for iron formation retrograded under water-rich conditions. Application of the experimentally determined data to these rocks results in a reasonable cooling rate estimate, supporting the conclusion that the presence of water greatly enhances oxygen diffusion. ?? 1988 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/BF00372366","issn":"00107999","usgsCitation":"Sharp, Z., O’Neil, J.R., and Essene, E., 1988, Oxygen isotope variations in granulite-grade iron formations: constraints on oxygen diffusion and retrograde isotopic exchange: Contributions to Mineralogy and Petrology, v. 98, no. 4, p. 490-501, https://doi.org/10.1007/BF00372366.","startPage":"490","endPage":"501","numberOfPages":"12","costCenters":[],"links":[{"id":480008,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/2027.42/47346>","text":"External Repository"},{"id":205039,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00372366"},{"id":220500,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"98","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a72ade4b0c8380cd76c28","contributors":{"authors":[{"text":"Sharp, Z.D.","contributorId":58391,"corporation":false,"usgs":true,"family":"Sharp","given":"Z.D.","email":"","affiliations":[],"preferred":false,"id":366780,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Neil, J. R.","contributorId":69633,"corporation":false,"usgs":true,"family":"O’Neil","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":366781,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Essene, E.J.","contributorId":91625,"corporation":false,"usgs":true,"family":"Essene","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":366782,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014820,"text":"70014820 - 1988 - EFFECTS OF METEOROLOGICAL CHANGES ON CONCENTRATIONS OF HELIUM, CARBON DIOXIDE, AND OXYGEN IN SOIL GASES.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:31","indexId":"70014820","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"EFFECTS OF METEOROLOGICAL CHANGES ON CONCENTRATIONS OF HELIUM, CARBON DIOXIDE, AND OXYGEN IN SOIL GASES.","docAbstract":"Samples were collected from a hollow probe at 0. 75-m depth and from a plastic hemisphere on the ground surface. Soil temperature, air temperature, percent humidity, and barometric pressure were also measured. Soil moisture was measured only indirectly as amount of rain or snowfall. Higher concentrations of CO//2 in both the 0. 75-m and surface samples correlated with higher soil and air temperatures, which suggests that CO//2 was produced by bacteria. Lower concentrations of helium in both the 0. 75-m and surface samples correlated with higher soil and air temperatures. Rain and snowfall appear to affect helium concentrations.","largerWorkTitle":"Preprint - Society of Mining Engineers of AIME","conferenceDate":"2 October 1986 through 3 October 1986","conferenceLocation":"Luxembourg, Luxemb","language":"English","publisher":"Soc of Mining Engineers of AIME","publisherLocation":"Littleton, CO, USA","usgsCitation":"Hinkle, M.E., and Ryder, J.L., 1988, EFFECTS OF METEOROLOGICAL CHANGES ON CONCENTRATIONS OF HELIUM, CARBON DIOXIDE, AND OXYGEN IN SOIL GASES., <i>in</i> Preprint - Society of Mining Engineers of AIME, Luxembourg, Luxemb, 2 October 1986 through 3 October 1986.","numberOfPages":"8","costCenters":[],"links":[{"id":226249,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a045ae4b0c8380cd5091f","contributors":{"editors":[{"text":"Grayson S.J.Smith D.A.","contributorId":128451,"corporation":true,"usgs":false,"organization":"Grayson S.J.Smith D.A.","id":536295,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Hinkle, M. E.","contributorId":11612,"corporation":false,"usgs":true,"family":"Hinkle","given":"M.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":369361,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ryder, J. L.","contributorId":30997,"corporation":false,"usgs":true,"family":"Ryder","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":369362,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014725,"text":"70014725 - 1988 - The distribution, structure, and composition of freshwater ice deposits in Bolivian salt lakes","interactions":[],"lastModifiedDate":"2012-03-12T17:19:32","indexId":"70014725","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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 distribution, structure, and composition of freshwater ice deposits in Bolivian salt lakes","docAbstract":"Freshwater ice deposits are described from seven, high elevation (4117-4730 m), shallow (mean depth <30 cm), saline (10-103 g l-1) lakes in the southwestern corner of Bolivia. The ice deposits range to several hundred meters in length and to 7 m in height above the lake or playa surface. They are located near the lake or salar margins; some are completely surrounded by water, others by playa deposits or salt crusts. Upper surfaces and sides of the ice deposits usually are covered by 20-40 cm of white to light brown, dry sedimentary materials. Calcite is the dominant crystalline mineral in these, and amorphous materials such as diatom frustules and volcanic glass are also often abundant. Beneath the dry overburden the ice occurs primarily as horizontal lenses 1-1000 mm thick, irregularly alternating with strata of frozen sedimentary materials. Ice represents from 10 to 87% of the volume of the deposits and yields freshwater (TFR <3 g l-1) when melted. Oxygen isotope ratios for ice are similar to those for regional precipitation and shoreline seeps but much lower than those for the lakewaters. Geothermal flux is high in the region as evidenced by numerous hot springs and deep (3.0-3.5 m) sediment temperatures of 5-10??C. This flux is one cause of the present gradual wasting away of these deposits. Mean annual air temperatures for the different lakes probably are all in the range of -2 to 4??C, and mean midwinter temperatures about 5??C lower. These deposits apparently formed during colder climatic conditions by the freezing of low salinity porewaters and the building up of segregation ice lenses. ?? 1988 Dr W. Junk Publishers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrobiologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF00026285","issn":"00188158","usgsCitation":"Hurlbert, S.H., and Chang, C.C., 1988, The distribution, structure, and composition of freshwater ice deposits in Bolivian salt lakes: Hydrobiologia, v. 158, no. 1, p. 271-299, https://doi.org/10.1007/BF00026285.","startPage":"271","endPage":"299","numberOfPages":"29","costCenters":[],"links":[{"id":205666,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00026285"},{"id":225911,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"158","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baae1e4b08c986b322a91","contributors":{"authors":[{"text":"Hurlbert, S. H.","contributorId":56192,"corporation":false,"usgs":false,"family":"Hurlbert","given":"S.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":369134,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chang, Cecily C.Y.","contributorId":68032,"corporation":false,"usgs":true,"family":"Chang","given":"Cecily","email":"","middleInitial":"C.Y.","affiliations":[],"preferred":false,"id":369135,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014302,"text":"70014302 - 1988 - Evidence for a new geomagnetic reversal from lava flows in Idaho: Discussion of short polarity reversals in the Brunhes and late Matuyama polarity chrons","interactions":[],"lastModifiedDate":"2024-06-05T15:44:45.961576","indexId":"70014302","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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":"Evidence for a new geomagnetic reversal from lava flows in Idaho: Discussion of short polarity reversals in the Brunhes and late Matuyama polarity chrons","docAbstract":"<p><span>K-Ar ages and paleomagnetic data for basalt samples from a new core hole (site E) at the Idaho National Engineering Laboratory (INEL) indicate that the age of the reversed polarity event recorded in Snake River Plain lavas is older than 465±50 ka (1000 years before present) reported previously by Champion et al. (1981). Nine basalt flows, eight with normal polarity and one with reversed polarity, were recognized in the site E core hole. The flows above and below the reversed flow have ages of 491±80 ka and 580±93 ka, respectively. The inclination of the paleomagnetic field direction of the reversed flow at site E agrees with the inclination of reversed flows elsewhere at INEL which have an age of 565±14 ka. These reversed flows were previously thought to be correlative with the Emperor event. We suggest that this polarity event is an older event which we name the Big Lost Reversed Polarity Subchronozone and Subchron. A review of data documenting short reversal records from volcanic and sedimentary rocks shows that there is evidence for eight polarity subchrons in the Brunhes and two besides the Jaramillo in the late Matuyama. These 10 short subchrons begin to indicate the many short events that Cox (1968) hypothesized must exist if polarity interval lengths have a Poisson distribution. These events are true subchrons, not excursions, and may or may not have low associated paleointensities, although low field strengths might explain why the reversal process aborts. The mean sustained polarity interval length since late Matuyama Chron time is 90,000 years. The similarity of this number with the 10</span><sup>5</sup><span>-year period of the Earth's orbital eccentricity suggests anew that linkage between geomagnetic, paleoclimatic, and possible underlying Earth orbital parameters should be evaluated.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB093iB10p11667","issn":"01480227","usgsCitation":"Champion, D., Lanphere, M.A., and Kuntz, M.A., 1988, Evidence for a new geomagnetic reversal from lava flows in Idaho: Discussion of short polarity reversals in the Brunhes and late Matuyama polarity chrons: Journal of Geophysical Research Solid Earth, v. 93, no. B10, p. 11667-11680, https://doi.org/10.1029/JB093iB10p11667.","productDescription":"14 p.","startPage":"11667","endPage":"11680","costCenters":[],"links":[{"id":226146,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"B10","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a0d2fe4b0c8380cd52e73","contributors":{"authors":[{"text":"Champion, D.E.","contributorId":70402,"corporation":false,"usgs":true,"family":"Champion","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":368073,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lanphere, M. A.","contributorId":35298,"corporation":false,"usgs":true,"family":"Lanphere","given":"M.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":368072,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kuntz, M. A.","contributorId":33323,"corporation":false,"usgs":true,"family":"Kuntz","given":"M.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":368071,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014300,"text":"70014300 - 1988 - Ostwald ripening and interparticle-diffraction effects for illite crystals","interactions":[],"lastModifiedDate":"2012-03-12T17:19:36","indexId":"70014300","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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":"Ostwald ripening and interparticle-diffraction effects for illite crystals","docAbstract":"The Warren-Averbach method, an X-ray diffraction (XRD) method used to measure mean particle thickness and particle-thickness distribution, is used to restudy sericite from the Silverton caldera. Apparent particle-thickness distributions indicate that the clays may have undergone Ostwald ripening and that this process has modified the K-Ar ages of the samples. The mechanism of Ostwald ripening can account for many of the features found for the hydrothermal alteration of illite. Expandabilities measured by the XRD peak-position method for illite/smectites (I/S) from various locations are smaller than expandabilities measured by transmission electron microscopy (TEM) and by the Warren-Averbach (W-A) method. This disparity is interpreted as being related to the presence of nonswelling basal surfaces that form the ends of stacks of illite particles (short-stack effect), stacks that, according to the theory of interparticle diffraction, diffract as coherent X-ray scattering domains. -from Authors","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Mineralogist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0003004X","usgsCitation":"Eberl, D.D., and Srodon, J., 1988, Ostwald ripening and interparticle-diffraction effects for illite crystals: American Mineralogist, v. 73, no. 11-12, p. 1335-1345.","startPage":"1335","endPage":"1345","numberOfPages":"11","costCenters":[],"links":[{"id":226144,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"73","issue":"11-12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7162e4b0c8380cd765bc","contributors":{"authors":[{"text":"Eberl, D. D.","contributorId":66282,"corporation":false,"usgs":true,"family":"Eberl","given":"D.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":368068,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Srodon, J.","contributorId":67583,"corporation":false,"usgs":false,"family":"Srodon","given":"J.","affiliations":[],"preferred":false,"id":368069,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013291,"text":"70013291 - 1988 - Tectonic history of the Syria Planum province of Mars","interactions":[],"lastModifiedDate":"2024-06-05T15:55:17.508941","indexId":"70013291","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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":"Tectonic history of the Syria Planum province of Mars","docAbstract":"<p><span>We attribute most of the development of extensive fractures in the Tharsis region to discrete tectonic provinces within the region, rather than to Tharsis as a single entity. One of these provinces is in Syria Planum. Faults and collapse structures in the Syria Planum tectonic province on Mars are grouped into 13 sets based on relative age, areal distribution, and morphology. According to superposition and fault crosscutting relations and crater counts we designate six distinct episodes of tectonic activity in the following chronologic order: stage I is an early to late Noachian deformation forming mostly east-west structures (fault set IA); some large volcanoes also formed. Faults were produced possibly by flexural uplift. Also, arcuate, north trending grabens (set IB) indicate that faulting is transitional to the next stage. Stage II is late Noachian to early Hesperian radial faulting centered in Syria Planum, possibly due to isostatic uplift in late Noachian (set IIA) to early Hesperian (set IIB) time. Stage III is early to late Hesperian faulting tangential to Syria Planum that was related to local centers of uplift (sets III1-III3) on the periphery of Syria Planum. Stage IV is a late Hesperian graben formation that was circumferential to Syria Planum (set IVA), caused either by collapse associated with eruption of magma or by flexure of the lithosphere due to volcanic loading. In association with volcanism, minor faulting occurred, producing an oval pattern of faults in southwest Syria Planum (set IVBl) and a radial pattern south of the planum (set IVB2) that apparently rejuvenated buried stage II faults. Stage V is a late Hesperian to early Amazonian development of grabens and troughs of Noctis Labyrinthus and western Valles Marineris (set V) that was probably instigated by local uplift; exposure of groundwater or ground ice zones may have produced further collapse and trough enlargement. Stage VI is early Amazonian northwest trending faulting in Noctis Fossae (set VIl), perhaps due to Tharsis Monies-centered tectonism, and north northwest normal faulting along the eastern side of the Claritas rise (set VI2) that was due to tectonic subsidence. The duration of tectonic activity in the Syria Planum province was perhaps 2–3 b.y. Photoclinometric topographic profiles across 132 grabens and fault scarps show that Syria Planum grabens have widths (average of 2.5 km, and most range from 1 to 6 km) similar to lunar grabens, but the Martian grabens have slightly higher side walls (average about 132 m) and gentler wall slopes (average of 9° and range of 2°–25°) than lunar grabens (93 m high and 18° slopes). Scarp degradation on Mars has progressed through quakes, impact shaking, and dry slope processes; the lower slopes may be due to Mars’ higher gravity. Estimates of the amount of extension for individual grabens range from 20 to 350 m; most estimates of the thickness of the faulted layer range from 0.5 to 4.5 km (average is 1.5 km). This thickness range corresponds closely to the 0.8-to 3.6-km range in depth for pits, troughs, and canyons in Noctis Labyrinthus and along the walls of Valles Marineris. We propose that the predominant 1-to 1.5-km values obtained for both the thickness of the faulted layer and the depths of the pits, troughs, and theater heads of the canyons reflect the initial depth to the water table in this region, as governed by the depth to the base of ground ice. Maximum depths for these features may indicate lowered groundwater table depths and the base of ejecta material.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB093iB12p14893","issn":"01480227","usgsCitation":"Tanaka, K.L., and Davis, P.A., 1988, Tectonic history of the Syria Planum province of Mars: Journal of Geophysical Research Solid Earth, v. 93, no. B12, p. 14893-14917, https://doi.org/10.1029/JB093iB12p14893.","productDescription":"15 p.","startPage":"14893","endPage":"14917","costCenters":[],"links":[{"id":220137,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars","volume":"93","issue":"B12","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505ba464e4b08c986b3202e2","contributors":{"authors":[{"text":"Tanaka, K. L.","contributorId":31394,"corporation":false,"usgs":false,"family":"Tanaka","given":"K.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":365742,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davis, P. A.","contributorId":74021,"corporation":false,"usgs":true,"family":"Davis","given":"P.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":365743,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013841,"text":"70013841 - 1988 - Unsubstituted polynuclear aromatic hydrocarbons in sediments, clams, and clam worms from Chesapeake Bay","interactions":[],"lastModifiedDate":"2012-03-12T17:18:38","indexId":"70013841","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2676,"text":"Marine Pollution Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Unsubstituted polynuclear aromatic hydrocarbons in sediments, clams, and clam worms from Chesapeake Bay","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Pollution Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0025326X","usgsCitation":"Foster, G., and Wright, D., 1988, Unsubstituted polynuclear aromatic hydrocarbons in sediments, clams, and clam worms from Chesapeake Bay: Marine Pollution Bulletin, v. 19, no. 9, p. 459-465.","startPage":"459","endPage":"465","numberOfPages":"7","costCenters":[],"links":[{"id":219948,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbcf3e4b08c986b328e6a","contributors":{"authors":[{"text":"Foster, G.D.","contributorId":98464,"corporation":false,"usgs":true,"family":"Foster","given":"G.D.","email":"","affiliations":[],"preferred":false,"id":366986,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wright, D.A.","contributorId":15568,"corporation":false,"usgs":true,"family":"Wright","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":366985,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014461,"text":"70014461 - 1988 - The global distribution, abundance, and stability of SO2 on Io","interactions":[],"lastModifiedDate":"2012-03-12T17:19:30","indexId":"70014461","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"The global distribution, abundance, and stability of SO2 on Io","docAbstract":"Sulfur dioxide distribution and abundances, bolometric hemispheric albedos, and passive surface temperatures on Io are modeled and mapped globally from Voyager multispectral mosaics, Earth-based spectra, and photometric descriptions. Photometric models indicate global average values for regolith porosity of 75-95% and macroscopic roughness with a mean slope angle of ~30??. Abundances of SO2 suggested by observations at uv-visible wavelengths and at 4.08 ??m are partially reconciled by intimate-mixing models; 30-50% SO2 coverage of the integral disk is indicated. Three major spectral end members, with continuous mixing, are recognized from the Voyager multispectral mosaics; one of these end members is identified as SO2. Intimate-mixing models with the three spectal end members are used to produce abundance maps for the optical surface; ~30% of Io's total optical surface consists of SO2. The SO2 is concentrated in the bright equatorial band and is relatively deficient in the region of Pele-type volcanic reuptions (long 240??-360??) and the polar regions. Temperatures are computed to vary over a 40??K range, at the same illumination angle, according to variations in surface bolometric hemispheric albedo. The brightest (and locally coldest) areas correspond to areas rich in SO2 and are concentrated in an equatorial band (??30?? lat), but many small cold patches occur elsewhere. These cold patches have radiative equilibrium temperatures ???120??K at the subsolar point, resulting in SO2 saturation vapor pressures ???10-8 bar. Midlatitude areas and the region of Pele-type plume eruptions are generally warmer (due to lower albedos). These results for surface temperatures and SO2 abundances and distribution support the regional coldtrapping model for the surface and atmospheric SO2 presented by F.P. Fanale, W.B. Banerdt, L.S. Elson, T.V. Johnson, and R.W. Zurek (1982, In Satellites of Jupiter (D. Morrison, Ed.), pp. 756-781, Univ. of Arizona Press, Tucson), although the region of Pele-type volcanic eruptions may be better characterized by the regolith condtrapping/volcanic-venting model of D.L. Matson and D.B. Nash (1983, J. Geophys. Res. 88, 4771-4783). The bright equatorial band is especially effective at slowing the formation of polar caps of SO2, both by reducing the sublimation rate near the subsolar point and by coldtrapping the SO2 in the equatorial region, so that competing processes of sputtering and volcanic resurfacing may prevent the formation of polar SO2 caps.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Icarus","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/0019-1035(88)90157-1","issn":"00191035","usgsCitation":"McEwen, A.S., Johnson, T.V., Matson, D.L., and Soderblom, L., 1988, The global distribution, abundance, and stability of SO2 on Io: Icarus, v. 75, no. 3, p. 450-478, https://doi.org/10.1016/0019-1035(88)90157-1.","startPage":"450","endPage":"478","numberOfPages":"29","costCenters":[],"links":[{"id":205665,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0019-1035(88)90157-1"},{"id":225897,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"75","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bac8ae4b08c986b32357f","contributors":{"authors":[{"text":"McEwen, A. S.","contributorId":11317,"corporation":false,"usgs":true,"family":"McEwen","given":"A.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":368449,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, T. V.","contributorId":79619,"corporation":false,"usgs":false,"family":"Johnson","given":"T.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":368451,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Matson, D. L.","contributorId":59940,"corporation":false,"usgs":false,"family":"Matson","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":368450,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Soderblom, L.A. 0000-0002-0917-853X","orcid":"https://orcid.org/0000-0002-0917-853X","contributorId":6139,"corporation":false,"usgs":true,"family":"Soderblom","given":"L.A.","affiliations":[],"preferred":false,"id":368448,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":36376,"text":"b1625 - 1988 - Bedrock geology of the Vipond Park 15-minute, Stine Mountain 7 1/2-minute, and Maurice Mountain 7 1/2-minute quadrangles, Pioneer Mountains, Beaverhead County, Montana","interactions":[],"lastModifiedDate":"2023-03-22T18:12:01.090306","indexId":"b1625","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1625","title":"Bedrock geology of the Vipond Park 15-minute, Stine Mountain 7 1/2-minute, and Maurice Mountain 7 1/2-minute quadrangles, Pioneer Mountains, Beaverhead County, Montana","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/b1625","usgsCitation":"Zen, E., 1988, Bedrock geology of the Vipond Park 15-minute, Stine Mountain 7 1/2-minute, and Maurice Mountain 7 1/2-minute quadrangles, Pioneer Mountains, Beaverhead County, Montana: U.S. Geological Survey Bulletin 1625, Report: viii, 49 p.; 2 Plates: 57.64 x 29.96 inches and 53.95 x 29.44 inches, https://doi.org/10.3133/b1625.","productDescription":"Report: viii, 49 p.; 2 Plates: 57.64 x 29.96 inches and 53.95 x 29.44 inches","costCenters":[],"links":[{"id":97369,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1625/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":97368,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1625/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":166532,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1625/report-thumb.jpg"},{"id":109770,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_21817.htm","linkFileType":{"id":5,"text":"html"},"description":"21817"},{"id":64316,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1625/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Montana","county":"Beaverhead County","otherGeospatial":"Vipond Park 15-minute, Stine Mountain 7 1/2 -minute, and Maurice Mountain 7 1/2-minute quadrangles","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -113.125,\n              45.75\n            ],\n            [\n              -113.125,\n              45.5\n            ],\n            [\n              -112.75,\n              45.5\n            ],\n            [\n              -112.75,\n              45.75\n            ],\n            [\n              -113.125,\n              45.75\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a5ee4b07f02db633f09","contributors":{"authors":[{"text":"Zen, E-an","contributorId":38564,"corporation":false,"usgs":true,"family":"Zen","given":"E-an","affiliations":[],"preferred":false,"id":216224,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013301,"text":"70013301 - 1988 - K-Ar chronology of the Luohe iron district, Anhui Province, China","interactions":[],"lastModifiedDate":"2024-01-05T16:00:09.44911","indexId":"70013301","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"K-Ar chronology of the Luohe iron district, Anhui Province, China","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.83.2.433","issn":"03610128","usgsCitation":"McKee, E., 1988, K-Ar chronology of the Luohe iron district, Anhui Province, China: Economic Geology, v. 83, no. 2, p. 433-435, https://doi.org/10.2113/gsecongeo.83.2.433.","productDescription":"3 p.","startPage":"433","endPage":"435","numberOfPages":"3","costCenters":[],"links":[{"id":220248,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"83","issue":"2","noUsgsAuthors":false,"publicationDate":"1988-04-01","publicationStatus":"PW","scienceBaseUri":"505a4043e4b0c8380cd64c0e","contributors":{"authors":[{"text":"McKee, E.H.","contributorId":20736,"corporation":false,"usgs":true,"family":"McKee","given":"E.H.","email":"","affiliations":[],"preferred":false,"id":365760,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014355,"text":"70014355 - 1988 - Long-term fate of organic micropollutants in sewage-contaminated groundwater","interactions":[],"lastModifiedDate":"2020-01-17T17:06:02","indexId":"70014355","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Long-term fate of organic micropollutants in sewage-contaminated groundwater","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"ACS","doi":"10.1021/es00167a012","issn":"0013936X","usgsCitation":"Barber, L.B., Schroeder, M., Thurman, E.M., and LeBlanc, D.R., 1988, Long-term fate of organic micropollutants in sewage-contaminated groundwater: Environmental Science & Technology, v. 22, no. 2, p. 205-211, https://doi.org/10.1021/es00167a012.","productDescription":"7 p.","startPage":"205","endPage":"211","numberOfPages":"7","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":226147,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"2","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505a4966e4b0c8380cd68599","contributors":{"authors":[{"text":"Barber, Larry B. 0000-0002-0561-0831 lbbarber@usgs.gov","orcid":"https://orcid.org/0000-0002-0561-0831","contributorId":921,"corporation":false,"usgs":true,"family":"Barber","given":"Larry","email":"lbbarber@usgs.gov","middleInitial":"B.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":779724,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schroeder, M.P.","contributorId":41453,"corporation":false,"usgs":true,"family":"Schroeder","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":368206,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thurman, E. Michael","contributorId":9636,"corporation":false,"usgs":true,"family":"Thurman","given":"E.","email":"","middleInitial":"Michael","affiliations":[],"preferred":false,"id":779725,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"LeBlanc, Denis R. 0000-0002-4646-2628 dleblanc@usgs.gov","orcid":"https://orcid.org/0000-0002-4646-2628","contributorId":1696,"corporation":false,"usgs":true,"family":"LeBlanc","given":"Denis","email":"dleblanc@usgs.gov","middleInitial":"R.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":779726,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70013690,"text":"70013690 - 1988 - Knowledge-based GIS techniques applied to geological engineering","interactions":[],"lastModifiedDate":"2012-03-12T17:18:38","indexId":"70013690","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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":"Knowledge-based GIS techniques applied to geological engineering","docAbstract":"A knowledge-based geographic information system (KBGIS) approach which requires development of a rule base for both GIS processing and for the geological engineering application has been implemented. The rule bases are implemented in the Goldworks expert system development shell interfaced to the Earth Resources Data Analysis System (ERDAS) raster-based GIS for input and output. GIS analysis procedures including recoding, intersection, and union are controlled by the rule base, and the geological engineering map product is generted by the expert system. The KBGIS has been used to generate a geological engineering map of Creve Coeur, Missouri.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Photogrammetric Engineering and Remote Sensing","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00991112","usgsCitation":"Usery, E.L., Altheide, P., Deister, R.R., and Barr, D.J., 1988, Knowledge-based GIS techniques applied to geological engineering: Photogrammetric Engineering and Remote Sensing, v. 54, no. 11, p. 1623-1628.","startPage":"1623","endPage":"1628","numberOfPages":"6","costCenters":[],"links":[{"id":220328,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a40bde4b0c8380cd64fe6","contributors":{"authors":[{"text":"Usery, E. Lynn 0000-0002-2766-2173 usery@usgs.gov","orcid":"https://orcid.org/0000-0002-2766-2173","contributorId":231,"corporation":false,"usgs":true,"family":"Usery","given":"E.","email":"usery@usgs.gov","middleInitial":"Lynn","affiliations":[{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"preferred":true,"id":366646,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Altheide, Phyllis","contributorId":8991,"corporation":false,"usgs":true,"family":"Altheide","given":"Phyllis","email":"","affiliations":[],"preferred":false,"id":366647,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Deister, Robin R. P.","contributorId":38711,"corporation":false,"usgs":false,"family":"Deister","given":"Robin","email":"","middleInitial":"R. P.","affiliations":[],"preferred":false,"id":366648,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barr, David J.","contributorId":43493,"corporation":false,"usgs":true,"family":"Barr","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":366649,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
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