{"pageNumber":"5031","pageRowStart":"125750","pageSize":"25","recordCount":184617,"records":[{"id":70012943,"text":"70012943 - 1985 - Kinetic and thermodynamic factors controlling the distribution of SO32- and Na+ in calcites and selected aragonites","interactions":[],"lastModifiedDate":"2024-03-19T16:54:10.042448","indexId":"70012943","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","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}},"displayTitle":"Kinetic and thermodynamic factors controlling the distribution of SO<sub>3</sub><sup>2-</sup> and Na<sup>+</sup> in calcites and selected aragonites","title":"Kinetic and thermodynamic factors controlling the distribution of SO32- and Na+ in calcites and selected aragonites","docAbstract":"<div id=\"preview-section-abstract\"><div id=\"abstracts\" class=\"Abstracts u-font-serif text-s\"><div id=\"aep-abstract-id4\" class=\"abstract author\"><div id=\"aep-abstract-sec-id5\"><p>Significant amounts of SO<sub>4</sub><sup>2−</sup>, Na<sup>+</sup>, and OH<sup>−</sup><span>&nbsp;</span>are incorporated in marine biogenic calcites. Biogenic high Mg-calcites average about 1 mole percent SO<sub>4</sub><sup>2−</sup>. Aragonites and most biogenic low Mg-calcites contain significant amounts of Na<sup>+</sup>, but very low concentrations of SO<sub>4</sub><sup>2−</sup>. The SO<sub>4</sub><sup>2−</sup><span>&nbsp;</span>content of non-biogenic calcites and aragonites investigated was below 100 ppm. The presence of Na<sup>+</sup><span>&nbsp;</span>and SO<sub>4</sub><sup>2−</sup><span>&nbsp;</span>increases the unit cell size of calcites. The solid-solutions show a solubility minimum at about 0.5 mole percent SO<sub>4</sub><sup>2−</sup><span>&nbsp;</span>beyond which the solubility rapidly increases. The solubility product of calcites containing 3 mole percent SO<sub>4</sub><sup>2−</sup><span>&nbsp;</span>is the same as that of aragonite. Na<sup>+</sup><span>&nbsp;</span>appears to have very little effect on the solubility product of calcites. The amounts of Na<sup>+</sup><span>&nbsp;</span>and SO<sub>4</sub><sup>2−</sup><span>&nbsp;</span>incorporated in calcites vary as a function of the rate of crystal growth. The variation of the distribution coefficient (<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>D</mtext></math>\"><span class=\"MJX_Assistive_MathML\">D</span></span></span>) of SO<sub>4</sub><sup>2−</sup><span>&nbsp;</span>in calcite at 25.0°C and 0.50 molal NaCl is described by the equation<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-2-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>D = k</mtext><msub><mi></mi><mn>0</mn></msub><mtext>+ k</mtext><msub><mi></mi><mn>1</mn></msub><mtext>R</mtext></math>\"><span class=\"MJX_Assistive_MathML\">D = k<sub>0</sub>+ k<sub>1</sub>R</span></span></span><span>&nbsp;</span>where<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-3-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>k</mtext><msub><mi></mi><mn>0</mn></msub></math>\"><span class=\"MJX_Assistive_MathML\">k<sub>0</sub></span></span></span><sub><span>&nbsp;</span></sub>and<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-4-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>k</mtext><msub><mi></mi><mn>1</mn></msub></math>\"><span class=\"MJX_Assistive_MathML\">k<sub>1</sub></span></span></span><span>&nbsp;</span>are constants equal to<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-5-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>6.16 &amp;#xD7; 10</mtext><msup><mi></mi><mn>&amp;#x2212;6</mn></msup></math>\"><span class=\"MJX_Assistive_MathML\">6.16 × 10<sup>−6</sup></span></span></span><span>&nbsp;</span>and<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-6-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>3.941 &amp;#xD7; 10</mtext><msup><mi></mi><mn>&amp;#x2212;6</mn></msup></math>\"><span class=\"MJX_Assistive_MathML\">3.941 × 10<sup>−6</sup></span></span></span>, respectively, and<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-7-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>R</mtext></math>\"><span class=\"MJX_Assistive_MathML\">R</span></span></span><span>&nbsp;</span>is the rate of crystal growth of calcite in mg·min<sup>−1</sup>·g<sup>−1</sup><span>&nbsp;</span>of seed. The data on Na<sup>+</sup><span>&nbsp;</span>are consistent with the hypothesis that a significant amount of Na<sup>+</sup><span>&nbsp;</span>occupies interstitial positions in the calcite structure. The distribution of Na<sup>+</sup><span>&nbsp;</span>follows a Freundlich isotherm and not the Berthelot-Nernst distribution law. The numerical value of the Na<sup>+</sup><span>&nbsp;</span>distribution coefficient in calcite is probably dependent on the number of defects in the calcite structure. The Na<sup>+</sup><span>&nbsp;</span>contents of calcites are not very accurate indicators of environmental salinities.</p></div></div></div></div><div id=\"preview-section-introduction\"><br></div><div id=\"preview-section-snippets\"><br></div><div id=\"preview-section-references\"><br></div>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(85)90166-8","issn":"00167037","usgsCitation":"Busenberg, E., and Plummer, N., 1985, Kinetic and thermodynamic factors controlling the distribution of SO32- and Na+ in calcites and selected aragonites: Geochimica et Cosmochimica Acta, v. 49, no. 3, p. 713-725, https://doi.org/10.1016/0016-7037(85)90166-8.","productDescription":"13 p.","startPage":"713","endPage":"725","numberOfPages":"13","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":222689,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"49","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a40a4e4b0c8380cd64f13","contributors":{"authors":[{"text":"Busenberg, E.","contributorId":56796,"corporation":false,"usgs":true,"family":"Busenberg","given":"E.","affiliations":[],"preferred":false,"id":364899,"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":364900,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70012375,"text":"70012375 - 1985 - Element mobility during alteration of silicic ash to kaolinite - A study of tonstein","interactions":[],"lastModifiedDate":"2025-07-25T16:47:35.142486","indexId":"70012375","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3369,"text":"Sedimentology","active":true,"publicationSubtype":{"id":10}},"title":"Element mobility during alteration of silicic ash to kaolinite - A study of tonstein","docAbstract":"<p><span>A laterally persistent kaolinitic mudstone parting (tonstein) occurring in a Wyoming coal bed of Eocene age was sampled to estimate the compositional contrast with a probable silicic ash precursor, and to determine the compositional influence of leached ash on immediately adjacent coal. With the exception of Al, and possibly Ti, the tonstein is highly to moderately leached of major elements, relative to a range of compositions estimated for silicic ash of the region. In agreement with the behaviour of geochemically similar major elements, alkali trace elements (Rb, Cs) are highly leached, transition-series metals moderately leached, and Ga is residual. Additional immobile trace elements are Zr and Hf but some other trace elements that are considered relatively immobile during low-temperature alteration (Th, Ta, Nb, REE, Y) were apparently leached by the low-Eh, low-pH, organic-rich pore fluids of the coal-forming swamp.</span></p><p><span>The migrational range of many of the leached elements is highly limited by the intimate association of tonstein with enclosing organic matter. Mixtures of coal + minor tonstein that occur within 20 mm of contacts are consistently enriched in some elements relative to either tonstein or nearby coal (U, Cu), or relative to calculated mixtures of tonstein and coal in their measured proportions (Th, Y, REE, Pb, Ba, V, Ti). Direct observations by fission-track radiography and electron microprobe indicate a preference of U and Fe for the organic component of mixtures. Metal fixation is probably by adsorption on insoluble organic matter (humic acids), or by precipitation as minor sulphides in these low-sulphur coals.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-3091.1985.tb00471.x","issn":"00370746","usgsCitation":"Zielinski, R.A., 1985, Element mobility during alteration of silicic ash to kaolinite - A study of tonstein: Sedimentology, v. 32, no. 4, p. 567-579, https://doi.org/10.1111/j.1365-3091.1985.tb00471.x.","productDescription":"13 p.","startPage":"567","endPage":"579","costCenters":[],"links":[{"id":222253,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wyoming","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-110.048476,40.997555],[-110.121639,40.997101],[-110.125709,40.99655],[-110.237848,40.995427],[-110.250709,40.996089],[-110.375714,40.994947],[-110.500718,40.994746],[-110.539819,40.996346],[-110.715026,40.996347],[-110.750727,40.996847],[-111.046723,40.997959],[-111.046551,41.251716],[-111.0466,41.360692],[-111.046264,41.377731],[-111.045789,41.565571],[-111.045818,41.579845],[-111.046689,42.001567],[-111.047109,42.142497],[-111.047107,42.148971],[-111.047058,42.182672],[-111.047097,42.194773],[-111.047074,42.280787],[-111.04708,42.34942],[-111.046801,42.504946],[-111.046719,42.513118],[-111.046017,42.582723],[-111.043564,42.722624],[-111.044135,42.874924],[-111.043959,42.96445],[-111.043957,42.969482],[-111.043924,42.975063],[-111.044129,43.018702],[-111.044156,43.020052],[-111.044206,43.022614],[-111.044034,43.024581],[-111.044034,43.024844],[-111.044033,43.026411],[-111.044094,43.02927],[-111.043997,43.041415],[-111.044058,43.04464],[-111.044063,43.046302],[-111.044086,43.054819],[-111.044117,43.060309],[-111.04415,43.066172],[-111.044162,43.068222],[-111.044143,43.072364],[-111.044235,43.177121],[-111.044266,43.177236],[-111.044232,43.18444],[-111.044168,43.189244],[-111.044229,43.195579],[-111.044617,43.31572],[-111.045205,43.501136],[-111.045706,43.659112],[-111.04588,43.681033],[-111.046118,43.684902],[-111.046051,43.685812],[-111.04611,43.687848],[-111.046421,43.722059],[-111.046435,43.726545],[-111.04634,43.726957],[-111.046715,43.815832],[-111.046515,43.908376],[-111.046917,43.974978],[-111.047064,43.983467],[-111.047349,43.999921],[-111.049077,44.020072],[-111.048751,44.060403],[-111.048751,44.060838],[-111.048633,44.062903],[-111.048452,44.114831],[-111.049119,44.124923],[-111.049695,44.353626],[-111.049148,44.374925],[-111.049216,44.435811],[-111.049194,44.438058],[-111.048974,44.474072],[-111.055208,44.624927],[-111.055333,44.666263],[-111.055511,44.725343],[-111.056416,44.749928],[-111.056888,44.866658],[-111.055629,44.933578],[-111.056207,44.935901],[-111.055199,45.001321],[-111.044275,45.001345],[-110.785008,45.002952],[-110.761554,44.999934],[-110.750767,44.997948],[-110.705272,44.992324],[-110.552433,44.992237],[-110.547165,44.992459],[-110.48807,44.992361],[-110.402927,44.99381],[-110.362698,45.000593],[-110.342131,44.999053],[-110.324441,44.999156],[-110.28677,44.99685],[-110.199503,44.996188],[-110.110103,45.003905],[-110.026347,45.003665],[-110.025544,45.003602],[-109.99505,45.003174],[-109.875735,45.003275],[-109.798687,45.002188],[-109.75073,45.001605],[-109.663673,45.002536],[-109.574321,45.002631],[-109.386432,45.004887],[-109.375713,45.00461],[-109.269294,45.005283],[-109.263431,45.005345],[-109.103445,45.005904],[-109.08301,44.99961],[-109.062262,44.999623],[-108.621313,45.000408],[-108.578484,45.000484],[-108.565921,45.000578],[-108.500679,44.999691],[-108.271201,45.000251],[-108.249345,44.999458],[-108.238139,45.000206],[-108.218479,45.000541],[-108.14939,45.001062],[-108.000663,45.001223],[-107.997353,45.001565],[-107.911743,45.001292],[-107.750654,45.000778],[-107.608854,45.00086],[-107.607824,45.000929],[-107.49205,45.00148],[-107.351441,45.001407],[-107.13418,45.000109],[-107.125633,44.999388],[-107.105685,44.998734],[-107.084939,44.996599],[-107.074996,44.997004],[-107.050801,44.996424],[-106.892875,44.995947],[-106.888773,44.995885],[-106.263586,44.993788],[-106.024814,44.993688],[-105.928184,44.993647],[-105.914258,44.999986],[-105.913382,45.000941],[-105.848065,45.000396],[-105.076607,45.000347],[-105.038405,45.000345],[-105.025266,45.00029],[-105.019284,45.000329],[-105.01824,45.000437],[-104.765063,44.999183],[-104.759855,44.999066],[-104.72637,44.999518],[-104.665171,44.998618],[-104.663882,44.998869],[-104.470422,44.998453],[-104.470117,44.998453],[-104.250145,44.99822],[-104.057698,44.997431],[-104.055914,44.874986],[-104.056496,44.867034],[-104.055963,44.768236],[-104.055963,44.767962],[-104.055934,44.72372],[-104.05587,44.723422],[-104.055777,44.700466],[-104.055938,44.693881],[-104.05581,44.691343],[-104.055877,44.571016],[-104.055892,44.543341],[-104.055927,44.51773],[-104.055389,44.249983],[-104.054487,44.180381],[-104.054562,44.141081],[-104.05495,43.93809],[-104.055077,43.936535],[-104.055488,43.853477],[-104.055488,43.853476],[-104.055138,43.750421],[-104.055133,43.747105],[-104.054902,43.583852],[-104.054885,43.583512],[-104.05484,43.579368],[-104.055032,43.558603],[-104.054787,43.503328],[-104.054786,43.503072],[-104.054779,43.477815],[-104.054766,43.428914],[-104.054614,43.390949],[-104.054403,43.325914],[-104.054218,43.30437],[-104.053884,43.297047],[-104.053876,43.289801],[-104.053127,43.000585],[-104.052863,42.754569],[-104.052809,42.749966],[-104.052583,42.650062],[-104.052741,42.633982],[-104.052586,42.630917],[-104.052773,42.611766],[-104.052775,42.61159],[-104.052775,42.610813],[-104.053107,42.499964],[-104.052776,42.25822],[-104.052793,42.249962],[-104.053125,42.249962],[-104.052761,42.170278],[-104.052547,42.166801],[-104.053001,42.137254],[-104.052738,42.133769],[-104.0526,42.124963],[-104.052954,42.089077],[-104.052967,42.075004],[-104.05288,42.021761],[-104.052729,42.016318],[-104.052704,42.001718],[-104.052699,41.998673],[-104.052761,41.994967],[-104.05283,41.9946],[-104.052856,41.975958],[-104.052734,41.973007],[-104.052991,41.914973],[-104.052931,41.906143],[-104.053026,41.885464],[-104.052774,41.733401],[-104.05283,41.697954],[-104.052913,41.64519],[-104.052945,41.638167],[-104.052975,41.622931],[-104.052735,41.613676],[-104.052859,41.592254],[-104.05254,41.564274],[-104.052531,41.552723],[-104.052584,41.55265],[-104.052692,41.541154],[-104.052686,41.539111],[-104.052476,41.522343],[-104.052478,41.515754],[-104.05234,41.417865],[-104.05216,41.407662],[-104.052287,41.393307],[-104.052288,41.393214],[-104.052687,41.330569],[-104.052324,41.321144],[-104.052476,41.320961],[-104.052568,41.316202],[-104.052453,41.278202],[-104.052574,41.278019],[-104.052666,41.275251],[-104.053514,41.157257],[-104.053142,41.114457],[-104.053083,41.104985],[-104.053025,41.090274],[-104.053177,41.089725],[-104.053097,41.018045],[-104.053158,41.016809],[-104.053249,41.001406],[-104.066961,41.001504],[-104.086068,41.001563],[-104.10459,41.001543],[-104.123586,41.001626],[-104.211473,41.001591],[-104.214191,41.001568],[-104.214692,41.001657],[-104.467672,41.001473],[-104.497058,41.001805],[-104.497149,41.001828],[-104.675999,41.000957],[-104.829504,40.99927],[-104.855273,40.998048],[-104.943371,40.998084],[-105.254779,40.99821],[-105.256527,40.998191],[-105.27686,40.998173],[-105.277138,40.998173],[-105.724804,40.99691],[-105.730421,40.996886],[-106.061181,40.996999],[-106.190554,40.997607],[-106.217573,40.997734],[-106.321165,40.999123],[-106.386356,41.001144],[-106.391852,41.001176],[-106.43095,41.001752],[-106.437419,41.001795],[-106.439563,41.001978],[-106.453859,41.002057],[-106.857773,41.002663],[-107.000606,41.003444],[-107.241194,41.002804],[-107.317794,41.002967],[-107.367443,41.003073],[-107.625624,41.002124],[-107.918421,41.002036],[-108.046539,41.002064],[-108.181227,41.000455],[-108.250649,41.000114],[-108.500659,41.000112],[-108.526667,40.999608],[-108.631108,41.000156],[-108.884138,41.000094],[-109.050076,41.000659],[-109.173682,41.000859],[-109.231985,41.002059],[-109.250735,41.001009],[-109.500694,40.999127],[-109.534926,40.998143],[-109.676421,40.998395],[-109.713877,40.998266],[-109.715409,40.998191],[-109.854302,40.997661],[-109.855299,40.997614],[-109.97553,40.997912],[-109.999838,40.99733],[-110.000708,40.997352],[-110.006495,40.997815],[-110.048476,40.997555]]]},\"properties\":{\"name\":\"Wyoming\",\"nation\":\"USA  \"}}]}","volume":"32","issue":"4","noUsgsAuthors":false,"publicationDate":"2006-06-14","publicationStatus":"PW","scienceBaseUri":"505a08b7e4b0c8380cd51c36","contributors":{"authors":[{"text":"Zielinski, R. A. 0000-0002-4047-5129","orcid":"https://orcid.org/0000-0002-4047-5129","contributorId":106930,"corporation":false,"usgs":true,"family":"Zielinski","given":"R.","email":"","middleInitial":"A.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":363405,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70012699,"text":"70012699 - 1985 - Osmosis: A cause of apparent deviations from Darcy's law","interactions":[],"lastModifiedDate":"2023-08-31T16:32:16.030827","indexId":"70012699","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1166,"text":"Canadian Geotechnical Journal","active":true,"publicationSubtype":{"id":10}},"title":"Osmosis: A cause of apparent deviations from Darcy's law","docAbstract":"<p><span>Recent evidence for deviations from Darcy's law at very low gradients provides a reminder that the origin of similar deviations reported during the last three decades has not been fully clarified. In most of these studies, the potential significance of osmosis was not considered. This review of the existing evidence shows that osmosis causes intercepts in flow rate versus hydraulic gradient relationships that are consistent with the observed deviations from Darcy's law at very low gradients. Moreover, it is suggested that a natural cause of osmosis in laboratory samples could be chemical reactions such as those involved in aging effects. This hypothesis is analogous to the previously proposed occurrence of electroosmosis in nature generated by geochemical weathering reactions.&nbsp;</span></p>","language":"English","publisher":"Canadian Science Publishing","doi":"10.1139/t85-032","usgsCitation":"Olsen, H.W., 1985, Osmosis: A cause of apparent deviations from Darcy's law: Canadian Geotechnical Journal, v. 22, no. 2, p. 238-241, https://doi.org/10.1139/t85-032.","productDescription":"4 p.","startPage":"238","endPage":"241","numberOfPages":"4","costCenters":[],"links":[{"id":222738,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6a1ce4b0c8380cd73fda","contributors":{"authors":[{"text":"Olsen, Harold W.","contributorId":28985,"corporation":false,"usgs":true,"family":"Olsen","given":"Harold","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":364250,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70012806,"text":"70012806 - 1985 - GEOLOGIC ASPECTS OF TIGHT GAS RESERVOIRS IN THE ROCKY MOUNTAIN REGION.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:06","indexId":"70012806","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2129,"text":"JPT, Journal of Petroleum Technology","active":true,"publicationSubtype":{"id":10}},"title":"GEOLOGIC ASPECTS OF TIGHT GAS RESERVOIRS IN THE ROCKY MOUNTAIN REGION.","docAbstract":"The authors describe some geologic characteristics of tight gas reservoirs in the Rocky Mountain region. These reservoirs usually have an in-situ permeability to gas of 0. 1 md or less and can be classified into four general geologic and engineering categories: (1) marginal marine blanket, (2) lenticular, (3) chalk, and (4) marine blanket shallow. Microscopic study of pore/permeability relationships indicates the existence of two varieties of tight reservoirs. One variety is tight because of the fine grain size of the rock. The second variety is tight because the rock is relatively tightly cemented and the pores are poorly connected by small pore throats and capillaries.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"JPT, Journal of Petroleum Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"01492136","usgsCitation":"Spencer, C., 1985, GEOLOGIC ASPECTS OF TIGHT GAS RESERVOIRS IN THE ROCKY MOUNTAIN REGION.: JPT, Journal of Petroleum Technology, v. 37, no. 8, p. 1308-1314.","startPage":"1308","endPage":"1314","numberOfPages":"7","costCenters":[],"links":[{"id":222615,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a144ee4b0c8380cd549bf","contributors":{"authors":[{"text":"Spencer, Charles W.","contributorId":13234,"corporation":false,"usgs":true,"family":"Spencer","given":"Charles W.","affiliations":[],"preferred":false,"id":364580,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70012310,"text":"70012310 - 1985 - Solid state recording current meter conversion","interactions":[],"lastModifiedDate":"2016-07-27T10:48:44","indexId":"70012310","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Solid state recording current meter conversion","docAbstract":"<p>The authors describe the conversion of an Endeco-174 current meter to a solid-state recording current meter. A removable solid-state module was designed to fit in the space originally occupied by an 8-track tape cartridge. The module contains a CPU and 128 kilobytes of nonvolatile CMOS memory. The solid-state module communicates with any terminal or computer using an RS-232C interface at 4800 baud rate. A primary consideration for conversion was to keep modifications of the current meter to a minimum. The communication protocol was designed to emulate the Endeco tape translation unit, thus the need for a translation unit was eliminated and the original data reduction programs can be used without any modification. After conversion, the data recording section of the current meter contains no moving parts; the storage capacity of the module is equivalent to that of the original tape cartridge.</p>","largerWorkTitle":"Oceans Conference Record (IEEE)","conferenceTitle":"Ocean Engineering and the Environment - Conference Record.","conferenceLocation":"San Diego, CA, USA","language":"English","publisher":"IEEE","publisherLocation":"New York, NY, USA","issn":"01977385","usgsCitation":"Cheng, R.T., and Wang, L., 1985, Solid state recording current meter conversion, <i>in</i> Oceans Conference Record (IEEE), San Diego, CA, USA, p. 752-754.","startPage":"752","endPage":"754","numberOfPages":"3","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":221884,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aaf6ae4b0c8380cd87592","contributors":{"authors":[{"text":"Cheng, Ralph T.","contributorId":69134,"corporation":false,"usgs":true,"family":"Cheng","given":"Ralph","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":363239,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wang, Lichen","contributorId":79622,"corporation":false,"usgs":true,"family":"Wang","given":"Lichen","email":"","affiliations":[],"preferred":false,"id":363240,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70012811,"text":"70012811 - 1985 - The Schwartzwalder uranium deposit. I: Geology and structural controls on mineralization.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:06","indexId":"70012811","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","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":"The Schwartzwalder uranium deposit. I: Geology and structural controls on mineralization.","docAbstract":"Numerous uranium veins occupy fractures and faults in brittle Proterozoic gneisses along the east central Front Range of Colorado. The deposit size correlates with the density and localization of brittle fracture. The largest deposit, the Schwartzwalder, is explained by a singular configuration of complexly broken, deep-reaching brittle gneisses between impervious schists. The gneisses are described as being derived from volcanic rocks, shales, and chemical sediments, including iron, quartz and sulphide formations.-G.J.N.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Economic Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"03610128","usgsCitation":"Wallace, A.R., and Karlson, R.C., 1985, The Schwartzwalder uranium deposit. I: Geology and structural controls on mineralization.: Economic Geology, v. 80, no. 7, p. 1842-1857.","startPage":"1842","endPage":"1857","numberOfPages":"16","costCenters":[],"links":[{"id":222620,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"80","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba8dce4b08c986b321ed6","contributors":{"authors":[{"text":"Wallace, A. R.","contributorId":59445,"corporation":false,"usgs":true,"family":"Wallace","given":"A.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":364590,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Karlson, R. C.","contributorId":19524,"corporation":false,"usgs":true,"family":"Karlson","given":"R.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":364589,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013027,"text":"70013027 - 1985 - Point- and nonpoint-source trace elements in a wild and scenic river of northern New Mexico.","interactions":[],"lastModifiedDate":"2013-03-15T20:54:35","indexId":"70013027","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2456,"text":"Journal of Soil and Water Conservation","active":true,"publicationSubtype":{"id":10}},"title":"Point- and nonpoint-source trace elements in a wild and scenic river of northern New Mexico.","docAbstract":"Variations in water quality of the upper Rio Grande and Red River are presented. A downstream increase in concentrations of various constituents, at times approaching or exceeding water quality standards, occurred due to leaching of natural ore bodies and permitted discharges from molybdenum mill tailings ponds. Nonpoint sources are a major cause of elevated trace element concentrations.-from Author","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Soil and Water Conservation","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Soil and Water Conservation Society","usgsCitation":"Garn, H., 1985, Point- and nonpoint-source trace elements in a wild and scenic river of northern New Mexico.: Journal of Soil and Water Conservation, v. 40, no. 5, p. 458-462.","startPage":"458","endPage":"462","numberOfPages":"5","costCenters":[],"links":[{"id":219890,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":269421,"type":{"id":11,"text":"Document"},"url":"https://www.jswconline.org/content/40/5/458.abstract"}],"volume":"40","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7cb6e4b0c8380cd79b34","contributors":{"authors":[{"text":"Garn, H.S.","contributorId":42601,"corporation":false,"usgs":true,"family":"Garn","given":"H.S.","affiliations":[],"preferred":false,"id":365110,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70009913,"text":"70009913 - 1985 - Mechanistic roles of soil humus and minerals in the sorption of nonionic organic compounds from aqueous and organic solutions","interactions":[],"lastModifiedDate":"2020-01-19T10:47:58","indexId":"70009913","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Mechanistic roles of soil humus and minerals in the sorption of nonionic organic compounds from aqueous and organic solutions","docAbstract":"<p>Mechanistic roles of soil humus and soil minerals and their contributions to soil sorption of nonionic organic compounds from aqueous and organic solutions are illustrated. Parathion and lindane are used as model solutes on two soils that differ greatly in their humic and mineral contents. In aqueous systems, observed sorptive characteristics suggest that solute partitioning into the soil-humic phase is the primary mechanism of soil uptake. By contrast, data obtained from organic solutions on dehydrated soil partitioning into humic phase and adsorption by soil minerals is influenced by the soil-moisture content and by the solvent medium from which the solute is sorbed.&nbsp;</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0146-6380(85)90045-2","issn":"01466380","usgsCitation":"Chiou, C.T., Shoup, T., and Porter, P., 1985, Mechanistic roles of soil humus and minerals in the sorption of nonionic organic compounds from aqueous and organic solutions: Organic Geochemistry, v. 8, no. 1, p. 9-14, https://doi.org/10.1016/0146-6380(85)90045-2.","productDescription":"6 p.","startPage":"9","endPage":"14","numberOfPages":"6","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":218613,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5374e4b0c8380cd6cac7","contributors":{"authors":[{"text":"Chiou, C. T.","contributorId":97080,"corporation":false,"usgs":true,"family":"Chiou","given":"C.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":357440,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shoup, T.D.","contributorId":12614,"corporation":false,"usgs":true,"family":"Shoup","given":"T.D.","email":"","affiliations":[],"preferred":false,"id":357438,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Porter, P.E.","contributorId":31109,"corporation":false,"usgs":true,"family":"Porter","given":"P.E.","email":"","affiliations":[],"preferred":false,"id":357439,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013230,"text":"70013230 - 1985 - INTERRELATIONSHIPS BETWEEN IN-SITU GAS HYDRATES AND HEAVY OIL OCCURRENCES ON THE NORTH SLOPE OF ALASKA.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:37","indexId":"70013230","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"INTERRELATIONSHIPS BETWEEN IN-SITU GAS HYDRATES AND HEAVY OIL OCCURRENCES ON THE NORTH SLOPE OF ALASKA.","docAbstract":"In 1973, during the drilling of the West Sak #1 well on the North Slope of Alaska, oil was first recovered from a shallow Cretaceous sand interval which was later informally named the West Sak sands by ARCO Alaska. Stratigraphically above the West Sak sands there are two additional oil bearing sands, and are informally referred to by ARCO as the Ugnu and the 2150 horizons. Gas hydrates are interpreted to exist in the West Sak #6 well in conjunction with heavy oil and the physical properties of this oil may have been influenced by the gas hydrate. Prior to this work, only experimental evidence suggested that hydrates and oil could exist in the same reservoir.","largerWorkTitle":"Society of Petroleum Engineers of AIME, (Paper) SPE","conferenceTitle":"Proceedings, 55th Annual California Regional Meeting - Society of Petroleum Engineers of AIME.","conferenceLocation":"Bakersfield, CA, USA","language":"English","publisher":"Soc of Petroleum Engineers of AIME","publisherLocation":"USA SPE 13594, Richardson, TX, USA","usgsCitation":"Collett, T.S., 1985, INTERRELATIONSHIPS BETWEEN IN-SITU GAS HYDRATES AND HEAVY OIL OCCURRENCES ON THE NORTH SLOPE OF ALASKA., <i>in</i> Society of Petroleum Engineers of AIME, (Paper) SPE, Bakersfield, CA, USA, p. 45-50.","startPage":"45","endPage":"50","numberOfPages":"6","costCenters":[],"links":[{"id":220187,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a37d2e4b0c8380cd611c9","contributors":{"authors":[{"text":"Collett, T. S. 0000-0002-7598-4708","orcid":"https://orcid.org/0000-0002-7598-4708","contributorId":86342,"corporation":false,"usgs":true,"family":"Collett","given":"T.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":365587,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70012825,"text":"70012825 - 1985 - Statistical evaluation of an inductively coupled plasma atomic emission spectrometric method for routine water quality testing","interactions":[],"lastModifiedDate":"2020-01-19T11:01:35","indexId":"70012825","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":847,"text":"Applied Spectroscopy","active":true,"publicationSubtype":{"id":10}},"title":"Statistical evaluation of an inductively coupled plasma atomic emission spectrometric method for routine water quality testing","docAbstract":"In an interlaboratory test, inductively coupled plasma atomic emission spectrometry (ICP-AES) was compared with flame atomic absorption spectrometry and molecular absorption spectrophotometry for the determination of 17 major and trace elements in 100 filtered natural water samples. No unacceptable biases were detected. The analysis precision of ICP-AES was found to be equal to or better than alternative methods. Known-addition recovery experiments demonstrated that the ICP-AES determinations are accurate to between plus or minus 2 and plus or minus 10 percent; four-fifths of the tests yielded average recoveries of 95-105 percent, with an average relative standard deviation of about 5 percent.","language":"English","publisher":"Sage","doi":"10.1366/0003702854248458","issn":"00037028","usgsCitation":"Garbarino, J., Jones, B.E., and Stein, G., 1985, Statistical evaluation of an inductively coupled plasma atomic emission spectrometric method for routine water quality testing: Applied Spectroscopy, v. 39, no. 3, p. 535-541, https://doi.org/10.1366/0003702854248458.","productDescription":"7 p.","startPage":"535","endPage":"541","numberOfPages":"7","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":221913,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"39","issue":"3","noUsgsAuthors":false,"publicationDate":"1985-05-01","publicationStatus":"PW","scienceBaseUri":"505b9729e4b08c986b31b902","contributors":{"authors":[{"text":"Garbarino, J.R.","contributorId":76326,"corporation":false,"usgs":true,"family":"Garbarino","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":364615,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, B. E.","contributorId":70787,"corporation":false,"usgs":true,"family":"Jones","given":"B.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":364614,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stein, G.P.","contributorId":30363,"corporation":false,"usgs":true,"family":"Stein","given":"G.P.","email":"","affiliations":[],"preferred":false,"id":364613,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013035,"text":"70013035 - 1985 - Water analysis","interactions":[],"lastModifiedDate":"2023-03-10T16:49:13.576823","indexId":"70013035","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":761,"text":"Analytical Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Water analysis","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"ACS Publications","doi":"10.1021/ac00282a004","usgsCitation":"Garbarino, J.R., Steinheimer, T., and Taylor, H.E., 1985, Water analysis: Analytical Chemistry, v. 57, no. 5, p. 46-88, https://doi.org/10.1021/ac00282a004.","productDescription":"43 p.","startPage":"46","endPage":"88","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true}],"links":[{"id":220008,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"5","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505bc797e4b08c986b32c518","contributors":{"authors":[{"text":"Garbarino, John R. jrgarb@usgs.gov","contributorId":2189,"corporation":false,"usgs":true,"family":"Garbarino","given":"John","email":"jrgarb@usgs.gov","middleInitial":"R.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true}],"preferred":true,"id":365133,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Steinheimer, T.R.","contributorId":106166,"corporation":false,"usgs":true,"family":"Steinheimer","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":365134,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Taylor, Howard E. hetaylor@usgs.gov","contributorId":1551,"corporation":false,"usgs":true,"family":"Taylor","given":"Howard","email":"hetaylor@usgs.gov","middleInitial":"E.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":365132,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013045,"text":"70013045 - 1985 - Seasonal variation in sediment transport on the Russian River shelf, California","interactions":[],"lastModifiedDate":"2023-12-04T15:06:31.77465","indexId":"70013045","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1333,"text":"Continental Shelf Research","active":true,"publicationSubtype":{"id":10}},"title":"Seasonal variation in sediment transport on the Russian River shelf, California","docAbstract":"<p><span>Near-bottom currents, light transmission and scattering, and bottom pressure were measured with GEOPROBE tripods and vector-averaging current meters during June 1979 to April 1980 on the central shelf 10 km west of the Russian River, California. The instruments were located on the mid-shelf mud belt composed of bimodal sandy clayey silts contributed principally by the Russian River. During the summer season of persistent northwesterly, upwelling-favorable winds, the average and maximum current speeds 5 m above the bottom were 11 and 31 cm s</span><sup>−1</sup><span>, respectively. The mean (subtidal) flow at 5 m above bottom was poleward and slightly offshore at about 6 cm s</span><sup>−1</sup><span>. The strongest wave-generated bottom currents were about 10 cm s</span><sup>−1</sup><span>, but oscillatory velocities &gt; 5 cm s</span><sup>−1</sup><span>&nbsp;were infrequent. Suspended-matter concentrations, derived from the optical data at 1.9 m above the bottom, ranged from 1 to 6 mg l</span><sup>−1</sup><span>. The optical data show that the currents and waves were generally below threshold levels for sediment erosion through the summer. In contrast, during the autumn and, particularly, the winter months, the average and maximum concentrations of suspended matter increased substantially. The increases were primarily caused by larger waves from distant storms and short intervals of strong currents associated with local storms and, secondarily, by the large seasonal flow of the Russian River. Wind-driven and wave-generated bottom currents were as large as 37 and 45 cm s</span><sup>−1</sup><span>, respectively, during local storms in December 1979 and February 1980. Suspended-matter concentrations averaged about 7 mg l</span><sup>−1</sup><span>&nbsp;during non-storm winter periods, but increased to nearly 150 mg l</span><sup>−1</sup><span>&nbsp;during a December storm. Estimates of suspended-matter flux near the bottom show that the local winter storms, which had a combined duration of about 12 days, could account for 30 to 50% of the total annual suspended-sediment transport at the mid-shelf site. Although intervals of large swell were at times superimposed on southward advective currents, the major sediment-transport events were caused by strong southerly winds that produced poleward bottom currents with a significant offshore component. The primary aspects of the distribution of modern sediments on this shelf are in good agreement with the observed poleward transport.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0278-4343(85)90007-X","usgsCitation":"Drake, D., and Cacchione, D., 1985, Seasonal variation in sediment transport on the Russian River shelf, California: Continental Shelf Research, v. 4, no. 5, p. 495-514, https://doi.org/10.1016/0278-4343(85)90007-X.","productDescription":"20 p.","startPage":"495","endPage":"514","numberOfPages":"20","costCenters":[],"links":[{"id":220120,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Russian River shelf","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -123.51559980216115,\n              38.6469199916873\n            ],\n            [\n              -123.51559980216115,\n              38.21661585272099\n            ],\n            [\n              -122.84406049552042,\n              38.21661585272099\n            ],\n            [\n              -122.84406049552042,\n              38.6469199916873\n            ],\n            [\n              -123.51559980216115,\n              38.6469199916873\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"4","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b88ece4b08c986b316c39","contributors":{"authors":[{"text":"Drake, D.E.","contributorId":48150,"corporation":false,"usgs":true,"family":"Drake","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":365158,"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":365159,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70012264,"text":"70012264 - 1985 - NEW STUDIES OF URBAN FLOOD FREQUENCY IN THE SOUTHEASTERN UNITED STATES.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:04","indexId":"70012264","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"NEW STUDIES OF URBAN FLOOD FREQUENCY IN THE SOUTHEASTERN UNITED STATES.","docAbstract":"Five reports dealing with flood magnitude and frequency in urban areas in the Southeastern United States have been published during the past 2 years by the U. S. Geological Survey. These reports are based on data collected in Tampa and Tallahassee, Florida, Atlanta, Georgia, and several cities in Alabama and Tennessee. Each report contains regression equations useful for estimating flood peaks for selected recurrence intervals at ungaged urban sites in their respective study area. A nationwide study of urban flood characteristics by the Geological Survey published in 1983 contains equations for estimating urban peak discharges for ungaged sites throughout the United States.","largerWorkTitle":"University of Kentucky, Office of Engineering Services, (Bulletin) UKY BU","conferenceTitle":"Proceedings - 1985 International Symposium on Urban Hydrology, Hydraulic Infrastructures and Water Quality Control.","conferenceLocation":"Lexington, KY, USA","language":"English","publisher":"Univ of Kentucky","publisherLocation":"Office of Engineering Services (OES P-845224), Lexington, KY, USA","issn":"02706504","isbn":"0897790634","usgsCitation":"Sauer, V.B., 1985, NEW STUDIES OF URBAN FLOOD FREQUENCY IN THE SOUTHEASTERN UNITED STATES., <i>in</i> University of Kentucky, Office of Engineering Services, (Bulletin) UKY BU, Lexington, KY, USA, p. 195-201.","startPage":"195","endPage":"201","numberOfPages":"7","costCenters":[],"links":[{"id":222128,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6145e4b0c8380cd718ad","contributors":{"editors":[{"text":"Huffsey Ralph R.De Vore R.William","contributorId":128373,"corporation":true,"usgs":false,"organization":"Huffsey Ralph R.De Vore R.William","id":536246,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Sauer, Vernon B.","contributorId":92645,"corporation":false,"usgs":true,"family":"Sauer","given":"Vernon","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":363126,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013099,"text":"70013099 - 1985 - An ocean bottom seismometer study of shallow seismicity near the Mid- America Trench offshore Guatemala","interactions":[],"lastModifiedDate":"2024-06-25T14:53:05.449242","indexId":"70013099","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","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":"An ocean bottom seismometer study of shallow seismicity near the Mid- America Trench offshore Guatemala","docAbstract":"<p><span>Five ocean bottom seismometers recorded seismicity near the Mid-America Trench offshore Guatemala for 27 days in 1979. The array was emplaced in the lower slope region, just above the topographic trench, in the area investigated during Deep Sea Drilling Project legs 67 and 84. Approximately 170 events were recorded by three or more seismometers, and almost half were located with statistical hypocentral errors of less than 10 km. Most epicenters were located immediately landward of the trench axis, and many were further confined to a zone northwest of the array. In terms of depth, most events were located within the subducting Cocos plate rather than in the overlying plate or at the plate-plate boundary. Their apparent concentration in the lower crust and upper mantle may suggest that the upper crust does not have the strength to support earthquake-generating stresses. The data permit construction of a magnitude-duration scale, calibrated with&nbsp;</span><i>m<sub>b</sub></i><span>&nbsp;magnitudes for events located by the World-Wide Standard Seismograph Network (WWSSN) and recorded by our array and by the network recording foreshocks and aftershocks of the 1979 Petatlan earthquake. Most magnitudes ranged between 3.0 and 4.0&nbsp;</span><i>m<sub>b</sub></i><span>, and the threshold magnitude of locatable events was about 2.8&nbsp;</span><i>m<sub>b</sub></i><span>. Two distinct composite focal mechanisms were determined. One appears to indicate high-angle reverse faulting in the subducting plate, in a plane parallel to trench axis strike. The other, constructed for some earthquakes in the zone northwest of the array, seems to show normal faulting along possible fault planes oriented quasi-perpendicular to the trench axis. The normal faulting is consistent with the segmentation of the Cocos plate that has been proposed from land evidence. Such segmentation might be evidenced offshore by normal faulting along planes subperpendicular to trench strike. Alternatively, the seismicity zone and associated normal faulting mechanism may be the subsurface expression of the tectonics responsible for the San Jose Canyon, a prominent submarine canyon located farther upslope. Finally, projection of our seismicity sample and of well-located WWSSN events from 1954 to 1980 onto a plane perpendicular to the trench axis shows a distinct gap between the shallow seismicity located by our array, and the deeper Wadati-Benioff zone seismicity located by the WWSSN. We tentatively ascribe this gap to inadequate sampling, but we suggest that it requires further investigation.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB090iB13p11397","issn":"01480227","usgsCitation":"Ambos, E.L., Hussong, D., and Holman, C., 1985, An ocean bottom seismometer study of shallow seismicity near the Mid- America Trench offshore Guatemala: Journal of Geophysical Research Solid Earth, v. 90, no. B13, p. 11397-11412, https://doi.org/10.1029/JB090iB13p11397.","productDescription":"16 p.","startPage":"11397","endPage":"11412","costCenters":[],"links":[{"id":219835,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"90","issue":"B13","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5059ea98e4b0c8380cd4897e","contributors":{"authors":[{"text":"Ambos, E. L.","contributorId":23957,"corporation":false,"usgs":true,"family":"Ambos","given":"E.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":365285,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hussong, D.M.","contributorId":99696,"corporation":false,"usgs":true,"family":"Hussong","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":365286,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Holman, C.E.","contributorId":20892,"corporation":false,"usgs":true,"family":"Holman","given":"C.E.","email":"","affiliations":[],"preferred":false,"id":365284,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013084,"text":"70013084 - 1985 - Origin of discontinuities in coal-bearing strata at roaring creek (basal Pennsylvanian of Indiana)","interactions":[],"lastModifiedDate":"2024-02-24T01:16:41.188792","indexId":"70013084","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","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":"Origin of discontinuities in coal-bearing strata at roaring creek (basal Pennsylvanian of Indiana)","docAbstract":"<div id=\"preview-section-abstract\"><div id=\"abstracts\" class=\"Abstracts u-font-serif text-s\"><div id=\"aep-abstract-id5\" class=\"abstract author\"><div id=\"aep-abstract-sec-id6\"><p>Basal Pennsylvanian coal-bearing strata exposed along Roaring Creek, west-central Indiana, exhibit extreme lateral discontinuity. Coal seams abruptly change in thickness and elevation; they split, grade into shale, are cut out by channels and disrupted by soft-sediment deformational structures. Initial sediments were laid down by a network of southwest-flowing streams that traversed a deeply channelized upland surface of Mississippian carbonate rocks. Channels aggraded rapidly as uplands were worn down, so the region changed through time from uplands to upper deltaic plain. Local environments included channels, localized point bars, small natural levees and crevasse splays, overbank deposits, and swamps. Differential compaction and subsidence, slumping stream banks, and possibly collapsing sinkholes influenced sedimentation. As a consequence, coals are too discontinuous for economical mining, although they are locally thick and high in quality.</p></div></div></div></div><div id=\"preview-section-introduction\"><br></div><div id=\"preview-section-snippets\"><br></div><div id=\"preview-section-references\"><br></div>","language":"English","publisher":"Elsevier","doi":"10.1016/0166-5162(85)90020-5","issn":"01665162","usgsCitation":"Nelson, W., Eggert, D.L., DiMichele, W.A., and Stecyk, A., 1985, Origin of discontinuities in coal-bearing strata at roaring creek (basal Pennsylvanian of Indiana): International Journal of Coal Geology, v. 4, no. 4, p. 355-370, https://doi.org/10.1016/0166-5162(85)90020-5.","productDescription":"16 p.","startPage":"355","endPage":"370","numberOfPages":"16","costCenters":[],"links":[{"id":220622,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a70cfe4b0c8380cd76271","contributors":{"authors":[{"text":"Nelson, W.J.","contributorId":17762,"corporation":false,"usgs":true,"family":"Nelson","given":"W.J.","email":"","affiliations":[],"preferred":false,"id":365244,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eggert, Donald L.","contributorId":19286,"corporation":false,"usgs":true,"family":"Eggert","given":"Donald","email":"","middleInitial":"L.","affiliations":[{"id":33640,"text":"Indiana Geological Survey","active":true,"usgs":false}],"preferred":false,"id":365245,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"DiMichele, William A.","contributorId":97631,"corporation":false,"usgs":true,"family":"DiMichele","given":"William","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":365247,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stecyk, A.C.","contributorId":86104,"corporation":false,"usgs":true,"family":"Stecyk","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":365246,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70012791,"text":"70012791 - 1985 - Determination of interstitial chloride in shales and consolidated rocks by a precision leaching technique","interactions":[],"lastModifiedDate":"2019-11-25T13:51:29","indexId":"70012791","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3411,"text":"Society of Petroleum Engineers journal","active":true,"publicationSubtype":{"id":10}},"title":"Determination of interstitial chloride in shales and consolidated rocks by a precision leaching technique","docAbstract":"<p><span>We have devised a technique for determining chloride in interstitial water of consolidated rocks. Samples of rocks ranging from 5 to 10 g are crushed and sieved under controlled conditions and then ground with distilled water to submicron size in a closed mechanical mill. After ultra-centrifugation, chloride content is determined by coulometric titration. The chloride concentrations and total pore-water concentrations, obtained earlier from the same pore-water concentrations, obtained earlier from the same samples by low-temperature vacuum desiccation, are used to arrive at the \"original\" pore-water chloride concentrations by a simple iteration procedure. Interstitial chlorinity results obtained from Cretaceous and Jurassic strata in the Gulf of Mexico coastal areas ranged from 20 to 100 g/kg Cl with reproducibility approaching +/- 1%. We have also applied the technique to igneous and metamorphic bedrocks as well as ocean basalts containing 1 % water or less. Chloride values ranging from 6.7 to 20 g/kg with a reproducibility of about 5% were obtained.</span></p>","language":"English","publisher":"Society of Petroleum Engineers","doi":"10.2118/12724-PA","issn":"01977520","usgsCitation":"Manheim, F., Peck, E., and Lane, C.M., 1985, Determination of interstitial chloride in shales and consolidated rocks by a precision leaching technique: Society of Petroleum Engineers journal, v. 25, no. 5, p. 704-710, https://doi.org/10.2118/12724-PA.","productDescription":"7 p.","startPage":"704","endPage":"710","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":222377,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"5","noUsgsAuthors":false,"publicationDate":"1985-10-01","publicationStatus":"PW","scienceBaseUri":"5059fd43e4b0c8380cd4e71a","contributors":{"authors":[{"text":"Manheim, Frank T. 0000-0003-4005-4524","orcid":"https://orcid.org/0000-0003-4005-4524","contributorId":45294,"corporation":false,"usgs":true,"family":"Manheim","given":"Frank T.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":364536,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peck, E.E.","contributorId":77302,"corporation":false,"usgs":true,"family":"Peck","given":"E.E.","email":"","affiliations":[],"preferred":false,"id":364537,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lane, Candice M.","contributorId":80823,"corporation":false,"usgs":true,"family":"Lane","given":"Candice","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":364538,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70012378,"text":"70012378 - 1985 - General P, type-I S, and type-II S waves in anelastic solids; inhomogeneous wave fields in low-loss solids","interactions":[],"lastModifiedDate":"2023-10-29T15:48:53.179701","indexId":"70012378","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","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}},"displayTitle":"General <i>P</i>, type-I <i>S</i>, and type-II <i>S</i> waves in anelastic solids; inhomogeneous wave fields in low-loss solids","title":"General P, type-I S, and type-II S waves in anelastic solids; inhomogeneous wave fields in low-loss solids","docAbstract":"<p>The physical characteristics for general plane-wave radiation fields in an arbitrary linear viscoelastic solid are derived. Expressions for the characteristics of inhomogeneous wave fields, derived in terms of those for homogeneous fields, are utilized to specify the characteristics and a set of reference curves for general&nbsp;<i>P</i>&nbsp;and&nbsp;<i>S</i>&nbsp;wave fields in arbitrary viscoelastic solids as a function of wave inhomogeneity and intrinsic material absorption. The expressions show that an increase in inhomogeneity of the wave fields causes the velocity to decrease, the fractional-energy loss (<i>Q</i><sup>−1</sup>) to increase, the deviation of maximum energy flow with respect to phase propagation to increase, and the elliptical particle motions for&nbsp;<i>P</i>&nbsp;and type-I&nbsp;<i>S</i>&nbsp;waves to approach circularity.&nbsp;<i>Q</i><sup>−1</sup>&nbsp;for inhomogeneous type-I&nbsp;<i>S</i>&nbsp;waves is shown to be greater than that for type-II&nbsp;<i>S</i>&nbsp;waves, with the deviation first increasing then decreasing with inhomogeneity. The mean energy densities (kinetic, potential, and total), the mean rate of energy dissipation, the mean energy flux, and&nbsp;<i>Q</i><sup>−1</sup>&nbsp;for inhomogeneous waves are shown to be greater than corresponding characteristics for homogeneous waves, with the deviations increasing as the inhomogeneity is increased for waves of fixed maximum displacement amplitude. For inhomogeneous wave fields in low-loss solids, only the tilt of the particle motion ellipse for&nbsp;<i>P</i>&nbsp;and type-I&nbsp;<i>S</i>&nbsp;waves is independent to first order of the degree of inhomogeneity. Quantitative estimates for the characteristics of inhomogeneous plane body waves in layered low-loss solids are derived and guidelines established for estimating the effect of inhomogeneity on seismic body waves and a Rayleigh-type surface wave in low-loss media.</p>","language":"English","publisher":"Seismological Society of America","doi":"10.1785/BSSA0750061729","issn":"00371106","usgsCitation":"Borcherdt, R.D., and Wennerberg, L., 1985, General P, type-I S, and type-II S waves in anelastic solids; inhomogeneous wave fields in low-loss solids: Bulletin of the Seismological Society of America, v. 75, no. 6, p. 1729-1763, https://doi.org/10.1785/BSSA0750061729.","productDescription":"35 p.","startPage":"1729","endPage":"1763","costCenters":[],"links":[{"id":222304,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"75","issue":"6","noUsgsAuthors":false,"publicationDate":"1985-12-01","publicationStatus":"PW","scienceBaseUri":"505a1448e4b0c8380cd549a0","contributors":{"authors":[{"text":"Borcherdt, Roger D. 0000-0002-8668-0849 borcherdt@usgs.gov","orcid":"https://orcid.org/0000-0002-8668-0849","contributorId":2373,"corporation":false,"usgs":true,"family":"Borcherdt","given":"Roger","email":"borcherdt@usgs.gov","middleInitial":"D.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":363410,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wennerberg, Leif","contributorId":96008,"corporation":false,"usgs":true,"family":"Wennerberg","given":"Leif","affiliations":[],"preferred":false,"id":363411,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013261,"text":"70013261 - 1985 - ART AND SCIENCE OF IMAGE MAPS.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:29","indexId":"70013261","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"ART AND SCIENCE OF IMAGE MAPS.","docAbstract":"The visual image of reflected light is influenced by the complex interplay of human color discrimination, spatial relationships, surface texture, and the spectral purity of light, dyes, and pigments. Scientific theories of image processing may not always achieve acceptable results as the variety of factors, some psychological, are in part, unpredictable. Tonal relationships that affect digital image processing and the transfer functions used to transform from the continuous-tone source image to a lithographic image, may be interpreted for an insight of where art and science fuse in the production process. The application of art and science in image map production at the U. S. Geological Survey is illustrated and discussed.","largerWorkTitle":"Technical Papers of the American Society of Photogrammetry, Annual Meeting","conferenceTitle":"Technical Papers, 51st Annual Meeting, 1985 ASP-ACSM Convention: Theodolite to Satellite.","conferenceLocation":"Washington, DC, USA","language":"English","publisher":"American Soc of Photogrammetry","publisherLocation":"Falls Church, VA, USA","isbn":"0937294640","usgsCitation":"Kidwell, R.D., and McSweeney, J.A., 1985, ART AND SCIENCE OF IMAGE MAPS., <i>in</i> Technical Papers of the American Society of Photogrammetry, Annual Meeting, v. 2, Washington, DC, USA, p. 771-782.","startPage":"771","endPage":"782","numberOfPages":"12","costCenters":[],"links":[{"id":220636,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e636e4b0c8380cd47255","contributors":{"authors":[{"text":"Kidwell, Richard D.","contributorId":31111,"corporation":false,"usgs":true,"family":"Kidwell","given":"Richard","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":365670,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McSweeney, Joseph A.","contributorId":51908,"corporation":false,"usgs":true,"family":"McSweeney","given":"Joseph","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":365671,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013266,"text":"70013266 - 1985 - MODELING HYDRAULIC PROBLEMS USING THE CVBEM AND THE MICROCOMPUTER.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:17","indexId":"70013266","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"MODELING HYDRAULIC PROBLEMS USING THE CVBEM AND THE MICROCOMPUTER.","docAbstract":"The Complex Variable Boundary Element Method (CVBEM) offers an effective and efficient means for modeling two-dimensional potential and related flow problems. The method has been applied to various hydraulic and hydrodynamic problems - surface water, ground water, and other flows - and has proven its accuracy, reliability and usefulness. The paper describes the CVBEM and its application.","conferenceTitle":"Hydraulics and Hydrology in the Small Computer Age, Proceedings of the Specialty Conference.","conferenceLocation":"Lake Buena Vista, FL, USA","language":"English","publisher":"ASCE","publisherLocation":"New York, NY, USA","isbn":"0872624749","usgsCitation":"Lai, C., and Hromadka, T., 1985, MODELING HYDRAULIC PROBLEMS USING THE CVBEM AND THE MICROCOMPUTER., Hydraulics and Hydrology in the Small Computer Age, Proceedings of the Specialty Conference., Lake Buena Vista, FL, USA, p. 444-449.","startPage":"444","endPage":"449","numberOfPages":"6","costCenters":[],"links":[{"id":219791,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4ad3e4b0c8380cd690a2","contributors":{"authors":[{"text":"Lai, Chintu","contributorId":16860,"corporation":false,"usgs":true,"family":"Lai","given":"Chintu","email":"","affiliations":[],"preferred":false,"id":365681,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hromadka, T. V. II","contributorId":76464,"corporation":false,"usgs":true,"family":"Hromadka","given":"T. V.","suffix":"II","affiliations":[],"preferred":false,"id":365682,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70012752,"text":"70012752 - 1985 - Characteristics of the aftershock sequence of the Borah Peak, Idaho, earthquake determined from digital recordings of the events","interactions":[],"lastModifiedDate":"2023-10-29T15:33:30.122709","indexId":"70012752","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","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":"Characteristics of the aftershock sequence of the Borah Peak, Idaho, earthquake determined from digital recordings of the events","docAbstract":"<p>The U.S. Geological Survey, Menlo Park, deployed and maintained a network of twelve digital instruments over the 2 weeks following the 28 October 1983 Borah Peak, Idaho, earthquake. The network recorded 45 events with M ≧ 3.0, and 6 events with M ≦ 4.0. The epicenters are located in a narrow band which parallels the trace of the surface fauiting up to the Willow Creek summit; the depths of the events range from 5 to 16 km. In the south, the distribution of hypocenters delineate a plane which dips to the southwest at 50°; to the north, the hypocenters dip steeply to the east. Composite focal mechanisms for three groups of events show normal faulting mechanisms; the mechanism of the aftershocks in the north appear rotated in both strike and dip from the aftershocks in the south. The seismic moments of the aftershocks increase with increasing hypocentral depth below 12 km. The dynamic stress drops of the events do not show any systematic variation with depth, however. Most of the events with large stress drops are clustered in the northwest limb of the aftershock distribution; the average stress drop of the southern events is 31 ± 16 bars, while the average stress drop of the events in the northwest limb is 77 ± 52 bars. This clustering of events with large stress drops marks an apparent stress concentration, possibly associated with the arrest of the main shock rupture propagation by a fracture barrier at depth.</p>","language":"English","publisher":"Seismological Society of America","doi":"10.1785/BSSA0750051265","issn":"00371106","usgsCitation":"Boatwright, J., 1985, Characteristics of the aftershock sequence of the Borah Peak, Idaho, earthquake determined from digital recordings of the events: Bulletin of the Seismological Society of America, v. 75, no. 5, p. 1265-1284, https://doi.org/10.1785/BSSA0750051265.","productDescription":"20 p.","startPage":"1265","endPage":"1284","numberOfPages":"20","costCenters":[],"links":[{"id":222612,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho","volume":"75","issue":"5","noUsgsAuthors":false,"publicationDate":"1985-10-01","publicationStatus":"PW","scienceBaseUri":"5059f2cbe4b0c8380cd4b391","contributors":{"authors":[{"text":"Boatwright, John 0000-0002-6931-5241 boat@usgs.gov","orcid":"https://orcid.org/0000-0002-6931-5241","contributorId":1938,"corporation":false,"usgs":true,"family":"Boatwright","given":"John","email":"boat@usgs.gov","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":364437,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70012712,"text":"70012712 - 1985 - Recent movement on the Garlock Fault as suggested by water level fluctuations in a well in Fremont Valley, California","interactions":[],"lastModifiedDate":"2024-06-27T15:42:10.956786","indexId":"70012712","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","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":"Recent movement on the Garlock Fault as suggested by water level fluctuations in a well in Fremont Valley, California","docAbstract":"<p><span>Water levels have been continuously recorded since March 1978 in a well in Fremont Valley, where several strands of the adjacent Garlock fault zone have exhibited both left-lateral displacement and components of normal displacement. Differences in water levels indicate that a fault segment lies between the observation well and a nearby irrigation well. During the 4-year recording period, six sharp fluctuations, or “spikes,” were noted. These fluctuations, occurring over 2- to 4-day periods, have amplitudes of 15–30 cm. They appear to be the result of creep events on a nearby fault. Two types of creep events are plausible: (1) normal slip on an en echelon trace of the Garlock fault less than 300 m south of the well, with the north side up relative to Fremont Valley or (2) left-lateral slip on the same fault. Because of the nature of the fluctuations we favor the latter interpretation. Dislocation models utilizing exponential, arc tangent, and skewed cosine functions were used to analyze the water level fluctuations, associated pressure distribution, and fault displacements. The results suggest that creep on the fault ranges from several millimeters to a centimeter for individual events. Estimates of cumulative creep for the period 1978–1982 range from 20 to 50 mm, depending on the particular model employed.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB090iB02p01911","issn":"01480227","usgsCitation":"Lippincott, D.K., Bredehoeft, J.D., and Moyle, W.R., 1985, Recent movement on the Garlock Fault as suggested by water level fluctuations in a well in Fremont Valley, California: Journal of Geophysical Research Solid Earth, v. 90, no. B2, p. 1911-1924, https://doi.org/10.1029/JB090iB02p01911.","productDescription":"14 p.","startPage":"1911","endPage":"1924","numberOfPages":"14","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":222032,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"90","issue":"B2","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a9333e4b0c8380cd80c81","contributors":{"authors":[{"text":"Lippincott, Diane K.","contributorId":46218,"corporation":false,"usgs":true,"family":"Lippincott","given":"Diane","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":364296,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bredehoeft, John D.","contributorId":86747,"corporation":false,"usgs":true,"family":"Bredehoeft","given":"John","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":364298,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moyle, W. R. Jr.","contributorId":85938,"corporation":false,"usgs":true,"family":"Moyle","given":"W.","suffix":"Jr.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":364297,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70012205,"text":"70012205 - 1985 - Trace element content of gossans at four mines in the West Shasta massive sulfide district","interactions":[],"lastModifiedDate":"2024-01-09T16:11:05.448457","indexId":"70012205","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","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":"Trace element content of gossans at four mines in the West Shasta massive sulfide district","docAbstract":"<p><span>We evaluated the trace element content of gossans at four mines in the West Shasta Cu-Zn mining district in California. We found little difference in trace element content between the chipped rock rind and whole-rock gossan samples. Gossans derived from disseminated sulfides were found to have a lower trace element content as well as a narrower range of values than did gossans derived from massive sulfides. Extreme differences in trace element concentrations in field duplicates of both chip and whole-rock gossan samples due to variations within the gossan bodies prevented use of the data at individual sampling sites for areal pattern studies. A computer program (REM), which uses a cell concept and groups the analysis of gossan at each mine, was used to characterize the trace element content. The gossan at the Mammoth mine had the highest anomaly magnitude and the highest element magnitudes for the most elements. Gossan at the Spread Eagle mine had a much different assemblage of elements relative to the other mines studied and had the lowest anomaly magnitude.</span></p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.80.8.2206","issn":"03610128","usgsCitation":"Sanzolone, R.F., and Domenico, J.A., 1985, Trace element content of gossans at four mines in the West Shasta massive sulfide district: Economic Geology, v. 80, no. 8, p. 2206-2212, https://doi.org/10.2113/gsecongeo.80.8.2206.","productDescription":"7 p.","startPage":"2206","endPage":"2212","numberOfPages":"7","costCenters":[],"links":[{"id":222296,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"80","issue":"8","noUsgsAuthors":false,"publicationDate":"1985-12-01","publicationStatus":"PW","scienceBaseUri":"505bb639e4b08c986b326b36","contributors":{"authors":[{"text":"Sanzolone, R. F.","contributorId":64199,"corporation":false,"usgs":true,"family":"Sanzolone","given":"R.","middleInitial":"F.","affiliations":[],"preferred":false,"id":362990,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Domenico, J. A.","contributorId":12028,"corporation":false,"usgs":true,"family":"Domenico","given":"J.","middleInitial":"A.","affiliations":[],"preferred":false,"id":362989,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70012206,"text":"70012206 - 1985 - Airfall tuff in the Browns Park Formation, northwestern Colorado and northeastern Utah.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:08","indexId":"70012206","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","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":"Airfall tuff in the Browns Park Formation, northwestern Colorado and northeastern Utah.","docAbstract":"Bedded airfall tuffs, mainly rhyolitic in composition and locally very thick, occur throughout the Browns Park Formation (upper Oligocene to upper Miocene) in northwestern Colorado and northeasternmost Utah. They have received only cursory attention other than for the purpose of radiometric dating. The present writer began study of the tuffs in 1980, hoping to use them as time-stratigraphic marker beds within the formation. Several tuff-rich stratigraphic sections were measured and numerous samples were collected. The results of petrographic and petrochemical studies of these samples are presented. -from Author","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mountain Geologist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0027254X","usgsCitation":"Luft, S.J., 1985, Airfall tuff in the Browns Park Formation, northwestern Colorado and northeastern Utah.: Mountain Geologist, v. 22, no. 3, p. 110-127.","startPage":"110","endPage":"127","numberOfPages":"18","costCenters":[],"links":[{"id":222297,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e92be4b0c8380cd4812d","contributors":{"authors":[{"text":"Luft, S. J.","contributorId":95127,"corporation":false,"usgs":true,"family":"Luft","given":"S.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":362991,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013263,"text":"70013263 - 1985 - Copper and silver accumulation in transplanted and resident clams (Macoma balthica) in South San Francisco Bay","interactions":[],"lastModifiedDate":"2020-01-19T10:54:00","indexId":"70013263","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2664,"text":"Marine Environmental Research","active":true,"publicationSubtype":{"id":10}},"title":"Copper and silver accumulation in transplanted and resident clams (Macoma balthica) in South San Francisco Bay","docAbstract":"<p>Accumulation of Cu and Ag by soft tissues of the deposit-feeding clam Macoma balthica was less than half in clams transplanted to a contaminated area than in clams native to that area. During a period of tissue growth, the transplants retained 50% and 90%, respectively, of the net Cu and Ag accumulated, but loss of metals from soft tissue by the resident population equalled net accumulation. Copper accumulation in the transplants did not occur during some periods when increases in the metal body burden of the resident population indicated that environmental exposures were high. The difference in metal accumulation of the two groups of clams may be the result of past environmental exposures. The results illustrate some limitations of using transplants as indicators of pollution events or of pollutant impact upon resident populations.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0141-1136(85)90133-3","issn":"01411136","usgsCitation":"Cain, D., and Luoma, S.N., 1985, Copper and silver accumulation in transplanted and resident clams (Macoma balthica) in South San Francisco Bay: Marine Environmental Research, v. 15, no. 2, p. 115-135, https://doi.org/10.1016/0141-1136(85)90133-3.","productDescription":"21 p.","startPage":"115","endPage":"135","numberOfPages":"21","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":219788,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"South San Francisco Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.84912109375,\n              37.274052809979054\n            ],\n            [\n              -121.57470703125,\n              37.274052809979054\n            ],\n            [\n              -121.57470703125,\n              37.88352498087131\n            ],\n            [\n              -122.84912109375,\n              37.88352498087131\n            ],\n            [\n              -122.84912109375,\n              37.274052809979054\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"15","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fbf7e4b0c8380cd4e060","contributors":{"authors":[{"text":"Cain, D.J.","contributorId":68329,"corporation":false,"usgs":true,"family":"Cain","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":365673,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Luoma, Samuel N. 0000-0001-5443-5091 snluoma@usgs.gov","orcid":"https://orcid.org/0000-0001-5443-5091","contributorId":2287,"corporation":false,"usgs":true,"family":"Luoma","given":"Samuel","email":"snluoma@usgs.gov","middleInitial":"N.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":779759,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70009946,"text":"70009946 - 1985 - Volcano hazards program in the United States","interactions":[],"lastModifiedDate":"2024-05-07T16:23:06.155549","indexId":"70009946","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2304,"text":"Journal of Geodynamics","active":true,"publicationSubtype":{"id":10}},"title":"Volcano hazards program in the United States","docAbstract":"<p>Volcano monitoring and volcanic-hazards studies have received greatly increased attention in the United States in the past few years. Before 1980, the Volcanic Hazards Program was primarily focused on the active volcanoes of Kilauea and Mauna Loa, Hawaii, which have been monitored continuously since 1912 by the Hawaiian Volcano Observatory. After the reawakening and catastrophic eruption of Mount St. Helens in 1980, the program was substantially expanded as the government and general public became aware of the potential for eruptions and associated hazards within the conterminous United States. Integrated components of the expanded program include: volcanic-hazards assessment; volcano monitoring; fundamental research; and, in concert with federal, state, and local authorities, emergency-response planning.</p><p>In 1980 the David A. Johnston Cascades Volcano Observatory was established in Vancouver, Washington, to systematically monitor the continuing activity of Mount St. Helens, and to acquire baseline data for monitoring the other, presently quiescent, but potentially dangerous Cascade volcanoes in the Pacific Northwest. Since June 1980, all of the eruptions of Mount St. Helens have been predicted successfully on the basis of seismic and geodetic monitoring.</p><p>The largest volcanic eruptions, but the least probable statistically, that pose a threat to western conterminous United States are those from the large Pleistocene-Holocene volcanic systems, such as Long Valley caldera (California) and Yellowstone caldera (Wyoming), which are underlain by large magma chambers still potentially capable of producing catastrophic caldera-forming eruptions. In order to become better prepared for possible future hazards associated with such historically unpecedented events, detailed studies of these, and similar, large volcanic systems should be intensified to gain better insight into caldera-forming processes and to recognize, if possible, the precursors of caldera-forming eruptions.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0264-3707(85)90045-6","issn":"02643707","usgsCitation":"Tilling, R., and Bailey, R., 1985, Volcano hazards program in the United States: Journal of Geodynamics, v. 3, no. 3-4, p. 425-446, https://doi.org/10.1016/0264-3707(85)90045-6.","productDescription":"22 p.","startPage":"425","endPage":"446","numberOfPages":"22","costCenters":[],"links":[{"id":487131,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.1016/0264-3707(85)90045-6","text":"External Repository"},{"id":219195,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"3","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc334e4b08c986b32affc","contributors":{"authors":[{"text":"Tilling, R.I. 0000-0003-4263-7221","orcid":"https://orcid.org/0000-0003-4263-7221","contributorId":98311,"corporation":false,"usgs":true,"family":"Tilling","given":"R.I.","affiliations":[],"preferred":false,"id":357508,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bailey, R. A.","contributorId":87531,"corporation":false,"usgs":true,"family":"Bailey","given":"R. A.","affiliations":[],"preferred":false,"id":357507,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}