New radiometric ages on tuffs from south-central Peru support the postulated flare-up of volcanic activity during early Miocene time. In the region of Huancavelica, Julcani, and Lircay, lower Miocene rocks lie on folded strata of pre-Cenozoic age; the absence of units of Eocene and early Oligocene age indicates that this area remained positive after Incaic deformation in Eocene time. Conglomerate beds reflecting erosion attendant on the first pulse of late Cenozoic (Quechuan) compressive deformation do not appear in the stratigraphic record until after 21.5 m.y. B.P. In one section, beds of coarse conglomerate are underlain by tuff dated at 18.3 ± 0.6 m.y. and overlain by tuff dated at 17.3 ± 0.2 m.y. At another locality, beds of conglomerate conformably overlie tuff dated at 19.6 ± 0.8 m.y. If we incorporate published data from other areas in central and southern Peru, it appears that Quechuan deformation began in early Miocene time between 19.5 and 17 m.y. ago. A firm age for the end of the first pulse of Quechuan deformation in this region is provided by an ash-flow sheet dated at 12 to 12.5 m.y. that unconformably overlies strata of Eocene to early Miocene age.
Midrange sidescan sonar data (swath width = 5 km) show that a system of gullies and small channels feeds into large submarine canyons on the Middle Atlantic Continental Slope of the United States. The surveyed canyons all have relatively flat floors, but they have different channel morphologies. Wilmington Canyon has a meandering channel that extends down the Continental Slope and across the Continental Rise, whereas two canyons south of Wilmington Canyon have straight channels that trend directly downslope onto the rise. The morphology of these submarine canyon systems is remarkably similar to that of terrestrial fluvial systems.
Although no significant major-element contamination is introduced by grinding coal in a steel pulverizer, abraded steel particles can conceivably affect the magnetic properties of pulverized coal. Magnetic and scanning-electron-microscope analyses of pulverized coal and coal fragments from the Herrin No. 6 seam in Illinois showed ferromagnetic and superparamagnetic contamination from the grinder. Significant changes in the magnetic properties of the coal were noted, indicating a total steel contamination of approximately 0.02 wt%. When coal samples were vibrated in the magnetic field of the vibrating-sample magnetometer, the superparamagnetic steel particles moved through the pulverized coal, and participated in the formation of multidomain clusters that in turn substantially affected the magnetization of the coal.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-2361(82)90297-6","issn":"00162361","usgsCitation":"Senftle, F.E., Thorpe, A.N., Alexander, C., and Finkelman, R.B., 1982, Ferromagnetic and superparamagnetic contamination in pulverized coal: Fuel, v. 61, no. 1, p. 81-86, https://doi.org/10.1016/0016-2361(82)90297-6.","productDescription":"6 p.","startPage":"81","endPage":"86","costCenters":[],"links":[{"id":221549,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Illinois","otherGeospatial":"Herrin No. 6 Seam","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -89.45141712256527,\n 37.702167500929974\n ],\n [\n -88.89274752745737,\n 37.702167500929974\n ],\n [\n -88.89274752745737,\n 38.39142356916298\n ],\n [\n -89.45141712256527,\n 38.39142356916298\n ],\n [\n -89.45141712256527,\n 37.702167500929974\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"61","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0f85e4b0c8380cd5392b","contributors":{"authors":[{"text":"Senftle, F. E.","contributorId":47788,"corporation":false,"usgs":true,"family":"Senftle","given":"F.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":362084,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thorpe, A. N.","contributorId":53504,"corporation":false,"usgs":true,"family":"Thorpe","given":"A.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":362085,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alexander, C.C.","contributorId":34256,"corporation":false,"usgs":true,"family":"Alexander","given":"C.C.","email":"","affiliations":[],"preferred":false,"id":362083,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Finkelman, R. B.","contributorId":20341,"corporation":false,"usgs":true,"family":"Finkelman","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":362082,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70011737,"text":"70011737 - 1982 - Periodic climate change on Mars: Review of evidence and effects on distribution of volatiles","interactions":[],"lastModifiedDate":"2024-02-16T12:26:36.580688","indexId":"70011737","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Periodic climate change on Mars: Review of evidence and effects on distribution of volatiles","docAbstract":"The polar regions of Mars preserve, in both their layering and their topography, a record of recent climate changes. Because of the coincidence of the growth of the northern seasonal cap with global dust storms, dust may be currently accumulating on the northern cap, but conditions at the poles will alternate with the precessional cycle. Deposition is also modulated by changes in eccentricity and obliquity, which interact complexly, affecting initiation of global dust storms, the stability of volatiles at the surface, and global wind regimes. Formation of spiral valleys and low undulations on the surface of the layered deposits may result from prefential sublimation of volatiles on sunward-facing slopes and condensation on the adjacent flats, with the rates also modulated by astronomically caused insolation variations. Lack of impact craters on the surface and lack of interruption of the layers by impact scars suggest that the polar deposits are no more than a few million years old. Older deposits may have been periodically removed, as indicated by etch-pitted terrain at the south pole and by superposition relations around the periphery of the present layered deposits. Evidence of ancient periodic climate changes that occurred before formation of the present layered terrain is fragmentary but includes pedestal craters, parallel moraine-like ridges, and etched ground at high latitudes. Perturbation of the orbital motions also results in adsorption and desorption of volatiles in the regolith, which leads to variations in atmospheric pressure and partial dehydration of the equatorial near-surface materials.
Some 70 pingos occur at 27 separate localities within and near the Brooks Range. The pingos are distributed through mountain valleys at altitudes up to 725 m and in terrain glaciated as recently as late Wisconsinan time. Most are open-system forms; possible closed-system pingos are present at only a single locality in a northern valley. Some pingos occur on thick alluvial or lacustrine sediments, but many seem to be localized above near-surface bedrock and possibly are related to northeast-trending fracture systems. Pingos are particularly abundant in the Koyukuk and Chandalar drainage systems of the south-central Brooks Range, where they may be associated with structural features of regional extent.
","language":"English","publisher":"INSTAAR, University of Colorado","doi":"10.2307/1550810","usgsCitation":"Hamilton, T.D., and Obi, C.M., 1982, Pingos in the Brooks Range, northern Alaska, U.S.A.: Arctic and Alpine Research, v. 14, no. 1, p. 13-20, https://doi.org/10.2307/1550810.","productDescription":"8 p.","startPage":"13","endPage":"20","costCenters":[],"links":[{"id":221395,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Brooks Range","volume":"14","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7b70e4b0c8380cd7944d","contributors":{"authors":[{"text":"Hamilton, T. D.","contributorId":36921,"corporation":false,"usgs":true,"family":"Hamilton","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":362066,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Obi, Curtis M.","contributorId":86829,"corporation":false,"usgs":true,"family":"Obi","given":"Curtis","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":362067,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011722,"text":"70011722 - 1982 - Biostratigraphy and structural setting of the Permian Coyote Butte Formation of central Oregon","interactions":[],"lastModifiedDate":"2024-01-31T12:13:47.456206","indexId":"70011722","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Biostratigraphy and structural setting of the Permian Coyote Butte Formation of central Oregon","docAbstract":"Larger isolated outcrops of the limestones of the Coyote Butte Formation consistently contain younger over older faunas that range through most of the Leonardian Series of the Early Permian. The outcrops of the Coyote Butte Formation are interpreted as right-side up blocks probably introduced into the area as one massive exotic unit. The Coyote Butte Formation is very similar to the Lower Permian limestone near Quinn River Crossing, Nevada, and both are suggested to have a similar origin. The Coyote Butte Formation was probably introduced during a late-stage event to deforming Mesozoic oceanic sediments in Mesozoic time.
Resin rodlets, sclerenchyma strands and woody splinters, which are collectively called rodlets, were studied by chemical, optical petrographic, and scanning-electron microscopic (SEM) techniques. A study was made of such rodlets from the bituminous coal beds of the central Appalachian basin (Pennsylvanian; Upper Carboniferous) of the United States. Comparisons were made with rodlets from coal beds of the Illinois basin, the Southern Anthracite Field of Pennsylvania, the St. Rose coal field of Nova Scotia, and European and other coal fields. In order to determine their physical and chemical properties, a detailed study was made of the rodlets from the Pomeroy coal bed (high volatile A bituminous coal; Monongahela Formation; Upper Pennsylvanian) of Kanawha County, West Virginia. The origin of the rodlets was determined by a comparative analysis of a medullosan (seed fern) stem from the Herrin (No. 6) coal bed (high volatile C bituminous coal; Carbondale Formation) from Washington County, Illinois. Rodlets are commonly concentrated in fusain or carbominerite layers or lenses in bituminous coal beds of the central Appalachian basin. Most of the rodlets examined in our study were probably derived from medullosan seed ferns. The three types of rodlets are distinguished on the basis of cellularity, morphology and fracture.
","language":"English","publisher":"Elsevier","doi":"10.1016/0166-5162(82)90019-2","issn":"01665162","usgsCitation":"Lyons, P., Finkelman, R.B., Thompson, C., Brown, F.W., and Hatcher, P.G., 1982, Properties, origin and nomenclature of rodlets of the inertinite maceral group in coals of the central Appalachian basin, U.S.A.: International Journal of Coal Geology, v. 1, no. 4, p. 313-346, https://doi.org/10.1016/0166-5162(82)90019-2.","productDescription":"34 p.","startPage":"313","endPage":"346","numberOfPages":"34","costCenters":[],"links":[{"id":221263,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8f26e4b0c8380cd7f5d7","contributors":{"authors":[{"text":"Lyons, P.C.","contributorId":87285,"corporation":false,"usgs":true,"family":"Lyons","given":"P.C.","email":"","affiliations":[],"preferred":false,"id":362218,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Finkelman, R. B.","contributorId":20341,"corporation":false,"usgs":true,"family":"Finkelman","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":362217,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thompson, C.L.","contributorId":12189,"corporation":false,"usgs":true,"family":"Thompson","given":"C.L.","email":"","affiliations":[],"preferred":false,"id":362216,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brown, F. W.","contributorId":92653,"corporation":false,"usgs":true,"family":"Brown","given":"F.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":362219,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hatcher, Patrick G.","contributorId":93625,"corporation":false,"usgs":true,"family":"Hatcher","given":"Patrick","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":362220,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70011829,"text":"70011829 - 1982 - Fission-track ages of late Cenozoic distal tephra beds in the Yukon Territory and Alaska","interactions":[],"lastModifiedDate":"2023-09-26T13:59:53.306772","indexId":"70011829","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1168,"text":"Canadian Journal of Earth Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Fission-track ages of late Cenozoic distal tephra beds in the Yukon Territory and Alaska","docAbstract":"Six distal tephra beds from the Yukon Territory and Alaska have been dated by the fission-track method. Zircon and glass ages were determined for the Fort Selkirk and Lost Chicken tephra beds, but only glass ages for the others.Assuming that no track fading has occurred in the glass, Old Crow and Dawson tephra beds are younger than 120 000 and 52 000 years BP, respectively. Mosquito Gulch tephra is 1.22 Ma old, Fort Selkirk tephra is about 1 Ma old, the Ester Ash Bed is 0.45 Ma old, and the best estimate of the age of Lost Chicken tephra is the range 1.7–2.6 Ma.It is evident from these results and from the known abundance of tephra beds within late Cenozoic deposits of the Yukon Territory and Alaska that application of the fission-track method to distal tephra, in conjunction with detailed characterization studies, offers great potential for elucidation of the late Cenozoic geologic history of Alaska and the Yukon Territory.
","language":"English","publisher":"Canadian Science Publishing","doi":"10.1139/e82-191","issn":"00084077","usgsCitation":"Naeser, N.D., Westgate, J., Hughes, O., and Pewe, T.L., 1982, Fission-track ages of late Cenozoic distal tephra beds in the Yukon Territory and Alaska: Canadian Journal of Earth Sciences, v. 19, no. 11, p. 2167-2178, https://doi.org/10.1139/e82-191.","productDescription":"12 p.","startPage":"2167","endPage":"2178","costCenters":[],"links":[{"id":221391,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","state":"Alaska, Yukon Territory","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -158.69193991166577,\n 68.55438357654228\n ],\n [\n -158.69193991166577,\n 61.07906846035132\n ],\n [\n -136.32633007152998,\n 61.07906846035132\n ],\n [\n -136.32633007152998,\n 68.55438357654228\n ],\n [\n -158.69193991166577,\n 68.55438357654228\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"19","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a10c0e4b0c8380cd53dc0","contributors":{"authors":[{"text":"Naeser, N. D.","contributorId":74510,"corporation":false,"usgs":true,"family":"Naeser","given":"N.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":362057,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Westgate, J.A.","contributorId":63164,"corporation":false,"usgs":true,"family":"Westgate","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":362056,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hughes, O.L.","contributorId":98469,"corporation":false,"usgs":true,"family":"Hughes","given":"O.L.","email":"","affiliations":[],"preferred":false,"id":362058,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pewe, T. L.","contributorId":35786,"corporation":false,"usgs":true,"family":"Pewe","given":"T.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":362055,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70011828,"text":"70011828 - 1982 - Dwornikite, (Ni,Fe)SO4 · H2O, a member of the kieserite group from Minasragra, Peru","interactions":[],"lastModifiedDate":"2024-10-07T15:27:29.206281","indexId":"70011828","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2748,"text":"Mineralogical Magazine","active":true,"publicationSubtype":{"id":10}},"title":"Dwornikite, (Ni,Fe)SO4 · H2O, a member of the kieserite group from Minasragra, Peru","docAbstract":"Dwornikite, (Ni1−xFex)SO4 · H2O is a member of the kieserite group, monoclinic with space group C2/c. Specimens from Minasragra, Peru with x ∼ 0.1 have a unit cell with a = 6.839(2), b = 7.582(2), c = 7.474(2) Å, and β = 117.85(2)°. The six strongest lines of the powder pattern are: 3.342 (![\"\"](\"https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20210211061412243-0494:S0026461X00053007:S0026461X00053007_inline01.png?pub-status=live\")
12, 100), 4.732 (110, 70), 3.024 (200, 70), 4.754 (11, 50), 3.293 (021, 35), 2.491 (022, 35). The mineral occurs as fine grained white aggregates associated with vanadium sulphide ores containing patronite and bravoite, mixed with other oxidation products. New unit cell data for the synthetic end-member compounds NiSO4 · H2O and FeSO4 · H2O, and new X-ray powder data for retgersite (NiSO4 · 6H2O) are provided.
Beta MnOOH is precipitated preferentially (with respect to Mn3O4) at temperatures near O°C when Mn2+ is oxidized in aerated aqueous solutions. Upon aging in solutions open to the atmosphere a slurry of βMnOOH tends to disproportionate to form MnO2 and Mn2+. In such aged solutions, Mn2+ and H+ activities can be constant, and both the oxidation reaction Mn2++¼O2(aq) + 3/2H2O → βMnOOH (c) + 2H+ and the disproportionate reaction 2βMnOOH (c) + 2H+ → MnO2(c) + Mn2+ + 2H2O can have positive reaction affinities. It is not possible for both reactions to be in thermodynamic equilibrium in the same system unless oxygen is almost completely absent. A value for ΔGf0 of −129.8±0.6 kcal/mol was obtained for βMnOOH from experimental data by assuming that the reaction affinity for the oxidation reaction is equal to that for the disproportionation. A value for ΔGf0 for βMnOOH of −129.8±0.5 kcal/mol was determined by measuring the redox potentials for the postulated half-reaction MnO2 (c) + H+ + e− → βMnOOH (c) at 0°, 5°, and 15°C and extrapolating to 25°C. Both these values are consistent with laboratory observations that βMnOOH is less stable than γMnOOH or Mn3O4 at 25°C. Analytical data for manganese-depositing springwater samples are consistent with a nonequilibrium model involving disproportionation of either βMnOOH or Mn3O4.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR018i003p00563","usgsCitation":"Hem, J., Roberson, C.E., and Fournier, R.B., 1982, Stability of βMnOOH and manganese oxide deposition from springwater: Water Resources Research, v. 18, no. 3, p. 563-570, https://doi.org/10.1029/WR018i003p00563.","productDescription":"8 p.","startPage":"563","endPage":"570","costCenters":[],"links":[{"id":221543,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"3","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"505b964fe4b08c986b31b426","contributors":{"authors":[{"text":"Hem, J.D.","contributorId":54576,"corporation":false,"usgs":true,"family":"Hem","given":"J.D.","affiliations":[],"preferred":false,"id":361805,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roberson, C. E.","contributorId":40190,"corporation":false,"usgs":true,"family":"Roberson","given":"C.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":361804,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fournier, Reba B.","contributorId":51355,"corporation":false,"usgs":false,"family":"Fournier","given":"Reba","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":361806,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011788,"text":"70011788 - 1982 - The oxygen isotope composition of granitoid and sedimentary rocks of the southern Snake Range, Nevada","interactions":[],"lastModifiedDate":"2012-03-12T17:18:32","indexId":"70011788","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","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":"The oxygen isotope composition of granitoid and sedimentary rocks of the southern Snake Range, Nevada","docAbstract":"Six diverse intrusive igneous types are exposed as discrete outcrops within an area of 900 km2 in the southern Snake Range, White Pine County, Nevada. The previously recognized variety among these igneous types is reflected in the wide range of ??18O values (-1.1 to 13.4 permil) found in these rocks. This range of ??18O values probably results from differences in source material and post-crystallization history of the different intrusive types. The Jurassic intrusive of the Snake Creek-Williams Canyon area represents the chemical equivalent of a large part of a differentiation sequence, with the entire range of composition (63-76 percent SiO2) exposed over a horizontal distance of about five km. The rather regular increase of ??18O values from the most mafic to the most felsic parts of this pluton, together with ??18O values determined for constituent minerals recovered from five of the samples, supports a fractional crystallization model. The high ??18O values found (10.2-12.2 permil) indicate that the magma likely was derived from or assimilated sedimentary materials. Nine samples of the Cretaceous two-mica granite of the Pole Canyon-Can Young Canyon area have ??18O values in the range 10.6-12.1 permil. These high ??18O values, an initial87Sr/86Sr ratio of 0.7165, and the presence of muscovite along with an accessory mineral suite limited to monazite, apatite, zircon, and an allanite-like mineral, characterize this intrusive mass as an S-type granite. It probably formed through anatexis of late Precambrian pelitic rocks. The granitoid rock exposed in the Young Canyon-Kious Basin area is Tertiary (32 m.y.). Most of this intrusive has been cataclastically deformed as a result of late (18 m.y.) movement on the overlying Snake Range decollement. The undeformed portion of this intrusive has ??18O values of 8.7-10.0 permil. However, the deformed portion of this intrusive has ??18O values as low as -1.1 permil, apparently resulting from isotopic exchange between this rock and ground water at the time of cataclasis. Although the igneous types exposed in the southern Snake Range differ petrologically and range in age from Jurassic to Tertiary, most have relatively high ??18O values compared with other granitoid rocks of the Basin-Range Province. ?? 1982 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/BF01132884","issn":"00107999","usgsCitation":"Lee, D.E., Friedman, I., and Gleason, J., 1982, The oxygen isotope composition of granitoid and sedimentary rocks of the southern Snake Range, Nevada: Contributions to Mineralogy and Petrology, v. 79, no. 2, p. 150-158, https://doi.org/10.1007/BF01132884.","startPage":"150","endPage":"158","numberOfPages":"9","costCenters":[],"links":[{"id":205059,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF01132884"},{"id":220721,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"79","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bae78e4b08c986b324104","contributors":{"authors":[{"text":"Lee, D. E.","contributorId":96705,"corporation":false,"usgs":true,"family":"Lee","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":361962,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Friedman, I.","contributorId":95596,"corporation":false,"usgs":true,"family":"Friedman","given":"I.","email":"","affiliations":[],"preferred":false,"id":361961,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gleason, J.D.","contributorId":27072,"corporation":false,"usgs":true,"family":"Gleason","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":361960,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011542,"text":"70011542 - 1982 - The graphic cell method: a new look at digitizing geologic maps","interactions":[],"lastModifiedDate":"2013-01-21T15:52:05","indexId":"70011542","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1315,"text":"Computers & Geosciences","printIssn":"0098-3004","active":true,"publicationSubtype":{"id":10}},"title":"The graphic cell method: a new look at digitizing geologic maps","docAbstract":"The graphic cell method is an alternative method of digitizing areal geologic information. It involves a discrete-point sampling scheme in which the computer establishes a matrix of cells over the map. Each cell and the whole cell is assigned the identity or value of the geologic information that is recognized at its center. Cell size may be changed to suit the needs of the user. The computer program resolves the matrix and identifies potential errors such as multiple assignments. Input includes the digitized boundaries of each geologic formation. This method should eliminate a primary bottleneck in the creation and testing of geomathematical models in such disciplines as resource appraisal. ?? 1982.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Computers and Geosciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/0098-3004(82)90018-8","issn":"00983004","usgsCitation":"Hanley, J., 1982, The graphic cell method: a new look at digitizing geologic maps: Computers & Geosciences, v. 8, no. 2, p. 149-161, https://doi.org/10.1016/0098-3004(82)90018-8.","startPage":"149","endPage":"161","numberOfPages":"13","costCenters":[],"links":[{"id":266194,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0098-3004(82)90018-8"},{"id":220912,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bac96e4b08c986b3235d5","contributors":{"authors":[{"text":"Hanley, J.T.","contributorId":73192,"corporation":false,"usgs":true,"family":"Hanley","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":361361,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011784,"text":"70011784 - 1982 - Geotechnical characteristics of bottom sediments in the northeastern Bering Sea.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:03","indexId":"70011784","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1794,"text":"Geologie en Mijnbouw","active":true,"publicationSubtype":{"id":10}},"title":"Geotechnical characteristics of bottom sediments in the northeastern Bering Sea.","docAbstract":"Sediment of Holocene age derived from the Yukon River, consisting dominantly of silty fine sand and sandy silt, covers the bottom of central and western Norton Sound, which is a high energy environment involving extensive ice loading, high waves, and strong bottom currents. The sediment characteristics indicate that it is susceptible to liquefaction during major storms. Substantially finer grained, weak and highly compressible sediment of Holocene age covers eastern Norton Sound and the Port Clarence embayment, which are low energy environments. Pleistocene peaty deposits underlie the Holocene and late Pleistocene deposits in both Norton Sound and Chirikov Basin and are somewhat overconsolidated. The presence of gas indicates high in situ pore pressure and hence low material strength.-from Authors","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geologie en Mijnbouw","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Olsen, H.W., Clukey, E., and Nelson, C., 1982, Geotechnical characteristics of bottom sediments in the northeastern Bering Sea.: Geologie en Mijnbouw, v. 61, no. 1, p. 91-103.","startPage":"91","endPage":"103","numberOfPages":"13","costCenters":[],"links":[{"id":221775,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"61","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a28b7e4b0c8380cd5a34b","contributors":{"authors":[{"text":"Olsen, H. W.","contributorId":10060,"corporation":false,"usgs":true,"family":"Olsen","given":"H.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":361952,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clukey, E.C.","contributorId":52720,"corporation":false,"usgs":true,"family":"Clukey","given":"E.C.","email":"","affiliations":[],"preferred":false,"id":361953,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nelson, C.H.","contributorId":88346,"corporation":false,"usgs":true,"family":"Nelson","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":361954,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011781,"text":"70011781 - 1982 - Geology of continental shelf, Onslow Bay, North Carolina, as revealed by submarine outcrops","interactions":[],"lastModifiedDate":"2023-01-11T16:49:27.167622","indexId":"70011781","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":701,"text":"American Association of Petroleum Geologists Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Geology of continental shelf, Onslow Bay, North Carolina, as revealed by submarine outcrops","docAbstract":"Lithologic and stratigraphic data from rocks dredged from the continental shelf off Onslow Bay, North Carolina, provide surface control for seismic studies of the southeastern United States continental margin and help to explain the distribution of potentially economic phosphate-rich sediments on this shelf. Outcropping Miocene rocks in this area indicate that the region has long been a positive geologic feature and has received relatively little Pliocene and Pleistocene sedimentation. -from Authors","language":"English","publisher":"American Association of Petroleum Geologists","doi":"10.1306/03B59A1C-16D1-11D7-8645000102C1865D","usgsCitation":"Blackwelder, B.W., Macintyre, I.G., and Pilkey, O.H., 1982, Geology of continental shelf, Onslow Bay, North Carolina, as revealed by submarine outcrops: American Association of Petroleum Geologists Bulletin, v. 66, no. 1, p. 44-56, https://doi.org/10.1306/03B59A1C-16D1-11D7-8645000102C1865D.","productDescription":"13 p.","startPage":"44","endPage":"56","numberOfPages":"13","costCenters":[],"links":[{"id":221695,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North Carolina","otherGeospatial":"Onslow Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -76.44373147728382,\n 34.79157094249153\n ],\n [\n -78.03355465391473,\n 34.79157094249153\n ],\n [\n -78.03355465391473,\n 33.75214968374051\n ],\n [\n -76.44373147728382,\n 33.75214968374051\n ],\n [\n -76.44373147728382,\n 34.79157094249153\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"66","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a24bee4b0c8380cd58352","contributors":{"authors":[{"text":"Blackwelder, Blake W.","contributorId":56640,"corporation":false,"usgs":true,"family":"Blackwelder","given":"Blake","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":361947,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Macintyre, Ian G.","contributorId":94037,"corporation":false,"usgs":true,"family":"Macintyre","given":"Ian","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":361946,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pilkey, Orrin H.","contributorId":11606,"corporation":false,"usgs":true,"family":"Pilkey","given":"Orrin","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":361948,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011638,"text":"70011638 - 1982 - Genetic relations among basic lavas and ultramafic nodules: Evidence from oxygen isotope compositions","interactions":[],"lastModifiedDate":"2012-03-12T17:18:33","indexId":"70011638","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","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":"Genetic relations among basic lavas and ultramafic nodules: Evidence from oxygen isotope compositions","docAbstract":"??18O values of unaltered basic lavas range from 4.9 to 8.3 but different types of basalts are usually restricted to narrow and distinct ranges of isotopic composition. The average ??18O values for Hawaiian tholeiites, mid-ocean ridge tholeiites, and alkali basalts are 5.4, 5.7, and 6.2 permil, respectively. Potassic lavas and andesites tend to be more 18O rich with ??18O values between 6.0 and 8.0 permil. The differences among the oxygen isotopic compositions of most of these lavas can be attributed to partial melting of isotopically distinct sources. The oxygen isotope compositions of the sources may be a function of prior melting events which produce 18O-depleted partial melts and 18O-enriched residues as a consequence of relatively large isotopic fractionations that exist at high temperatures. It is proposed that lavas with relatively low ??18O values are derived from primitive, 18O-depleted sources whereas 18O-rich basalts are produced from refractory sources that have already produced partial melts. High temperature fractionations among silicate liquids and coexisting minerals can be used in conjunction with the oxygen isotope compositions of ultramafic nodules to place constraints on the genetic relations between some nodules and different types of basic lavas. ?? 1982 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/BF00372046","issn":"00107999","usgsCitation":"Kyser, T., O’Neil, J.R., and Carmichael, I.S., 1982, Genetic relations among basic lavas and ultramafic nodules: Evidence from oxygen isotope compositions: Contributions to Mineralogy and Petrology, v. 81, no. 2, p. 88-102, https://doi.org/10.1007/BF00372046.","startPage":"88","endPage":"102","numberOfPages":"15","costCenters":[],"links":[{"id":221247,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":205102,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00372046"}],"volume":"81","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1580e4b0c8380cd54e47","contributors":{"authors":[{"text":"Kyser, T.K.","contributorId":25585,"corporation":false,"usgs":true,"family":"Kyser","given":"T.K.","email":"","affiliations":[],"preferred":false,"id":361589,"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":361591,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carmichael, I. S. E.","contributorId":61558,"corporation":false,"usgs":true,"family":"Carmichael","given":"I.","email":"","middleInitial":"S. E.","affiliations":[],"preferred":false,"id":361590,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011766,"text":"70011766 - 1982 - Interfingering of the Frontier Formation and Aspen Shale, Cumberland Gap, Wyoming.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:32","indexId":"70011766","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","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":"Interfingering of the Frontier Formation and Aspen Shale, Cumberland Gap, Wyoming.","docAbstract":"The basal part, or the Chalk Creek Member, of the non-marine lower Frontier Formation (Upper Cretaceous) includes a thin coal bed that grades S into a carbonaceous shale. The latter plus associated sandstones and shales pinch out S of Cumberland Gap and lie stratigraphically below the top of the Aspen Shale. The beds in the upper part of the Aspen, in turn, pinch out within the Frontier Formation. The coal bed and equivalent carbonaceous shale represent in-place accumulation of peat. The interfingering suggests that in SW Wyoming the Lower/Upper Cretaceous boundary is within the Chalk Creek Member. -from Author","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mountain Geologist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0027254X","usgsCitation":"M'gonigle, J., 1982, Interfingering of the Frontier Formation and Aspen Shale, Cumberland Gap, Wyoming.: Mountain Geologist, v. 19, no. 2, p. 59-61.","startPage":"59","endPage":"61","numberOfPages":"3","costCenters":[],"links":[{"id":221468,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3d01e4b0c8380cd6320c","contributors":{"authors":[{"text":"M'gonigle, J.","contributorId":63165,"corporation":false,"usgs":true,"family":"M'gonigle","given":"J.","affiliations":[],"preferred":false,"id":361910,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011765,"text":"70011765 - 1982 - Late Pleistocene- Holocene transgressive sedimentation in deltaic and non-deltaic areas of the northeastern Bering epicontinental shelf.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:32","indexId":"70011765","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1794,"text":"Geologie en Mijnbouw","active":true,"publicationSubtype":{"id":10}},"title":"Late Pleistocene- Holocene transgressive sedimentation in deltaic and non-deltaic areas of the northeastern Bering epicontinental shelf.","docAbstract":"The distribution of late Pleistocene and Holocene surface sediments on the northern Bering Seafloor is patchy and dependent upon locations of seafloor bedrock and pre-late Pleistocene glacial debris, late Holocene river sediment influx, and modern strong bottom currents. Seafloor vibracores and high-resolution profiles record two different sedimentary environments in the northern Bering shelf: late Pleistocene-Holocene shoreline transgression in Chirikov Basin, and Holocene deposition from the Yukon River in Norton Sound.-from Author","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geologie en Mijnbouw","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Nelson, C., 1982, Late Pleistocene- Holocene transgressive sedimentation in deltaic and non-deltaic areas of the northeastern Bering epicontinental shelf.: Geologie en Mijnbouw, v. 61, no. 1, p. 5-18.","startPage":"5","endPage":"18","numberOfPages":"14","costCenters":[],"links":[{"id":221467,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"61","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a451ae4b0c8380cd67037","contributors":{"authors":[{"text":"Nelson, C.H.","contributorId":88346,"corporation":false,"usgs":true,"family":"Nelson","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":361909,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011764,"text":"70011764 - 1982 - Geochemical indices of fine sediment transport, northwest Gulf of Mexico","interactions":[],"lastModifiedDate":"2024-05-21T23:46:01.539707","indexId":"70011764","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2450,"text":"Journal of Sedimentary Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Geochemical indices of fine sediment transport, northwest Gulf of Mexico","docAbstract":"The 210 Pb distribution, the clay mineralogy distribution, and the distribution of three trace metals, barium, lead, and manganese, in the sediments of the south Texas shelf are related to the dynamics of the sedimentary transport process. 210 Pb, whose concentration is time dependent, defines three loci of recent sediment accumulations. In addition, the variation of 210 Pb activity at the sediment-water interface delineates areas of terrestrial sedimentation from hemipelagic sedimentation. The clay mineralogy composition of the bottom and suspended sediments assists in defining the origin of the persistent nepheloid layer and bottom sediment. Barium, a major element used in drilling mud, tags sediment movement from areas of hydrocarbon exploration. Lead concentrations, anthropogenically introduced from urban areas, tag the sediment derived from the metropolitan complexes of coastal Texas. Manganese, because of diagenic mobilization, is concentrated in areas of very slow sediment accumulation. The distribution of these geochemical properties of the sediment are in direct response to the sediment regime of the shelf. Based on this data, a model of sediment transport and deposition which relates currents, wind, tides, sediment flux, and precipitation has been formulated. This model differs from the \"advective\" transport or convergent current schemes previously proposed for this shelf.
The uplift history of the Swat Valley and Hazara region of northwestern Pakistan has been established using 22 fission-track dates on apatite, zircon and sphene. A major fault, the Main Mantle Thrust (MMT) strikes east-west across the Swat Valley, separates regions of markedly differing fission-track age regimesm, and may be a suture zone separating an extinct island arc terrane on the north from the Indian plate to the south. Fission-track ages ranging from about 55 to 58 m.y. for sphene, 18 to 53 m.y. for zircon, and 9 to 17 m.y. for apatite were obtained from the region north of the MMT. To the south the fission-track age ranges are 20 to 25 m.y. for sphene, 17 to 26 m.y. for zircon, and 16 to 23 m.y. for apatite. Disparate zircon and sphene ages on each side of the MMT imply different cooling histories for each side of the fault prior to 15 m.y. Similar apatite ages on both sides of the fault imply similar cooling histories during the past 15 m.y. This may indicate that faulting ceased by 15 m.y. Mean uplift rates have been derived from the fission-track data using mainly the mineral-pair method. Uplift rates in the region north of the MMT increased from 0.07 to 0.20 mm/yr during the period 55 to 15 m.y. South of the fault, uplift rates averaged in excess of 0.70 mm/yr for the period 25 to 15 m.y. During the past 15 m.y. uplift across the MMT in the Swat Valley showsno discontinuities, ranging from 0.16 mm/yr in the south to 0.39 mm/yr in the north. A plausible interpretation for the fission-track uplift data has the MMT verging to the south with overthrusting taking place at a depth between 3.5 and 6.0 km, juxtaposing two terranes that were originally separated by a substantial, but unknown distance. In this model, regional uplift followed cessation of faulting just prior to 15 m.y.
Topographic highs on the outer continental shelf of New Jersey are sites for the concentration of three species of attached calcareous benthic foraminifera. Elphidium subarcticum Cushman, normally considered a vagrant species, cements itself by an organic film to one or more quartz grains. Webbinella concave (Williamson) attaches to quartz grains by secreting a flange-like calcite skirt at one side of its globuline test. Vasiglobulina reticulate n. sp. has evolved the most elaborate system of attachment: numerous closely spaced spines connect the globuline test to a thin calcite lamina, which is in turn cemented to quartz grains.
\n\n
The attachment mode of these species suggests that the added weight of the quartz grains may reduce displacement during the periodic resuspension of the shelf sediments by longshore and tidal current motion. The distribution of living populations of these species corroborates sedimentological inferences that little or no modern deposition takes place on the sampled topographic highs.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1982)93<252:EIOTAA>2.0.CO;2","usgsCitation":"Poag, C.W., 1982, Environmental implications of test-to-substrate attachment among some modern sublittoral foraminifera: Geological Society of America Bulletin, v. 93, no. 3, p. 252-268, https://doi.org/10.1130/0016-7606(1982)93<252:EIOTAA>2.0.CO;2.","productDescription":"17 p.","startPage":"252","endPage":"268","numberOfPages":"17","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":221128,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Jersey","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -73.10302734375,\n 38.950865400919994\n ],\n [\n -73.10302734375,\n 39.99395569397331\n ],\n [\n -71.685791015625,\n 39.99395569397331\n ],\n [\n -71.685791015625,\n 38.950865400919994\n ],\n [\n -73.10302734375,\n 38.950865400919994\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"93","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a09d0e4b0c8380cd52095","contributors":{"authors":[{"text":"Poag, C. Wylie","contributorId":52714,"corporation":false,"usgs":true,"family":"Poag","given":"C.","email":"","middleInitial":"Wylie","affiliations":[],"preferred":false,"id":361730,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011692,"text":"70011692 - 1982 - Chemistry and isotope ratios of sulfur in basalts and volcanic gases at Kilauea volcano, Hawaii","interactions":[],"lastModifiedDate":"2024-03-18T14:18:42.458757","indexId":"70011692","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","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":"Chemistry and isotope ratios of sulfur in basalts and volcanic gases at Kilauea volcano, Hawaii","docAbstract":"Eighteen basalts and some volcanic gases from the submarine and subaerial parts of Kilauea volcano were analyzed for the concentration and isotope ratios of sulfur. By means of a newly developed technique, sulfide and sulfate sulfur in the basalts were separately but simultaneously determined. The submarine basalt has 700 ± 100 ppm total sulfur with δ34SΣs of
The volcanic sulfur gases, predominantly SO2, from the 1971 and 1974 fissures in Kilauea Crater have δ34S values of 0.8 to 0.9%., slightly heavier than the total sulfur in the submarine basalts and definitely heavier than the subaerial basalts, in accord with the above model. However, the δ34S value of sulfur gases (largely SO2) from Sulfur Bank is 8.0%., implying a secondary origin of the sulfur. The δ34S values of native sulfur deposits at various sites of Kilauea and Mauna Loa volcanos, sulfate ions of four deep wells and hydrogen sulfide from a geothermal well along the east rift zone are also reported. The high δ34S values (+5 to +6%.o) found for the hydrogen sulfide might be an indication of hot basalt seawater reaction beneath the east rift zone.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(82)90024-2","issn":"00167037","usgsCitation":"Sakai, H., Casadevall, T.J., and Moore, J., 1982, Chemistry and isotope ratios of sulfur in basalts and volcanic gases at Kilauea volcano, Hawaii: Geochimica et Cosmochimica Acta, v. 46, no. 5, p. 729-738, https://doi.org/10.1016/0016-7037(82)90024-2.","productDescription":"10 p.","startPage":"729","endPage":"738","numberOfPages":"10","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"links":[{"id":221059,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f5a4e4b0c8380cd4c32c","contributors":{"authors":[{"text":"Sakai, H.","contributorId":92800,"corporation":false,"usgs":true,"family":"Sakai","given":"H.","email":"","affiliations":[],"preferred":false,"id":361725,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Casadevall, T. J.","contributorId":96680,"corporation":false,"usgs":true,"family":"Casadevall","given":"T.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":361726,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moore, J.G.","contributorId":67496,"corporation":false,"usgs":true,"family":"Moore","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":361724,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011750,"text":"70011750 - 1982 - Laboratory measurements of reservoir rock from the Geysers geothermal field, California","interactions":[],"lastModifiedDate":"2013-01-18T13:20:42","indexId":"70011750","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2071,"text":"International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts","active":true,"publicationSubtype":{"id":10}},"title":"Laboratory measurements of reservoir rock from the Geysers geothermal field, California","docAbstract":"Rock samples taken from two outcrops, as well as rare cores from three well bores at the Geysers geothermal field, California, were tested at temperatures and pressures similar to those found in the geothermal field. Both intact and 30?? sawcut cylinders were deformed at confining pressures of 200-1000 bars, pore pressure of 30 bars and temperatures of 150?? and 240??C. Thin-section and X-ray analysis revealed that some borehole samples had undergone extensive alteration and recrystallization. Constant strain rate tests of 10-4 and 10-6 per sec gave a coefficient of friction of 0.68. Due to the highly fractured nature of the rocks taken from the production zone, intact samples were rarely 50% stronger than the frictional strength. This result suggests that the Geysers reservoir can support shear stresses only as large as its frictional shear strength. Velocity of p-waves (6.2 km/sec) was measured on one sample. Acoustic emission and sliding on a sawcut were related to changes in pore pressure. b-values computed from the acoustic emissions generated during fluid injection were typically about 0.55. An unusually high b-value (approximately 1.3) observed during sudden injection of water into the sample may have been related to thermal cracking. ?? 1982.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0148-9062(82)91632-1","issn":"01489062","usgsCitation":"Lockner, D., Summers, R., Moore, D., and Byerlee, J., 1982, Laboratory measurements of reservoir rock from the Geysers geothermal field, California: International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, v. 19, no. 2, p. 65-80, https://doi.org/10.1016/0148-9062(82)91632-1.","productDescription":"p.65-80","startPage":"65","endPage":"80","numberOfPages":"16","costCenters":[],"links":[{"id":265944,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0148-9062(82)91632-1"},{"id":221195,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4112e4b0c8380cd65289","contributors":{"authors":[{"text":"Lockner, D.A. 0000-0001-8630-6833","orcid":"https://orcid.org/0000-0001-8630-6833","contributorId":85603,"corporation":false,"usgs":true,"family":"Lockner","given":"D.A.","affiliations":[],"preferred":false,"id":361872,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Summers, R.","contributorId":65483,"corporation":false,"usgs":true,"family":"Summers","given":"R.","email":"","affiliations":[],"preferred":false,"id":361870,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moore, D.","contributorId":105307,"corporation":false,"usgs":true,"family":"Moore","given":"D.","affiliations":[],"preferred":false,"id":361873,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Byerlee, J.D.","contributorId":69982,"corporation":false,"usgs":true,"family":"Byerlee","given":"J.D.","affiliations":[],"preferred":false,"id":361871,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ]}