880 research outputs found
Large renal aneurysm successfully treated by percutaneous embolization using detachable steel coils
The definitive version is available at www.blackwell-synergy.com.ArticleInternational Journal of Urology. 13(7): 993-994 (2006)journal articl
Prostate-specific antigen, Gleason sum and clinical T stage for predicting the need for radionuclide bone scan for prostate cancer patients in Japan
The definitive version is available at www.blackwell-synergy.com.ArticleINTERNATIONAL JOURNAL OF UROLOGY. 12(8): 728-732 (2005)journal articl
Improvement of polyuria, bladder sensation and bladder capacity following renal transplantation
The definitive version is available at www.blackwell-synergy.com.ArticleInternational Journal of Urology. 13(5): 616-618 (2006)journal articl
Effects of goshajinkigan (Niu-Che-Sen-Qi-Wan) for resiniferatoxin-sensitive afferents on detrusor overactivity induced by acetic acid in conscious rats
Electronic version of an article published as [AMERICAN JOURNAL OF CHINESE MEDICINE, 34, 2, 2006, 285-293] [doi:10.1142/S0192415X06003837] Ā© [copyright World Scientific Publishing Company] [http://www.worldscinet.com/ajcm/ajcm.shtml]ArticleAmerican Journal of Chinese Medicine. 34(2): 285-293 (2006)journal articl
Alveolar soft-part sarcoma of the retroperitoneum
The definitive version is available at www.blackwell-synergy.com.ArticleInternational Journal of Urology. 13(10): 1355-1357 (2006)journal articl
SeleĆ§Ć£o de tutores vivos para uso em sistema de cultivo semi-intensivo de pimenteiras-do-reino.
The arc arises: The links between volcanic output, arc evolution and melt composition
Subduction initiation is a key process for global plate tectonics. Individual lithologies developed during subduction initiation and arc inception have been identified in the trench wall of the IzuāBonināMariana (IBM) island arc but a continuous record of this process has not previously been described. Here, we present results from International Ocean Discovery Program Expedition 351 that drilled a single site west of the KyushuāPalau Ridge (KPR), a chain of extinct stratovolcanoes that represents the proto-IBM island arc, active for ā¼25 Ma following subduction initiation. Site U1438 recovered 150 m of oceanic igneous basement and ā¼1450 m of overlying sediments. The lower 1300 m of these sediments comprise volcaniclastic gravity-flow deposits shed from the evolving KPR arc front. We separated fresh magmatic minerals from Site U1438 sediments, and analyzed 304 glass (formerly melt) inclusions, hosted by clinopyroxene and plagioclase. Compositions of glass inclusions preserve a temporal magmatic record of the juvenile island arc, complementary to the predominant mid-Miocene to recent activity determined from tephra layers recovered by drilling in the IBM forearc. The glass inclusions record the progressive transition of melt compositions dominated by an early ācalc-alkalicā, high-Mg andesitic stage to a younger tholeiitic stage over a time period of 11 Ma. High-precision trace element analytical data record a simultaneously increasing influence of a deep subduction component (e.g., increase in Th vs. Nb, light rare earth element enrichment) and a more fertile mantle source (reflected in increased high field strength element abundances). This compositional change is accompanied by increased deposition rates of volcaniclastic sediments reflecting magmatic output and maturity of the arc. We conclude the ācalc-alkalicā stage of arc evolution may endure as long as mantle wedge sources are not mostly advected away from the zones of arc magma generation, or the rate of wedge replenishment by corner flow does not overwhelm the rate of magma extraction
Implications of eocene-age philippine sea and forearc basalts for initiation and early history of the izu-bonin-mariana arc
Whole-rock isotope ratio (Hf, Nd, Pb, Sr) and trace element data for basement rocks at ocean drilling Sites U1438, 1201 and 447 immediately west of the KPR (Kyushu-Palau Ridge) are compared to those of FAB (forearc basalts) previously interpreted to be the initial products of IBM subduction volcanism. West-of-KPR basement basalts (drill sites U1438, 1201, 447) and FAB occupy the same Hf-Nd and Pb-Pb isotopic space and share distinctive source characteristics with ĪµHf mostly >16.5 and up to ĪµHf =19.8, which is more radiogenic than most Indian mid-ocean ridge basalts (MORB). Lead isotopic ratios are depleted, with Ā²ā°ā¶Pb/Ā²ā°ā“Pb = 17.8-18.8 accompanying relatively high Ā²ā°āøPb/Ā²ā°ā“Pb, indicating an Indian-MORB source unlike that of West Philippine Basin plume basalts. Some Sr isotopes show affects of seawater alteration, but samples with āøā·Sr/āøā¶Sr8.0 appear to preserve magmatic compositions and also indicate a common source for west-of-KPR basement and FAB. Trace element ratios resistant to seawater alteration (La/Yb, Lu/Hf, Zr/Nb, Sm/Nd) in west-of-KPR basement are generally more depleted than normal MORB and so also appear similar to FAB. At Site U1438, only andesite sills intruding sedimentary rocks overlying the basement have subduction-influenced geochemical characteristics (ĪµNd ā¼6.6, ĪµHf ā¼13.8, La/Yb > 2.5, Nd/Hf ā¼9). The key characteristic that unites drill site basement rocks west of KPR and FAB is the nature of their source, which is more depleted in lithophile trace elements than average MORB but with Hf, Nd, and Pb isotope ratios that are common in MORB. The lithophile element-depleted nature of FAB has been linked to initiation of IBM subduction in the Eocene, but Sm-Nd model ages and errorchron relationships in Site U1438 basement indicate that the depleted character of the rocks is a regional characteristic that was produced well prior to the time of subduction initiation and persists today in the source of modern IBM arc volcanic rocks with Sm/Nd>0.34 and ĪµNd ā¼9.0
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