標題: Titlebook: Crust/Mantle Recycling at Convergence Zones; Stanley R. Hart,Levent Gülen Book 1989 Kluwer Academic Publishers 1989 atmosphere.chemistry.g [打印本頁] 作者: 從未迷惑 時間: 2025-3-21 18:43
書目名稱Crust/Mantle Recycling at Convergence Zones影響因子(影響力)
書目名稱Crust/Mantle Recycling at Convergence Zones影響因子(影響力)學科排名
書目名稱Crust/Mantle Recycling at Convergence Zones網(wǎng)絡公開度
書目名稱Crust/Mantle Recycling at Convergence Zones網(wǎng)絡公開度學科排名
書目名稱Crust/Mantle Recycling at Convergence Zones被引頻次
書目名稱Crust/Mantle Recycling at Convergence Zones被引頻次學科排名
書目名稱Crust/Mantle Recycling at Convergence Zones年度引用
書目名稱Crust/Mantle Recycling at Convergence Zones年度引用學科排名
書目名稱Crust/Mantle Recycling at Convergence Zones讀者反饋
書目名稱Crust/Mantle Recycling at Convergence Zones讀者反饋學科排名
作者: 偽造 時間: 2025-3-22 00:07
Magma Generation in Subduction Zones,phere wedge overlying the subducted slab. Lack of knowledge of the thermal structure of island arc regions has hindered our understanding. By comparing laboratory results with seismic and heat flow observations in island arc regions we determine that temperatures are generally below the solidus.作者: Decibel 時間: 2025-3-22 04:08
Isotopic and Chemical Signatures of Recycled Oceanic and Continental Crust, evolution. Isotopic and chemical constraints show that elements like Rb, U, Th and Pb will have very short residence times (0.1–1.0 Ga) in the mantle and be close to steady state. In contrast, elements like Sr, Nd, Sm, Hf and Lu will have much longer residence times (5–10 Ga) and be far from steady state.作者: ERUPT 時間: 2025-3-22 07:01 作者: Eeg332 時間: 2025-3-22 12:10 作者: 曲解 時間: 2025-3-22 16:20
phere wedge overlying the subducted slab. Lack of knowledge of the thermal structure of island arc regions has hindered our understanding. By comparing laboratory results with seismic and heat flow observations in island arc regions we determine that temperatures are generally below the solidus.作者: 曲解 時間: 2025-3-22 21:05
evolution. Isotopic and chemical constraints show that elements like Rb, U, Th and Pb will have very short residence times (0.1–1.0 Ga) in the mantle and be close to steady state. In contrast, elements like Sr, Nd, Sm, Hf and Lu will have much longer residence times (5–10 Ga) and be far from steady state.作者: 嚴重傷害 時間: 2025-3-22 21:33 作者: Hdl348 時間: 2025-3-23 03:17 作者: ostracize 時間: 2025-3-23 08:45 作者: 混沌 時間: 2025-3-23 11:04
Ethnomethodology in/for Science Education,y of this heterogeneous character has been expanded over the intervening years with the application of new isotopic tracer systems (Nd, Hf, He, Xe) to volcanic rocks from most of the oceanic islands. Currently, this isotopic heterogeneity can be embraced as mixtures between four or five fairly disti作者: gospel 時間: 2025-3-23 14:06
Glosses and Glossing Practices,nt contribution to the flux of material between the continent and the depleted mantle (Albarede and Michard, 1986). The subducted oceanic crust is expected to comprise widely different end-members: continent-derived sediments of which the abyssal clays are an important fraction, metalliferous ridge-作者: 倔強一點 時間: 2025-3-23 20:06 作者: 高調 時間: 2025-3-23 22:13
Conclusions and Some Implications,e most part is derived from the continental crust. It also reacts with sea water and hydrothermal fluids produced from sea water, changing its composition. To the degree this sediment is subducted along with the basaltic portion of the oceanic crust, continental crust is recycled into the mantle. Th作者: 幻影 時間: 2025-3-24 03:47
Understanding Culture Brokerage,from which oceanic basalts may be produced by variable mixing relationships, assuming that oceanic basalt isotope systematics reflect mixing. The existence of two additional components, BSE and PREMA, is also compatible with the observed isotopic heterogeneities in the mantle. The combinations of en作者: archetype 時間: 2025-3-24 07:46
Conclusions and Some Implications,ratification, rheology, and buoyancy. It is proposed that young oceanic lithosphere (< 20 Ma) and oceanic ridges, when being subducted upon being overridden by cool and strong (continental) lithosphere resides subhorizontally in the shallow upper mantle underneath a cooler upper lithospheric plate. 作者: floodgate 時間: 2025-3-24 13:12
Conclusions and Some Implications, and in time they will be assimilated through heating. This represents the large scale crust/mantle recycling process. There are other processes that contribute to recycling at smaller scales. Island arc volcanism and back-arc spreading at convergent plate boundaries are some of the examples. Dynami作者: 紳士 時間: 2025-3-24 18:44 作者: VERT 時間: 2025-3-24 21:07 作者: 詩集 時間: 2025-3-24 23:18 作者: 易于交談 時間: 2025-3-25 06:31
those of island arc volcanics. The generation of these depletions is not related to the subduction process. These anhydrous peridotites, which reside at high levels in the mantle, cannot generate, nor be in equilibrium with, mid-ocean ridge or ocean island basalts, and have a complex geochemical his作者: 咯咯笑 時間: 2025-3-25 08:23
rial materials, and the fact also that volatiles, which can be both outgassed from the mantle and recycled, are traced by three more stable isotope ratios, namely those of carbon, nitrogen and hydrogen. In addition to stable isotope ratios, some chemical ratios in the volatiles can be used to link t作者: 向外 時間: 2025-3-25 13:15 作者: limber 時間: 2025-3-25 17:21 作者: FLOUR 時間: 2025-3-25 22:54 作者: 想象 時間: 2025-3-26 00:19
h as a whole system including physical and chemical properties of the components involved. Unfortunately, plate tectonics has so far failed to provide us with such a dynamic picture. Plate tectonics may be described as a kinematical description of the thin spherical outer shell of the earth. Even th作者: 討好女人 時間: 2025-3-26 04:45
evolution. Isotopic and chemical constraints show that elements like Rb, U, Th and Pb will have very short residence times (0.1–1.0 Ga) in the mantle and be close to steady state. In contrast, elements like Sr, Nd, Sm, Hf and Lu will have much longer residence times (5–10 Ga) and be far from steady作者: Anthropoid 時間: 2025-3-26 10:19
n significant amounts is unkown. These heterogeneities will — at least in parts — be torn into progessively longer and thinner streaks (or schlieren, tendrils, bands, lamellae), giving rise to a “marble cake mantle” (Allègre and Turcotte, 1986). The question of how fast the thickness reduction proce作者: ANNUL 時間: 2025-3-26 16:22
https://doi.org/10.1007/978-94-009-0895-6atmosphere; chemistry; geochemistry; geology; geophysics; mineral; petrology; plate tectonics; structural ge作者: Ascribe 時間: 2025-3-26 20:01 作者: 高腳酒杯 時間: 2025-3-26 22:52
e asthenosphere cannot explain observed H.O and K.O to asthenosphere and more complicated histories of melt generation; the melts generated at 100–140 km beneath arcs bear little chemical relation to arc basalts. Volatiles thus must pass numerous “filters” before they emerge in arc volcanics.作者: 報復 時間: 2025-3-27 04:24 作者: 五行打油詩 時間: 2025-3-27 08:28 作者: 爆炸 時間: 2025-3-27 09:31
Tomographic Mapping of the Upper Mantle Structure Beneath the Alpine Collision Belt, for estimates of seismic wave velocity anomalies, earthquake relocation parameters and near station velocity anomalies. In principle the employed tomographic method is based on a division of the Upper Mantle area in a large number of cells and a linearization of the travel time integral with respect to a reference velocity model.作者: cauda-equina 時間: 2025-3-27 16:20 作者: STELL 時間: 2025-3-27 18:17
Understanding Culture Brokerage,d-member components for generating individual compositions by mixing are nearly endless. Much more work, especially with a more quantitative approach, will be necessary before we fully understand the geochemical characteristics of the mantle.作者: 古老 時間: 2025-3-28 01:34
Conclusions and Some Implications,This situation, termed “l(fā)ithospheric doubling”, gives rise to upper mantle thermal anomalies. The thermally anomalous layering leads to a number of geophysical, geological, and petrological consequences.作者: overweight 時間: 2025-3-28 05:17 作者: 真 時間: 2025-3-28 09:01 作者: 減弱不好 時間: 2025-3-28 13:07 作者: inclusive 時間: 2025-3-28 15:25
1389-2185 ce Zones," held in Antalya, Turkey, between May 25 to 29, 1987. The workshop was attended by 36 earth scientists from ten countries and 28 papers were presented. Crust/mantle recycling is one of the most fundamental processes in the Earth. The study and understanding of this process requires the con作者: 無價值 時間: 2025-3-28 20:42
at high levels in the mantle, cannot generate, nor be in equilibrium with, mid-ocean ridge or ocean island basalts, and have a complex geochemical history involving partial melting, melt extraction and metasomatism.作者: 致詞 時間: 2025-3-29 02:16 作者: 倔強不能 時間: 2025-3-29 06:23 作者: 直覺好 時間: 2025-3-29 10:55
Book 1989 held in Antalya, Turkey, between May 25 to 29, 1987. The workshop was attended by 36 earth scientists from ten countries and 28 papers were presented. Crust/mantle recycling is one of the most fundamental processes in the Earth. The study and understanding of this process requires the consideration作者: Landlocked 時間: 2025-3-29 13:28 作者: LEER 時間: 2025-3-29 18:21 作者: PAGAN 時間: 2025-3-29 20:59
Sediment Recycling at Convergent Margins: Constraints from the Cosmogenic Isotope 10Be,ts contained within grabens are presumed to be subducted, then the global sediment subduction rate is 2–5 × 10. km./Ma; model calculations suggest that 11–14% of the subducted sediment is recycled in volcanic arcs and that the remainder is available for subduction deep into the earth.作者: 聾子 時間: 2025-3-30 02:20 作者: 品牌 時間: 2025-3-30 05:10
Volatiles and Stable Isotopes in Recycling,heir fluxes if they are not too much affected by the processes of dissolution and outgassing. We shall review in the next pages, first some of the isotope aspects, then some chemical characteristics of the fluids involved in outgassing of the mantle, and of those possibly recycled.作者: 尖叫 時間: 2025-3-30 10:19 作者: collagenase 時間: 2025-3-30 16:06
Geochemical Evidence for Crust-To-Mantle Recycling in Subduction Zones, Chase, 1981; Hofmann and White, 1982; White and Hofmann, 1982; DePaolo, 1983; Dupre and Allegre, 1983; Weaver, et al., 1986), but it is by no means clear that this process is in fact responsible for all that it is called upon to account for.作者: 粗語 時間: 2025-3-30 19:34
Isotopic Characterization and Identification of Recycled Components,y of this heterogeneous character has been expanded over the intervening years with the application of new isotopic tracer systems (Nd, Hf, He, Xe) to volcanic rocks from most of the oceanic islands. Currently, this isotopic heterogeneity can be embraced as mixtures between four or five fairly disti作者: antipsychotic 時間: 2025-3-30 22:24
Hydrothermal Alteration of the Oceanic Crust,nt contribution to the flux of material between the continent and the depleted mantle (Albarede and Michard, 1986). The subducted oceanic crust is expected to comprise widely different end-members: continent-derived sediments of which the abyssal clays are an important fraction, metalliferous ridge-作者: 哭得清醒了 時間: 2025-3-31 04:34 作者: Lipoprotein 時間: 2025-3-31 05:05
Geochemical Evidence for Crust-To-Mantle Recycling in Subduction Zones,e most part is derived from the continental crust. It also reacts with sea water and hydrothermal fluids produced from sea water, changing its composition. To the degree this sediment is subducted along with the basaltic portion of the oceanic crust, continental crust is recycled into the mantle. Th作者: 西瓜 時間: 2025-3-31 09:44
Kerguelen Archipelago: Geochemical Evidence for Recycled Material,from which oceanic basalts may be produced by variable mixing relationships, assuming that oceanic basalt isotope systematics reflect mixing. The existence of two additional components, BSE and PREMA, is also compatible with the observed isotopic heterogeneities in the mantle. The combinations of en作者: 異教徒 時間: 2025-3-31 13:27
Subduction of Young Lithosphere: Lithospheric Doubling, A Possible Scenario,ratification, rheology, and buoyancy. It is proposed that young oceanic lithosphere (< 20 Ma) and oceanic ridges, when being subducted upon being overridden by cool and strong (continental) lithosphere resides subhorizontally in the shallow upper mantle underneath a cooler upper lithospheric plate. 作者: Original 時間: 2025-3-31 18:33 作者: Influx 時間: 2025-3-31 22:11
Sediment Recycling at Convergent Margins: Constraints from the Cosmogenic Isotope 10Be,mogenic isotope .Be (T. = 1.5 million years) suggests that sediments are indeed recycled at some volcanic arcs. Further, the .Be data suggest that sediment subduction may be enhanced where topographic steps in the oceanic plate (fracture zones, seamount chains, grabens) are subducted. If all sedimen作者: Synovial-Fluid 時間: 2025-4-1 05:50
