Search Results

• • 919 

    Academic Journals

  • Sort by: sorttype.publication.date.desc Newest sorttype.publication.date.asc Oldest sorttype.relevance Relevance

• Select Magmatic zoning of Late Cenozoic volcanism in Central Mongolia: relation with the mantle plume

  1

  Magmatic zoning of Late Cenozoic volcanism in Central Mongolia: relation with the mantle plume

  Authors:E.A. Kudryashova, V.V. Yarmolyuk, A.M. Kozlovsky, and V.M. SavatenkovFrom:Doklady Earth Sciences (Vol. 432, Issue 1) Peer-Reviewed

  May 20102,351 words Author abstract 1490LThe concentric zonal structure of the Late Cenozoic volcanism areal in Central Mongolia which is situated on the territory of the Khangai vault has been educed. The central part of the structure conforms to the axial...
• Select Thorium-uranium fractionation by garnet: evidence for a deep source and rapid rise of oceanic basalts

  2

  Thorium-uranium fractionation by garnet: evidence for a deep source and rapid rise of oceanic basalts

  Authors:T.Z. LaTourrette, A.K. Kennedy, and G.J. WasserburgFrom:Science (Vol. 261, Issue 5122) Peer-Reviewed

  Aug. 6, 19932,665 words Article Mid-ocean ridge basalts (MORBs) and ocean island basalts (OIBs) are derived by partial melting of the upper mantle and are marked by systematic excesses of thorium-230 activity relative to the activity of its parent,...
• Select Bits of lower mantle found in Brazilian diamonds

  3

  Bits of lower mantle found in Brazilian diamonds

  Author:Richard A. KerrFrom:Science (Vol. 261, Issue 5127) Peer-Reviewed

  Sept. 10, 19931,071 words Article Researchers claim that microscopic pieces of mineral from the lower mantle are apparent on some Brazilian diamonds they have collected. The composition of the 50- to 200-micrometer-sized mineral bits indicates that they...
• Select Sound velocities in olivine at earth mantle pressures

  4

  Sound velocities in olivine at earth mantle pressures

  Authors:J.M. Zaug, E.H. Abramson, J.M. Brown, and L.J. SlutskyFrom:Science (Vol. 260, Issue 5113) Peer-Reviewed

  June 4, 19931,797 words Article The independent elastic constants of an upper mantle mineral, San Carlos olivine [([Mg.sub.1.8][Fe.sub.0.2])[SiO.sub.4]], were measured from 0 to 12.5 gigapascals. Evidence is offered in support of the proposition that...
• Select Double flood basalts and plume head separation at the 660-kilometer discontinuity

  5

  Double flood basalts and plume head separation at the 660-kilometer discontinuity

  Authors:David Bercovici and John MahoneyFrom:Science (Vol. 266, Issue 5189) Peer-Reviewed

  Nov. 25, 19943,038 words Article Several of the world's flood basalt provinces display two distinct times of major eruptions separated by between 20 million and 90 million years. These double flood basalts may occur because a starting mantle plume head...
• Select Mantle fluids in the San Andreas fault system, California

  6

  Mantle fluids in the San Andreas fault system, California

  Authors:B.M. Kennedy, Y.K. Kharaka, W.C. Evans, A. Ellwood, D.J. DePaolo, J. Thordsen, et al.From:Science (Vol. 278, Issue 5341) Peer-Reviewed

  Nov. 14, 19972,729 words Article Fluids associated with the San Andreas and companion faults in central and south and central California have high [sup.3]He/[sup.4]He ratios. The lack of correlation between helium isotopes and fluid chemistry or local...
• Select Alpe Arami: a peridotite massif from depths of more then 300 kilometers

  7

  Alpe Arami: a peridotite massif from depths of more then 300 kilometers

  Authors:Larissa Dobrzhinetskaya, Harry W. Green, II, and Su WangFrom:Science (Vol. 271, Issue 5257) Peer-Reviewed

  Mar. 29, 19963,471 words Article The abundance of FeTi[O.sub.3] and chromite precipitates in olivine of the Alpe Arami peridotite massif, Switzerland, requires a much higher solubility for highly charged cations than is found in mantle xenoliths from...
• Select Key new pieces of the HIMU puzzle from olivines and diamond inclusions

  8

  Key new pieces of the HIMU puzzle from olivines and diamond inclusions

  Authors:Yaakov Weiss, Cornelia Class, Steven L. Goldstein, and Takeshi HanyuFrom:Nature (Vol. 537, Issue 7622) Peer-Reviewed

  Sept. 29, 20165,833 words Report 1680LAuthor(s): Yaakov Weiss (corresponding author) [1]; Cornelia Class (corresponding author) [1]; Steven L. Goldstein (corresponding author) [1, 2]; Takeshi Hanyu (corresponding author) [3] Mantle melting, which leads...
• Select Optimal locations of sea-level indicators in glacial isostatic adjustment investigations

  9

  Optimal locations of sea-level indicators in glacial isostatic adjustment investigations

  Authors:H. Steffen, P. Wu, and H. WangFrom:Solid Earth (Vol. 5, Issue 1) Peer-Reviewed

  June 19, 201427 words Brief article Byline: H. Steffen, P. Wu, H. Wang To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link:...
• Select Regional wave propagation using the discontinuous Galerkin method

  10

  Regional wave propagation using the discontinuous Galerkin method

  Authors:S. Wenk, C. Pelties, and H. IgelFrom:Solid Earth (Vol. 4, Issue 1) Peer-Reviewed

  Jan. 30, 201329 words Brief article Byline: S. Wenk, C. Pelties, H. Igel, M. Kä,ser To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link:...
• Select The First Find of Spinel Peridotite in the Southern Kazakhstan: Structure, Composition, and Parameters of High-Pressure Metamorphism

  11

  The First Find of Spinel Peridotite in the Southern Kazakhstan: Structure, Composition, and Parameters of High-Pressure Metamorphism

  Authors:A.V. Pilitsyna, A.A. Tretyakov, T.A. Alifirova, and E.V. KovalchukFrom:Doklady Earth Sciences (Vol. 476, Issue 1) Peer-Reviewed

  Sept. 20171,665 words Article 1310LSpinel peridotite, metamorphosed in high-pressure conditions, was first described within the Western part of the Central Asian Orogenic Belt. The spinel peridotite has the characteristics of Mg--Cr ultra-mafites...
• Select Transformation in garnet from orthorhombic perovskite to LiNbO3 phase on release of pressure

  12

  Transformation in garnet from orthorhombic perovskite to LiNbO3 phase on release of pressure

  Author:Nobumasa FunamoriFrom:Science (Vol. 275, Issue 5299) Peer-Reviewed

  Jan. 24, 19972,280 words Article High-pressure in situ x-ray diffraction and transmission electron microscopy on quenched samples show that natural garnet transforms to orthorhombic perovskite (and minor coexisting phases) containing increasing amounts...
• Select Nickel-rich metasomatism of the lithospheric mantle by pre-kimberlitic alkali-S-Cl-rich C-O-H fluids

  13

  Nickel-rich metasomatism of the lithospheric mantle by pre-kimberlitic alkali-S-Cl-rich C-O-H fluids

  Authors:Andrea Giuliani, Vadim S. Kamenetsky, Mark A. Kendrick, David Phillips, and Karsten GoemannFrom:Contributions to Mineralogy and Petrology (Vol. 165, Issue 1) Peer-Reviewed

  Jan. 20138,023 words Report 1500LAbstract Metasomatism of the lithospheric mantle sometimes produces unusual assemblages containing native metals and alloys, which provide important insight into metasomatic processes in the mantle. In this study, we...
• Select Rare gas systematics in popping rock: isotopic and elemental compositions in the upper mantle

  14

  Rare gas systematics in popping rock: isotopic and elemental compositions in the upper mantle

  Author:Manuel MoreiraFrom:Science (Vol. 279, Issue 5354) Peer-Reviewed

  Feb. 20, 19983,372 words Article New experimental data on the isotopic variations of neon, argon, and xenon in a popping rock imply that the [sup.40.Ar/sup.36.Ar] ratio of the upper mantle is less than 44,000 and that the [sup.129. Xe/sup.130. Xe] ratio...
• Select Trench-parallel anisotropy produced by serpentine deformation in the hydrated mantle wedge

  15

  Trench-parallel anisotropy produced by serpentine deformation in the hydrated mantle wedge

  Authors:Ikuo Katayama, Ken-ichi Hirauchi, Katsuyoshi Michibayashi, and Jun-ichi AndoFrom:Nature (Vol. 461, Issue 7267) Peer-Reviewed

  Oct. 22, 20093,132 words Report 1590LSeismic anisotropy is a powerful tool for detecting the geometry and style of deformation in the Earth's interior, as it primarily reflects the deformation-induced preferred orientation of anisotropic crystals (1,2)....
• Select The northeastern boundary of the Siberian Craton and its formation peculiarities (derived from occurrences of early Cambrian and Devonian intraplate magmatism)

  16

  The northeastern boundary of the Siberian Craton and its formation peculiarities (derived from occurrences of early Cambrian and Devonian intraplate magmatism)

  Authors:A.I. Kiselev, V.V. Yarmolyuk, I.I. Kolodeznikov, K.K. Struchkov, and K.N. EgorovFrom:Doklady Earth Sciences (Vol. 447, Issue 1) Peer-Reviewed

  Nov. 20122,267 words Article 1470LThe formation of the Siberian Craton ended in the Paleoproterozoic. Subsequently, it was repeatedly subjected to destruction in response to interaction between the lithosphere and the mantle plumes. The most significant...
• Select Solid-liquid iron partitioning in Earth's deep mantle

  17

  Solid-liquid iron partitioning in Earth's deep mantle

  Authors:Denis Andrault, Sylvain Petitgirard, Giacomo Lo Nigro, Jean-Luc Devidal, Giulia Veronesi, Gaston Garbarino, et al.From:Nature (Vol. 487, Issue 7407) Peer-Reviewed

  July 19, 20125,134 words Letter to the editor 1380LMelting processes in the deep mantle have important implications for the origin of the deep-derived plumes believed to feed hotspot volcanoes such as those in Hawaii (1). They also provide insight into how the mantle...
• Select Iron partitioning in earth's mantle: toward a deep lower mantle discontinuity. (Reports)

  18

  Iron partitioning in earth's mantle: toward a deep lower mantle discontinuity. (Reports)

  Authors:James Badro, Guillaume Fiquet, Francois Guyot, Jean-Pascal Rueff, Viktor V. Struzhkin, Gyorgy Vanko, et al.From:Science (Vol. 300, Issue 5620) Peer-Reviewed

  May 2, 20032,220 words Article We measured the spin state of iron in ferropericlase ([Mg.sub.0.83][Fe.sub.0.17])O at high pressure and found a high-spin to low-spin transition occurring in the 60- to 70-gigapascal pressure range, corresponding to...
• Select Enhancement of Cation Diffusion Rates Across the 410-Kilometer Discontinuity in Earth's Mantle

  19

  Enhancement of Cation Diffusion Rates Across the 410-Kilometer Discontinuity in Earth's Mantle

  Authors:S. Chakraborty, R. Knoche, H. Schulze, D.C. Rubie, D. Dobson, N.L. Ross, et al.From:Science (Vol. 283, Issue 5400) Peer-Reviewed

  Jan. 15, 19993,328 words Article Rates of cation diffusion (magnesium, iron, and nickel) have been determined in olivine and its high-pressure polymorph, wadsleyite, at 9 to 15 gigapascals and 1100[degrees] to 1400 [degrees] C for compositions that are...
• Select In-situ determination of trace elements in clinopyroxene from mantle rocks by LA-ICP-MS: comparison of different external standards

  20

  In-situ determination of trace elements in clinopyroxene from mantle rocks by LA-ICP-MS: comparison of different external standards

  Author:Y. KilFrom:Journal of Analytical Chemistry (Vol. 66, Issue 5) Peer-Reviewed

  May 20111,968 words Article 1500LTrace elements in clinopyroxenes, separated from mantle rocks in the Asan and Pyeongtaek area of Korea, were successfully determined using different standards, NIST 612 and USGS GSE, by LA-ICP-MS. Data qualities of the...