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Conference paperCiesla FJ, Collins GS, Davison TM, et al., 2009,
Collisions among porous planetesimals and the water content of planetary embryos
, 19th Annual VM Goldschmidt Conference, Publisher: Elsevier, Pages: A227-A227, ISSN: 0016-7037 -
Journal articleAguera F, Liu JG, 2009, , COMPUTERS AND ELECTRONICS IN AGRICULTURE, Vol: 66, Pages: 191-200, ISSN: 0168-1699
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- Citations: 58
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Journal articleAmidon WH, Rood DH, Farley KA, 2009, , Earth and Planetary Science Letters, Vol: 280, Pages: 194-204, ISSN: 0012-821X
This study calibrates the production rate of cosmogenic <sup>3</sup>He in pyroxene, olivine, garnet, zircon and apatite as well as <sup>21</sup>Ne in quartz and pyroxene against the known production rate of <sup>10</sup>Be in quartz. The Devil's Kitchen rhyolite from the Coso volcanic field in southeastern California (elev. ~ 1300 m) was chosen for this study due to its young age (~ 610 ka) and diverse mineral assemblage. Based on <sup>10</sup>Be, our two rhyolite samples have apparent exposure ages of ~ 49 and 93 ka, indicating substantial erosion after eruption. Combining data from the two samples, we estimate sea level high latitude <sup>3</sup>He spallation production rates of 145 ± 11, 141 ± 16, and 144 ± 30 at g<sup>- 1</sup> a<sup>- 1</sup> (2σ) for pyroxene, olivine and spessartine garnet respectively. For zircon and apatite, we estimate apparent <sup>3</sup>He spallation production rates of 114 ± 8 and 149 ± 28 at g<sup>- 1</sup> a<sup>- 1</sup> (2σ) respectively. The rates for zircon and apatite are reported as apparent production rates because we do not explicitly address the redistribution of spallation produced <sup>3</sup>He from adjacent minerals. These estimates quantitatively account for production of <sup>3</sup>He from both cosmogenic and radiogenic neutron reactions on <sup>6</sup>Li within the analyzed phases and also implanted from nuclear reactions in neighboring minerals; the high U, Th and Li content of this rhyolite provides a particularly rigorous test of this correction. We estimate <sup>21</sup>Ne production rates of 17.7 ± 1.6 and 34.1 ± 3.2 at g<sup>- 1</sup> a<sup>- 1</sup> (2σ) in quartz and pyroxene (Fe/Mg = 0.7 by mass) respectively. Although high
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Journal articleCapitanio FA, Morra G, Goes S, 2009, , GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, Vol: 10, ISSN: 1525-2027
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- Citations: 110
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Journal articleJackson CA-L, Larsen E, 2009, , Journal of Structural Geology, Vol: 31, Pages: 388-402
Three-dimensional seismic and well data from the South Viking Graben, northern North Sea Basin, is used to investigate the temporal and spatial development of a gravity-driven normal fault array above an evaporite-rich detachment. Two moderate throw (500–900 m), Middle to Upper Jurassic normal faults (the Gudrun and Brynhild Faults) are developed within the study area. Both faults die-out laterally and tip-out upwards at different structural levels within the syn-rift succession. Both faults terminate downwards into Late Permian evaporites (Zechstein Group) and do not offset pre-evaporite basement units. This thin-skinned fault array developed in response to westwards tilting of the hangingwall of the South Viking Graben during Late Jurassic rifting, and consequent westward gliding and extensional break-up of units above the mechanically-weak evaporite horizon. Isochron mapping and well-based correlation of Middle to Upper Jurassic syn-rift units allow constraints to be placed on the temporal evolution of the fault array. Several stages of structural development are observed which document; (i) a period of relatively minor, early (i.e. pre-rift) halokinesis; (ii) variable spatial activity on individual faults within the array; and (iii) the progressive upslope migration of active faulting within the array as a whole. The progressive upslope migration of fault activity is interpreted to reflect progressive “unbuttressing” and extensional faulting of upslope, post-evaporite units. The overall structural style and kinematic evolution identified here shares many characteristics with both ‘rift–raft tectonics’ documented in other rifts developed above an evaporitic sub-stratum and ‘raft tectonics’ described from passive margin basins containing thick mobile salt or shale intervals. This style of fault array evolution differs from that observed in rifts lacking mobile layers at-depth and highlights the importance of these un
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Journal articleFang F, Pain CC, Navon IM, et al., 2009, , INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, Vol: 59, Pages: 827-851
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Journal articleBoulton SJ, Whittaker AC, 2009, , GEOMORPHOLOGY, Vol: 104, Pages: 299-316, ISSN: 0169-555X
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- Citations: 74
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Journal articleSlingo J, Bates K, Nikiforakis N, et al., 2009, , PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol: 367, Pages: 815-831, ISSN: 1364-503X
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- Citations: 51
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Journal articleHam DA, Farrell PE, Gorman GJ, et al., 2009, , Geoscientific Model Development, Vol: 2, Pages: 33-42
The interfaces by which users specify the scenarios to be simulated by scientific computer models are frequently primitive, under-documented and ad-hoc text files which make using the model in question difficult and error-prone and significantly increase the development cost of the model. In this paper, we present a model-independent system, Spud, which formalises the specification of model input formats in terms of formal grammars. This is combined with an automated graphical user interface which guides users to create valid model inputs based on the grammar provided, and a generic options reading module, libspud, which minimises the development cost of adding model options. Together, this provides a user friendly, well documented, self validating user interface which is applicable to a wide range of scientific models and which minimises the developer input required to maintain and extend the model interface.
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Journal articleLatham JP, Mindel J, Xiang J, et al., 2009, , Geomechanics and Geoengineering, Vol: 4, Pages: 39-53, ISSN: 1748-6033
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Conference paperJardine RJ, 2009, , Pages: 3771-3773
TC-29 has been active since the Osaka Conference. This report describes its Terms of Reference, work and achievements. © 2011 IOS Press.
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Journal articleNishimura S, Martin CJ, Jardine RJ, et al., 2009, , GEOTECHNIQUE, Vol: 59, Pages: 213-227, ISSN: 0016-8505
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- Citations: 16
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Conference paperBarker DH, Sutherland R, Henrys SA, et al., 2009,
TI: Along-strike Transitions in Subduction Characteristics, Hikurangi Margin, New Zealand
, AGU Fall Meeting -
Conference paperStafford PJ, 2009,
Towards vector implementations of hazard analysis and loss estimation
, Earthquake Engineering by the Beach, Publisher: RELIUS -
Journal articleJaafar MZ, Vinogradov J, Jackson MD, 2009, , Geophysical Research Letters
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Book chapterMarano GC, Sgobba S, Stafford PJ, et al., 2009,
Seismologically consistent stochastic spectra
, New Trends in Seismic Design of Structures, Editors: Lagaros, Tsompanakis, Papadrakakis, Publisher: Saxe-Cobourg -
Conference paperGorman GJ, Pain CC, Piggott MD, et al., 2009,
Interleaved parallel tetrahedral mesh optimisation and dynamic load-balancing
, Brussels, Belgium, the fourth International Conference on Adaptive Modeling and Simulation -
Journal articleWallace LM, Reyners M, Cochran U, et al., 2009, , Geochemistry, Geophysics, Geosystems, Vol: 10
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Journal articleBell RE, McNeill LC, Bull JM, et al., 2009, , Basin Research, Vol: 21, Pages: 824-855
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Conference paperBell RE, 2009,
Hikurangi margin tsunami earthquake generated by slip over a subducted seamount
, Geosciences '09
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