The 16 September 2015 Chile Tsunami from the Post-Tsunami Survey and Numerical Modeling Perspectives     

Rafael Aránguiz  Gabriel González  Juan González  Patricio A. Catalán  Rodrigo Cienfuegos  Yuji Yagi  Ryo Okuwaki  Luisa Urra  Karla Contreras  Ian Del Rio  Camilo Rojas 《Pure and Applied Geophysics》2016,173(2):333-348

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The Slave Ship: A Human History - by Marcus Rediker     

Kimberley  Peters 《The Geographical journal》2009,175(2):160-161

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Neotectonic evolution of the Central Betic Cordilleras (Southern Spain)   总被引：1，自引：0，他引：1  

Klaus R. Reicherter  Gwendolyn Peters   《Tectonophysics》2005,405(1-4):191-212

Paleostress orientations were calculated from fault-slip data of 36 sites located along a traverse through the Central Betic Cordilleras (southern Spain). Heterogeneous fault sets, which are frequent in the area, have been divided into homogeneous subsets by cross-cutting relationships observed in the field and by a paleostress stratigraphy approach applied on each individual fault population. The state of stress was sorted according to main tectonic events and a new chronology is presented of the Miocene to Recent deformation in the central part of the Betic Cordilleras. The deviatoric stress tensors fall into four distinct groups that are regionally consistent and correlate with three Late Oligocene–Aquitanian to Recent major tectonic events in the Betic Cordilleras. The new chronology of the neotectonic evolution includes, from oldest to youngest, the following main tectonic phases:

(1) Late Oligocene–Aquitanian to Early Tortonian: σ₁ subhorizontal N–S, partly E–W directed, σ₃ subvertical; compressional structures (thrusting of nappes, large-scale folding) and strike-slip faulting in the Alborán Domain and the External Zone of the Betic Cordilleras;

(2) Early Tortonian to Pliocene–Pleistocene: σ₁ subvertical, σ₃ subhorizontal NW–SE, partly N–S directed or E–W-directed (radial extension); large-scale normal faulting in the Central Betic Cordilleras and in the oldest Neogene formations of the Granada Basin related to the gravitational collapse of the Betic Cordilleras and the exhumation of the intensely metamorphosed rock series of the Internal Zones, at the same time formation of the Alborán Basin and intramontane basins such as the Granada Basin;

(3) Pleistocene to Recent: (3a) σ₁ subvertical, σ₃ subhorizontal NE–SW with prominent normal faulting, but coevally; (3b) σ₁ subhorizontal NW directed, σ₃ NE–SW subhorizontal with strike-slip faulting. Extensional structures and strike-slip faulting are related to the ongoing convergence of the Eurasian and African Plates and coeval uplift of the Betic Cordilleras. Reactivation of pre-existing fractures and faults was frequently observed. Phase 3 is interpreted as periodic strike-slip and normal faulting events due to a permutation of the principal stress axes, mainly σ₁ and σ₂.

Thermal expansion of gehlenite, Ca2Al[AlSiO7], and the related aluminates LnCaAl[Al2O7] with Ln = Tb, Sm     

L. Peters  K. Knorr  M. Knapp  W. Depmeier 《Physics and Chemistry of Minerals》2005,32(8-9):546-551

The thermal expansion of gehlenite, Ca₂Al[AlSiO₇], (up to T=830 K), TbCaAl[Al₂O₇] (up to T=1100 K) and SmCaAl[Al₂O₇] (up to T=1024 K) has been determined. All compounds are of the melilite structure type with space group Thermal expansion data were obtained from in situ X-ray powder diffraction experiments in-house and at HASYLAB at the Deutsches Elektronen Synchrotron (DESY) in Hamburg (Germany). The thermal expansion coefficients for gehlenite were found to be: α₁=7.2(4)×10⁻⁶×K⁻¹+3.6(7)×10⁻⁹ΔT×K⁻² and α₃=15.0(1)×10⁻⁶×K⁻¹. For TbCaAl[Al₂O₇] the respective values are: α₁=7.0(2)×10⁻⁶×K⁻¹+2.0(2)×10⁻⁹ΔT×K⁻² and α₃=8.5(2)×10⁻⁶×K⁻¹+2.0(3)×10⁻⁹ΔT×K⁻², and the thermal expansion coefficients for SmCaAl[Al₂O₇] are: α₁=6.9(2)×10⁻⁶×K⁻¹+1.7(2)×10⁻⁹ΔT×K⁻² and α₃=9.344(5)×10⁻⁶×K⁻¹. The expansion mechanisms of the three compounds are explained in terms of structural trends obtained from Rietveld refinements of the crystal structures of the compounds against the powder diffraction patterns. No structural phase transitions have been observed. While gehlenite behaves like a ‘proper’ layer structure, the aluminates show increased framework structure behavior. This is most probably explained by stronger coulombic interactions between the tetrahedral conformation and the layer-bridging cations due to the coupled substitution (Ca²⁺+Si⁴⁺)–(Ln ³⁺+Al³⁺) in the melilite-type structure. This article has been mistakenly published twice. The first and original version of it is available at .  相似文献   

A Search for Variability in the HCCN to H2CO Ratio in Comet Hale-Bopp     

Hofstadter  M. D.  Hartogh  P.  McMullin  J. P.  Martin  R. N.  Jarchow  C.  Peters  W. 《Earth, Moon, and Planets》1997,78(1-3):53-61

We observed submillimeter lines of H₂CO and HCN in comet Hale-Bopp near perihelion. One of our goals was to search for short term variability. Our observations are suggestive, but not conclusive, of temporal and/or spatial changes in the coma's HCN/H₂CO abundance ratio of ∼25%. If due to spatial variability, the ratio on the sunward side of the coma is enhanced over other regions. If due to temporal variability, we find the bulk ratio in the coma changed in less than 16 hours. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

Book reviews     

C. Frederick Peters  J. H. Lieske 《Celestial Mechanics and Dynamical Astronomy》1976,13(1):121-122

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Cosmic ray propagation in a closed galaxy     

B. Peters  N. J. Westergaard 《Astrophysics and Space Science》1977,48(1):21-46

A simple model of cosmic ray propagation is proposed from which the major experimental results can be derived: The model reproduces the observed nuclear abundances and accounts for the observed changes of nuclear composition with energy, the high degree of isotropy of cosmic ray flux at all energies, and the high degree of its constancy throughout the history of the Solar System. It is consistent with the observed size distribution of extensive airshowers, the intensity and energy distribution of the electron component, and the diffuse emission of γ-rays and radio waves. The model is characterized by the two basic assumptions: (1) that cosmic rays have been injected at an unchanging rate by sources located in the galactic spiral arms and (2) that a large-scale magnetic field retains all particles in our galaxy, where they interact with interstellar gas, so that all complex nuclei are finally fragmented and their energy dissipated in meson production and electro-magnetic interactions.  相似文献   

Der Ablauf des hygroklimatischen Jahres in Sri Lanka im Spiegel der statistischen Analyse     

Dr. W. Peters 《Theoretical and Applied Climatology》1981,29(1-2):71-80

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“[W]e do not lose our treaty rights outside the... reserve”: challenging the scales of social service provision for First Nations women in Canadian cities     

Evelyn J. Peters 《GeoJournal》2006,65(4):315-327

Recent work in political geography has emphasised how scale plays a role in constituting relationships and identities. Historically, the Canadian federal government has taken responsibilities for social services for First Nations people on reserves, leaving this responsibility to provinces for First Nations people in cities. This constitutes First Nations women as individuals with Aboriginal rights only on reserves, and as part of mainstream society in urban areas. First Nations women have challenged the definitions of their identities embedded in these scales of service provision. In presenting alternative geographies for organising the provision of services, they demonstrate the importance of paying attention to the diversity of women’s everyday geographies in the city. This is a phrase from Vicki English’s (1993) presentation to the Royal Commission on Aboriginal Peoples, where she argues that treaty rights to housing, education, medicare and other services should not be confined to the boundaries of reserves. I use the term “First Nations” to refer to people who identify themselves as such, including people who are and are not registered pursuant to the Indian Act. By “Aboriginal peoples” I mean the descendants of the indigenous people in Canada, including First Nations people, Métis and Inuit. The Census of Canada uses the term “North American Indian” to refer to First Nations people, and I employ this terminology for clarity in some cases.

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Extracting olivine (Fo–Fa) compositions from Raman spectral peak positions     

Karla E. Kuebler  Bradley L. Jolliff  Alian Wang  Larry A. Haskin 《Geochimica et cosmochimica acta》2006,70(24):6201-6222

The dominant feature of the olivine Raman spectrum is a doublet that occurs in the spectral region of 815–825 cm⁻¹ (DB1) and 838–857 cm⁻¹ (DB2). These features arise from coupled symmetric and asymmetric stretching vibrational modes of the constituent SiO₄ tetrahedra. The frequencies of both peaks show monotonic shifts following cation substitution between forsterite and fayalite. We present a calibration for extracting olivine Fo contents (Fo = Mg/(Mg + Fe) molar ratio; Fo_0–100) from the peak positions of this doublet, permitting estimates of chemical composition from Raman spectra (acquired in the laboratory or field) as well as providing information on crystal structure (distinction of polymorphs). Eight samples spanning the compositional range from forsterite to fayalite were used to develop the calibration equations for the DB1 and DB2 peaks individually and together. The data indicate that the DB1 peak is more reliable for calculating the compositions of Fe-rich olivine but that the DB2 peak is better for magnesian compositions. The two-peak calibration overcomes the limitations of the single-peak calibrations and is capable of calculating olivine compositions to within ±10 Fo units.  相似文献