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1840

Jamie Woodward.

in The Ice Age

January 2014; p ublished online January 2014 .

Chapter. Subjects: Earth Sciences and Geography. 3425 words.

‘1840’ describes the remarkable year when Louis Agassiz came to England to publicise his glacial theory. With new converts, William Buckland and Charles Lyell, Agassiz presented papers on...

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A “Natural History of Data”: The Rise of Taxic Paleobiology

David Sepkoski.

in Rereading the Fossil Record

April 2012; p ublished online February 2013 .

Chapter. Subjects: Palaeontology. 17667 words.

This chapter explores the taxic approach as a dominant perspective in paleobiology, and its contribution to the solidification of what came to be known as the Chicago School of analytical...

Go to University of Chicago Press »  abstract

A ‘Richter scale’ for impacts

S Hennessey, A Kelly and M G Edmunds.

in Astronomy & Geophysics

February 1997; p ublished online February 1997 .

Journal Article. Subjects: Astronomy and Astrophysics; Geophysics. 0 words.

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A ‘Three-Increase Model’ for the Origin of the Marginal Reversal of the Koitelainen Layered Intrusion, Finland

Rais Latypov, Eero Hanski, Andrey Lavrenchuk, Hannu Huhma and Tuomas Havela.

in Journal of Petrology

April 2011; p ublished online February 2011 .

Journal Article. Subjects: Petrology. 12839 words.

To gain insights into the long-standing problem of marginal reversals, we have studied in detail the ∼200 m thick marginal zone of the ∼3 km thick, mafic Koitelainen Layered Intrusion...

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A 17th century laundry list

Peter D Hingley.

in Astronomy & Geophysics

February 1998; p ublished online February 1998 .

Journal Article. Subjects: Astronomy and Astrophysics; Geophysics. 0 words.

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A 1-D modelling of streaming potential dependence on water content during drainage experiment in sand

V. Allègre, F. Lehmann, P. Ackerer, L. Jouniaux and P. Sailhac.

in Geophysical Journal International

April 2012; p ublished online April 2012 .

Journal Article. Subjects: Geophysics. 7605 words.

Summary

The understanding of electrokinetics for unsaturated conditions is crucial for numerous of geophysical data interpretation. Nevertheless, the...

A 2.5 ka History of Dacitic Magmatism at Nevado de Toluca, Mexico: Petrological, 40Ar/39Ar Dating, and Experimental Constraints on Petrogenesis

J. L. ARCE, J. L. MACIAS, J. E. GARDNER and P. W. LAYER.

in Journal of Petrology

March 2006; p ublished online November 2005 .

Journal Article. Subjects: Petrology. 9863 words.

After 11·5 ka of quiescence (24·5–13 ka), the Nevado de Toluca volcano started a 2500 year period of activity. This period was characterized by a dome destruction event at 13 ka, a small...

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A 2.5-D time-domain elastodynamic equation for a general anisotropic medium

Hiroshi Takenaka and Brian L. N. Kennett.

in Geophysical Journal International

November 1996; p ublished online November 1996 .

Journal Article. Subjects: Geophysics. 0 words.

Summary

In order to provide a quantitative analysis of real seismic records from complex regions we need to be able to calculate the wavefields in three...

A 2.5-D time-domain elastodynamic equation for plane-wave incidence

Hiroshi Takenaka and Brian L.N. Kennett.

in Geophysical Journal International

May 1996; p ublished online May 1996 .

Journal Article. Subjects: Geophysics. 0 words.

Summary

Full 3-D modelling of seismic wave propagation is still computationally intensive. Recently, as a compromise between realism and computational...

A 2-D enlarged cell technique (ECT) for elastic wave modelling on a curved free surface

Songlin Wei, Mingwei Zhuang, Jianyang Zhou and Qing Huo Liu.

in Geophysical Journal International

P ublished online March 2015 .

Journal Article. Subjects: Volcanology and Seismology. 5701 words.

The conventional finite-difference time-domain (FDTD) method for elastic waves suffers from the staircasing error when applied to model a curved free surface because of the structured grid....

A 2-D hybrid technique to model the effect of topography on coseismic displacements. Application to the Umbria-Marche (central Italy) 1997 earthquake sequence

Stefano Tinti and Alberto Armigliato.

in Geophysical Journal International

August 2002; p ublished online August 2002 .

Journal Article. Subjects: Geophysics. 7499 words.

Summary

We face the problem of modelling the influence of the irregular topography of the Earth's crust on coseismic displacements. The modelling technique...

A 2-D spectral-element method for computing spherical-earth seismograms—II. Waves in solid–fluid media

Tarje Nissen-Meyer, Alexandre Fournier and F. A. Dahlen.

in Geophysical Journal International

September 2008; p ublished online September 2008 .

Journal Article. Subjects: Geophysics. 9643 words.

Summary

We portray a dedicated spectral-element method to solve the elastodynamic wave equation upon spherically symmetric earth models at the expense of a...

A 2-D velocity model of the Vrancea region in Romania: prediction of teleseismic waveforms

J. Perrot, A. Deschamps, V. Farra and J. Virieux.

in Geophysical Journal International

May 1996; p ublished online May 1996 .

Journal Article. Subjects: Geophysics. 0 words.

Summary

In previous studies, anomalies in arrival time and amplitudes of depth phases pP and sP recorded at teleseismic distances and produced by large...

A 3-D conductivity model of the Australian continent using observatory and magnetometer array data

Liejun Wang, Adrian P. Hitchman, Yasuo Ogawa, Weerachai Siripunvaraporn, Masahiro Ichiki and Kiyoshi Fuji-ta.

in Geophysical Journal International

P ublished online June 2014 .

Journal Article. Subjects: Geology and the Lithosphere. 8477 words.

An exploratory 3-D model of the electrical conductivity structure of the Australian continent is presented. The model is derived from the inversion of vertical magnetic-field transfer...

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A 3-D density model of Greece constrained by gravity and seismic data

Jannis Makris, Joanna Papoulia and Tamara Yegorova.

in Geophysical Journal International

July 2013; p ublished online April 2013 .

Journal Article. Subjects: Geophysics. 7391 words.

A 3-D density model of Greece was developed by gravity modelling constrained by 2-D seismic profiles. Densities were defined from seismic velocities using the Nafe & Drake and Birch...

A 3-D enlarged cell technique (ECT) for elastic wave modelling of a curved free surface

Songlin Wei, Jianyang Zhou, Mingwei Zhuang and Qing Huo Liu.

in Geophysical Journal International

P ublished online July 2016 .

Journal Article. Subjects: Volcanology and Seismology. 7215 words.

The conventional finite-difference time-domain (FDTD) method for elastic waves suffers from the staircasing error when applied to model a curved free surface because of its structured grid....

A 3-D finite-element algorithm for DC resistivity modelling using the shifted incomplete Cholesky conjugate gradient method

Xiaoping Wu.

in Geophysical Journal International

September 2003; p ublished online September 2003 .

Journal Article. Subjects: Geophysics. 5366 words.

Summary

An accurate and efficient 3-D finite-element (FE) forward algorithm for DC resistivity modelling is developed. First, the total potential is...

A 3-D gravity model for a volcanic crater in Terceira Island (Azores)

F. G. Montesinos, A. G. Camacho, J. C. Nunes, C. S. Oliveira and R. Vieira.

in Geophysical Journal International

August 2003; p ublished online August 2003 .

Journal Article. Subjects: Geophysics. 10164 words.

Summary

The seismic response of the São Sebastião volcanic crater, located at the SE end of Terceira Island (Azores), is characterized by an amplification of...

A 3-D hybrid finite-difference—finite-element viscoelastic modelling of seismic wave motion

Martin Galis, Peter Moczo and J. Kristek.

in Geophysical Journal International

October 2008; p ublished online October 2008 .

Journal Article. Subjects: Geophysics. 11348 words.

Summary

We have developed a new hybrid numerical method for 3-D viscoelastic modelling of seismic wave propagation and earthquake motion in heterogeneous...

A 3-D morphometric analysis of erosional features in a contourite drift from offshore SE Brazil

Tiago M. Alves.

in Geophysical Journal International

December 2010; p ublished online December 2010 .

Journal Article. Subjects: Geophysics. 7291 words.

Summary

A contourite drift from offshore Brazil is mapped in detail and investigated using state-of-the-art 3-D seismic data. The aim was to review the...