Hamish Hirschberg
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View article: Dynamical Modeling of Fault Slip Rates at the New Zealand Plate Boundary Indicates Fault Weakness
Dynamical Modeling of Fault Slip Rates at the New Zealand Plate Boundary Indicates Fault Weakness Open
We construct a thin‐sheet dynamical model of the New Zealand plate boundary that includes faults. Our model fits fault slip rates, style of distributed deformation, and is constrained by relative plate boundary motion. We assume a pseudo‐p…
View article: Plate Boundary Kinematics and Dynamics in New Zealand
Plate Boundary Kinematics and Dynamics in New Zealand Open
I investigate deformation, forces, and material properties of the New Zealand plate boundary zone through a series of kinematic and dynamical models. I use an iterative method based on physical and statistical principles applied to thin-sh…
View article: Estimating Plate Tectonic Forces at the New Zealand Plate Boundary Using Strain Rates Derived From a Kinematic Model of Fault Slip
Estimating Plate Tectonic Forces at the New Zealand Plate Boundary Using Strain Rates Derived From a Kinematic Model of Fault Slip Open
We construct a model of forces at the New Zealand plate boundary from dynamical thin‐sheet modeling. Stress magnitudes estimated are 10–50 MPa and effective viscosities are 0.5–5 × 10 21 Pa s within actively deforming regions. Models that …
View article: A Kinematic Model of Quaternary Fault Slip Rates and Distributed Deformation at the New Zealand Plate Boundary
A Kinematic Model of Quaternary Fault Slip Rates and Distributed Deformation at the New Zealand Plate Boundary Open
We construct a kinematic model of Quaternary long‐term deformation at the New Zealand plate boundary, including slip rates on major faults and strain rates between faults. We use an iterative method based on statistical and physical princi…
View article: New Zealand Community Fault Model v1.0
New Zealand Community Fault Model v1.0 Open
There has been a long-identified need in New Zealand for a community-developed, threedimensional (3D) model of active faults that is publicly accessible and available to all practitioners. Over the past year, work has progressed on buildin…
View article: Extension and stress during continental breakup: Seismic anisotropy of the crust in Northern Afar
Extension and stress during continental breakup: Seismic anisotropy of the crust in Northern Afar Open
Studies that attempt to simulate continental rifting and subsequent breakup require detailed knowledge of crustal stresses, however observational constraints from continental rifts are lacking. In addition, a knowledge of the stress field …
View article: Calculation of the Deviatoric Stress Field in New Zealand
Calculation of the Deviatoric Stress Field in New Zealand Open
I model the vertically averaged deviatoric stress field for New Zealand using velocity and crustal density data. I use a thin sheet model of a viscously deforming lithosphere, averaging over a depth of 100 km and solve the stress balance e…
View article: Calculation of the Deviatoric Stress Field in New Zealand
Calculation of the Deviatoric Stress Field in New Zealand Open
I model the vertically averaged deviatoric stress field for New Zealand using velocity and crustal density data. I use a thin sheet model of a viscously deforming lithosphere, averaging over a depth of 100 km and solve the stress balance e…