Search Results - "Wagner, Lara S"

Tectonic Evolution of the Central Andean Plateau and Implications for the Growth of Plateaus by Garzione, Carmala N, McQuarrie, Nadine, Perez, Nicholas D, Ehlers, Todd A, Beck, Susan L, Kar, Nandini, Eichelberger, Nathan, Chapman, Alan D, Ward, Kevin M, Ducea, Mihai N, Lease, Richard O, Poulsen, Christopher J, Wagner, Lara S, Saylor, Joel E, Zandt, George, Horton, Brian K

“…Current end-member models for the geodynamic evolution of orogenic plateaus predict ( a ) slow and steady rise during crustal shortening and ablative…”
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Implications of Flat‐Slab Subduction on Hydration, Slab Seismicity, and Arc Volcanism in the Pampean Region of Chile and Argentina by Liu, Xiaowen, Wagner, Lara S., Currie, Claire A., Caddick, Mark J.

“…The Pampean flat slab in central Chile and Argentina is characterized by the inland migration and subsequent cessation of arc volcanism since the mid‐Miocene…”
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Seismicity and state of stress in the central and southern Peruvian flat slab by Kumar, Abhash, Wagner, Lara S., Beck, Susan L., Long, Maureen D., Zandt, George, Young, Bissett, Tavera, Hernando, Minaya, Estella

“…We have determined the Wadati–Benioff Zone seismicity and state of stress of the subducting Nazca slab beneath central and southern Peru using data from three…”
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Foreland uplift during flat subduction: Insights from the Peruvian Andes and Fitzcarrald Arch by Bishop, Brandon T., Beck, Susan L., Zandt, George, Wagner, Lara S., Long, Maureen D., Tavera, Hernando

“…Foreland deformation has long been associated with flat-slab subduction, but the precise mechanism linking these two processes remains unclear. One example of…”
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Internal deformation of the subducted Nazca slab inferred from seismic anisotropy by Eakin, Caroline M., Long, Maureen D., Scire, Alissa, Beck, Susan L., Wagner, Lara S., Zandt, George, Tavera, Hernando

“…Subducting oceanic plates are often considered as cold, rigid slabs. Analysis of seismic anisotropy in the subducted Nazca Plate beneath Peru suggests that the…”
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Slab Transport of Fluids to Deep Focus Earthquake Depths—Thermal Modeling Constraints and Evidence From Diamonds by Shirey, Steven B., Wagner, Lara S., Walter, Michael J., Pearson, D. Graham, van Keken, Peter E.

“…The nature and cause of deep earthquakes remain enduring unknowns in the field of seismology. We present new models of thermal structures of subducted slabs…”
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Distinctive upper mantle anisotropy beneath the High Lava Plains and Eastern Snake River Plain, Pacific Northwest, USA by Lara S. Wagner, Maureen D. Long

“…The Pacific Northwest (PNW) has experienced voluminous intraplate volcanism over the past ∼17 Ma, beginning with the Steens/Columbia River flood basalts and…”
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The role of ridges in the formation and longevity of flat slabs by Antonijevic, Sanja Knezevic, Wagner, Lara S., Kumar, Abhash, Beck, Susan L., Long, Maureen D., Zandt, George, Tavera, Hernando, Condori, Cristobal

“…Flat-slab subduction is often proposed to cause deformation of continental crust far from plate boundaries as well as unusual patterns of volcanism; a study of…”
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The Pucallpa Nest and its constraints on the geometry of the Peruvian Flat Slab by Wagner, Lara S., Okal, Emile A.

“…Seismic nests (or clusters) are typically defined as regions of high seismic activity at intermediate depths that do not move over time and are not associated…”
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Aseismic mid-crustal magma reservoir at Cleveland Volcano imaged through novel receiver function analyses by Janiszewski, Helen A., Wagner, Lara S., Roman, Diana C.

“…Processes related to eruptions at arc volcanoes are linked by structures that transect the entire crust. Imaging the mid- to lower-crustal portions (here,…”
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The relative roles of inheritance and long-term passive margin lithospheric evolution on the modern structure and tectonic activity in the Southeastern United States by Wagner, Lara S, Fischer, Karen M, Hawman, Robert, Hopper, Emily, Howell, Dorran

“…We perform inversions for the shear-wave velocity structure of the southeastern United States (SEUS) using Rayleigh-wave phase and amplitude data from the…”
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Ps‐P Tomography of a Midcrustal Magma Reservoir Beneath Cleveland Volcano, Alaska by Portner, Daniel Evan, Wagner, Lara S., Janiszewski, Helen A., Roman, Diana C., Power, John A.

“…Seismic tomography of the crust is an essential tool for studying the three‐dimensional structure of magmatic plumbing systems feeding active volcanoes, but it…”
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Cooling of the continental plate during flat-slab subduction by Liu, Xiaowen, Currie, Claire A, Wagner, Lara S

“…Most flat-slab subduction regions are marked by an absence of arc volcanism, which is consistent with closure of the hot mantle wedge as the subducting plate…”
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Upper mantle anisotropy beneath Peru from SKS splitting: Constraints on flat slab dynamics and interaction with the Nazca Ridge by Eakin, Caroline M., Long, Maureen D., Wagner, Lara S., Beck, Susan L., Tavera, Hernando

“…The Peruvian flat slab is by far the largest region of flat subduction in the world today, but aspects of its structure and dynamics remain poorly understood…”
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Receiver function analysis reveals layered anisotropy in the crust and upper mantle beneath southern Peru and northern Bolivia by Bar, Neta, Long, Maureen D., Wagner, Lara S., Beck, Susan L., Zandt, George, Tavera, Hernando

“…Subduction systems play a key role in plate tectonics, but the deformation of the crust and uppermost mantle during continental subduction remains poorly…”
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Estimating crustal thickness using SsPmp in regions covered by low‐velocity sediments: Imaging the Moho beneath the Southeastern Suture of the Appalachian Margin Experiment (SESAME) array, SE Atlantic Coastal Plain by Parker Jr, E. Horry, Hawman, Robert B., Fischer, Karen M., Wagner, Lara S.

“…Deconvolved waveforms for two earthquakes (Mw: 6.0 and 5.8) show clear postcritical SsPmp arrivals for broadband stations deployed across the coastal plain of…”
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Relationship between observed upper mantle structures and recent tectonic activity across the Southeastern United States by Biryol, C. Berk, Wagner, Lara S., Fischer, Karen M., Hawman, Robert B.

“…The lithospheric structure of the Southeastern United States is a product of earlier episodes of continental collision and breakup. The region is located in…”
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Response of the mantle to flat slab evolution: Insights from local S splitting beneath Peru by Eakin, Caroline M., Long, Maureen D., Beck, Susan L., Wagner, Lara S., Tavera, Hernando, Condori, Cristóbal

“…The dynamics of flat subduction, particularly the interaction between a flat slab and the overriding plate, are poorly understood. Here we study the…”
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Crustal evolution across the southern Appalachians: Initial results from the SESAME broadband array by Parker Jr, E. Horry, Hawman, Robert B., Fischer, Karen M., Wagner, Lara S.

“…Receiver functions from the EarthScope Southeastern Suture of the Appalachian Margin Experiment broadband deployment and U.S. Transportable Array were analyzed…”
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Effects of Oceanic Crustal Thickness on Intermediate Depth Seismicity by Wagner, Lara S., Caddick, Mark J., Kumar, Abhash, Beck, Susan L., Long, Maureen D.

“…The occurrence of intermediate depth seismicity (70–300 km) is commonly attributed to the dehydration of hydrous phases within the downgoing oceanic plate…”
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