Reconstructions of the history convergence between Nubia and Eurasia plates constitute an important part a broader framework for understanding deformation in Mediterranean region closing Basin. Herein, we combine high-resolution reconstructions Eurasia-North America Nubia-North Plate motions to determine rotations that describe Nubia-Eurasia motion at ∼1 Myr intervals past 20 Myr. We apply trans-dimensional hierarchical Bayesian inference rotation sequences order reduce noise newly estimated...

Research Article| October 01, 2006 Feedback between mountain belt growth and plate convergence Giampiero Iaffaldano; Iaffaldano 1Section of Geophysics, Ludwig-Maximilians University, Munich 80539, Germany Search for other works by this author on: GSW Google Scholar Hans-Peter Bunge; Bunge Timothy H. Dixon 2Rosenstiel School Marine Atmospheric Sciences, 4600 Rickenbacker Causeway, Miami, Florida 33149, USA Geology (2006) 34 (10): 893–896. https://doi.org/10.1130/G22661.1 Article history...

The South Atlantic region displays (1) a topographic gradient across the basin, with Africa elevated relative to America, (2) bimodal spreading history fast rates in Late Cretaceous and Eo-Oligocene, (3) episodic regional uplift events adjacent continents concentrated Oligocene. Here we show that these observations can be linked by dynamic processes within Earth's mantle, through temporal changes asthenosphere flow beneath region. implies westward, pressure-driven mantle while rapid rate...

Large topographic belts along convergent margins have been recognized with the ability to slowdown kinematics of subduction over geologically short time periods (i.e., few Myr), because their associated gravitational spreading provides significant resistive force within framework plate tectonics. The record past and present‐day important constraints on dynamics lithosphere, plate‐motion changes must reflect temporal in balance driving resisting forces. Here we focus convergence between...

Past and current plate motions are increasingly well mapped from high-temporal-resolution paleomagnetic geodetic studies, revealing rapid variations that occur on short timescales relative to the time it takes for large-scale structure associated with mantle buoyancy evolve. The rates of change velocities hold key information geodynamic, tectonic, Earth's surface processes may have caused them. Rapid motion changes thus provide us a unique opportunity quantify forcing these processes....

Abstract The Pacific Plate is thought to be driven mainly by slab pull, associated with subduction along the Aleutians‐Japan, Marianas‐Izu‐Bonin, and Tonga‐Kermadec trenches. This implies that viscous flow within sub‐Pacific asthenosphere generated overlying plate motion (i.e., Couette flow) shear stresses at lithosphere's base are resisting such motion. Recent studies on glacial isostatic adjustment lithosphere dynamics provide tighter constraints viscosity thickness of Earth's and,...

Abstract. The basic equations used to study the fluid diffusion in porous media have been set by Fick and Darcy mid of XIXth century but some data on flow fluids rocks exhibit properties which may not be interpreted with classical theory propagation pressure (Bell Nur, 1978; Roeloffs, 1988). Concerning flow, carry solid particles obstruct pores diminishing their size or even closing them, others chemically physically react medium enlarging pores; so permeability changes during time occurs as...

Abstract The Andean cordillera was constructed during compressive tectonic events, whose causes and controls remain unclear. Exploring a possible link to plate convergence has been impeded by the coarse temporal resolution of existing kinematic models. Here we show that Neogene evolution margin is primarily related changes in as observed new high-resolution reconstructions. Building on compilation finite rotations spanning last 30 million years using noise-mitigation techniques, predict...

Mantle convection is a crucial component for providing driving and resisting forces horizontal motion of tectonic plates, as well generating non-isostatic vertical commonly termed “dynamic topography”. These two kinds surface are often investigated in isolation. However, the existence thin, mechanically weak asthenosphere allows us to study mantle context Couette/Poiseuille flow, which links flow properties temporal changes both motions. In this study, we utilize publicly...

Viscosity and thickness of Earth’s asthenosphere are typically inferred from observations postglacial rebound the lithosphere. Parameter values deduced studies these serve a wide range geodynamic models that simulate processes evolving over time periods hundred Myr - much longer than duration process itself. The question remains whether inferences derived kyr-long hold Myr-long periods. record past motions non-subducting plates may help address such question, because necessarily...

Abstract Present‐day continental extension along the East African Rift System (EARS) has often been attributed to diverging sublithospheric mantle flow associated with Superplume. This implies a degree of viscous coupling between and lithosphere that remains poorly constrained. Recent advances in estimating present‐day opening rates EARS from geodesy offer an opportunity address this issue geodynamic modeling mantle‐lithosphere system. Here we use numerical models global mantle‐plates...

Knowledge of past plate motions derived from ocean-floor finite rotations is an important asset the Earth Sciences, because it allows linking a variety shallow-rooted and deep-rooted geological processes. Efforts have recently been taken toward inferring at unprecedented temporal resolution 1 Myr or less, more data are anticipated in near future. These reconstructions, like any set, feature degree noise that compromises significantly our ability to make geodynamical inferences. Bayesian...

Research Article| June 01, 2008 Strong plate coupling along the Nazca–South America convergent margin Giampiero Iaffaldano; Iaffaldano 1Geophysics Section, Department of Earth and Environmental Sciences, Ludwig-Maximilians University, Munich 80333, Germany *Current address: Planetary Harvard Cambridge, Massachusetts 02138, USA: E-mail: iaffaldano@eps.harvard.edu. Search for other works by this author on: GSW Google Scholar Hans-Peter Bunge Geology (2008) 36 (6): 443–446....

Knowledge of Nubia/Somalia relative motion since the Early Neogene is particular importance in Earth Sciences, because it (i) impacts on inferences African dynamic topography; and (ii) allows us to link plate kinematics within Indian realm with those Atlantic basin. The contemporary well known from geodetic observations. Precise estimates past-3.2-Myr average are also available paleo-magnetic However, little prior ∼3.2 Ma, chiefly Southwest Ridge spread slowly, posing a challenge precisely...

Abstract The timing and magnitude of a Pacific plate motion change within the past 10 Ma remains enigmatic, due to noise associated with finite‐rotation data. Nonetheless, it has been hypothesized that this was driven by arrival Ontong Java Plateau (OJP) at Melanesian arc consequent subduction polarity reversal. uncertainties event, however, make difficult quantitatively demonstrate dynamical association. Here, we first reconstruct plate's absolute since mid‐Miocene (15 Ma), high‐temporal...

Recent numerical models that couple global mantel circulation with lithosphere dynamics show growth of the central Andes controls 30% reduction convergence velocity between Nazca and South America plates observed over past 10 Ma. The increase gravitational potential energy due to topographic is also a major control on stress pattern. Here we use which reproduce Nazca/South history predict change pattern in for Comparison modeled orientations at present‐day ones results ±23.9° mean deviation....