Results 61 to 70 of about 30,385 (227)
Terra Nova, EarlyView.ABSTRACT The flexural profile of a foreland basin is controlled by lower plate strength and the magnitude of (sub)surface loads. Assuming that lower plate strength remains largely constant during flexure, changes in the flexural profile hint at reorganisations of (sub)surface loading.
Lucas H. J. Eskens +2 more
wiley +1 more source
Cryogenian Glacial Erosion and Tectonics as Agents of Crustal Recycling
Terra Nova, EarlyView.ABSTRACT Zircon preserves evidence of recycling processes that link surface environments to the mantle. Combined δ18O‐εHf in zircon fingerprints magmatic sources and tracks how crustal material is reworked over time. We apply statistical analyses to a global compilation that apparently resolves shifts in zircon U–Pb, δ18O, and Lu‐Hf data spanning the ...
M. Seraine +9 more
wiley +1 more source
Surface and Crustal Response to Deep Subduction Dynamics: Insights From the Apennines, Italy [PDF]
, 2023 Riccardo Lanari +4 more
openalex +1 more source
Giant Porphyry Copper Deposits Caused by a Slab Jamming in the Mantle Transition Zone
Terra Nova, EarlyView.ABSTRACT Two giant porphyry copper deposits in the Southern Central Andes formed during the Miocene–Pliocene transition when a bend in the subducting Juan de Fernández hotspot chain jammed in the mantle transition zone, causing mega‐scale slab‐kinking. This geometry implies mechanical resistance that caused East–West compression and eventually a thrust‐
Nipaporn Nakrong +5 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, 2014 The Iranian plateau is a vast inland region with a smooth average elevation of c. 1.5 km formed at the rear of the Zagros orogen as a result of the Arabia‐Eurasia collision (i.e., over the last 30–35 Myr).
T. François +3 more
doaj +1 more source
Multiple Slabs and Complex Mantle Flows in the Molucca Sea Subduction Zone
Geochemistry, Geophysics, GeosystemsThe Molucca Sea subduction zone is unique for its active divergent double‐subducted slab located in the north of the Java and Banda subduction zones. The spatial proximity of these subduction zones would cause a complex mantle flow field.
Tianmeng Yuan +4 more
doaj +1 more source
Frictional Behavior of Input Sediments to the Hikurangi Trench, New Zealand
Geochemistry, Geophysics, Geosystems, 2018 The Hikurangi subduction zone hosts shallow slow‐slip events, possibly extending to the seafloor. The mechanisms allowing for this behavior are poorly understood but are likely a function of the frictional properties of the downgoing seafloor sediments ...
H. S. Rabinowitz +5 more
doaj +1 more source
On the Scales of Dynamic Topography in Whole‐Mantle Convection Models
Geochemistry, Geophysics, Geosystems, 2018 Mantle convection shapes Earth's surface by generating dynamic topography. Observational constraints and regional convection models suggest that surface topography could be sensitive to mantle flow for wavelengths as short as 1,000 and 250 km ...
M. Arnould +4 more
doaj +1 more source