A tectonic window, or fenster (lit. "window" in German), is a geologic structure formed by erosion or normal faulting on a thrust system. In such a system the rock mass (hanging wall block) that has been transported by movement along the thrust is called a nappe.

In geology, a slab window is a gap that forms in a subducted oceanic plate when a mid-ocean ridge meets with a subduction zone and plate divergence at the ridge and convergence at the subduction zone continue, causing the ridge to be subducted. [2]

2023年12月1日 · In this contribution we link geophysical and geochemical observations from modern slab windows to the asthenospheric flow, temperature field and extent of melting using different geometries.

2018年2月26日 · A slab window occurs where a subducting plate tears or breaks-off, or where two plates subduct along a spreading ridge. This process alters mantle circulation and melting processes in the region, changing the chemistry of magmatism observed at the surface.

A tectonic window, or fenster (lit. "window" in German), is a geologic structure formed by erosion or normal faulting on a thrust system. In such a system the rock mass (hanging wall block) that has been transported by movement along the thrust is called a nappe.

A window ( fenster in German, fenêtre in French) is an erosional opening in the sole of a nappe (thrust) through which are visible the underlying rocks that belong to another tectonic unit. The frame of this tectonic window is formed of the overlying nappe.

2017年7月14日 · The slab window induced upwelling flow of viscous asthenosphere into the vacated place and generated a series of dynamic processes, such as seismic and magmatic activities, high heat flow, gravity anomaly, and spatiotemporal evolution of crustal thickness [Furlong and Schwartz, 2004]. Thus, the North Californian Coast Ranges become a unique ...

As a consequence of subduction of the Kula-Farallon and East Pacific rises, slab windows formed and migrated beneath the North American Cordillera. The probable shape and extent of these windows, which represent the asthenosphere-filled gaps between two separating, subducting oceanic plates, are depicted from the Late Cretaceous to the present.

1998年8月20日 · This animation of the tectonic evolution of western North America shows the birth and lengthening of the San Andreas fault as the triple junction moves north over the past 40 million years.

The Pine Mountain terrane, the southernmost basement massif in the southern Appalachians, comprises a Grenville age basement complex and Paleozoic (?) cover sequence, now exposed in a complex window within the Piedmont terrane. The window is framed at its eastern end by three faults, all of demonstrably different ages.