Multistage lithospheric drips control active basin formation within an uplifting orogenic plateau
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Date
2024
Journal Title
Journal ISSN
Volume Title
Publisher
Nature Portfolio
Access Rights
info:eu-repo/semantics/openAccess
Abstract
According to GNSS/INSAR measurements, the Konya Basin in Central Anatolia is undergoing rapid subsidence within an uplifting orogenic plateau. Further, geophysical studies reveal thickened crust under the basin and a fast seismic wave speed anomaly in the underlying mantle, in addition to a localised depression in calculated residual topography (down to 280 m) over the Konya Basin, based on gravity-topography considerations. Using scaled laboratory (analogue) experiments we show that the active formation of the Konya Basin may be accounted for by the descent of a mantle lithospheric drip causing local circular-shaped surface subsidence. We interpret that the Konya Basin is developing through a secondary drip pulse that is contemporaneous with broad plateau uplift caused by a larger-scale lithospheric drip since the Miocene. The research reveals that basin evolution and plateau uplift may be linked in a multistage process of lithospheric removal during episodic development of orogenic systems. Active subsidence of the Konya region, Turkiye, is attributed to descent of a lithospheric drip into the mantle, according to analogue models, and suggests that major tectonic events may be linked to multistage dynamic flow processes in the mantle.
Description
Keywords
Central Anatolian Plateau, Central Andean Plateau, Isostatic Compensation, Tectonic Evolution, Turkey, Mantle, Konya, Insights, Delamination, Beneath
Journal or Series
Nature Communications
WoS Q Value
N/A
Scopus Q Value
Q1
Volume
15
Issue
1
