意大利国家地球物理和火山研究所Irene Menichelli课题组，近日研究了Adria微板块(地中海)的两侧大陆俯冲。这一研究成果发表在2025年1月7日出版的国际学术期刊《地质学》上。

据介绍，大陆岩石圈向地幔的再循环对造山带的结构和动力学产生了重大影响，特别是在地中海中部地区。

研究表明，高分辨率区域层析成像所揭示的大陆岩石圈流变特性的变化，影响了大陆俯冲的样式。研究人员通过对比俯冲过程来解释，相反边缘的Apennines造山带和Dinarides造山带的几何形状和演化，例如影响同一板块（Adriatic微板块，或Adria）的底板和大陆剥离。

以Apennines山脉为例，板块剥落在俯冲过程中占主导地位，导致板块陡倾。相比之下，由于大陆物质的底侵作用，Dinarides经历了平坦的俯冲。这些影响运动学和地表过程的不同机制，受大陆岩石圈的流变非均质性和不同浮力的支配。

附：英文原文

Title: The two-sided continental subduction of the Adria microplate (Mediterranean)

Author: Irene Menichelli, Pasquale De Gori, Francesca Funiciello, Chiarabba Claudio

Issue&Volume: 2025-01-07

Abstract: The recycling of the continental lithosphere back into the mantle significantly impacts the structure and dynamics of orogens, particularly in the central Mediterranean region. We demonstrate that variations in the rheological properties of the continental lithosphere, as revealed by high-resolution regional tomography, influence the style of continental subduction. We explain the geometry and evolution of the oppositely verging Apennines and Dinarides orogens, as given by contrasting subduction processes, such as underplating and continental delamination, affecting the same plate (the Adriatic microplate, or Adria). In the case of the Apennines, slab peel-back predominates during subduction, resulting in a steeply dipping slab. In contrast, the Dinarides experience flat subduction due to the underplating of continental material. These different mechanisms, influencing kinematics and surface processes, are governed by rheological heterogeneities and different buoyancies of the continental lithosphere.

DOI: 10.1130/G52556.1

Source: https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G52556.1/651308/The-two-sided-continental-subduction-of-the-Adria

来源：科学网  小柯机器人