澳大利亚悉尼大学Youseph Ibrahim及其课题组成员最新的研究显示,聚合重力塌陷能解释澳大利亚中部同期的克拉通内隆起和推覆构造。2024年1月16日出版的《地质学》杂志发表了这项成果。
研究人员采用野外工作、地质年代学和数值模拟相结合的方法,来研究这些特征的结构和构造演化。研究提出了一个结构模型,该模型包括整体穹隆的伸展域,穿过一个包含
据悉,在澳大利亚中部克拉通内部环境背景下,毗邻逆冲带(Arltunga推覆复合体)发育有一个明显是同时期的片麻岩穹窿(Entia穹窿)。
附:英文原文
Title: From dome to duplex: Convergent gravitational collapse explains coeval intracratonic doming and nappe tectonics, central Australia
Author: Youseph Ibrahim, Patrice F. Rey, Donna L. Whitney, Christian Teyssier, Franoise Roger, Valérie Bosse, Bénédicte Cenki
Issue&Volume: 2024-01-16
Abstract: In central Australia, an apparently coeval gneiss dome (Entia Dome) developed adjacent to a thrust belt (Arltunga Nappe Complex) within an intracratonic setting. Here we employ a combination of fieldwork, geochronology, and numerical modeling to investigate the structure and tectonic evolution of these features. We present a structural model linking an extensional domain comprising the Entia Dome, across a transitional zone containing the Bruna décollement zone and the Illogwa shear zone, into a contractional zone comprising thrusts and duplexes of the Arltunga Nappe Complex. Supported by numerical modeling, we propose a tectonic model in which the dome and nappe complex formed synchronously because of the convergent gravitational collapse of the 3040-km-deep Paleozoic Harts Range rift.
DOI: 10.1130/G51721.1
Geology:《地质学》,创刊于1973年。隶属于美国地质学会,最新IF:6.324
官方网址:https://pubs.geoscienceworld.org/geology
投稿链接:https://geology.msubmit.net/cgi-bin/main.plex