| 东阿尔卑斯原-古特提斯构造演化 |
| |
| 引用本文： | 袁四化,刘永江,NEUBAUER Franz,常瑞虹,GENSER Johann,关庆彬,黄倩雯.东阿尔卑斯原-古特提斯构造演化[J].岩石学报,2020,36(8):2357-2382. |
| |
| 作者姓名： | 袁四化 刘永江 NEUBAUER Franz 常瑞虹 GENSER Johann 关庆彬 黄倩雯 |
| |
| 作者单位： | 防灾科技学院地球科学学院, 三河 065201;中国海洋大学海底科学与探测技术教育部重点实验室, 海洋高等研究院, 中国海洋大学海洋地球科学学院, 青岛 266100;青岛海洋科学与技术国家实验室, 海洋矿产资源评价与探测技术功能实验室, 青岛 266237;Department Geography and Geology, University of Salzburg, Salzburg A-5020 |
| |
| 基金项目： | 本文受国家自然科学基金项目（91755212、41772200）、中央高校教师基金（ZY20110202）、泰山学者（ts20190918）和青岛市创新领军人才计划（19-3-2-19-zhc） 联合资助. |
| |
| 摘 要： | 新生代阿尔卑斯是非洲和欧洲之间的陆陆碰撞造山带。强烈的造山作用使大量前中生代基底出露地表,尽管这些基底被强烈逆冲推覆和走滑叠置,但是仍保留较丰富的前中生代基底演化信息。结合近几年对东阿尔卑斯原-古特提斯的研究,本文梳理和重建了阿尔卑斯前中生代基底的构造格局,认为前阿尔卑斯基底受原特提斯、南华力西洋、古特提斯洋构造体系影响而经历了多期造山过程。新元古代-早古生代的原阿尔卑斯作为环冈瓦纳地块群的组成部分,受原特提斯洋俯冲的制约,是新元古-早古生代环冈瓦纳活动陆缘的组成部分,其中,海尔微-彭尼内基底组成外缘增生系统,包括卡多米期地壳碎片在内的陆缘弧/岛弧以及大量增生楔组成内缘增生系统。早奥陶世瑞亚克洋打开,随后原阿尔卑斯从冈瓦纳陆缘裂离,在泥盆纪-石炭纪受南华力西洋控制,海尔微-彭尼内-中、下奥地利阿尔卑斯从冈瓦纳分离。在早石炭世(维宪期)南阿尔卑斯(或与之相当的冈瓦纳源地块)与北部阿莫里卡地块群拼贴增生于古欧洲大陆南缘,共同组成华力西造山带(广义),华力西期缝合带保留在绍山-科尔山南侧。晚石炭世-早二叠世,阿尔卑斯受古特提斯洋的俯冲影响,在华力西造山带南侧形成安第斯山型活动大陆边缘,古特提斯洋在阿尔卑斯的演化至少持续到早三叠世,消亡遗迹保留在中奥地利阿尔卑斯基底的Plankogel杂岩中。
|
| 关 键 词： | 阿尔卑斯 原特提斯洋 古特提斯洋 冈瓦纳 卡多米 加里东 华力西 造山作用 |
| 收稿时间： | 2020/4/1 0:00:00 |
| 修稿时间： | 2020/7/2 0:00:00 |
Tectonic evolution of Proto- and Paleo-Tethyan in the East Alps |
| |
| YUAN SiHu,LIU YongJiang,NEUBAUER Franz,CHANG RuiHong,GENSER Johann,GUAN QingBin,HUANG QianWen.Tectonic evolution of Proto- and Paleo-Tethyan in the East Alps[J].Acta Petrologica Sinica,2020,36(8):2357-2382. |
| |
| Authors: | YUAN SiHu LIU YongJiang NEUBAUER Franz CHANG RuiHong GENSER Johann GUAN QingBin HUANG QianWen |
| |
| Institution: | College of Earth Sciences, Institute of Disaster Prevention, Sanhe 065201, China;Key Lab of Submarine Geoscience and Prospecting Techniques, Frontiers Science Center for Deep Ocean Multispheres and Earth System, MOE, College of Marine Geosciences, Ocean University of China, Qingdao 266100, China;Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China;Department Geography and Geology, University of Salzburg, Salzburg A-5020, Austria |
| |
| Abstract: | The Cenozoic Alps was stemmed from continent-continent collision between the Africa and the Europe plates. A large number of pre-Mesozoic basements are exposed because of the strong deformation of the Cenozoic orogeny. Although these basements were strongly thrust and/or sliced, the geological history of the pre-Mesozoic basement is well preserved in them. Together with our recent studies for Proto- and Paleo-Tethys in the East Alps, this paper reconstructs a brief tectonic frame of the pre-Mesozoic basements in the Alps. The pre-Alpine basements underwent multiple orogenic processes under the influences of tectonic system of the Proto-Tethys, southern Rheic Ocean and Paleo-Tethys. The Proto-Alps in the Neoproterozoic-Early Paleozoic, as a part of the peri-Gondwana terrane group making up the active continental margin of the mother landmass, was controlled by the subduction of the Proto-Tethys. The Helvetic-Penninic basement, constructing the outmost accretionary system in front of the Proto-Alps, is composed of a series of Cadomian fragments including epicontinental/island arc and abundant accrentionary complexes. The Rheic Ocean opened in the Early Ordovician, then the Proto-Alps was separated and rifted from the Gondwana. From the Devonian to the Carboniferous, the Proto-Alps was controlled by the southern Variscan Ocean, which separated the Helvetic-Penninic-Middle/Lower Austroalpine from the Gondwana. In the Early Carboniferous (Visean), the South Alps (or the equivalent splitted from the Gondwana) and the northern Amorica terrane group docked together on the southern Paleo-Europe, from which the Variscan orogenic belt (senso lato) was built, i.e., the Variscan suture in the Alps is located on the south of Sauaple-Koralpe. In the Late Carboniferous-Early Permian, the Alps was affected by the subduction of the Paleo-Tethys, forming the Andean-type active continental margin on the south wing of the Variscan orogenic belt. The Paleo-Tethys Ocean in the Alps lasted at least to the Early Triassic, and its relics remain in the Plankogel complex of the Middle Austroalpine. |
| |
| Keywords: | Alps Proto-Tethys Paleo-Tethys Gondwana Cadomian Caledonian Variscan Orogeny |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《岩石学报》浏览原始摘要信息 |
| 点击此处可从《岩石学报》下载免费的PDF全文 |
|
