Diachronism in the late Neoproterozoic-Cambrian arc-rift transition of North Gondwana: A comparison of Morocco and the Iberian Ossa-Morena Zone

被引：59

作者：

Alvaro, J. Javier ^{[1
]}

Bellido, Felix ^{[2
]}

Gasquet, Dominique ^{[3
]}

Pereira, M. Francisco ^{[4
]}

Quesada, Cecilio ^{[2
]}

Sanchez-Garcia, Teresa ^{[2
]}

机构：

[1] CSIC, INTA, Ctr Astrobiol, Torrejon De Ardoz 28850, Spain

[2] IGME, Madrid 28003, Spain

[3] Univ Savoie, CNRS, EDYTEM, UMR 5204, F-73376 Le Bourget Du Lac, France

[4] Univ Evora, ECT, IDL, Dept Geociencias, P-7001554 Evora, Portugal

来源：

JOURNAL OF AFRICAN EARTH SCIENCES | 2014年 / 98卷

关键词：

Cadomian and Pan-African belts; Anti-Atlas; Volcanic geochemistry; Ediacaran-Cambrian paleogeography; WESTERN ANTI-ATLAS; PALEOZOIC TECTONIC EVOLUTION; DETRITAL ZIRCON DATA; U-PB GEOCHRONOLOGY; GEODYNAMIC EVOLUTION; BOHEMIAN MASSIF; PASSIVE MARGIN; AFRICAN CRATON; RHEIC OCEAN; CARBONATE PRODUCTIVITY;

D O I：

10.1016/j.jafrearsci.2014.03.024

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In the northwestern border of the West African craton (North Gondwana), a transition from late Neoproterozoic subduction/collision to Cambrian rift processes was recorded in the Anti-Atlas (Morocco) and in the Ossa-Morena Zone (Iberia). Cambrian rifting affected both Pan-African and Cadomian basements in a stepwise and diachronous way. Subsequently, both areas evolved into a syn-rift margin episodically punctuated by uplift and tilting that precluded Furongian sedimentation. A comparison of sedimentary, volcanic and geodynamic evolution is made in the late Neoproterozoic (Pan-African and Cadomian) belts and Cambrian rifts trying to solve the apparent diachronous (SW-NE-trending) propagation of an early Palaeozoic rifting regime that finally led to the opening of the Rheic Ocean. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：113 / 132

页数：20

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