Chapter 17: Uplift and exposure of the Panamint metamorphic complex, California

1990 ◽  
pp. 345-362 ◽  
Author(s):  
Theodore C. Labotka ◽  
Arden L. Albee
Keyword(s):  
Metamorphic Complex

The Zirconometry and Thermochronology of Migmatized Gneisses of the Gondaray Metamorphic Complex (Greater Caucasus)

2020 ◽  
Vol 75 (5) ◽  
pp. 481-495
Author(s):  
V. Yu. Gerasimov ◽  
V. A. Snezhko ◽  
J. Mosar ◽  
A. N. Pismennyi ◽  
N. L. Enna ◽  
...  
Keyword(s):  
Metamorphic Complex ◽  
Greater Caucasus

NOVILLO METAMORPHIC COMPLEX, HUIZACHAL-PEREGRINA ANTICLINORIUM, TAMAULIPAS, MEXICO: CHARACTERIZATION AND DEVELOPMENT BASED ON WHOLE-ROCK GEOCHEMISTRY AND ND-ISOTOPIC RATIOS

2020 ◽  
Author(s):  
Eduardo Alejandro Alemán Gallardo ◽  
◽  
Juan Alonso Ramirez Fernandez ◽  
Bodo Weber ◽  
Uwe Jenchen ◽  
...  
Keyword(s):  
Isotopic Ratios ◽  
Metamorphic Complex

Heavy minerals solve structural and stratigraphic problems in Ordovician strata of the western Irish Caledonides

2003 ◽  
Vol 140 (1) ◽  
pp. 25-30 ◽  
Author(s):  
MARIA A. MANGE ◽  
JOHN F. DEWEY ◽  
DAVID T. WRIGHT
Keyword(s):  
Island Arc ◽  
Heavy Minerals ◽  
Metamorphic Complex ◽  
The South ◽  
Standard Sequence ◽  
Western Ireland ◽  
Complex Parts ◽  
Wide Horizon

Heavy minerals in Ordovician successions in western Ireland record, in the Upper Arenig Sheeffry Formation, the erosion of an ophiolite/island arc complex. The appearance of staurolite and garnet at a basin-wide horizon in the Lower Llanvirn Upper Derrylea Formation signals the unroofing of the Dalradian metamorphic complex. Parts of the Ordovician sequence on Inishturk and in two small inliers are correlated with the standard sequence with unexpected results. The garnet-, sillimanite-, and staurolite-bearing Letter Formation correlates with the Upper Derrylea Formation and, on Inishturk, heavy minerals in south-younging turbidites reveal a sinistral ramp zone, that places the Sheeffry Formation structurally above and to the south of the younger Derrylea Formation.

Tectonic evolution of kid metamorphic complex and the recognition of Najd fault system in South East Sinai, Egypt

2017 ◽  
Vol 106 (8) ◽  
pp. 2817-2836 ◽  
Author(s):  
Yasser M. Sultan ◽  
Mohamed K. El-Shafei ◽  
Mohamed O. Arnous
Keyword(s):  
Tectonic Evolution ◽  
Fault System ◽  
Metamorphic Complex ◽  
Najd Fault System

scholarly journals The Dabie Extensional Tectonic System: Structural Framework

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Quanlin Hou ◽  
Hongyuan Zhang ◽  
Qing Liu ◽  
Jun Li ◽  
Yudong Wu
Keyword(s):  
Shear Zone ◽  
Shear Zones ◽  
Ultrahigh Pressure ◽  
Metamorphic Complex ◽  
The South ◽  
Magma Intrusion ◽  
The North ◽  
Extensional Tectonic ◽  
Mechanism Transition ◽  
Tectonic System

A previous study of the Dabie area has been supposed that a strong extensional event happened between the Yangtze and North China blocks. The entire extensional system is divided into the Northern Dabie metamorphic complex belt and the south extensional tectonic System according to geological and geochemical characteristics in our study. The Xiaotian-Mozitan shear zone in the north boundary of the north system is a thrust detachment, showing upper block sliding to the NNE, with a displacement of more than 56 km. However, in the south system, the shearing direction along the Shuihou-Wuhe and Taihu-Mamiao shear zones is tending towards SSE, whereas that along the Susong-Qingshuihe shear zone tending towards SW, with a displacement of about 12 km. Flinn index results of both the north and south extensional systems indicate that there is a shear mechanism transition from pure to simple, implying that the extensional event in the south tectonic system could be related to a magma intrusion in the Northern Dabie metamorphic complex belt. Two 40Ar-39Ar ages of mylonite rocks in the above mentioned shear zones yielded, separately, ~190 Ma and ~124 Ma, referring to a cooling age of ultrahigh-pressure rocks and an extensional era later.

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