Results 81 to 90 of about 263 (128)

In-situ calcite U-Pb geochronology of hydrothermal veins in Thailand: New constraints on Indosinian and Cenozoic deformation

Journal of Asian Earth Sciences, 2021
Abstract U-Pb dating of calcite veins allows direct dating of brittle deformation events. Here, we apply this method to hydrothermal calcite veins in a fold-and-thrust belt and a large scale strike-slip fault zone in central and western Thailand, in an attempt to shed new light on the regional upper crustal deformation history. Calcite U-Pb dates for
Alexander Simpson, Nick M W Roberts, Jack Lee   +2 more
exaly   +4 more sources

Petrogenesis and tectonic significance of early Indosinian A-type granites in the Xinxing pluton, southern South China

Mineralogy and Petrology, 2020
The Xinxing granitic pluton is a large batholith cropping out in southern South China with its long axis parallel to the regional NE–trending faults. We conduct the first comprehensive study of zircon laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) U–Pb chronology and trace element chemistry, rock-forming mineral chemistry and ...
Yao-Hui Jiang, Long Qing, Jiang Yao-Hui   +2 more
exaly   +2 more sources

Hercynian–Indosinian Sedimento–Tectonic Evolution of the Nanpanjiang Basin

Acta Geologica Sinica - English Edition, 1996
Abstract Following the orogeny in the Early Palaeozoic, the tectonic evolution of the Nanpanjiang basin in the Hercynian–Indosinian stage constituted a complete Wilson Cycle, made up of the stages of early rifting (D–P1), late rifting and passive margin developement (P2–T1), and peripheral foreland basin developement (T2–T3).
Qin Jianhua, Wu Yinglin, Yan Yangji, Zu Zhongfa   +3 more
openaire   +1 more source

Early Indosinian magmatism in the West Qinling orogen and its tectonic implication

2023
The West Qinling Orogen (WQO), which is bounded by the Qilian Orogenic Belt, Qaidam Block and the Songpan-Ganzi Block, is the western extension of the Qinling Orogenic Belt, and experienced complex tectonic evolution processes, involving the opening, subduction and closure history of the Proto- and Paleo-Tethys Oceans.
Meng Wang, Xianzhi Pei, Zuochen Li, Ruibao Li, Lei Pei, Youxin Chen, Chengjun Liu, Shaowei Zhao   +7 more
openaire   +1 more source

Palaeogeography of Late Triassic red-beds in Singapore and the Indosinian Orogeny

Journal of Asian Earth Sciences, 2013
Abstract A red-bed facies of the Upper Triassic Jurong Formation has been logged on Sentosa Island, Singapore. An overall coarsening and thickening-upward pattern is well developed. The lower part of the section is dominated by purple-red, massive to finely laminated illite–smectite–kaolin-rich mudstones containing thin, discontinuous lenses of fine ...
GRAHAME JOHN HENDERSON OLIVER, Prave, A.
openaire   +1 more source

Distribution and geochemical features of Hercynian-Indosinian granitoids in southeastern China

Chinese Journal of Geochemistry, 1987
The tectonic patterns of the Hercynian-Indosinian cycle in southeastern China can be divided into two types. The first type is the Hercynian-Indosinian eugeosynclinal system, which is situated on the outer side of the Caledonian uplift belts. The second type is the Hercynian-Indosinian fault depression zone or superimposed basin system, which is ...
Wang Dezi, Liu ChanGsm
openaire   +1 more source

Mesozoic geology of southwestern China: Indosinian foreland overthrusting and subsequent deformation

Journal of Asian Earth Sciences, 2016
Abstract The southwestern part of the South China Block (SCB) records Triassic and subsequent deformations and is a key region that provides evidence of the post-amalgamation tectonic evolution of Southeast Asia. Here, we outline the tectonothermal evolution of early Mesozoic orogenesis in this region using structural analysis and fission track ...
Liang Qiu, Dan-Ping Yan, Shuang-Li Tang, Qin Wang, Wen-Xin Yang, Xiangli Tang, Jibin Wang   +6 more
openaire   +1 more source

The Triassic Indosinian orogeny in East Asia - Foreword

2008
La tectonique récente, du Tertiaire à l'Actuel, est omniprésente dans l'Est et le Sud-Est asiatique, et s'y manifeste notamment sous la forme de décrochements crustaux de grande ampleur, comme celui du fleuve Rouge. Pour importante qu'elle soit, cette tectonique ne saurait faire oublier les événements orogéniques antérieurs auxquels elle s'est ...
Lepvrier, C., Maluski, Henri
openaire   +1 more source

Dating Tectonism in the Indosinian–Thai–Malayan Orogen by Thermoluminescence

Geological Society of America Bulletin, 1968
The thermoluminescence “ages” of a large and representative selection of limestone specimens from the Thai-Malayan geosyncline, ranging in stratigraphic age from Ordovician to Triassic, are related, not to stratigraphic age, but to tectonic and magmatic events in the Mesozoic Indosinian-Thai-Malayan orogeny.
openaire   +1 more source

Indosinian deformation of the Songpan Garzê Fold Belt, northeast Tibetan Plateau

Journal of Structural Geology, 2005
Abstract Deformation of the Songpan Garze Fold Belt, southwest China, occurred progressively during the Indosinian orogeny (ca. 230–200 Ma). Two phases of south-directed deformation are identified: D 1 , associated with pervasive thickening of the Songpan Garzi sedimentary pile and detachment of that portion of the fold belt onlapping the Yangtze ...
Mathew J. Harrowfield, Christopher J.L. Wilson   +1 more
openaire   +1 more source