Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Detrital zircon trace elements from the Mesozoic Jiyuan Basin, central China and its implication on tectonic transition of the Qinling Orogenic Belt
View through CrossRef
AbstractThe Qinling Orogen and the Jiyuan Basin constitute a basin-mountain system during the Early Mesozoic. Therefore, sediments from the Jiyuan Basin can be used to deduce the orogenic process of the Qinling Orogen. This paper attempts to use detrital zircon trace elements with ages ranging from the Late Carboniferous to the Middle Triassic that were obtained from the Jiyuan Basin to discuss the tectonic evolution of Qinling Orogen. On the tectonic setting discriminating diagrams, most grains are concentrated in convergent continental margins/orogenic settings,whereas the remaining samples (268 Ma, 265Ma, 264 Ma and 254Ma) are plotted in anorogenic field. Compared to the Early Paleozoic (400-500Ma) zircons, 306Ma and 281Ma grains represent higher Th/ Nb ratios, which might be related to the Mianlve oceanic crust subduction. The lower Th/Nb ratios containing 268 Ma, 265Ma, 264 Ma and 254Ma grains might indicate lithospheric extension subsequently. The final continent-continent collision between South China and North China blocks took place after the Middle Triassic (242Ma).
Title: Detrital zircon trace elements from the Mesozoic Jiyuan Basin, central China and its implication on tectonic transition of the Qinling Orogenic Belt
Description:
AbstractThe Qinling Orogen and the Jiyuan Basin constitute a basin-mountain system during the Early Mesozoic.
Therefore, sediments from the Jiyuan Basin can be used to deduce the orogenic process of the Qinling Orogen.
This paper attempts to use detrital zircon trace elements with ages ranging from the Late Carboniferous to the Middle Triassic that were obtained from the Jiyuan Basin to discuss the tectonic evolution of Qinling Orogen.
On the tectonic setting discriminating diagrams, most grains are concentrated in convergent continental margins/orogenic settings,whereas the remaining samples (268 Ma, 265Ma, 264 Ma and 254Ma) are plotted in anorogenic field.
Compared to the Early Paleozoic (400-500Ma) zircons, 306Ma and 281Ma grains represent higher Th/ Nb ratios, which might be related to the Mianlve oceanic crust subduction.
The lower Th/Nb ratios containing 268 Ma, 265Ma, 264 Ma and 254Ma grains might indicate lithospheric extension subsequently.
The final continent-continent collision between South China and North China blocks took place after the Middle Triassic (242Ma).
Related Results
SIMPLE FORMS OF ZIRCON CRYSTALS FROM CRYSTALLINE ROCKS OF THE UKRAINIAN SHIELD AND THEIR MORPHOLOGICAL TYPES
SIMPLE FORMS OF ZIRCON CRYSTALS FROM CRYSTALLINE ROCKS OF THE UKRAINIAN SHIELD AND THEIR MORPHOLOGICAL TYPES
The main basics in geometric crystallography of zircon, developed by many researchers in the 18th - 20th centuries, are briefly described. The data of goniometric study of zircon f...
Zircon – Tiny but Telling: A Petrochronological Study
Zircon – Tiny but Telling: A Petrochronological Study
This thesis concerns the field of petrochronology, where time is linked to the physical
conditions (e.g., pressure P and temperature T) of rock-forming events, to provide better
co...
Geochemical Dataset of Magmatic Rocks along the Deep Seismic Reflection Profile of a Typical Basin-range Junction Belt in Western China: the Western Qinling-Linxia Basin
Geochemical Dataset of Magmatic Rocks along the Deep Seismic Reflection Profile of a Typical Basin-range Junction Belt in Western China: the Western Qinling-Linxia Basin
The western Qinling orogenic belt is located in the northeastern margin of the Qinghai
Tibet Plateau, and its lithosphere structure and changes record the deep process information ...
U–Pb Zircon Ages and Geochemistry of the Wuguan Complex and Liuling Group: Implications for the Late Paleozoic Tectonic Evolution of the Qinling Orogenic Belt, Central China
U–Pb Zircon Ages and Geochemistry of the Wuguan Complex and Liuling Group: Implications for the Late Paleozoic Tectonic Evolution of the Qinling Orogenic Belt, Central China
The tectonic evolution of the Qinling orogen is key to understanding the process of convergence between the North China Block (NCB) and the South China Block (SCB). The Wuguan Comp...
Onset of mountain building in the Qinling Mountains: Evidence from bedrock and detrital low-temperature thermochronology
Onset of mountain building in the Qinling Mountains: Evidence from bedrock and detrital low-temperature thermochronology
Abstract: Hinterland mountains serve as the pivotal link that spatially and temporally couples deep lithospheric processes with surface responses in orogenic systems. The Qinling M...
The Paleozoic subduction-splicing-extension process of the North China and South China Blocks: Constraints from sedimentary provenance of the Devonian Liuling Group and surrounding strata in the South Qinling Belt, China
The Paleozoic subduction-splicing-extension process of the North China and South China Blocks: Constraints from sedimentary provenance of the Devonian Liuling Group and surrounding strata in the South Qinling Belt, China
Much controversy exists regarding the timing of the Paleozoic amalgamation between the North China Block (NCB) and South China Block (SCB). The northern region of South Qinling bel...
Introduction to Orogenic Bridge Theory
Introduction to Orogenic Bridge Theory
Orogenic Bridge Theory proposes that orogens striking highly oblique to orthogonal to active rifts hinder rifting and breakup. The highly oblique character and low angle geometry o...
Geochronology and Tectonic Evolution of the West Section of the Jiangnan Orogenic Belt
Geochronology and Tectonic Evolution of the West Section of the Jiangnan Orogenic Belt
AbstractAs an important part of South China Old Land, the Jiangnan Orogenic Belt plays a significant role in explaining the assembly and the evolution of the Upper Yangtze Block an...