Download Free Characteristics Of The Late Mesozoic Tectonic Evolution Of The South China Block And Geodynamic Implications Book in PDF and EPUB Free Download. You can read online Characteristics Of The Late Mesozoic Tectonic Evolution Of The South China Block And Geodynamic Implications and write the review.

The vast distribution and long duration of the Late Mesozoic magmatism in the eastern part of South China presents a unique case in the world. This offers a natural laboratory to study the process of magma genesis, the magma emplacement mode, the relationship between magmatism and tectonics, the geodynamic role on the magma emplacement and lithospheric evolution. Since 50's, particularly 90's of the last century, geoscientists have made important efforts in geological cartography and carried out numerous studies with remarkable scientific achievements, building a solid background to understand the tectonic evolution of the South China Block (SCB). However, certain fundamental questions mentioned above remain unsolved and/or are in hot debate. In order to make progress in these scientific issues, we have carried out in a multi-disciplinary study in the Late Mesozoic Qingyang-Jiuhua massif, Hengshan massif and Fujian coastal zone according to their distance with respect to the paleo subduction zone of the Paleo-Pacific plate, the ages of granitic massifs and related tectonics, including field observation on the structure geology, micro-observation on thin section, U-Pb dating on monazite, AMS, paleomagnetism, gravity modeling and P condition concern the granite emplacement. In the view of deformation in these granitic massifs and their country rocks, mode and influence of regional tectonics on the emplacement, though each studied zone reveals its distinguished characteristics, they show some intrinsic and common relationships between them. With our new results and integrating previous data, in this thesis, we discuss the tectonic context of emplacement of these Late Mesozoic magmatic massifs and the geodynamic evolution of the SCB., We propose a 3-step geodynamic model: (1) during 145-130 Ma period, the Paleo-Pacific plate subducted northwestwardly, the West Philippines micro-continent, approaching to SCB, important subduction-related arc volcanism was produced in the coastal areas of Southeast China coast (Zhejiang-Fujian-Guangdong), forming a back-arc extension tectonic system in SCB; (2) during 130-110 Ma period, due to the collision between the West Philippines microcontinent and SCB, the compressional tectonic structures were developed in the Changle-Na'ao coastal zone, producing ductile deformation zones. However, the inland of the eastern part of SCB was under a NW-SE extensional tectonic regime; (3) during 105-90 Ma period, a new subduction zone was developed in the SE flank of the West Philippines micro-continent, the subducting slab reached the Changle-Nan'ao tectonic belt, with the possible break-off of slab, the asthenospheric ascent was responsible for the important emplacement of plutonic massifs and dykes. The tectonics of the eastern part of SCB was characterized by a general extensional system in this period. This tectonic pattern has been significantly disturbed by the Oligocene-Eocene opening of the South China sea,and the Miocene shortening of the SCB margin in Taiwan. Of course, this model should be improved by more geological, geophysical and geochemical investigations.
"The Tectonics of China: Data, Maps and Evolution" presents the regional geological and petroleum surveys of China, the author's original tectonic data, and research results of Chinese and international scientists (more than 1500 references) from the last three decades. It examines the main developments of geological evolution, a series of tectonic events in the overall geological history, 13 tectonic maps of the entire continent of Asia in different tectonic epochs, and a general discussion of the main tectonic characteristics of the Chinese continental plate. This book also intensively discusses the Mesozoic-Cenozoic tectonics and intraplate deformations, which control the majority of ore deposits and oil-gas reservoirs and have a tremendous influence on the climates and natural disasters on the continent. Some important tectonic theory problems are discussed, such as the mechanisms of the widespread intraplate deformation, the variation of lithosphere thickness, the existence of mantle plumes, the dynamic mechanisms for global tectonics, and the author's proposed hypotheses on mantle plumes and meteorite impacts. The book is intended for researchers and geologists working at universities, on geological surveys, for mining or petroleum companies, and for graduate students of geology and mineral resources. Tianfeng Wan is Professor at the China University of Geosciences, Beijing, China.
Late Mesozoic extensional structures are widespread in eastern Eurasia (from Transbaikalia region in Russia to inland South China). They constitute the largest crustal extensional province in the world. This thesis selected extensional structures developed in three different tectonic settings in the South China block. Detailed studies including structural geology, anisotropy of magnetic susceptibility and geochronology (zircon and titanite U-Pb, monazite U-Th-Pb, and mica Ar-Ar) were conducted. The expression of these extensional structures is not the same for each area: (1) the Tongbai-Dabie HP/UHP orogenic belt along the northern edge of the South China block was reworked by Cretaceous extensional antiform or metamorphic core complex. Coeval with migmatization and syntectonic magmatism, the extensional regime started at ca. 145 Ma, and approached its climax at ca. 130 Ma that was signaled by removal of the orogenic root. Locally, a late (110-90 Ma) extensional event was also recorded; (2) the Dayunshan-Mufushan batholith intruding the Neoproterozoic Jiangnan orogen is composed of two phases of granitic intrusions with Late Jurassic (ca. 150 Ma) and Early Cretaceous (ca. 132 Ma) ages, respectively. The late pluton emplaced under a NW-SE extensional setting corresponding to the Early Cretaceous crustal thinning process, with a detachment fault developed along its western margin; (3) the Huangling anticline within the Yangtze craton is a nearly N-S striking asymmetric dome formed between the Late Jurassic and Early Cretaceous. The sedimentary cover on the two flanks was involved in a series of oppositely-directed collapse folding and layer-parallel slipping. These examples of Cretaceous extensional structures in different tectonic levels (exhumation of middle-lower crust by strong stretching, syn-tectonic emplacement of granitic pluton with limited stretching, deformation of sedimentary cover under a weak extension) indicates that South China also was involved into the regional extensional regime coeval with the destruction of the North China craton. These results provide first-hand new structural evidence for further discussing the temporal-spatial framework and geodynamic setting of the Cretaceous extensional tectonics on the eastern margin of Eurasia.
This volume provides accounts of up-to-date research by Chinese and international geological teams on key aspects of the tectonic evolution of China and its surrounding areas. The papers describe the formation of the geological terranes that make up this part of east Asia, place constraints on plate tectonic models for their assembly and provide accounts of unique geological feature of the subcontinent.
"Most papers result from a meeting in Beijing in June 2005"--Preface.
The book is a summarization of a part of the field and laboratory work of the Research Laboratory of Structural Geology, Institute of Geology, Chinese Academy of Sciences, from 1963 to 1965. The book is divided into three parts. The first part is the general discussion. The history of tectonic development in Mesozoic and Cenozoic eras in North and South China is divided into stages, and the geodynamic method is applied to analyze the tectonic deformation and the sedimentary facies and lava activities it controls in the various stages, and on the basis of this analysis, several viewpoints are proposed concerning the leading factors in the tectonic development. The second part is separate discussions. The primary characteristics of the Mesozoic and Cenozoic tectonic development in the five major stages in North and South China are investigated. The third part is special discussions. It deals mainly with the division of the Triassic tectonic movement in South China into different stages, the major types of Mesozoic tectonics, the relationship between lava activities and tectonics since the Triassic Period, and the tectonic characteristics of the South China platform. Finally, the litho-chemical characteristics of the Mesozoic volcanic rocks in East China and their relationship to tectonic geology are clarified. (Author).
Anyone studying the geology and tectonics of China and who is not able to read Chinese will need to have a copy of this book: Ceotectonic Evolution of China and a companion copy of the Tectonic Map of China, scale 1:4000,000. Professor Huang Jiqing and his collaborators from the Institute of Geology, Chinese Academy of Geological Sciences have provided the English-speaking earth scientists with an extremely valuable tool that can be used towards understanding the geo b;;y of China. The introductory chapter is necessary to read prior to effective use of the material discussed in other chapters as it clearly presents the philosophy of this school of tectonics. The collaborators of the book acknowledge the important changes have been brough about by the plate tectonics theory but do not fully incorporate these ideas into their discussion. The book and map are testimony to the tremendous amount of geologic work accomplished by Chinese geologists in the past fourty years. As our Chinese collea gues begin to publish more English summaries such as this, it will become apparent to the rest of the world the vast amount of geologic mapping along with supportive stratigraphy and geophysics that has already been accomplished. Nearly all major non Chinese tracts on tectonic synthesis of the world treat China in only a cursory fashio)1 because so little is known of the area. With this text and map, future world tectonic synthesis can no longer afford to leave China out of the picture.
The dynamic mechanism of plate tectonics remains a reasonable theory, but one with shortcomings such as insufficient bases for plate division, unclear plate boundaries, and unclear geological characteristics. This book proposes that the world's continents should not be divided by plates, and that their formation is not due to plate tectonics but rather due to global crustal uplift evolution and sea-land evolution. This proposal is based on the authors' broad theoretical foundation and comprehensive professional knowledge, built up over more than ten years of in-depth research by many scholars on the evolution of the Earth's continents.In this book, many case studies are better explained by global crustal uplift and sea-land evolution. Namely, that the entire continents of the world are indivisible, and the changes of each land block over geological periods resulted from the sea-land changes.The book further develops the original 'geomechanics theory' created by the famous geologist Li Siguang. As a vibrant and highly rigorous work, Prof Li's book offered important theoretical guidance that enriched the global geological community and led to a re-development within geological science. The strong response highlights the significance of geomechanics theory and our theories that build upon it in this book.
The papers in this volume explore the tectonic evolution of south-eastern Asia