| 多旋回构造运动与含油气盆地 |
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| 引用本文：朱夏.1984.多旋回构造运动与含油气盆地[J].地球学报,6(2):197-210. |
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| 中文摘要:<正> 四十年代初期,黄汲清先生完成了《中国主要地质构造单位》(以下简称“单位”)的重要著作,为多旋回地壳运动理论奠定了基础。1981年都城秋穗在回顾中称之为“关于东亚构造研究的历史上最有划时代意义”的著作。新中国成立后,这一理论又不断有了新的发展。继“多轮回的造山运动是中国大地构造的特征”这一著名论断之后,黄汲清先生在一系列论文中又强调指出:“地槽发育的多旋回性不是像某些人所设想的那种地质作用的简单重复，而是一些具有规律性序次的有方向性的螺旋式的演化过程。” |
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| THE POLYCYCLIC TECTONIC THEORY AND THE EVOLUTION OF PETROLIFEROUS BASINS |
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| Abstract:Some of the author's opinions during the past years concerning the tectonic evolution of China's petroliferous basins are, bound up with or inspired by the polycyclic tectonic theory founded by Prof. Huang Jiqing. In this paper the following points are discussed: 1. The preparatory stages of the Protoplatform, including the aulacogens on some early-stabilized cratons(e. g. the Sino-Korean) and the sedimentary depressions on others whose mobility was persisted to a much later time(e. g. the Yangtze), were also developed polycyclicly and their potentiality of oil and gas resources could not be overlooked. 2. The Mongolian geosynclinal foldbelts are intercontinental geosynclines, different in tectonic essentials from marginal geosynclines. Though small "oceanic basins" had existed here and there when the Protoplatform was disintegrated at different periods, the cycle of appearing of the oceanic crust, however, was short in time and restricted in space (Miyashiro). The opening and closing of the geosynclines behaved accordion-like in each cycle; and the uplifting and subsiding of the platforms with transgressions and regressions of seas were in tune with the geosynclines. It is under this geosyncline-platform tectonic regime that many Paleozoic petroliferous basins were developed polycyclicly within the platform or bordering the geosyncline. The author has proposed a classification scheme for them. 3. Prof. Huang's Pal-Asia of the late Variscan cycle is also related to the global tectonic event of the formation of Pangea B of Morel. The tectonic development from Late Carboniferous through Permian to Early Triassic (sometimes even to Early Jurassic), called by the writer "the transitional stage", though relatively short in time-span and relatively calm in regard to orogenesis and taphrogenesis as Prof. Huang pointed out, was, however,marked by the major transcurrent movements and the paradigm change of global thermal regime. The development of collapse basins (of which the Junggar is an example) on the Variscan foldbelts and the relative transgressive and extensile features on their borderlands and on the platforms are important factors in the assessment of Late Paleozoic-Early Mesozoic oil and gas basins. 4. Prof. Huang has stated that the Tethys was also developed polycyclicly since the Late Paleozoic and has given a clear picture of the "suture lines" with ophiolites from the south of the Kunlun to the Himalayas and their correspondent features in the western parts of Sichuan and Yunnan. In Prof. Huang's scheme each suture line is accompanied by a foldbelt on its southern side and with successively younger age to the south. In the writer's opinion, the thick marine sediments of these foldbelts may represent the passive margins of the Tethys oceanic crust when it was spreading asymmetrically in each cycle of development. In this respect, they should not be excluded from the future targets of oil and gas prospecting, although their state of deformation is still very little known to us. 5. Since the Indosinian movement, the Pal-Asia, had suffered the redeformation of two tectionc "forms" named by Prof. Huang as the Marginal Pacific and the Tethys-Himalayas. However, the "domain" or the "sphere of influence" of either "form" may interfere each other. For example, the closing of the Tethys could have induced tectonic deformations far to the east through the strike-slip movement of some major faults which existed previously in the mosaic of Pal-Asia. In other respect, the intensive tectonic and magmatic activities of SE China during the Indosinian and the early Yanshanian cycles could not be attributed solely to the movement of the Pacific Plate, because the subduction of the latter in this area began only at a much later time. 6. The redeformation of the tectonic pattern of Pal-Asia, or the "diktyogenese"called by the writer, took place polycyclicly in Mesozoic and Cenozoic. |
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