|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Field Relationships,Geochemistry,Zircon Ages and Evolution of a Late Archaean to Palaeoproterozoic Lower Crustal Section in the Hengshan Terrain of Northern China显示文摘The Hengshan complex forms part of the central zone of the North China Craton and consists predominantly of ductilely-deformed late Archaean to Palaeoproterozoic high-grade, partly migmatitic, granitoid orthogneisses, intruded by mafic dykes of gabbroic composition. Many highly strained rocks were previously misinterpreted as supracrustal sequences and represent mylonitized granitoids and sheared dykes. Our single zircon dating documents magmatic granitoid emplacement ages between 2.52 Ga and 2.48 Ga, with rare occurrences of 2.7 Ga gneisses, possibly reflecting an older basement. A few granitic gneisses have emplacement ages between 2.35 and 2.1 Ga and show the same structural features as the older rocks, indicating that the main deformation occurred after ~2.1 Ga. Intrusion of gabbroic dykes occurred at~1920 Ma, and all Hengshan rocks underwent granulite-facies metamorphism at 1.88-1.85 Ga, followed by retrogression, shearing and uplift.We interpret the Hengshan and adjacent Fuping granitoid gneisses as the lower, plutonic, part of a late Archaean to early Palaeoproterozoic Japan-type magmatic arc, with the upper, volcanic part represented by the nearby Wutai complex. Components of this arc may have evolved at a continental margin as indicated by the 2.7 Ga zircons. Major deformation and HP North China Craton collided to form the Trans-North China orogen. Shear zones in the Hengshan are interpreted as major lower crustal discontinuities post-dating the peak of HP metamorphism, and we suggest that they formed during orogenic collapse and uplift of the Hengshan complex in the late Palaeoproterozoic (<1.85 Ga). | A. KRONER S.A. WILDE P.J. O'BRIEN LI Jianghai C.W. PASSCHIER N.P. WALTE LIU Dunyi | 2005 | Acta Geologica Sinica(English Edition)2005，79，5： | 91 |
| 2 | Tectonic Evolution of an Early Precambrian High-Pressure Granulite Belt in the North China Craton显示文摘A large-scale high-pressure granulite belt (HPGB), more than 700 km long, is recognized within the metamorphic basement of the North China craton. In the regional tectonic framework, the Hengshan-Chengde HPGB is located in the central collision belt between the western block and eastern block, and represents the deep crustal structural level. The typical high-pressure granulite (HPG) outcrops are distributed in the Hengshan and Chengde areas. HPGs commonly occur as mafic xenoliths within ductile shear zones, and underwent multipile deformations. To the south, the Hengshan-Chengde HPGB is juxtaposed with the Wutai greenstone belt by several strike-slip shear zones. Preliminary isotopic age dating indicates that HPGs from North China were mainly generated at the end of the Neoarchaean, assocaited with tectonic assembly of the western and eastern blocks. | Alfred KRONER P.O.BRIEN | 2000 | Acta Geologica Sinica(English Edition)2000，74，2： | 11 |
| 3 | Carboniferous Alaskan-type complex along the Sino–Mongolian boundary,southern margin of the Central Asian Orogenic Belt显示文摘We present zircon ages and geochemical data for the Hongshishan Carboniferous Alaskan-type mafic–ultramafic complex exposed in the Beishan area along the Sino–Mongolian boundary, southern margin of the Central Asian Orogenic Belt. This complex mainly consists of dunite,harzburgite, lherzolite, wehrlite, and gabbro, which intrudes Early Carboniferous volcanic rocks and reveals a zoned structure. Zircons of a gabbro sample yielded a 206Pb/238 U age of 357 ± 4 Ma, reflecting the time of Early Carboniferous magmatism. Zircon ages were also obtained for an andesite(322 ± 3 Ma) and a basaltic andesite(304 ± 2 Ma).High initial Nd isotope whole-rock values suggest that the Hongshishan gabbro [e_(Nd(t))= +9.6-+10.2] and basalt[eNd(t)= +10.0-+10.8] were derived from a depleted mantle source. Slightly lower eNd(t)values for the ultramafic rocks [eNd(t)= +8.5-+8.7] suggest some interaction of the parental magma with the continental crust. In contrast, the Late Carboniferous Quershan samples in this area represent subduction-related arc volcanic rocks with Adakite-like compositions. The early Carboniferous Hongshishan Alaskan-type complex was interpreted to represent the remnants of a magma chamber that crystallized at the base of a mature island arc, whereas the Quershan island arc volcanic rockssuggest the resurrection of the subduction process after arccontinent collision and uplift of the roots of the arc. | Yuruo Shi Linlin Li Alfred Kroner Jing Ding Wei Zhang Zengbao Huang Ping Jian | 2017 | Acta Geochimica2017，36，2： | 6 |
| 4 | Age and Origin of Paleogene Granitoids from Western Yunnan Province,China:Geochemistry,SHRIMP Zircon Ages,and Hf-in-Zircon Isotopic Compositions显示文摘We report geochemical data, SHRIMP zircon ages and Hf-in-zircon isotopic compositions for Cenozoic granitoids from major fault systems in the Tethyan belt in western Yunnan Province, southwestern China.Four magmatic pulses occurred in the Paleogene, namely at ca.57 Ma, ca.50 Ma, 45–40 Ma, and 38–34 Ma.Early magmatism of this episode(57–50 Ma) produced S-type granites whose zircons yielded εHf(t) values of-5.0 to-0.3.In contrast, late magmatism of this episode reflects heterogeneous sources.Zircons from a granite porphyry along the Ailaoshan-Red River fault system have slightly positive εHf(t) values suggesting derivation from relatively young crust and/or a juvenile source.However, zircons from a granite along the Gaoligong fault system have strongly negative εHf(t) values and suggest derivation from a Paleoproterozoic crustal source.The composition of the granitoids varies with age(from ca.57 Ma to ca.34 Ma) from peraluminous to metaluminous and also suggests a change from syn-collisional to late-orogenic tectonic setting.A new tectonic model, impacting lithospheric wedge(ILW) is shown for the origin of Paleogene granitoids in this paper. | SHI Yuruo WU Zhonghai Alfred KRoNER FAN Taoyuan YANG Zhenyu | 2015 | Acta Geologica Sinica(English Edition)2015，89，5： | 3 |
| 5 | 恒山中段新太古代高压麻粒岩区的构造特征显示文摘恒山中段高压麻粒岩区是华北克拉通新太古代高压麻粒岩最好的露头区之一,北部为强烈重熔的灰色片麻岩区,构造样式以穹窿、近水平韧性剪切带为主,中部以近东西向的右旋走滑剪切带与南部变形变质程度相对较低的岩石单元相接,后者主要的岩石类型为均匀的英云闪长质片麻岩和变质辉绿岩墙。高压麻粒岩以透镜体形式出现在北部。本文通过对恒山高压麻粒岩区构造特征和构造样式的分析,认为高压麻粒岩区主要经历了4期构造变形:①高压麻粒岩透镜体里的逆冲型韧性剪切变形和走滑剪切变形;②向南或南西的伸展变形;③右行走滑剪切;④向东或南东伸展变形。对恒山地区的高压麻粒岩的出露起决定作用的是两次伸展构造运动。 | 黄雄南 李江海 A KRONER | 2003 | 地质论评2003，49，2： | 3 |
| 6 | Constraints on sedimentary ages of the Chuanlinggou Formation in the Ming Tombs, Beijing, North China Craton: LA-ICP-MS and SHRIMP U–Pb dating of detrital zircons显示文摘Detrital zircons in five sedimentary samples,MC1 to MC5, from the bottom of the Chuanlinggou Formation in the Ming Tombs District, Beijing, were dated with the LA-ICP-MS and SHRIMP U–Pb methods. Age spectra of the five samples show a major peak at 2500 Ma and a secondary peak at 2000 Ma, suggesting their provenances were mainly from the crystalline basement of the North China Craton and the Trans-North China Orogen.The youngest zircon has an age of 1673 ± 44 Ma, indicating that the Chuanlinggou Formation was deposited after this age. From sample MC4 to MC5, lithology changed from a clastic rock(fine-grained sandstone) to a carbonate rock(fine-grained dolomite), suggesting that the depositional basin became progressively deeper. The age spectrum of sample MC5 shows a major peak at 2500 Ma and a secondary peak at 2000 Ma. Sample MC4, which is stratigraphically lower than sample MC5, only had one peak at 2500 Ma. We conclude that there was a transgressive event when sediments represented by MC5 was deposited, and seawater carried ca. 2000 Ma clastic materials to the basin where the Chuanlinggou Formation was deposited, leading to the addition of ca. 2000 Ma detritus.Our research indicates that the source area for the sediments became more extensive with time. We conclude thatthe Chuanlinggou Formation in the Ming Tombs District was deposited in a low-energy mud flat sedimentary environment in the inter-supra tidal zone because it is mainly composed of silty mudstone and fine-grained sandstone with relatively simple sedimentary structures. | Jing Ding Yuruo Shi Alfred Kroner J. Lawford Anderson | 2018 | Acta Geochimica2018，37，2： | 3 |
| 7 | Herbal medicines as diuretics:A review of the scientific evidence显示文摘 | Wright C I Van-Buren L Kroner C I | 2007 | Journal of Ethnopharmacology2007，114，1： | 1 |
| 8 | Multivariate simultaneous generalized ARCH 显示文摘 | Engle R F Kroner K F | 1995 | Econometric Theory1995，11，1： | 1 |
| 9 | ARCH modeling in finance显示文摘 | Bollerslev T Chou R Kroner K | 1992 | Journal of Econometrics1992，，52： | 1 |
| 10 | The relationship between Alzheimer's disease and diabe- tes: Type 3 diabetes显示文摘 | Kroner Z | 2009 | Altem Med Rev2009，14，4： | 1 |
| 11 | Multivariate simultaneous generalized ARCH models显示文摘 | Engle R F Kroner K F | 1995 | Econometric Theory1995，11，1： | 1 |
| 12 | Multivariate simultaneous generalized ARCH显示文摘 | Engle R F Kroner K F | 1995 | Econometric Theory1995，11，1： | 1 |
| 13 | Gender biases in textbooks for introductory psychology and human development显示文摘 | Peterson S Kroner T | | 0，，01： | 1 |
| 14 | Simultaneous generalized ARCH显示文摘 | Engle R F K F Kroner | 1995 | Econometric Theory1995，11，： | 1 |
| 15 | Zur Plastischen Verformung des Vielkristalls显示文摘 | Kroner E | 1961 | Acta Met1961，9，： | 1 |
| 16 | Time-varying distributions and dynamic hedging with foreign currency futures 显示文摘 | Kroner and Sultan | 1993 | Journal of Financial and Quantiative Anlysis1993，，28： | 1 |
| 17 | The epidemiology of fractures of the proximal humerus 显示文摘 | Lind T KrOner K Jensen J | 1989 | Arch Orthop Trauma Surg1989，108，5： | 1 |
| 18 | Multivariate simultaneous generalized ARCH 显示文摘 | Engle R Kroner K | 1995 | Econometric Theory1995，11，： | 1 |
| 19 | Early Permian plutons from the northern North China Block: constraints on continental arc evolution and convergent margin magmatism related to the Central Asian Orogenic Belt显示文摘 | Zhang S H Zhao Y Kroner A | 2009 | International Journal of Earth Sciences2009，98，6： | 1 |
| 20 | ARCH Modeling in Finance 显示文摘 | BOLLERSLEV T CHOU R KRONER K | 1992 | Journal of Econometrics1992，，52： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员