全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
地质通报  2008 

冀东马兰峪背斜南翼与西部倾伏端盖层变形特征及其构造意义

, PP. 1698-1708

Keywords: 马兰峪复背斜,厚皮褶皱构造,滑脱褶皱,变质核杂岩,燕山中部

Full-Text   Cite this paper   Add to My Lib

Abstract:

燕山中部冀东遵化、迁西、青龙一带以太古宇深变质结晶岩系为核部的东西向构造形迹长期以来被认为是一个复式背斜构造,近年来又有学者提出它是一个中生代变质核杂岩。这2种不同认识涉及到华北克拉通北部中生代区域大地构造演化和稳定克拉通内部大型基底结晶岩系的剥露机制问题。对马兰峪背斜南翼和西部倾伏端盖层岩系开展的详细构造研究表明,变形总体表现为连续的褶皱变形及伴生的逆冲构造;构造样式表现为基底卷入式的厚皮构造与盖层内部软弱岩系控制的薄皮构造共存的特征;变形机制表现为顺层挤压导致的纵弯弯曲和相关的断裂构造;近南北向的缩短率介于16%~27%之间。盖层岩系中未发现变质核杂岩构造模型所预期的系列高角度正断层。基底与盖层不整合面接触带尽管在后期构造变形过程中曾经发生过局部的差异性滑动,但并不是造成大规模构造剥蚀和地壳柱切失的剥离断层。因此,冀东马兰峪背斜不是中生代的变质核杂岩,而是水平挤压背景下基底结晶岩系与盖层共同卷入纵弯褶皱变形的厚皮式褶皱构造。

References

[1]  Mederos S, Tikoff B, Bankey V, Geometry, timing, and continuity of the Rock Springs uplift, Wyoming, and Douglas Creek arch, Colorado: Implications for uplift mechanisms in the Rocky Mountain foreland, U.S.A. [J]. Rocky Mountain Geology, 2005, 40 (2): 167-191.
[2]  马寅生 曾庆利 宋彪 等.燕山中段盘山花岗岩体锆石SHRIMP U-Pb年龄测定及其构造意义[J].岩石学报,2007,23(3):547-556.
[3]  赵越.燕山地区中生代造山运动及构造演化[J].地质论评,:.
[4]  Cui Shengqin. On the Mesozoic and Cenozoic intracontinental orogensis of the Yanshan area, China[C]. Proc. 30th Int\\'l Geol. Conger., 1997,14:277-292.
[5]  Gregory A Davis, Zheng Yadong, Wang Cong, et al. Mesozoic tectonic evolution of the Yanshan fold and thrust belt, with emphasis on Hebei and Liaoning provinces, northern China[J]. Geological Society of American Memoir, 2001, 194: 171-197.
[6]  Shuan-Hong Zhang, Yue Zhao, Biao Song, et al. Carboniferous granitic plutons from the northern Margin of the North China block: implications for a late Palaeozoic active continental margin[J]. Journal of the Geological Society, London, 2007, 164:451-463.
[7]  Rodgers John. Chains of basement uplifts within cratons margional to orogenic belts[J]. American Journal of Science, 1987, 287:661-692.
[8]  Rodgers John. Lines of basement uplifts within the external parts of orogenic belts[J]. American Journal of Science, 1995, 295:455-487.
[9]  Davis G H, Coney P J. Geological development of the Cordilleran metamorphic core complexes [J]. Geology, 1979, 7: 120- 124.
[10]  Peter Coney. Cordillera metamorphic core complexes: an overview [C]. GSA Memoir, 1980, 153: 7-31.
[11]  Davis G H. Shear-zone model for the origin of metamorphic core complexes[J]. Geology, 1983,11: 342-347.
[12]  Lister G S, Davis G A. The origin of metamorphic core complexes and detachment faults formed during Tertiary continental extension in the northern Colorado River region, U. S. A.IJ]. Journal of Structural Geology, 1989,11(1/2):65-94.
[13]  牛树银 许传诗 国连杰 等.太行山变质核杂岩构造及成因模式[J].河北地质学院学报,1994,17(1):43-53.
[14]  牛树银 陈路 许传诗.太行山区地壳演化及成矿规律[M].北京:地震出版社,1994.
[15]  雷世和 胡胜军.河北阜平,赞皇变质核杂岩构造及成因模式[J].河北地质学院学报,:.
[16]  秦正永.燕山地区与变质核杂岩―伸展构造有关的金,银矿找矿远景探讨[J].前寒武纪研究进展,:.
[17]  牛树银 孙爱群 李红阳.冀东幔枝构造外围主拆离滑脱带控矿的研究进展[J].地质论评,2001,47(6):595-596.
[18]  陈先兵.冀东马兰峪变质核杂岩控矿的初步认识[J].有色金属矿产与勘查,:.
[19]  傅朝义.河北省变质核杂岩[J].地质找矿论丛,:.
[20]  孙冀凡 牛树银 曾垣荣 等.幔枝构造外围主拆离带型金矿特征--以尖宝山金矿为例[J].内蒙古地质,2001,(1):16-23.
[21]  肖成东 杨伦 等.冀东变质核杂岩中银金矿床地质地球化学特征[J].北京大学学报:自然科学版,:.
[22]  孙爱群 牛树银 李红阳.冀东"长城式"金矿的成因探讨[J].地球学报,2002,38(2):435-442.
[23]  刘俊来 关会梅 纪沫 等.华北晚中生代变质核杂岩构造及其对岩石圈减薄机制的约束[J].自然科学进展,2006,16:21-26.
[24]  Yan Danping. Mesozoic extensional structures of the Fangshan tectonic dome and their subsequent reworking during collisional accretion of the North China Block[J]. Journal of the Geological Society,London, 2006,163:127-142.
[25]  王涛 郑亚东 张进江 等.华北克拉通中生代伸展构造研究的几个问题及其在岩石圈减薄研究中的意义[J].地质通报,2007,26(9):1154-1166.
[26]  李廷栋.中国岩石圈三维结构专项研究主要进展和成果[J].中国地质,2006,33(4):689-699.
[27]  葛肖虹.华北板内造山带的形成史[J].地质论评,:.
[28]  Chen A. Geometric and kinematic evolution of basement-cored structures: intraplate orogenesis within the Yanshan Orogen, northem China[J]. Tectonophysics, 1998, 292: 17-42.
[29]  张长厚 吴淦国 徐德斌 王根厚 孙卫华.燕山板内造山带中段中生代构造格局与构造演化[J].地质通报,2004,23:864-875.
[30]  张新虎 宋鸿林.论河北省兴隆一带东西向走滑断裂系统[J].中国区域地质,:.
[31]  张长厚 宋鸿林 等.燕山板内造山带中段近东西向中生代右行走滑构造系统[J].地球科学:中国地质大学学报,:.
[32]  张长厚 吴淦国 王根厚 张维杰 宋鸿林.冀东地区燕山中段北西向构造带:构造属性及其年代学[J].中国科学:D辑,2004a,34(7):600-612.
[33]  Stone D S. Baseme involved thrust generated folds as seismically imaged in the subsurface of the central Rocky Mountain foreland[C]. Geol. Soci. Am. Special Paper, 1993, 280:271-318.
[34]  Shankar Mitra. Fold-accommodation faults[J]. AAPG Bulletin, 2002, 86(4): 671-693.
[35]  Erslev E A. Trishear fault propagation folding[J]. Geology, 1991, 19: 617-620.
[36]  Allmendinger R. Inverse and forward numerical modeling of trishear fault-propagation folds[J]. Tectonics, 1998, 17(4): 640-656.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133