Marine Ingressive Events Recorded in Epicontinental Sequences:Example from the Cretaceous Songliao Basin of NE China in Comparison with the Triassic Central Europe Basin of SW Germany     

WANG Pujun  LIU Wanzhu  YIN Xiuzhen 《东北亚地学研究》2002,(1)

Songliao Basin is filled predominantly with continental facies sediments including alluvial fan, fluvial plain, fan delta , lacustrine delta, shore ?shallow lacustrine, beach salty flat, semi - deep to deep lacustrine, subaqueous gravity flow, lacustrine swamp and pyroclastic sediments. However, some event units were formed during lake - marine linking periods of the Mid - Cretaceous in the basin, which include black shales with high values for salinity ( Sr/Ba) , alkalinity (Ca Mg)/ (Si Al) , reducibility ( Ni Zn)/Ga and sulfide sulfur as well as heavy isotopes. The Breitenholz ?section to be represen-ted for facies comparison with the Cretaceous evaporitic series in Northeast China is localized in Southwest Germany. Stratig-raphically it belongs to the Crabfeld Formation of Keuper of the Germanic Triassic corresponding to Ladinian - Camian of the international reference scale, and is generally called Lower Gipskeuper. The Germanic Triassic was deposited in the epiconti-nental(cratonic) central Euro  相似文献   

Tanlu Fault Zone and Gold Ore Metallogenesis     

SHEN Yuanchao  ZENG Qingdong  LIU Tiebing 《东北亚地学研究》2002,(1)

Tanlu Fault Zone (TFZ) is a large NE trending deep fracture system in East China and is about 2500 km long. It extends from the south of Lujiang to Tancheng, and passes through the Bohai Sea and continues to the north, where it branches into Yilan ?Shulan Fault and Dunhua ?Mishan Fault. TFZ is a long lasting huge deep - rooted lithospherical fault system with different characteristics in different parts and at different periods of its evolution. TFZ also controls the distribution and occur-rences of many superlarge, large, middle and small sized gold ore deposits, e. g. Jiapigou, Haigou, Xiaoxihancha and Ciwei-gou gold deposits in Northeast China; Linglong, Jiaojia, Sanshandao, Taishang, Xincheng, Rushan, and Pengjiakuang gold deposits in Jiaodong Peninsula of Shandong Province; and Guilaizhuang and Yinan in Western Shandong Province.  相似文献   

EVALUATION OF ECOLOGICAL SERVICES OF JILIN PROVINCE, NORTHEAST CHINA   总被引：2，自引：1，他引：1  

YU Shu-xia  SHANG Jin-cheng  GUO Huai-cheng 《中国地理科学(英文版)》2004,14(3):215-220

1INTRODUCTIONEcosystem services can be divided into two major cat-egories, one is system function, and the other is sys-tem services and goods provision, which provide not only materials such as food and medicine, but also support and maintenance of whole system. Ecological services contribute to the whole economic system, both directly and indirectly, and consequently repre-sent parts of the total value of our economy system (COSTANZA etal., 1997; GUO etal., 2001). Sustainable d…  相似文献   

Stellar SiO 86GHz Maser Observations of IRAS Point Sources     

Fu Haowen  Su Bumei  Li Yongsheng  Ji Kaifan 《天文研究与技术》1999,(Z1)

1　ＩｎｔｒｏｄｕｃｔｉｏｎＳｉＯ ,Ｈ2 ＯａｎｄＯＨｍａｓｅｒｅｍｉｓｓｉｏｎｓａｒｅｃｏｍｍｏｎｐｈｅｎｏｍｅｎａａｓｓｏｃｉａｔｅｄｗｉｔｈｔｈｅｃｉｒｃｕｍｓｔｅｌｌａｒｓｈｅｌｌｓｏｆｌａｔｅｔｙｐｅｓｔａｒｓ .ＳｉＯｍａｓｅｒｅｍｉｓｓｉｏｎｓｈａｖｅｂｅｅｎｄｅｔｅｃｔｅｄｆｒｏｍｓｅｖｅｒａｌｈｕｎｄｒｅｄｓｏｆｌａｔｅｔｙｐｅｓｔａｒｓｏｆｓｐｅｃｔｒａｌｔｙｐｅＭ 4ｏｒｌａｔｅｒ.ＳｉＯｍａｓｅｒｉｓｃｏｎｓｉｄｅｒｅｄｔｈｅｍｏｓｔｐｒｅｖａｌｅｎｔｍａｓｅｒｉｎｌａｔｅｔｙｐ…  相似文献   

Solar Stokes Spectrum Observation at Yunnan Astronomical Observatory     

Qu Z.Q.    Chen X.K.  Zhang X.Y.  Gu X.M.  Feng Y.M.  Zhong S.H. 《天文研究与技术》1999,(Z1)

1　ＳｉｇｎｉｆｉｃａｎｃｅｏｆＳｏｌａｒＳｔｏｋｅｓＳｐｅｃｔｒｕｍＯｂｓｅｒｖａｔｉｏｎＤｕｅｔｏｔｈｅｄｅｖｅｌｏｐｍｅｎｔｉｎｏｂｓｅｒｖｉｎｇｉｎｓｔｒｕｍｅｎｔ,ｔｈｅｃｏｎｃｅｐｔｏｆｓｏｌａｒｓｐｅｃｔｒｕｍｓｈｏｕｌｄｂｅｇｅｎｅｒａｌｉｚｅｄ .Ｉｎｔｈｅｐａｓｔ,ｉｔｉｓｏｎｌｙａｓｓｉｇｎｅｄｔｏｔｈｅｏｒｄｉｎａｒｙｏｒｕｎｐｏｌａｒｉｚｅｄｓｐｅｃｔｒｕｍｒｅｃｏｒｄｉｎｇｔｈｅｗａｖｅｌｅｎｇｔｈ ｄｉｓｔｒｉｂｕｔｅｄｉｎｔｅｎｓｉｔｙｏｆｔｈｅｃｏｎｔｉｎｕｕｍａｎｄ…  相似文献   

An Orbital Period Study of the Contact Binary CK Bootis     

Qian Shengbang 《天文研究与技术》1999,(Z1)

1　ＩｎｔｒｏｄｕｃｔｉｏｎＣＫＢｏｏｗａｓｄｉｓｃｏｖｅｒｅｄａｎｄｃｏｎｆｉｒｍｅｄｔｏｂｅａｃｏｎｔａｃｔｂｉｎａｒｙｂｙＢｏｎｄ ( 1 975 ) .Ａｆｔｅｒｉｔｓｄｉｓ ｃｏｖｅｒｙｔｈｅｓｙｓｔｅｍｉｓｏｂｓｅｒｖｅｄｆｒｅｑｕｅｎｔｌｙ (ｅ .ｇ .Ａｓｌａｎ ,1 978;ＡｓｌａｎａｎｄＤｅｒｍａｎ ,1 986 :ＰａｊｄｏｓｚａｎｄＺｏｌａ ,1 987;Ｋｒｚｅｓｉｎｓｋｉｅｔａｌ.,1 991ａｎｄＪｉａｅｔａｌ.,1 992 ) .Ａｓｒｅｐｏｒｔｅｄｂｙｓｅｖｅｒａｌａｕｔｈｏｒｓ,ｔｈｅｌｉｇｈｔｃｕｒｖｅｏｆｔｈｅｓｙ…  相似文献   

SEISMIC RECORDING CHARACTER OF JCZ-1 ULTRA BROADBAND DIGITAL SEISMOMETER     

Shao Zhongming  Li Feng 《大地测量与地球动力学》1999,19(1):P1

分析讨论了  相似文献   

论     

Liu Tianhai  Wang Guangyu 《大地测量与地球动力学》1999,19(2):2

针对  相似文献   

GENDER AND TECHNOLOGY DISSEMINATION IN RURAL YUNNAN     

Wang Wanying 《云南地理环境研究》1999,(Z1)

Ｔｈｅｅｆｆｅｃｔｉｖｅｎｅｓｓｏｆｔｅｃｈｎｏｌｏｇｙｅｘｔｅｎｓｉｏｎｒｅｌｉｅｓｎｏｔｏｎｌｙｏｎｈｏｗａｄｖａｎｃｅｄａｎｄａｐｐｒｏ－ｐｒｉａｔｅｔｅｃｈｎｏｌｏｇｉｅｓａｒｅ,ａｌｓｏｏｎｔｈｅｍｅａｎｓｏｆｄｉｓｓｅｍｉｎａｔｉｏｎ．Ｇｅｏｇｒａｐｈｉｃａｌｅｎｖｉｒｏｎｍｅｎｔ,ｌｅｖｅｌｓｏｆｅｃｏｎｏｍｉｃｄｅｖｅｌｏｐｍｅｎｔ,ｃｕｌｔｕｒａｌｃｈａｒａｃｔｅｒｉｓｔｉｃｓａｎｄｇｅｎｄｅｒｃｈａｒａｃｔｅｒｉｓｔｉｃｓ,ｉｎｆｌｕ－ｅｎｃｅｔｈｅｃｈｏｉｃｅｏｆｔｈｅｍｅ…  相似文献   

乌鲁木齐城市地域结构问题初探   总被引：3，自引：0，他引：3  

黄 《干旱区地理》1999,22(4):35-41

对乌鲁木齐城市地域结构各种特征的分析,发现此城市地域具有的历史和民族特征及其现代城市特征,并针对乌鲁木齐城市地域结构和发展中出现的问题提出若干解决对策。  相似文献