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STUDY OF ESR DATING FOR THE BURIAL AGE OF THE FIRST SKULL OF PEKING MAN AND chronological SCALE OF THE SITE

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Chinese Science Bulletin 1991年第17期36卷 1457-1461页

作者：黄培华金嗣炤梁任又陆仲家郑丽珍袁振新方朝萌 Department of Earth and Space Science University of Science and Technology of China Hefei 230026 PRC Institute of Vertebrate Palaeontology and Palaeoanthropology Academia Sinica Beijing 100044 PRC Institute of Atomic Energy Beijing 102413 PRC

Ⅰ. INTRODUCTIONProfessor Pei Wen-zhong (W. C. Pei )discovered the first skull of Peking Man in December of 1929 at Zhoukoudian, 48 km from Beijing. But unfortunately, we do not know the burial age of this skull exact... 详细信息

关键词： ESR dating burial age of the first skull of Peking Man chronological scale of the cave.

NONHYDROCARBON AND NOBLE GAS GEOCHEMISTRY IN NATURAL GAS OF EASTERN CHINA

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Science China Chemistry 1990年第12期33卷 1494-1503页

作者：徐永昌沈平孙明良徐胜 Laboratory of Biogeochemistry and Gasgeochemistry Lanzhou Institute of Geology Academia Sinica Lanzhou 730000 PRC

The isotopic composition of 15 natural gas samples, which were collected from northern Jiangsu Province, south Songliao, Sanshui County of Guangdong Province, have been analysed in terms of δ^(13)C of CO_2 and CH_4, δD of CH_4, δ^(15)N of N_2, ~3He/~4He, ^(40)Ar/^(36)Ar and R/R_A. Based on the isotopic and chemical composition of the natural gas and the geological background of these areas, such aspects as the genesis of nonhydrocarbon gas, geochemical characteristics of noble gases by contrast with the data of Sichuan Province^([1]), the Xinjiang Autonomous Region and the Yaojie Coal Mine of Gansu Province are discussed. It is pointed out that hydrocarbon and nonhydrocarbon gases reservoired in the same stratum may be of different genesis and that the helium of He-rich gas pool of Huangqiao, northern Jiangsu is closely related to the mantle, and is of the mantle degasification. It is an example of commerical gas pool that helium was accumulated in sedimentary beds. The He and CO_2 of Wanjinta at the south Songliao, Huangqiao of northern Jiangsu and Sanshui of Guangdong CO_2 pool, which are located at the area of Cathysian rift valley, have some relationship with the mantle. Like crust- sourced argon, belium also show the chronological accumulating effect.

关键词： nonhydrocarbon gas isotope mantle-derive crust-derive chronological accumulating effect

扬子克拉通西缘康定杂岩中花岗质岩石的成因及其构造意义

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岩石学报 2009年第8期25卷 1883-1896页

作者：刘树文闫全人李秋根王宗起北京大学造山带与地壳演化教育部重点实验室北京大学地球与空间科学学院北京100871 中国地质科学院地质研究所北京100037

扬子克拉通西缘康定杂岩中的片麻状花岗岩主要由英云闪长岩、花岗闪长岩、灰白色细粒二长花岗岩和少量的粉红色粗粒二长花岗岩组成。其中英云闪长岩和花岗闪长岩形成于797～795Ma,灰白色细粒二长花岗岩SHRIMP锆石定年产生一个^(206)Pb/^... 详细信息

扬子克拉通西缘康定杂岩中的片麻状花岗岩主要由英云闪长岩、花岗闪长岩、灰白色细粒二长花岗岩和少量的粉红色粗粒二长花岗岩组成。其中英云闪长岩和花岗闪长岩形成于797～795Ma,灰白色细粒二长花岗岩SHRIMP锆石定年产生一个^(206)Pb/^(238)U权重平均767±24Ma,被解释为该期花岗质岩浆的结晶年龄。英云闪长岩、花岗闪长岩和灰白色细粒二长花岗岩和其中的闪长岩包体表现为右斜式稀土配分模式,具有很高的(La/Yb)_N比值,无Eu异常,在原始地幔标准化的多元素蜘蛛网状图上表现了明显的Nb、Ta、P和Ti负异常。而粉红色粗粒二长花岗岩却表现了平坦的稀土配分模式,具有强烈的负Eu异常和强烈的Nh、Ta、Sr、P和Ti负异常,但是富集大离子亲石元素。所有这些片麻状花岗岩具有ε_(Nd)(t)=-0.57～+5.67,绝大部分样品ε_(Nd)(t)>0。结合地质学、岩石学、地球化学和Sm-Nd同位素特征,康定杂岩中英云闪长岩、花岗闪长岩和灰白色细粒二长花岗岩形成于来自亏损地幔的初生地壳玄武质岩石和相关的杂砂岩在高压条件下的部分熔融,而粉红色粗粒二长花岗岩的岩浆导源于表壳岩低压条件下的部分熔融。结合这些片麻状花岗岩的岩石成因和构造鉴别,表明扬子克拉通西缘康定杂岩中新元古代片麻状花岗岩形成于安第斯型活动大陆边缘。

关键词：扬子克拉通西缘康定杂岩花岗质岩石成因构造意义 Kangding Complex tectonic significance Yangtze Craton 二长花岗岩英云闪长岩片麻状花岗岩花岗闪长岩稀土配分模式 SHRIMP chronological data 细粒部分熔融 tectonic setting negative Sm-Nd

The Rate of Aging of the <i>Dunaliella viridis</i>Teodor. Culture Depends on the Algae Pre-Adaptation to Copper Sulfate Toxic Effect

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Advances in Aging Research 2014年第2期3卷 187-198页

作者： A. I. Bozhkov M. K. Kovaleva N. G. Menzyanova Y. A. Kuznetsova Research Institute of Biology V.N. Karazin Kharkov National University 4 Svobody Sq. Kharkov Ukraine

Two sublines of microalgae Dunaliella viridis Teodor. were obtained: CuS—a subline sensitive to toxic concentration of copper ions and CuR—a subline resistant to toxic concentration of copper ions. The chronological aging of cultures was revealed in increase of DNA (polyploidization) and triacylglycerols (TAG) content in microalgae cells. The adaptation of D. viridis to toxic concentrations of copper ions resulted in formation of an adaptive epygenotype characterized by increased content of carbonylated proteins and decreased content of proline compared to the CuS-subline. The adaptation of D. viridis to toxic concentrations of copper ions resulted in the increase of the rate of chronological aging compared to the CuS-subline. Four subcultures with different rates of transplanting were obtained from each subline. The rate of replicative aging was shown to be dependent on the rate of chronological aging of subcultures (passage rate). The pre-adaptation of D. viridis to toxic concentrations of copper ions was accompanied by increase of accumulation rate of TAG and DNA in cells, which was interpreted as a sign of cellular aging during the progressive passages of the algae culture.

关键词： Microalgae Dunaliella viridis Adaptation to Copper Ions chronological and Replicative Aging Epigenotype

Interannual, decadal and century scale climatic changes revealed by stalagmite records

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Science China Earth Sciences 1998年第4期41卷 416-421页

作者：谭明秦小光刘东生

The stalagmite chronological table is established based on the definition of annual character of microlayers of a stalagmite by comparing the laminated rhythm to natural cyclic processes. Climatic anomalies lasting over ten years and rapid climatic changes such as abrupt changes of mean value, of variability, of trend and of cycles are discovered from the stalagmite chronological table. Stalagmites which record interannual to century scale climatic changes are excellent

关键词： stalagmite chronological table climatic change interannual to century scale.