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The research on micro-fauna and carbon, oxygen,strontium isotopes and magnetic susceptibility reveals that the signals of globalPaleocene/Eocene boundary event are well recorded in the Gamba region.

本文对剖面各个层位生物群,界线附近的碳、氧、锶稳定同位素以及磁化率进行了研究,研究成果显示,全球界线事件在西藏南部岗巴地区具有明显的影响。

The study on this area may provide good information about the late evolutionary history and closing age of the Tibet-Tethys remnant sea. In this work, a great number of microfossils have been found and identified. Study on the microfossils (especially planktonic foraminifera) indicates:(1) the youngest marine bed in Tibet is represented by the top of the Sandstone-shale Member of the Zhepure Formation that occurs in the Zongpuxi Section of the Gamba area, and is of the early Late Eocene age. The age stands for the final closing of the Tibet-Tethys;(2) The age of the youngest marine bed in Gamba is correlative with, or more or less younger than that of the Tingri region. Both are referred to early Priabonian.

对岗巴-定日地区内始新世地层剖面作了极为详细的研究工作,发现并鉴定了数量较为丰富的微体化石,在此基础上对西藏特提斯晚期沉积环境的演变进行了较为详细的分析,认为岗巴地区遮普惹组砂页岩段的时代与定日遮普惹组砂页岩段的时代相同或略晚于后者,两者基本上属同期异相沉积,含相同的浮游有孔虫Morozovella spinulosa-Acarinina bullbrooki组合;藏南最高海相层-遮普惹组砂页岩段顶部的时代应为晚始新世Priabonian早期,它代表着西藏-特提斯海在藏南最终消亡的时间。

The LMI Ripple Gauge was designed to be a high accuracy surface profiling gauge which was originally developed for Boeing to measure ripples in the outer skin of aircraft.

LMI纹波计被设计成一个高精度表面剖面测量产品,最初是为波音公司开发的,测量飞机外壳的波纹。

The validity and the general applicability of the above methods and the program developed by the author are verified by the results of the reliability-based optinum design of real midship cross section.

通过对实际船舯剖面的可靠性优化设计,证明了上述方法和作者所开发的计算机程序的有效性和通用性。

A new computer procedure for generating section line has been developed and implemented.

本文主要介绍一种初步研制成功的生成剖面线的计算机新程序。

The mapping of Geophysical profile is a necessary link of data processing.

物探剖面的绘制是物探数据处理过程中的必要环节之一。

To study the spatial variability of the sandy desertification soil on the Erdos Plateau, the water content of top soil(0~30cm) under different landforms was measured, and analysed by geostatics methools; and; each layer's water content was measured on some typical soil profiles along the landform section.

为了研究鄂尔多斯夏初不同地形土壤水分的空间变异规律,本试验在鄂尔多斯高原几种地形的沙质荒漠化土壤上,用时域反射仪测定表层土壤(0~ 30 cm)的含水量,对表层土壤水分分布特征进行分析;在不同地形部位选择典型土壤剖面,测定各层土壤含水量。

It is shown from the analysis results that in order to meet the requirement that the calculated geostrophic flow results can reflect the practical current profile structure, it is practicable to select the 700 m level as level of no motion in case of water depth greater than 700 m and to select the bottom boundary as level of no motion in calculating the geostrophic flow.

结果表明,为使计算结果可以反映实际的流速剖面结构,当水深大于700 m和小于700 m时可分别选取700 m层和底边界作为地转流动力计算零流面。

The study has shown:(1) With increasing sediment depth and the woody giblets, the total organic carbon, the extraction of benzene , the total humic acids and the unhydrolyte are enhanced, while the hydrolyte is decreasing.(2) According to the GC-MS analysis, n-alkane,n-alkan-2-ones and n-alkanones are composed mainly of long-chains,such a result is thought to be characteristic of a herbaceous input from 2300a.B.P. n-alkanones exist in the samples may be considered as the evidence of microorganisms activity.(3) It is showed that the lipids is more sensitive to the climate change than the floristic. The proxy of the pollen spore of the peat stratum is different from the normal environment proxy. It is one of the main reasons that the sensitivity difference of the bog vegetation reacting to the climate isn't accordant with the log of the fat molecule fossil and biology fossil.(4) The transformation of the peat organic carbon is under the influence of temperature,acidity,organic material constituting, etc, and it showed the up-trend with the depth. In the short-term scale, the conversion of the peat organic carbon is effected by seasonal water,regional climate and vegetations; while in the long-term scale, it is controlled mainly by the climate.(5) According to the comparing the orderliness of organic compound,vegetation giblets with the depth to the characteristics of the peat molecule fossil with the section, in the development of this peatmire, 1500a B.P(210cm)is regard as the borderline of the late Holocene, the keynote of the front period is warm with several cold fluctuations, and the trend of the back period is dry and cold although there were several fluctuations.

研究表明:(1)随深度的增高及植物残体中木本残体的增多,总有机碳、苯萃取物、总腐植酸、不被水解物含量逐渐增高,而易水解物含量减少;(2)GC- MS分析显示,正构烷烃,直链烷基2-酮和正烷醇均以长链组分为主,揭示了该泥炭柱剖面2347a.B.P的母源输入以草本植物为主;甲基酮类和短链正烷醇的存在是微生物活性很大的生物证据;(3)通过有机分子标志物与孢粉、植物残体等指标的对比研究表明:脂类化合物对气候变化的反映要比植物种灵敏得多,不同沼泽植物对气候变化的敏感性的差异是脂类分子化石记录与生物大化石结果很难一致的主要原因之一;(4)泥炭有机碳的转化受到温度、酸度、有机物质组成等很多因素的影响,短时间尺度,泥炭有机碳的转化受季节性降水、地方气候和植被等因素的影响;长时间尺度,泥炭地有机碳的转化,受气候条件控制;(5)总结泥炭分子化石特征、泥炭有机质各组分含量及植物残体组成随深度的变异规律,分析结果显示该泥炭地层形成过程中,1500a B.P(210cm)可作为划分前后晚全新世的界线,前期的基调是气候偏暖,但又有几次偏干冷气候的反复,后期气候以干冷为主,其间虽有几次上升波动,但整体趋势不变。

So far the most GIP is discovered in the shallow exploration area.

昌南区是泥底辟带中南部热流体上侵活动最为强烈的地区之一,其在地震剖面上的反映颇具代表性。

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