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Organic carbon and nitrogen isotopes in surface sediments from the western Arctic Ocean and their im
Surface sediments from the Chukchi Sea and adjacent arctic deep sea were investigated for organic carbon and nitrogen is......
Contribution of Atmospheric Nitrogen Compounds to N Deposition in a Broadleaf Forest of Southern Chi
A one-year study in a typical red soil region of southern China was conducted to determine atmospheric nitrogen (N) flux......
Response of mollusk assemblages from the Luochuan loess section to orbital forcing since the last 25
This note presents a new result of terrestrial mollusk study from the Luochuan loesssection since the last 250 ka. A tot......
LATE CENOZOIC GOLD VEINSAND VOLCANICCOLLAPSE TECTONICSIN THE ISLAND ARCJUNCTIONSOF THE JAPANESE ISLA
0 IntroductionThe Japanese Islands consist of five volcanic arcs (Fig.1) .The North- East and South-West Japan arcs to......
Soil phosphorus bioavailability assessed by XANES and Hedley sequential fractionation technique in a
The primary productivity of terrestrial ecosystems is influenced by soil phosphorus bioavailability, which depends large......
Using eight years of time-variant gravity measurements from the GRACE gravity satellite mission, we estimate monthly ter......
Passive seismic techniques have revolutionarised seismology,leading for example to increased resolution in surface wave ......
1.Introduction Geomicrobiology as an interdisciplinary area has achieved great progress during the past two decades(Dong......
Lithium has proven to be an important geochemical tracer for fluid-related processes on the Earth’s surface as well as ......
Source,depositional environment and maturity levels of some crude oils in southwest Niger Delta,Nige
A suite of crude oil samples,that had not been previously characterized geochemically,was collected from two oil fields ......
The digital baseband predistorter is an effective technique to compensate for the nonlinearity of power amplifiers (PAs)......
Medium access control( MAC) protocol of underwater acoustic communication network is a key technology for underwater aco......
The Dongpu sag is located in the south of the Bohai Bay basin, China, and has abundant oil and gas reserves. To date, th......
大气中近10%的碳由土壤产生,其微小变化就能对全球碳平衡产生重要的影响,进而影响全球气候变化。因此,土壤碳储量和释放量的准确测......
基于四川盆地北部沉积波动的特点,结合该区的实际地质特征,在该区初步建立了热史波动模型,并应用该模型结合镜质体反射率古温标对......
明溪盖洋地区广泛发育的震旦纪火山岩,均已遭受区域变质.前人多数是从变质岩角度对其作研究,笔者是从火山岩及火山作用角度,在调研......
微波作为广播电视信号传输的重要手段之一，如何在三网融合的趋势下，结合甘肃广电的网络现状、发展要求和微波发展的最新技术，走出具有......
漳州地热系统属对流型地热系统.漳州热田是我国东南沿海地区目前所见热田中温度最高(121.5℃)的一个.地表热流值的研究表明,热田中......
本文首先概述了VLBI、SLR数据的特点,给出了建立地球参考框架的模型;通过对模型中参数的协方差分析,得出了利用10～15个良好分布且具......
