The key point is that the Gulf of Eilat is an oligotrophic sea, a sea that does not have nitrogen at all,Loya explained.

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On the basis of the data from four seasonal oceanographic censuses in the East China Sea（23°30′-33°N,118°30′-128°E） in 1997-2000,the paper studies on adaptation and ecotype of Ostracoda in the East China Sea through curve fitting,forming mathematical model,calculating optimal temperature and salinity,consulting geographic distribution based on synchronous data of abundance and environmental factors.

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Miller, a paleobiologist and professor of geology at the University of Cincinnati, says the new study is striking because it establishes a clear relationship between the tempo of mass extinction events and changes in sea level and sediment: Over the years, researchers have become fairly dismissive of the idea that marine mass extinctions like the great extinction of the Late Permian might be linked to sea-level declines, even though these declines are known to have occurred many times throughout the history of life.

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It utilized factor analysis and regression analysis ofthe multi-statistics to make the quantitative analysis on a great deal of core proxies in the North Indian Ocean and Indonesian Archipelago areas, and acquiredthe exact conversion relations of paleoceanic environment parameters (sea surface temperatureand salinity) and proxies. Then it made the change curve which can show the changes of paleo-ceanic environment parameters (sea surface temperature and salinity) which followed the changesof depth and provided the contrast between paleoceanic environment parameters of different coreson the landscape orientation. This paper supplied a more scientific and exact method for resumingthe paleoceanic environment on paleoceanography research.

本文闡述了以古海洋學(xué)數(shù)據(jù)庫系統(tǒng)數(shù)據(jù)為基礎(chǔ)的古海洋學(xué)多元統(tǒng)計分析模型观看黄A片免费AV网址，利用多元統(tǒng)計學(xué)中的因子分析和回歸分析技術(shù)對北印度洋以及印尼多島海地區(qū)大量巖芯的替代指標(biāo)做定量分析，求出古環(huán)境參數(shù)與替代指標(biāo)的精確轉(zhuǎn)換關(guān)系AV网站中文，從而做出各巖芯處古環(huán)境參數(shù)隨深度的變化曲線久要色色，提供不同巖芯在橫向上的古環(huán)境參數(shù)對比，為古海洋學(xué)研究中恢復(fù)古環(huán)境提供了一種更科學(xué)更精確的方法日韩经典自拍电影院在线播放网站。

This paper, using oxygen isotope data of the planktonic foramninifera shells of the two box-cores in the South China Sea basin, is a study about paleoclimatic range of the South China Sea.

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A three hour drive will take you from the Pannonian plain where the sea once reigned, through a multitude of hills, valleys scattered with villages, towns, churches, forests, lakes, rivers and creeks, caves and fields to Primorska where the sea reigns today...

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Results Serum samples were tested by ELISA using SEA treated with sodium periodate (SP-SEA- ELISA), including 64 sera from cases with chronic schistosomiasis japonica, 119 sera from normal individuals in non-en- demic area, 34 sera from patients with clonorchiasis, 33 sera of paragonimiasis cases and 36 sera from patients with cysticer- cosis.

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The average taxonomic distinctness Δ+ was the highest in the southern Yellow Sea and lowest in the central Yellow Sea; the spatial variations were largely caused by the different spatial distributions of species belonging to orders Perciformes, Pleuronectiformes, Clupeiformes and Scorpaeniformes, especially those of cartilaginous species.

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With the rich sediments supplied by the Pearl River, under the paleogeography sedimentary background of Baiyun Sag continuously subsiding, with sedimentary sequences related to relative transgressive sea level change ,contrary to regressive eustasy, the Pearl River Deepwater Fan System has specific evolution characteristics, which left the sedimentary record controlled by peripherical significant geological events. The sharp change of deposition rate and lithologic geochemical characteristics about 23.8Ma sequence boundary demonstratesd that sediment source had changed, perhaps related to the uplift of Tibet plateau and spreading of the South China Sea, which led the paleoPearl River drainage to expand to western China plateau , maybe much broader than present.

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