1) Tithonian radiolarian
提索期放射虫
1.
Well-preserved Tithonian radiolarian faunas were extracted from a chert block of the Yamdrok melange, south Xizang (Tibet).
文中所描述的提索期放射虫,采自于江孜县白洒村附近的一个原地岩块。
2) radiolaria
[英][,reidiəu'lɛəriə] [美][,redɪo'lɛrɪə]
放射虫
1.
Progress and Prospect in Research on Living Radiolaria Ecoloy: A Basic Study of Paleoenvironmental and Paleoeanographic Reconstructions;
放射虫现代生态学的研究进展及其应用前景——利用放射虫化石揭示古海洋、古环境的基础研究
2.
Radiolarian Fauna from the Longdonghe Formation at the Western Margin of the Simao Massif and its Geologoical Significance;
思茅地块西缘龙洞河组放射虫动物群及其地质意义
3.
Radiolaria and chronostratigrapby and paleoclimatologic character in Cores 96 and 1 55 from the Okinawa Through Cheng Zhenbo;
冲绳海槽96、155号岩心放射虫与年代地层及古气候特征
3) Radiolarian-like shape
放射虫状
4) radiolarian
[英]['reidiəu'lɛəriən] [美]['redɪo'lɛrɪən]
放射虫
1.
Early Permian radiolarians from the Longbao ophiolitic mélange in Yushu Area,Qinghai-Tibet Plateau,China;
青藏高原东部玉树隆宝蛇绿混杂岩中早二叠世放射虫的发现及其地质意义
2.
Discovery of Middle Triassic radiolarian fossils in cherts in the vicinity of the Tubei Lake,northern Nyima,Tibet,China;
西藏尼玛北部图北湖一带硅质岩中发现中三叠世放射虫化石
3.
Radiolarian Assemblages in Surface Sediments of the South China Sea and Their Marine Environmental Correlations;
南海表层沉积物中放射虫的组合特征与海洋环境
6) radiolarians
放射虫
1.
By the radiolarians research on the Paleogene Zheba Group in Saga region,it can be recognized that this marine stratum is composed of Early Cretaceous-Early Eocene deposits and the molassic deposits lay over the marine sediments are 41.
对萨嘎地区古近纪海相沉积放射虫化石和上覆陆相沉积年代学研究证实,原古近系折巴群包含了早白垩世—早始新世不同时代的沉积,而不整合在其上陆相磨拉石沉积时代为早始新世中晚期(41。
2.
Paleozoic radiolarians are found in 19 provinces in China except three provinces of Northeast, Hebei, Shanxi, Shandong, Hainan and Taiwan, ranging from Late Cambrian to Late Permian Changsingian in age; ②Research scopes have gradually expanded.
20世纪中国古生代放射虫研究取得三方面成绩 :1。
3.
Based on the quantitative study of radiolarians from the Pleistocene in core 17957 2 at the South China Sea,it is found that both radiolarian accumulation rate and abundance decreased to the lowest levels in periods from 0.
34Ma以来的放射虫定量研究发现 ,在 0 。
补充资料:欧洲式期权、美国式期权与亚洲式期权
欧洲式期权、美国式期权与亚洲式期权
【欧洲式期权、美国式期权与亚洲式期权】期权合约所规定的权利有一定的时效期,过了失效日后,权利即行作废。一些期权规定权利仅能在有效期的最后一天执行,这种期权被称为欧洲式期权(ell功pean叩tions);另一些期权则容许在有效期内任何一天执行,这种期权被称为美国式期权(一~oPtions)。值得指出的是,虽名为欧洲式或美国式期权,但已无任何地理上的意义。由于欧洲式期权的规定过于严格,又出现了一种“改变的欧洲式期权”,它允许期权在一定的时间范围内进行交易。可见,美国式期权为期权购买者提供了更多的选择机会,因此,它的购买者也往往需支付更高的保险费。近年来无论在欧洲或美国,所交易的期权均以美国式为主,欧洲式期权虽仍存在,但其交易量已比不上美国式期权。 在so年代末期,市场上又出现了一种所谓亚洲式期权(asian ontions),但也无地理上的意义,其差别主要在于履约价值(exe而sev公此)的计算。以买权为例,无论是美国式期权或是欧洲式期权,执行权利所能得到的履约价值均为当时标的物的市价减去履约价格,再乘以合约所定的数量,但亚洲式期权的履约价值则为权利期间内标的物市价的平均(计算至履约日为止),减去履约价格,再乘以合约所定的数量。
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参考词条