Radiolaria: Change in Skeletal Weight and Resistance to Solution
Radiolaria: Change in Skeletal Weight and Resistance to Solution
复制标题
放射虫：骨骼重量的变化和对溶液的抵抗力
DOI：
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发表时间：
1969
期刊：
影响因子：
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通讯作者：
T. C. Moore
中科院分区：
文献类型：
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作者：
T. C. Moore
在新生代，生活在热带水域的放射虫逐渐发展出更轻的骨骼，这显然是一种进化趋势的结果。第四纪放射虫的平均骨骼重量仅为始新世放射虫的四分之一。如果这些生物的生产速度保持不变，始新世放射菌每单位时间向海底输送的二氧化硅量是第四纪放射菌沉积的四倍。来自不同新生代动物群的物种对溶液的抵抗力不同。因此，在沉积物样品的组合中，某些物种的存在、缺失和丰度为动物混合的数量和组合的腐蚀程度提供了关键。
During the Cenozoic Era, Radiolaria living in tropical waters developed progressively lighter skeletons, apparently as a result of an evolutionary trend. The average skeletal weight of Quaternary Radiolaria is only one-fourth that of Eocene Radiolaria. If the rate of production of these organisms has remained constant, the amount of silica delivered to the ocean floor per unit time by Eocene Radiolaria is four times greater than that being deposited by Quaternary Radiolaria. Species from the various Cenozoic faunas differ in their resistance to solution. Thus, in assemblages from sediment samples, the presence, absence, and abundance of certain species provide a key to the amount of mixing of faunas and the degree of corrosion of assemblages.