History of the Earth's Atmosphere 作者:Yanshin, Alexander L. 页数:139 定价:$ 90.34 ISBN:9783540172352 豆瓣评分 目前无人评价 评价: 写笔记 写书评 加入购书单 分享到 推荐 论坛· ··· 在这本书的论坛里发言
It is assumed that CO2 given off to the atmosphere by volcanic and metamorphic degassing is removed mainly in the form of carbonate minerals in sediments (organic matter being much less abundant). The total mass of carbonate for each age period, divided by the length of the period, gives ...
1 Introduction.- 1.1 The Modern Atmosphere.- 1.2 Cycles of Atmospheric Gases.- 1.3 Studies of the Evolution of the Atmosphere.- 2 Methods for Determining Changes in the Composition of the Atmosphere.- 2.1 Sedimentary Layer of the Earth's Crust.- 2.2 Carbon in the Sedimentary Layer.- 2.3 The...
At a certain period in Earth’s history, its atmosphere contained almost no oxygen, although plants were producing vast quantities of oxygen. As a way of reconciling these two facts, scientists have hypothesized that nearly all of the oxygen being produced was taken up by iron on Earth s surf...
Earth's Atmosphere, History of the Origins 来自 Semantic Scholar 喜欢 0 阅读量: 25 作者: SL Gars 摘要: HistoryIf the scientific investigation of the atmosphere really started in the seventeenth century, the problem of its origin was taken into account only two centuries later. It is indeed ...
Earth's Atmosphere (II) 光合、光解、降解、火山喷发与地球大气形成都有什么关系呢? 29010:13 Birdsong (I)单独养大的苍头燕雀鸣叫声有什么不一样? 31309:10 Birdsong (II)鸟儿只能学会自己物种的声音吗? 23006:37 The Role of Diapause (I)你知道什么是“滞育”吗? 35612:26 The Role of Diapause (II)...
At a certain period in Earth’s history, its atmosphere contained almost no oxygen. 子句类型: 主句 连接词: 分句-1 Plants were producing vast quantities of oxygen. 子句类型: 状语从句 连接词: ALTHOUGH 3. 句子成分 主句 At a certain period in Earth’s history, [状语] its atmosphere [...
Earth's mantle to the atmosphere over the last 3.3 Ga. Furthermore, Archean Xe originates from a primordial component different from all other known reservoirs of Xe in the solar system and similar to the theoretical U-Xe. Comets may have been the source of this noble gas component, ...
At a certain period in Earth’s history, its atmosphere contained almost no oxygen, although plants were producing vast quantities of oxygen. As a way of reconciling these two facts, scientists have hypothesized that nearly all of the oxygen being produced was taken up by iron on Earth s suce...
ANDREA SEABROOK