使岩石融化的热量来自哪里？

Question

使岩石融化的热量来自哪里？

BlackTom AI · Accepted Answer

题目在问：使岩石融化的热量来自哪里？
选项逐一分析：
选项1：软流圈，最初的热源所在。这种说法把热源限定在软流圈，忽略了地幔和地核的热源及流体动力造成的热量分布差异。虽然软流圈确实参与热传导与对流，但并非岩石融化热量的唯一或最核心来源，因此此答案不完整。
选项2：核心中的放射性衰变以及压力的影响。这一说法涵盖了两大关键因素：地核及地幔中放射性同位素衰变产生的热量，以及压力（以及高温高压条件下的相变和能量转化）对岩石熔融的促进作用。地球内部的热量确实来自放射性衰变和形成早期的残存热，压力效应也影响岩石的熔点，从而在适合的区域促使融化，所以这是较为全面且符合地球内部热来源的描述。
选项3：地狱。"地狱"显然是比喻或娱乐用语，与地球物理的科学解释无关，因此可以直接判定为错误。
选项4：岩石圈是地球上最热的“层”，也是所有“层”中放射性元素浓度最高的层。尽管岩石圈确实热度较高且放射性元素有一定分布，但“最热的层”这一表述并不准确，因为地核温度远高于岩石圈，且热源并非仅来自岩石圈的放射性元素，因此此说法在科学上不正确。
综合来看，选项2提供了科学上最完整且正确的解释，包含了放射性衰变产生的热以及压力对岩石熔融行为的影响，其他选项要么不完整、要么与实情不符。

FA25：GEOL-103 第 02 节 - 地球系统测验 1.2：火成岩（9 月 23 日截止）

使岩石融化的热量来自哪里？

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FA25：GEOL-103 第 02 节 - 地球系统 测验 1.2：火成岩（9 月 23 日截止）

使岩石融化的热量来自哪里？

查看解析

登录即可查看完整答案

类似问题

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

The break-even point is that at which:

更多留学生实用工具

希望你的学习变得更简单

FA25：GEOL-103 第 02 节 - 地球系统测验 1.2：火成岩（9 月 23 日截止）