是地球的热内核所需的生活?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 06 - t11:09:54z //www.hoelymoley.com/feeds/question/240 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/240 16 是地球的热内核所需的生活? Kenshin //www.hoelymoley.com/users/51 2014 - 04 - 17 - t00:37:50z 2023 - 06 - 22 - t10:16:53z < p >地球的内核有一个巨大的温度4300摄氏度左右。这是大型核心温度的理想温度的一个重要因素,有必要保持生活正如我们所知,地球的外壳和氛围,或者是核心的温度很无关紧要的地壳上的温度?< img src = " https://i.stack.imgur.com/UbOw1.jpg " alt = "在这里输入图像描述" > < / p > //www.hoelymoley.com/questions/240/-/242 # 242 6 Neo回答的是地球的热内核所需的生活? Neo //www.hoelymoley.com/users/32 2014 - 04 - 17 - t00:45:27z 2014 - 04 - 17 - t07:29:54z < p >是的,没有。地球的热内核的众多因素之一,导致理论< a href = " http://en.wikipedia.org/wiki/Rare_Earth_hypothesis # With_plate_tectonics”rel =“nofollow”>间接稀土< / >。由于潜在的温差是什么驱动地幔对流(密度,但密度取决于压力和温度),冷的岩石圈和热的发展核心是绝对必要的复杂的生命如果你把达尔文的进化论是物种形成的主要动力。不过,我敢肯定还有其他的环境中生活可以出现(我希望有一天我们会发现在土卫六甲烷生物,那将是很酷的)。< / p >

As winwaed also mentioned, the hot inner core is surrounded by a chaotically convecting liquid core which produces the Earth's magnetic field, undoubtedly important to life.

Edit for further explanation on the link between evolution and the potential temperature difference between the core and lithosphere:

While this goes a bit out of my expertise, the Theory of Evolution requires a diversity of environments in which random mutations naturally give a species an advantage over another. Plate tectonics enhances this diversity, by not only transporting land to different climates but also making new ones (arc volcanism). Without the temperature difference between the core and the lithosphere, we would not have mantle convection, which is the fundamental driver of plate tectonics. So while the temperature of the core is not directly necessary for life, it has allowed for a much more diverse speciation on this planet. This, of course, has other implications (such as surviving catastrophic extinction) but those I feel are outside the scope of this question.

//www.hoelymoley.com/questions/240/-/260 # 260 13 hugovdberg回答的是地球的热内核所需的生活? hugovdberg //www.hoelymoley.com/users/79 2014 - 04 - 17 - t07:17:07z 2014 - 04 - 17 - t07:17:07z < p >的核心是严格的高温是否需要维护一个适宜居住的表面温度我不确定,随着全球温度在很大程度上是由日晒和温室效应。The black-body radiation temperature of the Earth is about -18 °C, and even a more realistic estimate of the surface temperature without an atmosphere is around 1 °C [1]. That being said, it depends on what you define as life, if the Earth had no atmosphere the temperature would have been lower, but organisms would have adapted to that if they existed in the first place.

As Neo and winwaed also mentioned, the molten iron in the core does protect organisms against harmful radiation from the sun, by providing the Earth with a shielding magnetic field.

Also, the hot core and mantle most likely did influence the origin of life to begin with, as near hydrothermal vents in the ocean floor conditions might have been or are suitable for spontaneous reactions that lead to the formation of self-reproducing molecules [2]. Note this is not in the Darwinian sense Neo talks about (Darwin's book is called On the Origin of Species, not On the Origin of Life), but in the microbiological and geological sense.

[1] https://en.wikipedia.org/wiki/Black-body_radiation#Temperature_of_Earth
[2] Martin, W., J. Baross, D. Kelley, M.J. Russell (2008) Hydrothermal vents and the origin of life. Nature

//www.hoelymoley.com/questions/240/-/273 # 273 5 tobias47n9e回答的是地球的热内核所需的生活? tobias47n9e //www.hoelymoley.com/users/23 2014 - 04 - 17 - t11:20:51z 2014 - 04 - 17 - t11:20:51z < p >液体外核和由此产生的磁场对生命来说是必不可少的。没有磁场,我们就没有气氛。温度将大致相当于月球(从123 C的半球发生面对太阳和-153 C阴影半球)。< / p >

Source for moon temperatures:

http://www.space.com/18175-moon-temperature.html

//www.hoelymoley.com/questions/240/-/10188 # 10188 1 user7733回答的是地球的热内核所需的生活? user7733 //www.hoelymoley.com/users/7733 2017 - 04 - 24 - t22:45:54z 2017 - 04 - 24 - t22:45:54z < p >理论提出的重力感应递减率洛施密特(1876)表明,所有行星都将有一个温度梯度在大气和地球的固体结构的核心。如果这个理论是正确的,那么热内核的行星大气是所有这类机构的共同特征。(我们认为)显然,生活不是等所有形式的身体但只在少数。The features of the hot core, cooler surface & gaseous atmosphere would not then be the deciding factor as to whether we have a lifeless planet or not. If we assume, like the question, that life requires a certain temperature range then the main deciding factor will be the surface temperature as we expect life to be moving, swimming or flying about pretty close to the surface (generally). The 2 main deciding factors would be distance from the star and composition of the atmosphere, next factor is probably rotational speed on axis.

//www.hoelymoley.com/questions/240/-/13405 # 13405 2 杰森农民回答的是地球的热内核所需的生活? 杰森的农民 //www.hoelymoley.com/users/12266 2018 - 02年- 19 - t22:26:26z 2018 - 02年- 19 - t22:26:26z < p >地球没有熔火之心就死了。就不会有火山、地震等板块构造。任何材料侵蚀从山脉将最终在大海的底部,然后呆在那里。最终就没有土地。侵蚀将继续,直到我们一无所有但与很少或没有深海矿物营养素。对生活的丰富多样性。< / p >

So when we hear of the natural disasters of volcanoes and earthquakes, appreciate that the very earth is alive and sustaining us.

//www.hoelymoley.com/questions/240/-/25309 # 25309 2 陈回答的是地球的热内核所需的生活? //www.hoelymoley.com/users/29136 2023 - 06 - 22 - t10:16:53z 2023 - 06 - 22 - t10:16:53z < p >熔火之心对地球上的生命的生存至关重要。我们地球的熔火之心负责生成磁场,盾牌表面太阳辐射和宇宙射线的伤害。没有这个防护磁场,地球的大气层会被剥夺走,生活可能会无法生存。< / p >

In addition, the molten core plays a critical role in regulating the Earth's climate and maintaining a stable environment for life to thrive. Without the heat generated by the core, the Earth's surface would be much colder and less hospitable to life. The movement of the molten material in the core also helps to drive the motion of the tectonic plates, which plays a critical role in the cycling of nutrients and the regulation of the carbon cycle, which are both important for life on Earth.

Baidu
map