Mineralogy of the Earth – The Earth’s Core: Iron and Iron Alloys

2007 ◽  
pp. 91-120 ◽  
Author(s):  
L VOCADLO
2019 ◽  
Vol 7 (18) ◽  
pp. 3113-3117
Author(s):  
Massimo Fioranelli ◽  
Alireza Sepehri ◽  
Maria Grazia Roccia ◽  
Cota Linda ◽  
Chiara Rossi ◽  
...  

AIM: In this paper, inspiring Darwin’s theory, we propose a model which connects evolutions of neural circuits with evolutions of cosmos. In this model, in the beginning, there are some closed strings which decay into two groups of open strings. METHODS: First group couple to our universe from one side and produce matters like some genes of DNAs and couple to an anti-universe from another side with opposite sign and create anti-matters like some anti-genes of anti-DNAs. Second group couple to the star and planet’s cores like the earth’s core from one side and produce anti-matters like stringy black anti-DNA and couple to outer layers of stars and planets like the earth from other side and produce matters like some genes of DNAs on the earth. Each DNA or anti-DNA contains some genetic circuits which act like the circuits of receiver or sender of radio waves. To transfer waves of these circuits, some neurons emerge which some of them are related to genetic circuits of anti-DNAs in anti-universe, and some are related to genetic circuits of stringy black anti-DNA within the earth’s core. A collection of these neural circuits forms the little brain on the heart at first and main brain after some time. RESULTS: To examine the model, we remove effects of matters in outer layers of earth in the conditions of microgravity and consider radiated signals of neural circuits in a chick embryo. We observe that in microgravity, more signals are emitted by neural circuits respect to normal conditions. This is a signature of exchanged waves between neural circuits and structures within the earth’s core. CONCLUSION: These communications help some animals to predict the time and place of an earthquake.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Shoh Tagawa ◽  
Naoya Sakamoto ◽  
Kei Hirose ◽  
Shunpei Yokoo ◽  
John Hernlund ◽  
...  

AbstractHydrogen is one of the possible alloying elements in the Earth’s core, but its siderophile (iron-loving) nature is debated. Here we experimentally examined the partitioning of hydrogen between molten iron and silicate melt at 30–60 gigapascals and 3100–4600 kelvin. We find that hydrogen has a metal/silicate partition coefficient DH ≥ 29 and is therefore strongly siderophile at conditions of core formation. Unless water was delivered only in the final stage of accretion, core formation scenarios suggest that 0.3–0.6 wt% H was incorporated into the core, leaving a relatively small residual H2O concentration in silicates. This amount of H explains 30–60% of the density deficit and sound velocity excess of the outer core relative to pure iron. Our results also suggest that hydrogen may be an important constituent in the metallic cores of any terrestrial planet or moon having a mass in excess of ~10% of the Earth.


2014 ◽  
Vol 346 (5-6) ◽  
pp. 130-139 ◽  
Author(s):  
Guillaume Morard ◽  
Denis Andrault ◽  
Daniele Antonangeli ◽  
Johann Bouchet

2013 ◽  
Vol 373 ◽  
pp. 169-178 ◽  
Author(s):  
G. Morard ◽  
J. Siebert ◽  
D. Andrault ◽  
N. Guignot ◽  
G. Garbarino ◽  
...  

2015 ◽  
Vol 413 ◽  
pp. 158-166 ◽  
Author(s):  
M.A. Bouhifd ◽  
M. Boyet ◽  
C. Cartier ◽  
T. Hammouda ◽  
N. Bolfan-Casanova ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document