Earth's outer core is a fluid layer about 2,260 km (1,400 mi) thick, composed of mostly iron and nickel that lies above Earth's solid inner core and below...
24 KB (2,405 words) - 20:51, 9 June 2025
Earth's inner core is the innermost geologic layer of the planet Earth. It is primarily a solid ball with a radius of about 1,230 km (760 mi), which is...
61 KB (7,216 words) - 03:45, 5 June 2025
liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core. Scientific understanding of the internal structure of Earth is...
33 KB (3,149 words) - 01:50, 24 May 2025
The core–mantle boundary (CMB) of Earth lies between the planet's silicate mantle and its liquid iron–nickel outer core, at a depth of 2,891 km (1,796 mi)...
9 KB (943 words) - 10:36, 13 September 2024
Seismic wave (redirect from Earth quake waves)
to increase with depth through Earth's crust and mantle, but drops sharply going from the mantle to Earth's outer core. Earthquakes create distinct types...
21 KB (2,383 words) - 15:29, 24 May 2025
Magma ocean (section Earth's magma ocean)
Today Earth's outer core is a liquid layer about 2,260 km (1,400 mi) thick, composed mostly of molten iron and molten nickel that lies above Earth's solid...
10 KB (1,209 words) - 05:14, 8 June 2025
on which they lie does not pass through Earth's center. Owing to the motion of fluid in the Earth's outer core, the actual magnetic poles are constantly...
10 KB (1,193 words) - 22:03, 11 May 2025
duration of the Earth's rotation and lunar month in the past, that suggests the possibility that Earth's Moon was much closer to Earth during the early...
10 KB (1,105 words) - 06:11, 6 March 2025
Dynamo theory (category Structure of the Earth)
explanation of the Earth's magnetism, proposed that this magnetic field resulted from electric currents induced in the fluid outer core of the Earth. He revealed...
34 KB (4,392 words) - 04:56, 27 May 2025
Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from Earth's interior out into space, where it interacts...
79 KB (8,967 words) - 05:17, 3 June 2025
the Earth's mantle Hf/W ratio places Earth's core as having segregated within 25 million years. Several factors control segregation of a metal core including...
37 KB (4,408 words) - 09:23, 1 January 2025
Polar drift (category Polar regions of the Earth)
variations in the flow of molten iron in Earth's outer core, resulting in changes in the orientation of Earth's magnetic field, and hence the position of...
5 KB (362 words) - 03:39, 26 April 2025
North magnetic pole (category Polar regions of the Earth)
Earth's magnetic north pole. The north magnetic pole moves over time according to magnetic changes and flux lobe elongation in the Earth's outer core...
26 KB (2,852 words) - 03:38, 26 April 2025
mixture of molten iron and nickel in Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo...
26 KB (3,152 words) - 14:56, 31 May 2025
Geochemistry of carbon (section Core)
minerals, and also exists in the Earth's outer core in solution with iron, and may also be present in the inner core. Carbon can form a huge variety stable...
28 KB (3,900 words) - 07:22, 26 May 2024
Earth's Solid Inner Core". The New York Times. Retrieved 2 May 2025. Souriau, A.; Calvet, M. (2015). "1.23 - Deep Earth Structure: The Earth's Cores"...
24 KB (2,877 words) - 17:01, 27 May 2025
Planetary core, the center of a planet Earth's inner core Earth's outer core Stellar core, the region of a star where nuclear fusion takes place Solar core Core...
6 KB (793 words) - 17:18, 5 May 2025
At the Earth's Core is a 1914 fantasy novel by American writer Edgar Rice Burroughs, the first in his series about the fictional "hollow earth" land of...
9 KB (1,022 words) - 00:59, 3 June 2025
Swarm (spacecraft) (category Earth observation satellites of the European Space Agency)
study the Earth's magnetic field. High-precision and high-resolution measurements of the strength, direction and variations of the Earth's magnetic field...
14 KB (1,054 words) - 11:22, 24 May 2025
Earth's mantle is a layer of silicate rock between the crust and the outer core. It has a mass of 4.01×1024 kg (8.84×1024 lb) and makes up 67% of the...
28 KB (3,248 words) - 14:53, 24 May 2025
due to changes in the mass distribution or angular momentum of the Earth's outer core, atmosphere, oceans, or crust (from earthquakes), for a long time...
10 KB (1,159 words) - 05:26, 2 June 2025
metallic core is also theorized to sustain a geodynamo which generates Earth's magnetic field. Despite its geological significance, Earth's interior heat...
18 KB (2,119 words) - 05:38, 14 January 2025
water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's crust. The remaining 29.2% of Earth's crust is land, most...
219 KB (19,425 words) - 21:33, 29 May 2025
Earth's outer core generates a magnetic field that fluctuates very little over the lifespan of many species, but will vary distinctly across Earth's surface...
20 KB (2,082 words) - 04:16, 25 May 2025
between two sections of the earth's interior, known as the lower mantle (which is considered solid) and the underlying outer core (believed to be molten)...
4 KB (484 words) - 05:53, 1 June 2025
Geophysics (redirect from Earth physics)
Electromagnetic waves occur in the ionosphere and magnetosphere as well as in Earth's outer core. Dawn chorus is believed to be caused by high-energy electrons that...
49 KB (5,248 words) - 18:19, 1 June 2025
Geomagnetic reversal (redirect from Earth's magnetic reversal)
time, the Earth's polarity was poorly understood, and the possibility of reversal aroused little interest. Three decades later, when Earth's magnetic field...
44 KB (4,927 words) - 22:18, 7 May 2025
and uranium on the equatorial plane and at the boundary between the Earth's outer core and mantle. If the concentrations of these radioactive elements were...
31 KB (3,395 words) - 13:57, 1 June 2025
This page is a list of the episodes of The Outer Limits, a 1995 science fiction/dark fantasy television series. The series was broadcast on Showtime from...
177 KB (663 words) - 16:26, 3 June 2025
convection, can occur.: 171 Convection in the Earth's outer core drives the geodynamo that is the source of the Earth's magnetic field.: Chapter 8 In the ocean...
10 KB (1,077 words) - 09:45, 12 May 2025