Other quantities
Terms
undefined, object
copy deck
- Radius of Earth
- 6371 km
- Mass of Earth
- 5.97x10^24 kg
- Density of surface rocks
- 2-3x10^3 kgm^-3
- Average density of Earth
- 5.52x10^3 kgm^-3
- Moment of inertia of sphere and earth
- .4Ma^2 and .33Ma^2
- Angle P and S waves stop
- 103
- Temp of interior of Earth at core-mantle boundary
- ca 4000
- Mantle depth
- 2800 km
- LVZ depth
- 100-150 km
- Earth Age
- ca 4560 Ma
- Power law creep
-
dislocations
0.55 Tm - Logarithmic or alpha creep
-
0.2 Tm
dislocations - Viscosity
-
shear stress to strain rate
Pas or Nm^-2s - Mid ocean ridges
-
50000 km long
1500 km wide
2.5 km deep - hexagonal close packing
- ABABABA
- cubic close packing
- ABCABCABC
- Ophiolite
-
sediment
extrusive (1.5km)
sheeted dyke (1 km)
intrusive rocks (4 km)
Mantle - Argillaceous
- Pelites
- Carbonitic
- Marble
- Laminar flow Re
- less 500
- turbulent flow Re
- more 2000
- Neritic zone
-
0-200 m
shelf edge - bathyal zone
-
200-4000 m
base cont slope - abyssal zone
-
4000-5000 m
abyssal plain - hadal zone
-
more 5000 m
trenches - Delta 18 O more ice
- seawater value increases
- Lower mantle
-
660-2885 km
Perovskite and ferropericlase - Transition zone
-
410-660 km
Mj-Gt, beta and gamma - Upper mantle
-
410 km
Peridotite
Ol, OPx, CPx, Gt - Olivine forms
-
Ol to 410 km
Beta to 525 km
Gamma to 660 km
Perovskite below (86% lower mantle)