EARTH AS AN EVOLVING PLANETARY SYSTEM Part 1 ppt
EARTH AS AN EVOLVING PLANETARY SYSTEM Part 1 ppt
... 0.27 Oceanic 9. Ocean ridge 10 2 U 10 0–200 +200 to +250 0.22 10 . Ocean basin 38 12 S 50 +250 to +350 0.29 11 . Marginal-sea basin 4 2 U, I 50 15 0 +50 to +10 0 0.25 12 . Volcanic island < ;1 < ;1 I, ... [6] 6.4 10 . Ocean basin 8.2 2–4 (0.5) 5 .1 (1. 5) 6.8 (5) 7 [11 ] 6.4 11 . Marginal-sea basin 7.5–8.0 2–4 (1) 5.3 (3) 6.6 (5) 9 [13 ] 6.3 12 . Volcanic island 7.5–8.0 6.6 (6...
Ngày tải lên: 09/08/2014, 11:20
EARTH AS AN EVOLVING PLANETARY SYSTEM Part 5 ppt
... deviation of 18 O/ 16 O from standard mean ocean water (SMOW) in terms of δ 18 O: δ 18 O (‰) = [{( 18 O/ 16 O) sample /( 18 O/ 16 O) SMOW } – 1] × 10 00 Because marine chert and BIF are resistant to ... glacia- tion decreasing with time: the Nebraskan (1. 46 1. 3 Ma), Kansan (0.9–0.7 Ma), Illinoian (550,000–400,000 years ago), and Wisconsin (80,000 10 ,000 years ago). Each g...
Ngày tải lên: 09/08/2014, 11:20
EARTH AS AN EVOLVING PLANETARY SYSTEM Part 6 ppt
... The sparsity of rocks older than 3.0 Ga may be related 3000 2800 2600 2400 2200 01. 02.03.04.0 Time (Ga) Temperature (°C) 10 18 10 17 10 16 10 15 10 11 10 9 10 10 10 8 Rayleigh Number Viscosity ... about 530 Ma, land plants 470 Ma, vascular plants 410 Ma, amphibians 370 Ma, reptiles and the amniote egg about 330 Ma, insects 310 Ma, mammals 215 Ma, flowering plants 210 Ma, an...
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EARTH AS AN EVOLVING PLANETARY SYSTEM Part 7 pptx
... Ga and another at 1. 9 Ga (Fig. 8 .11 ). In addition, Continental Growth Rates 283 0.2 0.6 1. 0 1. 4 1. 8 2.2 2.6 3.0 3.4 3.8 Age (Ga) Volume Percent 1. 9 Ga 2.7 Ga 14 12 10 8 6 4 2 0 Figure 8 .11 Volume ... separate terranes with unique stratigraphy and deformational histories (Van Kranendonk et al., 2002): an eastern terrane (3.72–2.85 Ga), a western terrane (3.27–2.92 Ga), and t...
Ngày tải lên: 09/08/2014, 11:20
EARTH AS AN EVOLVING PLANETARY SYSTEM Part 8 ppt
... 3.3 6 .1 0 .12 Mars 1. 52 687d 24 0 .11 3398 3.94 3.75 2.5 0.8 Jupiter 5.2 11 .9y 13 318 71, 600 1. 32 Saturn 9.2 29.5y 9.7 95.2 60,000 0.69 Uranus 19 .1 84y 6.8 14 .5 25,600 1. 27 Neptune 30 16 4y 5.4 17 .2 ... (g/cm 3 ) (Earth = 1) (Earth = 1) Mercury 0.387 88d 48 0.056 2439 5.43 5.3 2.5 12 Venus 0.723 225d 35 0.82 60 51 5.24 3.95 1. 1 0.9 Earth 1 365d 30 1 6378 5...
Ngày tải lên: 09/08/2014, 11:20
EARTH AS AN EVOLVING PLANETARY SYSTEM Part 2 potx
... 2 Oceanic Layer Upper Mantle MODERN OCEAN FLOOR 12 11 10 9 8 7 6 5 4 DEPTH (km) 3 2 1 0 MOHO 1 −2 −3 −4 −5 −6 −7 −8 −9 10 10 0 Ma 17 5 Ma 780 Ma 790 Ma 17 30 Ma 19 70 Ma with gabbroic dikes and sills with ... Settings 13 0˚ 70˚ 60˚ 11 0˚ s s R M Eb GBL GSL Cb Beaufort Sea 75˚ Nb 70˚ 60˚ 90˚ 10 0˚ 11 0˚ 50˚ 0 500 km Sanivaq Savage Overby Schultz Tremblay Mystery Hudson Bay 12...
Ngày tải lên: 09/08/2014, 11:20
EARTH AS AN EVOLVING PLANETARY SYSTEM Part 3 pot
... Settings Dated Anorogenic Granite (1. 4 -1. 5 Ga) Keweenawan Rift ( 1. 0 Ga) Anorthosites (1. 4 -1. 5 Ga) 0 200 400 600 2.5 Ga 1. 34 - 1. 40 Ga 1. 65- 1. 75 Ga Granite Terrane 1. 42 -1. 50 Ga Granite Terrane > ~ 2.5 ... 0.33 Ta 0.04 0.23 0 .10 0. 014 Y 4.6 3 .1 0.63 2.7 La 0.69 0.77 3.0 0.33 Ce 1. 78 2.08 6.3 0.83 Eu 0 .17 0 .10 0 .11 0 .11 Yb 0.49 0.27 0.062 0.30 Co 10 4 11 1...
Ngày tải lên: 09/08/2014, 11:20
EARTH AS AN EVOLVING PLANETARY SYSTEM Part 4 ppsx
... oceanic and continental areas (Fig. 4 .18 ). Some occur on or near ocean ridges, such as Iceland, St. Helena, and Tristan in the Atlantic basin, and others occur near the centers of plates (such as ... Knittle and Jeanloz (19 91) . the Earth just after planetary accretion (Sun and McDonough, 19 89). Compared with primitive mantle, incompatible element distributions in the mantle lith...
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EARTH AS AN EVOLVING PLANETARY SYSTEM Part 9 ppsx
... the Moon Earth 1 Earth 2 Moon 3 Fe 29.9 28.2 8.3 O 30.9 32.4 44.7 Si 17 .4 17 .2 20.3 Mg 15 .9 15 .9 19 .3 Ca 1. 9 1. 6 3.2 Al 1. 4 1. 5 3.2 Ni 1. 7 1. 6 0.6 Na 0.9 0.25 0.06 K 0.02 0.02 0. 01 Ti 0.05 0.07 ... events can be estimated. The most useful isotopic pairs are 92 Nb/ 92 Zr (t 1/ 2 = 36 My), 18 2 W/ 18 2 Hf (t 1/ 2 = 9 My), 14 6 Sm/ 14 2 Nd (t 1/ 2 = 10 3 My...
Ngày tải lên: 09/08/2014, 11:20
EARTH AS AN EVOLVING PLANETARY SYSTEM Part 10 doc
... 18 2 18 4 supercontinent, 315 , 316 –327 D″ layer, 13 8 14 0 deposits energy, 11 1 11 2 mineral, 10 7 11 1 descending slabs, 13 7 13 8 discontinuity 410 -km, 13 3 13 5 660-km, 13 5 13 7 Mohorovicic, 19 –20 dolomite-limestone ... for, 15 8 16 0 uniqueness of, 8–9 Venus, and Mars, 385–388 Earth systems, 1 11 Earth as planetary system, 1 3 interacting, 9 11 plate tectonics,...
Ngày tải lên: 09/08/2014, 11:20