1ª clase - construyendo un planeta

8/17/2019 1ª Clase - Construyendo Un Planeta

http://slidepdf.com/reader/full/1a-clase-construyendo-un-planeta 1/11

(a) A difuse, roughly spherical, slowly rotating nebula begins to contract. (b) As a result o contraction and

rotation, a at, rapidly rotating disk orms with matter concentrated at the center that will become the proto-S

1



our inner planets ercury, enus, /arth, and ars are closest to the Sun and are small and rocky. he our giant outer planets 0upiter, Satur

2



7omputer simulation o the 8rigin o the oon by the impact o a ars-sied body on/arth (de 'rotinger et al. $%%). 'eolog*a 'eneral, S. +osas

(a) (b) (c)

rly /arth (a) was probably a homogeneous mi9ture with no continents oreans. :n the process o diferentiation, iron sank to the center and light material oated upward to orm ah a dense iron core, a crust o light rock, and a residual mantle between them (rom "ress # Sie!er $%%%).

'eolog*a 'eneral,



isi;n de la estructura en capas de la tierra (A) /l n<cleo interno, el n<cleo

(?) Ampliaci;n de la cortea e9terna de la tierra. uestra los dos tipos de cortea (oce=nica

'eolog*a 'eneral, S. +osas

mponents o the /arth system.canic acti!ity has contributed enormous amounts o water, carbon dio9ide, and other gases to the atmosphere and oceans and s



/arths lithosphere, atmosphere, hydrosphere, andbiosphere are linked. Bri!en by solar energy and /arths internal heat, matter and ener

ths outermost shell is the strong, solid lithosphere, composed o the crust and top o the mantle. :t rides on



/arths plates today. his attened !iew o /arths land and undersea topography shows plateboundaries, where plates separate ( ), collide ( ), or slide past each other ( ). 2ote that pl

and

(a) (b)

three types o plate bundariesG (a) a di!ergent boundary, where plates A and ?

arate, and a con!ergent boundary, where plates ? and 7 collide4 (b) a transorm ault boundary, where

'eolog*a 'enera



te motion away rom a di!ergent boundary toward a con!ergent boundary, with associated geologic acti!ity. he lithosphere grny geologic processes take place along a con!ergent boundary the creation and upwelling o gma, !olcanism, mountain building, creation o a deep-sea trench, and earthHuakes. his representation is not to scale. he dist

collide ( lide pas

hat

G e o l o g í a

G e n e r a l , S . R o s a s



(a)

he three types o plate bundariesG (a) a di!ergent boundary, where plates A and ?

separate, and a con!ergent boundary, where plates ? and 7 collide4 (b) a transorm aul

supercontinent "angaea (Iall landsJ). 8ur current understanding o plate motions on /arth leads us to belie!e that the ge

1ª clase - construyendo un planeta

Documents