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P re v N ex t L a b M od u le 2 : M in era l a n d R ock I d en tif ic a tio n L a b ; G eo lo g ic T im e ( 4 0 p oin ts ) P art 1 : M in era l a n d R ock I d en tif ic a tio n I n t h is p art o f t h e la b , y o u w ill d esc rib e t h e m in era ls a n d r o ck s in clu ded in y o u r H om e T ra in in g T ools b oxe s.

Y ou w ill c re ate a lis t o f t h e m in era ls a n d r o ck s id en tif ie d b y n um ber, a n d r e co rd y o u r p ers o n al o b se rv a tio n s o f y o u r s a m ple s. F o r t h e m in era ls , y o u s h ou ld m ake n ote o f t h e lu ste r a n d c o lo r, h ard n ess, c le ava g e o r f r a ctu re , s tr e ak, a n d if it h as a n y s p ecia l c h ara cte ris tic s, a s d esc rib ed in t h e I n te ra ctiv e L e ctu re a n d y o u r t e xtb ook. F o r t h e r o ck s, id en tif y t h e t e xtu re , c o m posit io n a n d a d esc rip tio n o f g ra in s o r c ry sta l, o r o b se rv a b le m in era ls p re se n t, a ls o d esc rib ed in t h e in te ra ctiv e le ctu re a n d y o u r t e xtb ook. T here a re 1 5 m in era ls , a n d 1 5 r o ck s, 5 o f e ach r o ck t y p e. 1 . F lu orit e 1 . O bsid ia n 2 . F e ld sp ar – M ic ro clin e 2 . G ra n it e 3 . H em atit e 3 . B asa lt 4 . P yrit e 4 . P u m ic e 5 . M ilk y Q uartz 5 . R hyo lit e 6 . C alc it e 6 . S h ale 7 . M ic a – M usc o vit e 7 . C alc a re o u s T ufa 8 . M ag n etit e 8 . S an dsto n e 9 . G yp su m – A la b aste r 9 . C on glo m era te 1 0. T alc 1 0. L im esto n e 1 1. H alit e 1 1. S la te 1 2. M ic a – B io tit e 1 2. M arb le 1 3. G ra p h it e 1 3. Q uartz it e 1 4. G yp su m – S atin S par 1 4. G neis s 1 5. G yp su m – S ele n it e 1 5. S ch is t h ttp :/ /w ww.h om etr a in in gto ols .c o m /m in era l- s tu dy-k it h ttp :/ /w ww.h om etr a in in gto ols .c o m /ro ck -s tu dy-k it A nsw er t h e f o llo w in g q u estio n s: 1 . E xp la in t h e r o ck c y cle . 2 . W hat d id y o u f in d t h e m ost u se fu l p ro p erty t o id en tif y y o u r m in era ls ? 3 . W hat w as d if fe re n t a b ou t t h e c o m pon en ts o f y o u r c o n glo m era te a n d g ra n it e ? 4 . W hat w as s im ila r b etw een y o u r lim esto n e a n d m arb le ? 5 . W hat w as d if fe re n t b etw een y o u r s a n dsto n e a n d q u artz it e ? 6 . D esc rib e t h e d if fe re n ce s b etw een t h e c o n glo m era te , s a n dsto n e, a n d s h ale . 7 . W hat is s im ila r a n d w hat is d if fe re n t a b ou t y o u r g ra n it e a n d g n eis s? P art 2 : G eo lo g ic t im e R ela tiv e d atin g m eth od s:

U sin g t h e d ia g ra m b elo w , a n d t h e r u le s o f r e la tiv e d atin g, a n sw er t h e f o llo w in g q u estio n s. 1 . W hic h u nit w as b ein g d ep osit e d w hen t h e f a u lt h ap pen ed ? 2 . E xp la in w hy t h e f u nny lin e b etw een u nit s 3 a n d 4 is a d is c o n fo rm it y , a n d n ot a n a n gu la r u nco n fo rm it y . 3 . H yp oth etic a lly , if t h e t r e es a n d g ro u nd a t t h e t o p w ere c o ve re d b y t h e o ce an , a n d d ep osit io n r e su m ed , w hat t y p e o f u nco n fo rm it y w ou ld b e a b ove u nit 1 2, a n d w hy? 4 . W ou ld u nit 1 1 lik e ly t o b e p re se n t w hen t h e f a u lt h ap pen ed ? W hy o r w hy n ot? 5 . E xp la in w hy u nit s 1 -5 w ere n ot d ep osit e d in t h is p osit io n . 6 . I n s o m e a re as, f a u lt s a re k n ow n t o a ct a s a p etr o le u m t r a p . I f u nit 2 h as o il, a n d u nit 3 is s h ale , w hat p art o f u nit 2 w ou ld y o u d rill in to , a b ove o r b elo w t h e f a u lt , a n d w hy? S u bm is sio n s S u bm it A ssig n m en t E arth S cie n ce w it h L a b : F A LL1 7-A -8 -G EO 101C -3 M od u le 2 : R ock s a n d M in era ls M od u le 2 : L a b G ra d e: N /A R ad io m etr ic d atin g:

A nsw er t h e f o llo w in g q u estio n s. 1 . I n o rd er t o a sc e rta in u se fu l d ate s o n r o ck u nit s t o h elp d ete rm in e t h e a g e o f m ajo r e ve n ts . Y ou r m is sio n is t o d ate w hat is t h ou gh t t o b e a v e ry o ld f o ssil w it h a v o lc a n ic a sh la ye r im med ia te ly a b ove t h e f o ssil. W e d o k n ow t h e f o ssil is a t le ast m ore t h an 3 00 m illio n y e ars o ld . S h ou ld w e u se c a rb on 1 4 t o d ate t h e f o ssil, o r u ra n iu m 2 38 t o d ate t h e v o lc a n ic a sh la ye r, a n d w hy? 2 . W e f in d s a m ple s o f a n ig n eo u s r o ck d em on str a te it h as b een t h ro u gh 3 h alf - liv e s. T he t e st e le m en t h as a h alf - lif e o f 3 00 m illio n y e ars . H ow o ld is t h e r o ck ? 3 . I f t h e p are n t is o to p e s ta rts w it h 1 00 g ra m s, b u t y o u r s a m ple s y ie ld o n ly 6 .2 5 g ra m s o f t h e p are n t is o to p e, h ow m an y h alf - liv e s h ave p asse d ? 4 . W hat u nsta b le is o to p e w ou ld b e b est t o r e fin e t h e d ate o f b on es f o u nd in a c a ve h earth b u ilt b y h um an s b etw een 2 0,0 00 a n d 4 0,0 00 y e ars a g o? 5 . A rg u e w it h t h e f o llo w in g: A s to n e t o ol f a sh io n ed f r o m a c h unk o f o b sid ia n y ie ld s a d ate o f 3 ,0 00,0 00 y e ars o ld , t h ere fo re , t h e t o ol w as m ad e b y a h um an 3 ,0 00,0 00 y e ars a g o. P oste d T ue J u l 4 , 2 017 a t 1 2:1 1 p m