( ( Because ( ( cosmogenic isotopes ) ( have ( ( long half-lives ) ( -LRB- ( ( anywhere ( from ( thousands ( to ( millions ( of years ) ) ) ) ) ) -RRB- ) ) ) ) ) ) ( , ( scientists ( ( find ( them ( ( useful ( for geologic ) ) dating ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Because) (S (NP (JJ cosmogenic) (NNS isotopes)) (VP (VBP have) (NP (NP (JJ long) (NNS half-lives)) (PRN (-LRB- -LRB-) (NP (NP (RB anywhere)) (PP (IN from) (NP (NP (NNS thousands)) (PP (TO to) (NP (NP (NNS millions)) (PP (IN of) (NP (NNS years)))))))) (-RRB- -RRB-)))))) (, ,) (NP (NNS scientists)) (VP (VBP find) (S (NP (PRP them)) (ADJP (JJ useful) (PP (IN for) (ADJP (JJ geologic)))) (S (VP (VBG dating))))) (. .)))
Because cosmogenic isotopes have long half-lives (anywhere from thousands to millions of years), scientists find them useful for geologic dating.
(ROOT (S (NP (DT The) (JJ long-lived) (NNS isotopes)) (VP (VBP require) (NP (NP (NNS thousands)) (PP (IN of) (NP (NP (NNS years)) (PP (TO to) (NP (NN decay)))))) (PP (TO to) (NP (NP (DT a) (JJ safe) (NN level)) (PP (IN in) (NP (DT a) (JJ nuclear) (NN reactor)))))) (. .)))