March 31 (Reuters) - Silver Standard Resources Inc SSO.TO
* Silver Standard exercises option to form joint venture with Golden Arrow for Chinchillas project
* Anticipate construction at Chinchillas to begin during Q3 of 2017
* Anticipate ore delivery to Pirquitas mill expected in second half of 2018
* Joint venture will be comprised of Silver Standard's Pirquitas property and Golden Arrow's Chinchillas property Source text for Eikon: ID:nCNWHnjh7a Further company coverage: SSO.TO