Gravel/sand quarry infrastructure (market for)

The activity generating the emissions is market for gravel/sand quarry infrastructure. The reference product is gravel/sand quarry infrastructure. This is an immobile infrastructure, representing the construction of a gravel and sand mine infrastructure. It is based on an operating plant with an yearly excavated amount of about 400,000 to 500,000 tons and its life time is assumed to be 50 years. The process includes constructed buildings and machineries for a gravel and sand mine, but it excludes land-use of the mining activities (quarrying). The reference product amount is 1. The cut-off classification is allocatable product. The activity type is ordinary market activity. Please refer to the ecoinvent documentation here for full details: https://ecoquery.ecoinvent.org/3.11/cutoff/dataset/7698/documentation.