activities   -   actors   -   community places   -   events   -   ideas   -   imaginary landscape   -   physical landscape   -   physical processes
http://www.cidoc-crm.org/cidoc-crm/P15i_influenced
http://www.cidoc-crm.org/cidoc-crm/P15i_influenced

Associations of type (2)


http://www.cidoc-crm.org/cidoc-crm/P15i_influenced
http://www.cidoc-crm.org/cidoc-crm/E26_Physical_Feature http://www.cidoc-crm.org/cidoc-crm/E5_Event
tephra  transformation 
tephra  abandonment