Assertion: reef's mine | /r/Causes | decline
Facets:
value: in extension
type: OTHER
value: in lough
type: LOCATION
value: in barnes
type: LOCATION
value: in coral density
type: OTHER
value: in calcification
type: OTHER
value: in papua new guinea
type: LOCATION
value: in tissue layer thickness
type: OTHER
Source sentences:
text: In Papua New Guinea, mines discharging heavy metals caused a decline in coral density, extension, calcification, and tissue layer thickness (Barnes and Lough, 1999; Fallon et al., 2002), and some metals like Zn and Pb remain in reefs many years after mining ceases (Fallon et al., 2002).