id	keyword
gc-942	et al
gc-942	hainan
gc-942	granites
gc-942	china
gc-942	island
gc-942	gaofeng
gc-942	baocheng
gc-942	characteristics
gc-942	subduction
gc-942	rocks
gc-942	chinese
gc-942	tectonic
gc-942	south
gc-942	sea
gc-942	high
gc-942	doi
gc-942	type
gc-942	zircon
gc-942	crust
gc-942	hainan island
gc-942	abstract
gc-942	mesozoic