id	keyword
esrj-72251	chang
esrj-72251	sandstones
esrj-72251	quartz
esrj-72251	cement
esrj-72251	porosity
esrj-72251	chlorite
esrj-72251	figure
esrj-72251	basin
esrj-72251	calcite
esrj-72251	detrital
esrj-72251	reservoir
esrj-72251	pores
esrj-72251	ordos
esrj-72251	minerals
esrj-72251	districts