《Table 2 List of sixteen 1∶50 000 geological maps of western Henan completed from 2013 to 2016》

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《晋南–豫西地区1:500000数字地质图空间数据库》

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In terms of data quality control，a complete work log table was established.Each operator had to fill in the work log as required on a daily basis and fully record the daily work，which was then approved and signed by the operation team leader.A complete self-examination and mutual inspection form was created.Each operator carried out 100%self-examination when creating a map，and truthfully and fully recorded the results of the self-examination and revision，which was then approved and signed by the operation leader.With regards to selfexamination，the person in charge of the project had to organize mutual inspections among other operators with an inspection rate of 60%or above.The results of mutual inspection and revision had to be truthfully recorded，and then approved and signed by the operation leader.After each map was completed，10%of it was sampled for project inspection，while ensuring that all the inspection contents met relevant quality requirements.