A fair use statement regarding the full text of the request

Your requested [中国黄土高原最早的古人类活动记录] is currently limited to Guangzhou Institute of Geochemistry，Chinese Academy of Sciences internal sharing.

To solicit author authorization, you need to provide the following information: name, organization, personal e-mail, reason for request. The information you provide will be reviewed and you are committed to the truth of the information provided. The personal information you provide will be protected according to law.