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mal style="MARGIN: 0cm 0cm 0pt; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan; mso-outline-level: 2">Remote Sensing Information Extraction of Wall Rock Alteration in Xi Ujimqin Banner, mas-microsoft-com:office:smarttags" />Inner Mongoliamas-microsoft-com:office:office" />

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mal style="MARGIN: 0cm 0cm 0pt">///Mask technique is applied to eliminate interfere factors at surface and principal component transfer technique is used to enhance the alteration information and the alteration information is extracted by using false color composite and unsuperised classification techniques.mas-microsoft-com:office:office" />

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