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2012.86.1113 (2002-6-6)

Excavation of Σ section ... AMS Horizontal (normal) ... 2002 ... Excavation of Σ section.

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2012.86.1170 (2002-9-2)

Excavation of Σ section ... AMS Horizontal (normal) ... 2002 ... Excavation of Σ section.

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2012.86.1173 (2002-9-5)

Excavation of Σ section ... AMS Horizontal (normal) ... 2002 ... Excavation of Σ section.

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2012.86.1233 (2002-12-2)

Excavation of Σ section ... AMS Horizontal (normal) ... 2002 ... Excavation of Σ section.